ASCO 047 Solenoid Valves – Explosion Proof Manual Reset Valve (4 Way)

ASCO 047 solenoid valves. T&D are an ASCO Numatics Authorised Distribution Channel.

ASCO 047 solenoid valves. T&D are an ASCO Numatics Authorised Distribution Channel.

ASCO 047 solenoid valves are part of the ASCO Red Hat range of valves.

ASCO 047 solenoid valves are manual reset version of the ASCO 8342 series of solenoid valves (1/4″ and 3/8″ NPT) and the ASCO 8344 (1/2″ to 1″ NPT) series of solenoid valves.

The 1/4″ and 3/8″ versions are direct acting in order to provide maximum flow for their size and the 1/2″ to 1″ size have poppet construction for high flows and tight shutoff.

Once tripped, the ASCO 047 can only be manually reset to automatic operation.

ASCO 047 Solenoid Valves – Product Features

Further features of the ASCO 047 include:

  • Electrically Tripped (trips when energized), No Voltage Release (trips when de-energized), or Free Handle constructions
  • Intrinsically Safe constructions are available

ASCO 047 Solenoid Valves – Product Construction

BodyBrass
Stem303 Stainless Steel
Springs302 Stainless Steel
Pilot Seat CartridgeCA (when listed)
Disc, Diaphragm, SeatPTFE, FKM, or NBR (as listed)

ASCO 047 Solenoid Valves – Operation Alternatives

Electrically tripped – The valves move to the latched position when the solenoid is de-energised and trips when receiving a continuous or momentary (at least 0.3 seconds) electrical signal. When tripped, the ASCO 308 valve can be manually cycled open/closed, however they must be reset when the solenoid has been de-energised again.

No voltage release – Valves moved to the latched position when the solenoid has been energised trips when de-energised. When the valve has been tripped they can be manually cycled open/closed, however must be reset once the solenoid has been energised again.

Free handle – The valve is moved to the latch position when the solenoid is energised and trips when it becomes de-energised. They can not be manually cycled open/closed when de-energised. The valves can be manually cycled open/closed or reset only when energised.

ASCO SOLENOID VALVES – HAZARDOUS AREA LOCATIONS, safety & standards

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

Data Sheets