ASCO SV311 Solenoid Valves – 2 Way NC NO Gas Shutoff Valve

ASCO SV311 Solenoid Valves. T&D are an ASCO Numatics Authorised Distribution Channel.
ASCO SV311 solenoid valves are part of the ASCO Red Hat range of valves.
- Manufacturer : ASCO
- Product : Solenoid Valve
- Type : Direct Acting
- Series : ASCO SV311
- Valve Body : Aluminium
- Valve Voltage : 110 AC;120 AC
- Flow Control Media : Aggressive liquids, gases, air, inert gas, ammonia, cryogenic, fuel oil, hot water, light oil, liquid propane gas, natural gas, oxygen, steam, vacuum, water
- Valve Function : 2 way – 2/2 Normally Closed, 2 way – 2/2 Normally Open
NC = Normally Closed Valve
NO = Normally Open Valve
ASCO SV311 Solenoid Valves – Features
- 2-way normally closed operation
- For gas pilot control of commercial and industrial gas burners
- Direct lift with resilient soft seating for tight shutoff
- Valves provided with 1/8″ NPT downstream pipe tap with plug for routine testing
- Suitable for ambient temperatures up to 175˚F
ASCO SV311 Solenoid Valves – Product specifications
Body | Aluminium |
Seals and disc | NBR |
Core tube | 305 stainless steel |
Core and plugnut | 430F stainless steel |
Springs | 17-7PH |
Shading Coil | Copper |
Pipe plug | Zinc-plated steel |
For complete specification, dimensional drawings and ordering references for ASC0 SV311 valves please refer to the catalogue downloads.
Hazardous Area LOCATIONS Certification
ASCO SV311 valves are ATEX & IECEx certified – available with explosion-proof solenoid enclosure and also UL listed for fire protection systems. CSA certified solenoid valve. T&D distribute the complete range of hazardous area solenoid valves manufactured by ASCO.

ASCO Hazardous Area Solenoid Valves ATEX • CSA • FM • UL • IECEx • NEPSI • INMETRO • TR CU
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 – hazardous 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.