{"id":19092,"date":"2026-02-06T11:52:40","date_gmt":"2026-02-06T03:52:40","guid":{"rendered":"https:\/\/dmcgas.com\/?post_type=product&p=19092"},"modified":"2026-02-06T12:31:19","modified_gmt":"2026-02-06T04:31:19","slug":"honeywell-j42-gas-meter-regulator","status":"publish","type":"product","link":"https:\/\/dmcgas.com\/en\/product\/honeywell-j42-gas-meter-regulator\/","title":{"rendered":"Honeywell Elster Jeavons J42 Gas Meter Service Regulator"},"content":{"rendered":"

HONEYWELL ELSTER JEAVONS J42 Meter Service Regulator<\/p>\n

\u00a0Product Overview\u200c<\/strong>
\nThe J42 meter service regulator is a well-proven and trusted design that meets current standards. It utilizes established principles of control dynamics combined with modern assembly techniques to deliver excellent performance in a compact, low-cost, maintenance-free unit.<\/p>\n

Application & Operation\u200c<\/strong><\/p>\n

Application:\u200c The J42 is an angled type regulator designed for low-pressure domestic meter applications. It handles inlet pressures up to 350 mbar, features full lock-up capability, and is available with or without an integral Under Pressure Cut Off (UPCO). The UPCO version includes an automatic reset function that re-establishes supply based on system integrity. The regulator can be mounted in either a vertical or horizontal orientation.
\nSuitable Gases:\u200c Natural gas, liquefied petroleum gas (LPG), and manufactured gases.<\/p>\n

Control & Adjustment\u200c<\/strong><\/p>\n

Factory Setting:\u200c The outlet pressure is set at the factory according to the customer’s specification, and the unit is sealed.
\nField Adjustment:\u200c If adjustment is necessary, the seal can be broken to access the spring adjusting screw under the top cap. This design makes unauthorized adjustments evident. After adjustment, the top cap can be re-sealed (seal not provided).<\/p>\n

Technical Data\u200c<\/strong><\/p>\n

Maximum Inlet Pressure (Pi max):\u200c350 mbar (5 psig)
\nFor PRS3 Application: 75 mbar
\nFor Gastec Application: 200 mbar
\nOutlet Pressure Range:\u200c Customer specified, between 10 \u2013 40 mbar.
\nUPCO Trip Pressure Range:\u200c Customer specified, between 4 \u2013 25 mbar.
\nSizes:\u200c \u00bd\u201d x \u00bd\u201d, \u00be\u201d x \u00be\u201d, and \u00be\u201d x Meter Union.
\nTemperature Range:\u200c -20\u00b0C to +60\u00b0C.
\nThreaded Connections:\u200c BS EN 10226 (ISO 7) or NPT (other threads available upon request).
\nWeight:\u200c
\nStandard Regulator: 320g
\nRegulator with UPCO: 340g<\/p>\n

Features & Benefits\u200c<\/strong><\/p>\n

Main Features:\u200c
\nFully inlet pressure balanced
\nFull lock-up capability
\nInternal impulse sensing
\nSpring loaded
\nExcellent outlet pressure control
\nOptions:\u200c
\nUnder Pressure Cut Off (UPCO)
\nMeter union outlet connection
\nInlet mesh filter<\/p>\n

Material Specifications\u200c<\/strong>
\nAll materials are selected for maximum durability and reliability in service.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n
Component<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Body and Top Cover<\/td>\nAluminium<\/td>\n<\/tr>\n
Diaphragms, Valve Disc & O-Rings<\/td>\nNitrile Rubber (Buna)<\/td>\n<\/tr>\n
Adjusting Screw<\/td>\nMild Steel<\/td>\n<\/tr>\n
Internal Support Structure<\/td>\nAcetal Resin<\/td>\n<\/tr>\n
Top Cap<\/td>\nAcetal Resin (UV Stabilised)<\/td>\n<\/tr>\n
Top Bush<\/td>\nZinc Alloy<\/td>\n<\/tr>\n
Spring<\/td>\nStainless Steel<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Brand: Honeywell Elster Jeavons
\nModel: J42\u00a0[product_badge]
\nConnection Sizes: \u00bd” x \u00bd”, \u00be” x \u00be”, and \u00be” x Meter Union
\nMaximum Inlet Pressure: 350 mbar
\nMaximum Inlet Pressure (Meter QA): 200 mbar
\nOutlet Pressure Range: 10 \u2013 40 mbar
\nMaximum Flow Rate: 6 m\u00b3\/h
\nBody Material: Cast Aluminum
\nOperating Temperature Range: -20\u00b0C ~ 70\u00b0C
\nSuitable Media: Natural Gas, Manufactured Gas, Liquefied Petroleum Gas (LPG)<\/p>\n

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