{"title":"40mm Pressure Gauges","description":"\u003ch2\u003e40mm Pressure Gauges\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003e40mm Pressure Gauges\u003c\/strong\u003e are compact pressure indicators for industrial applications where space is limited and local pressure measurement is required. They are commonly used on pneumatic equipment, hydraulic units, compressors, panels and OEM machinery.\u003c\/p\u003e\u003cp\u003eThis small dial format is useful for replacement gauges, maintenance stock, new equipment builds and compact process instrumentation. Dry and glycerine filled options may be selected depending on the operating environment and the level of vibration or pressure pulsation present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact format:\u003c\/strong\u003e suited to equipment with limited panel or installation space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial use:\u003c\/strong\u003e supports routine pressure monitoring on air, hydraulic and machine systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelection factors:\u003c\/strong\u003e match pressure range, connection, mounting style and media compatibility before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"40mm-bottom-entry-all-stainless-steel-pressure-gauge","title":"40mm Bottom Entry All Stainless Steel Pressure Gauge","description":"\u003ch2\u003e40mm Bottom Entry All Stainless Steel Pressure Gauge\u003c\/h2\u003e\n\n\u003cp\u003eThe 40mm Bottom Entry All Stainless Steel Pressure Gauge from GNW Instrumentation provides compact local pressure indication for industrial installations where space is limited and a bottom-mounted connection is required. Its small dial size makes it practical for machinery, pipework and packaged equipment where a larger instrument would be difficult to position or read without affecting the surrounding layout.\u003c\/p\u003e\n\n\u003cp\u003eThis all stainless steel pressure gauge uses a 304 stainless steel case with 316 stainless steel wetted parts, making it appropriate for compatible industrial media and environments where stainless steel construction is preferred. The bottom entry configuration supports direct mounting from below, helping engineers maintain a neat installation on vertical runs, compact manifolds and OEM assemblies.\u003c\/p\u003e\n\n\u003cp\u003eWith a stated accuracy of 2.5%, the gauge is intended for defined pressure indication duties where this accuracy class matches the application requirement or purchasing specification. It is well suited to local visual monitoring, maintenance replacement and equipment build applications where a compact industrial pressure gauge is specified.\u003c\/p\u003e\n\n\u003ch2\u003eEngineering and Procurement Considerations\u003c\/h2\u003e\n\n\u003cp\u003eWhen selecting this gauge, compatibility with the process medium, mounting arrangement and required accuracy should be checked against the installation specification. The 40mm dial offers a practical balance between instrument size and readability for close-range inspection points.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompact 40mm dial for restricted installation spaces\u003c\/li\u003e\n  \u003cli\u003eBottom entry connection for direct lower mounting\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel case with 316 stainless steel wetted parts\u003c\/li\u003e\n  \u003cli\u003e2.5% accuracy for specified industrial indication duties\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GNW Instrumentation","offers":[{"title":"'-1\/0 bar to 0\/+2 bar \u0026 -30\/0 inHg to 0\/+30 psi \/ 1\/8\" BSP \/ No","offer_id":55506102845816,"sku":"PG2601E","price":50.0,"currency_code":"GBP","in_stock":true},{"title":"'-1\/0 bar \u0026 -30\/0 inHg \/ 1\/8\" BSP \/ No","offer_id":55506102878584,"sku":"PG2602E","price":50.0,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8\" BSP \/ 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Instrumentation","offers":[{"title":"-1\/0 bar to 0\/+2 bar \u0026 -30\/0 inHg to 0\/+30 psi \/ 1\/8 BSPT \/ No","offer_id":55502211776888,"sku":"PG0414E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar \u0026 -30\/0 inHg \/ 1\/8 BSPT \/ No","offer_id":55502211809656,"sku":"PG0415E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ No","offer_id":33047212064843,"sku":"PG0416E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ No","offer_id":33047212097611,"sku":"PG0417E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ No","offer_id":33047212130379,"sku":"PG0418E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ No","offer_id":33047212163147,"sku":"PG0419E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ No","offer_id":33047212195915,"sku":"PG0420E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ No","offer_id":33047212228683,"sku":"PG0421E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ No","offer_id":33047212261451,"sku":"PG0422E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ No","offer_id":33047212294219,"sku":"PG0423E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/41 bar \u0026 0\/600 psi \/ 1\/8 