ASCO H137 Solenoid Valves – Hydramotor Gas Shutoff Valve

ASCO H137 solenoid valves gas shutoff valve

ASCO H137 solenoid valves. T&D are an ASCO Numatics Authorised Distribution Channel.

ASCO H137 solenoid valves are part of the ASCO Red Hat range of valves.

ASCO H137 solenoid valves are 2 way, normally closed, safety shutoff valves providing electro-hydraulic on-off control of combustion gas for boilers, industrial furnaces, dryers, dehydrators, large conversion burners and air heaters.

The self contained hydramotor actuator is a powerful, pull-type hydraulic ram providing output force of 1400 pounds to fully open the valve.

Upon current interruption, dual redundant relief valves dump hydraulic pressure which in turn will close the valve in one second.

The ASCO H137 solenoid valve hydramotor consists of of a motor/pump unit immersed in oil, reducing wear and provides highly reliable operation.

ASCO H137 Solenoid Valves – Product Features

  • Watertight and Explosionproof enclosures
  • Visual indicator and POC standard
  • High flow
  • High pressure
  • Mountable in any position
  • Broad ambient temperature range#

ASCO H137 Solenoid Valves – Product Specifications

Opening TimeClosing TimeEnclosureAmbient TemperatureBody ClassPipe Taps
27 Second Max1 second maxType 4 Watertight standardType 7 Explosion proof optional-40˚F to 150˚F (-40˚C to 66˚C)Cast Iron, 2″ to 3″: 250# screw, 4″ – 6″: 125# flanges1/4″ upstream & downstream taps for routine leak testing

ASCO H137 Solenoid Valves – Electrical Specifications

Operating VoltageAmperes
Inrush Opening Holding


ASCO solenoid valves (2-way, 3-way and 4-way type including NAMUR interfaces) control the critical flow of air, gas, water, oil and steam across all industries – hazardousSIL IEC 61508 - Solenoid Valves area solenoid valves are available for Division and Zone classifications.

Class I, Division 2 and Zone 1/Zone 2 approved solenoid valves according to ATEX, IECEx, FM, CSA and UL are available. Flameproof and explosion-proof valves can be specified for potentially explosive atmospheres where there is a presence of flammable liquids, gases or vapours.

ASCO valves improve reliability and performance of safety systems according to IEC 61508, IEC 61511 and Safety Integrity Levels (SIL) – ASCO spool valves with SIL 4 capability are SAEL listed as assessed by Exida and TÜV.

➡ Did you know? T&D Exports support the global oil, gas and petrochemical industries providing a single-source supply capability of Hazardous Area Equipment across Electrical, Mechanical, Process & Instrumentation ranges.

Solenoid Valves ASCO

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