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Elster has developed a range of safety control devices to guarantee the safe control of gas to protect equipment and appliances from excessive variations above and below the designed pressure parameters. This includes pressure and creep relief valves, over pressure and under pressure slam shut valves and low pressure cut off valves.
They can be used with natural, liquified petroleum and manufactured gases.
These units, designed where appropriate to National and International standards, give high efficiency and sensitivity with maximum flow and minimum pressure loss.

J120

J120

The J120 is a safety valve which ensures the integrity of an installation in the event of loss of gas pressure. In the event of pressure drop, the J120 is activated and shuts off the gas supply to the downstream appliances until the manual or automatic reset mechanism is operated. The J120 is available in sizes from ¾" to 2" and supplied factory set. The J120 ensures the safety and ...

Safety devicesElster GmbH
J48K

J48K

As part of the comprehensive range of safety equipment, Elster Jeavons produces two special versions of the proven J48 range. These are the J48K pressure relief valve and the J48KC creep relief valve. Both versions incorporate quick release spring adjustment mechanisms which provide easy access for spring adjustment and routine maintenance. The J48K pressure relief valve guards against excess ...

Safety devicesElster GmbH
S100

S100

The S100 Slam Shut Valve protects gas installations against dangerous overpressure conditions and is normally fitted on the inlet side of the regulator. The S100 incorporates a visual valve position indicator. It can be supplied with a micro switch for remote indication. The manual reset has an automatic integral equalising valve ensuring safe resetting procedures and eliminating costly by-pass ...

Safety devicesElster GmbH
S200

S200

The S200 Slam Shut Valve protects gas installations against dangerous under pressure and over pressure conditions and is normally fitted on the inlet side of the regulator. The S200 is available with a visual and/or micro switch valve position indicator. The manual reset has an automatic integral equalising valve ensuring safe resetting procedures and eliminating costly by-pass systems. The S200 ...

Safety devicesElster GmbH
S300

S300

The S300 in-line over pressure slam shut (OPSS) protects gas installations, especially polyethylene pipework, from dangerous overpressure conditions and can be fitted either before or after the first stage regulator (see over the page for installation diagrams). Versions are available with either internal or external impulse. When the pressure increases above a predetermined value the trigger ...

Safety devicesElster GmbH
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