BSPT \/ No","offer_id":33047212326987,"sku":"PG0424E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/70 bar \u0026 0\/1000 psi \/ 1\/8 BSPT \/ No","offer_id":33047212359755,"sku":"PG0425E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/100 bar \u0026 0\/1500 psi \/ 1\/8 BSPT \/ No","offer_id":55530270523768,"sku":"PG0426E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/140 bar \u0026 0\/2000 psi \/ 1\/8 BSPT \/ No","offer_id":55530270556536,"sku":"PG0427E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/170 bar \u0026 0\/2500 psi \/ 1\/8 BSPT \/ No","offer_id":55530270589304,"sku":"PG0428E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/210 bar \u0026 0\/3000 psi \/ 1\/8 BSPT \/ No","offer_id":55530270622072,"sku":"PG0429E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"0\/280 bar \u0026 0\/4000 psi \/ 1\/8 BSPT \/ No","offer_id":55530270654840,"sku":"PG0430E-GF","price":39.95,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar to 0\/+2 bar \u0026 -30\/0 inHg to 0\/+30 psi \/ 1\/8 BSPT \/ Yes","offer_id":55502211842424,"sku":"PG0414E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar \u0026 -30\/0 inHg \/ 1\/8 BSPT \/ Yes","offer_id":55502211875192,"sku":"PG0415E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ Yes","offer_id":33047212621899,"sku":"PG0416E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ Yes","offer_id":33047212654667,"sku":"PG0417E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ Yes","offer_id":33047212687435,"sku":"PG0418E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ Yes","offer_id":33047212720203,"sku":"PG0419E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ Yes","offer_id":33047212752971,"sku":"PG0420E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ 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Yes","offer_id":55530270720376,"sku":"PG0427E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/170 bar \u0026 0\/2500 psi \/ 1\/8 BSPT \/ Yes","offer_id":55530270753144,"sku":"PG0428E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/210 bar \u0026 0\/3000 psi \/ 1\/8 BSPT \/ Yes","offer_id":55530270785912,"sku":"PG0429E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true},{"title":"0\/280 bar \u0026 0\/4000 psi \/ 1\/8 BSPT \/ Yes","offer_id":55530270818680,"sku":"PG0430E-GF-CERT","price":90.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/5402\/1451\/products\/40mm-bottom-entry-glycerine-filled-pressure-gauge.jpg?v=1759756983"},{"product_id":"40mm-bottom-entry-general-purpose-pressure-gauge","title":"40mm Bottom Entry General Purpose Pressure Gauge","description":"\u003ch4\u003eCompact General Purpose Pressure Gauge for Light Duty Hydraulic \u0026amp; Pneumatic Use\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eGNW 40mm Bottom Entry General Purpose Pressure Gauge\u003c\/strong\u003e is a compact, cost-effective gauge designed for light duty hydraulic and pneumatic applications where a small dial size and reliable indication are required. With robust construction and a clear dual-scale dial, it’s ideal for panels, tight spaces, machines and general workshop installations.\u003c\/p\u003e\n\u003cp\u003eAvailable in a range of \u003cstrong\u003edual-scale bar\/psi ranges\u003c\/strong\u003e from \u003cstrong\u003e-1\/0 bar compound\u003c\/strong\u003e up to \u003cstrong\u003e0–28 bar (0–400 psi)\u003c\/strong\u003e, this gauge is supplied with a \u003cstrong\u003e1\/8\" BSPT bottom connection\u003c\/strong\u003e as standard. An optional \u003cstrong\u003etraceable calibration certificate\u003c\/strong\u003e is available for compliance and documentation.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact 40mm Dial:\u003c\/strong\u003e Ideal for panels, tight spaces, machines and general plant use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGeneral Purpose Construction:\u003c\/strong\u003e Brass connection, element and movement suited to compatible media in standard industrial environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRobust Case:\u003c\/strong\u003e Black enamelled steel case for everyday durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Scale Dial:\u003c\/strong\u003e PSI outer scale with Bar inner scale for quick reading.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBottom Entry Connection:\u003c\/strong\u003e 1\/8\" BSPT thread as standard for straightforward installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptional Calibration:\u003c\/strong\u003e Add a traceable calibration certificate at checkout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"6\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDial Size\u003c\/td\u003e\n      \u003ctd\u003e40 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection\u003c\/td\u003e\n      \u003ctd\u003eBottom Entry, 1\/8\" BSPT (standard)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCase\u003c\/td\u003e\n      \u003ctd\u003eBlack enamelled steel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBezel\u003c\/td\u003e\n      \u003ctd\u003ePush fit window\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWindow\u003c\/td\u003e\n      \u003ctd\u003eAcrylic\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWetted Parts\u003c\/td\u003e\n      \u003ctd\u003eBrass (connection, sensitive element, movement)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eJoints\u003c\/td\u003e\n      \u003ctd\u003eSoldered silver alloy\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDial\u003c\/td\u003e\n      \u003ctd\u003eStoved enamel on aluminium\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePointer\u003c\/td\u003e\n      \u003ctd\u003eBlack aluminium\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eAccuracy\u003c\/td\u003e\n      \u003ctd\u003eClass 2.5\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eScale\u003c\/td\u003e\n      \u003ctd\u003eDual: PSI (outer) \/ Bar (inner)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRanges Available\u003c\/td\u003e\n      \u003ctd\u003e-1\/0 bar \u0026amp; -30\/0\"Hg up to 0\/28 bar (0\/400 psi)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCalibration\u003c\/td\u003e\n      \u003ctd\u003eOptional Traceable Calibration Certificate\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHydraulic Systems\u003c\/strong\u003e – Compact gauge for light duty equipment and local indication.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePneumatic Installations\u003c\/strong\u003e – Compressed air and general plant pressure indication.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM \u0026amp; Workshop Equipment\u003c\/strong\u003e – Space-saving dial size for panels, machines and test setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGeneral Industrial Use\u003c\/strong\u003e – Everyday monitoring where brass wetted parts are suitable for the media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"text-align: center; margin-top: 20px;\"\u003e\n  \u003ca style=\"display: inline-block; background-color: #99cc00; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; margin: 5px;\" href=\"https:\/\/www.gnwshop.co.uk\/blogs\/news\/why-add-calibration-to-your-pressure-gauges?\"\u003e\n    Why Add Calibration?\n  \u003c\/a\u003e\n  \u003ca style=\"display: inline-block; background-color: #99cc00; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; margin: 5px;\" href=\"\/collections\/pressure-gauge-accessories\"\u003e\n    Add Connection Adapters\n  \u003c\/a\u003e\n\u003c\/div\u003e","brand":"GNW","offers":[{"title":"–1\/0 bar \u0026 –30\/0 inHg \/ 1\/8 BSPT \/ No","offer_id":55498575937912,"sku":"PG0001E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ No","offer_id":33044934656075,"sku":"PG0002E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ No","offer_id":33044934688843,"sku":"PG0003E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ No","offer_id":33044934721611,"sku":"PG0004E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ No","offer_id":33044934754379,"sku":"PG0005E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ No","offer_id":33044934787147,"sku":"PG0006E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ No","offer_id":33044934819915,"sku":"PG0007E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ No","offer_id":33044934852683,"sku":"PG0008E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ No","offer_id":33044934885451,"sku":"PG0009E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"–1\/0 bar \u0026 –30\/0 inHg \/ 1\/8 BSPT \/ Yes","offer_id":55498575970680,"sku":"PG0001E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044934950987,"sku":"PG0002E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044934983755,"sku":"PG0003E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935016523,"sku":"PG0004E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935049291,"sku":"PG0005E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935082059,"sku":"PG0006E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935114827,"sku":"PG0007E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935147595,"sku":"PG0008E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935180363,"sku":"PG0009E-CERT","price":56.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/5402\/1451\/products\/40gpbot.jpg?v=1613390015"},{"product_id":"40mm-back-entry-general-purpose-pressure-gauge","title":"40mm Back Entry General Purpose Pressure Gauge","description":"\u003ch4\u003eCompact General Purpose Pressure Gauge for Light Duty Hydraulic \u0026amp; Pneumatic Use\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003eGNW 40mm Back Entry General Purpose Pressure Gauge\u003c\/strong\u003e is a compact, cost-effective gauge designed for light duty hydraulic and pneumatic applications where a small dial size and reliable indication are required. With robust construction and a clear dual-scale dial, it’s ideal for panels, tight spaces, machines and general workshop installations.