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The ASCO Series HV434 is a family of low-temperature, stainless-steel shutoff valves with proof of closure for on-off or gas pilot control of commercial and industrial gas burners in harsh environments. The valves combine a unique double-disc design with a rugged 303 SST GO™ Switch to provide electrical indication of "closed" position. Their low-power DC peak-and-hold constructions reduce energy consumption to 0.85 W (hold). The valves design with large pilot orifice provides consistent and reliable operation. Suitable for applications such as tank heaters, line heaters, incinerators and flare stacks.
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Manufacturer: Asco Numatics
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Valve Type: Solenoid & Switches
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Sub-Type: Solenoid Valves
- Requires zero minimum pressure differential for robust operation in locations with low supply pressure
- Solenoid operator and proof-of-closure switch have Class I, Div. 1 enclosures for use in hazardous locations
- Wide ambient temperature range of -40° F to 125° F (-40° C to 52° C)
- Maximum operating pressure differential up to 50 psi (3.4 bar)
- Resilient soft seating for tight shutoff
- Complies with ANSI/ISA-12.27.01.2003 single-seal requirements
- Meets the metallurgical requirements of NACE MR0175-2003 (DC only)
- Offered in 1" pipe size
- Available in AC and DC voltages
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