\u003c\/p\u003e\n\u003cp\u003eAvailable in a range of \u003cstrong\u003edual-scale bar\/psi ranges\u003c\/strong\u003e from \u003cstrong\u003e-1\/0 bar compound\u003c\/strong\u003e up to \u003cstrong\u003e0–28 bar (0–400 psi)\u003c\/strong\u003e, this gauge is supplied with a \u003cstrong\u003e1\/8\" BSPT centre back connection\u003c\/strong\u003e as standard. An optional \u003cstrong\u003etraceable calibration certificate\u003c\/strong\u003e is available for compliance and documentation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact 40mm Dial:\u003c\/strong\u003e Ideal for panels, tight spaces, machines and general plant use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral Purpose Construction:\u003c\/strong\u003e Brass connection, element and movement suited to compatible media in standard industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Case:\u003c\/strong\u003e Black enamelled steel case for everyday durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Scale Dial:\u003c\/strong\u003e PSI outer scale with Bar inner scale for quick reading.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Entry Connection:\u003c\/strong\u003e 1\/8\" BSPT thread as standard for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Calibration:\u003c\/strong\u003e Add a traceable calibration certificate at checkout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable cellpadding=\"6\" cellspacing=\"0\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDial Size\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eCentre Back Entry, 1\/8\" BSPT (standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase\u003c\/td\u003e\n\u003ctd\u003eBlack enamelled steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBezel\u003c\/td\u003e\n\u003ctd\u003ePush fit window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWindow\u003c\/td\u003e\n\u003ctd\u003eAcrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWetted Parts\u003c\/td\u003e\n\u003ctd\u003eBrass (connection, sensitive element, movement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoints\u003c\/td\u003e\n\u003ctd\u003eSoldered silver alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDial\u003c\/td\u003e\n\u003ctd\u003eStoved enamel on aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointer\u003c\/td\u003e\n\u003ctd\u003eBlack aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eClass 2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScale\u003c\/td\u003e\n\u003ctd\u003eDual: PSI (outer) \/ Bar (inner)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRanges Available\u003c\/td\u003e\n\u003ctd\u003e-1\/0 bar \u0026amp; -30\/0\"Hg up to 0\/28 bar (0\/400 psi)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eOptional Traceable Calibration Certificate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic Systems\u003c\/strong\u003e – Compact gauge for light duty equipment and local indication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePneumatic Installations\u003c\/strong\u003e – Compressed air and general plant pressure indication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM \u0026amp; Workshop Equipment\u003c\/strong\u003e – Space-saving dial size for panels, machines and test setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGeneral Industrial Use\u003c\/strong\u003e – Everyday monitoring where brass wetted parts are suitable for the media.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center; margin-top: 20px;\"\u003e\n\u003ca href=\"https:\/\/www.gnwshop.co.uk\/blogs\/news\/why-add-calibration-to-your-pressure-gauges?\" style=\"display: inline-block; background-color: #99cc00; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; margin: 5px;\"\u003e Why Add Calibration? \u003c\/a\u003e \u003ca href=\"\/collections\/pressure-gauge-accessories\" style=\"display: inline-block; background-color: #99cc00; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; margin: 5px;\"\u003e Add Connection Adapters \u003c\/a\u003e\n\u003c\/div\u003e","brand":"GNW","offers":[{"title":"–1\/0 bar \u0026 –30\/0 inHg \/ 1\/8 BSPT \/ No","offer_id":55498673160568,"sku":"PG0010E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ No","offer_id":33044935311435,"sku":"PG0011E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ No","offer_id":33044935344203,"sku":"PG0012E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ No","offer_id":33044935376971,"sku":"PG0013E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ No","offer_id":33044935409739,"sku":"PG0014E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ No","offer_id":33044935442507,"sku":"PG0015E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ No","offer_id":33044935475275,"sku":"PG0016E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ No","offer_id":33044935508043,"sku":"PG0017E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ No","offer_id":33044935540811,"sku":"PG0018E","price":16.5,"currency_code":"GBP","in_stock":true},{"title":"–1\/0 bar \u0026 –30\/0 inHg \/ 1\/8 BSPT \/ Yes","offer_id":55498673193336,"sku":"PG0010E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935606347,"sku":"PG0011E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935639115,"sku":"PG0012E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935671883,"sku":"PG0013E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935704651,"sku":"PG0014E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935737419,"sku":"PG0015E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935770187,"sku":"PG0016E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935802955,"sku":"PG0017E-CERT","price":56.0,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ Yes","offer_id":33044935835723,"sku":"PG0018E-CERT","price":56.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/5402\/1451\/products\/40gpback.jpg?v=1613390056"},{"product_id":"40mm-back-entry-industrial-pressure-gauge","title":"40mm Back Entry Industrial Pressure Gauge","description":"\u003ch2\u003eCompact Rear-Mounted Pressure Indication\u003c\/h2\u003e\n\n\u003cp\u003eThe 40mm Back Entry Industrial Pressure Gauge from GNW Instrumentation provides a compact pressure indication point for equipment where space is limited and a front-facing dial is preferred. Its rear connection format helps support neat panel or housing installation, keeping the gauge face aligned with the operator while reducing exposed side pipework.\u003c\/p\u003e\n\n\u003cp\u003eWith a 40mm dial, this industrial pressure gauge is well matched to compact OEM assemblies, pneumatic control equipment, small skids and replacement duties where the existing installation calls for a back entry gauge of the same size. The stated accuracy is 2.5%, making it appropriate for general industrial indication where this tolerance meets the measurement requirement.\u003c\/p\u003e\n\n\u003cp\u003eThe 304 stainless steel case provides practical external protection for plant and equipment environments, while the brass wetted parts should be checked against the process medium before selection. This is particularly important for maintenance buyers replacing an existing gauge, where compatibility with the service fluid and connection arrangement must be confirmed.\u003c\/p\u003e\n\n\u003ch2\u003eSelection and Installation Considerations\u003c\/h2\u003e\n\n\u003cp\u003eBefore ordering, engineers and procurement teams should confirm that the gauge format aligns with the mechanical layout, readability requirement and process compatibility of the installation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCheck that a 40mm dial provides sufficient visibility for the operator position.\u003c\/li\u003e\n  \u003cli\u003eConfirm the back entry connection suits the panel, enclosure or equipment housing.\u003c\/li\u003e\n  \u003cli\u003eVerify that 2.5% accuracy is acceptable for the intended pressure indication duty.\u003c\/li\u003e\n  \u003cli\u003eEnsure brass wetted parts are compatible with the process media.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GNW Instrumentation","offers":[{"title":"-1\/0 bar to 0\/+2 bar \u0026 -30\/0 inHg to 0\/+30 psi \/ 1\/8 BSPT \/ No","offer_id":55503134032248,"sku":"PG0431E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar \u0026 -30\/0 inHg \/ 1\/8 BSPT \/ No","offer_id":55503134065016,"sku":"PG0432E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ No","offer_id":33045992865867,"sku":"PG0433E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ No","offer_id":33045992898635,"sku":"PG0434E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ No","offer_id":33045992931403,"sku":"PG0435E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ No","offer_id":33045992964171,"sku":"PG0436E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ No","offer_id":33045992996939,"sku":"PG0437E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ No","offer_id":33045993029707,"sku":"PG0438E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ No","offer_id":33045993062475,"sku":"PG0439E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ No","offer_id":33045993095243,"sku":"PG0440E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/41 bar \u0026 0\/600 psi \/ 1\/8 BSPT \/ No","offer_id":33045993128011,"sku":"PG0441E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/70 bar \u0026 0\/1000 psi \/ 1\/8 BSPT \/ No","offer_id":33045993160779,"sku":"PG0442E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/100 bar \u0026 0\/1500 psi \/ 1\/8 BSPT \/ No","offer_id":55503134097784,"sku":"PG0443E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/140 bar \u0026 0\/2000 psi \/ 1\/8 BSPT \/ No","offer_id":55503134130552,"sku":"PG0444E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/170 bar \u0026 0\/2500 psi \/ 1\/8 BSPT \/ No","offer_id":55503134163320,"sku":"PG0445E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/210 bar \u0026 0\/3000 psi \/ 1\/8 BSPT \/ No","offer_id":55503134196088,"sku":"PG0446E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"0\/280 bar \u0026 0\/4000 psi \/ 1\/8 BSPT \/ No","offer_id":55503134228856,"sku":"PG0447E","price":40.0,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar to 0\/+2 bar \u0026 -30\/0 inHg to 0\/+30 psi \/ 1\/8 BSPT \/ Yes","offer_id":55503134261624,"sku":"PG0431E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar \u0026 -30\/0 inHg \/ 1\/8 BSPT \/ Yes","offer_id":55503134294392,"sku":"PG0432E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/1 bar \u0026 0\/15 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993422923,"sku":"PG0433E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/2 bar \u0026 0\/30 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993455691,"sku":"PG0434E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/4 bar \u0026 0\/60 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993488459,"sku":"PG0435E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/7 bar \u0026 0\/100 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993521227,"sku":"PG0436E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/11 bar \u0026 0\/160 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993553995,"sku":"PG0437E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/14 bar \u0026 0\/200 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993586763,"sku":"PG0438E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/21 bar \u0026 0\/300 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993619531,"sku":"PG0439E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/28 bar \u0026 0\/400 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993652299,"sku":"PG0440E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/41 bar \u0026 0\/600 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993685067,"sku":"PG0441E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/70 bar \u0026 0\/1000 psi \/ 1\/8 BSPT \/ Yes","offer_id":33045993717835,"sku":"PG0442E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/100 bar \u0026 0\/1500 psi \/ 1\/8 BSPT \/ Yes","offer_id":55503134327160,"sku":"PG0443E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/140 bar \u0026 0\/2000 psi \/ 1\/8 BSPT \/ Yes","offer_id":55503134359928,"sku":"PG0444E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/170 bar \u0026 0\/2500 psi \/ 1\/8 BSPT \/ Yes","offer_id":55503134392696,"sku":"PG0445E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/210 bar \u0026 0\/3000 psi \/ 1\/8 BSPT \/ Yes","offer_id":55503134425464,"sku":"PG0446E-CERT","price":75.5,"currency_code":"GBP","in_stock":true},{"title":"0\/280 bar \u0026 0\/4000 psi \/ 1\/8 BSPT \/ Yes","offer_id":55503134458232,"sku":"PG0447E-CERT","price":75.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0275\/5402\/1451\/products\/40mm-back-entry-industrial-pressure-gauge.jpg?v=1759308458"},{"product_id":"40mm-bottom-entry-industrial-pressure-gauge","title":"40mm Bottom Entry Industrial Pressure Gauge","description":"\u003ch2\u003e40mm Bottom Entry Industrial Pressure Gauge for Compact Local Indication\u003c\/h2\u003e\n\n\u003cp\u003eThe 40mm Bottom Entry Industrial Pressure Gauge from GNW Instrumentation provides a compact analogue pressure indication point for general industrial equipment, assemblies and plant maintenance work. Its 40mm dial format is appropriate where available space is limited but a clear local pressure reference is still required for inspection, adjustment or routine operator checks.\u003c\/p\u003e\n\n\u003cp\u003eWith a bottom entry connection, this industrial pressure gauge is suited to installations where the gauge is mounted directly above pipework, regulators, manifolds or small equipment connections. This arrangement is commonly preferred on compact machinery and packaged assemblies where the gauge needs to sit in line with the process connection rather than being panel mounted.\u003c\/p\u003e\n\n\u003cp\u003eThe 304 stainless steel case gives the gauge a robust external construction for industrial environments, while brass wetted parts make it relevant for compatible pressure media in general service. The stated 2.5% accuracy supports practical local indication duties where the gauge is used as a visual reference rather than as a precision test instrument.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation and Selection Notes\u003c\/h2\u003e\n\n\u003cp\u003eThis gauge is a practical choice for OEM builds, maintenance replacement and compact plant installations where space, mounting orientation and material compatibility need to be considered together. Selection should be based on the pressure media, process connection requirements and the required level of indication accuracy for the application.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e40mm dial size for restricted mounting locations and compact equipment layouts.\u003c\/li\u003e\n  \u003cli\u003eBottom entry configuration for direct installation on pipework, regulators or manifolds.\u003c\/li\u003e\n  \u003cli\u003e304 stainless steel case for external industrial durability.\u003c\/li\u003e\n  \u003cli\u003eBrass wetted parts for compatible general industrial media.\u003c\/li\u003e\n  \u003cli\u003e2.5% accuracy for dependable local pressure indication.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GNW Instrumentation","offers":[{"title":"-1\/0 bar to 0\/+2 bar \u0026 -30\/0 inHg to 0\/+30 psi \/ 1\/8 BSPT \/ No","offer_id":55503148351864,"sku":"PG0414E","price":34.95,"currency_code":"GBP","in_stock":true},{"title":"-1\/0 bar \u0026 -30\/0 inHg \/ 1\/8 BSPT \/ 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