ASCO 370 Solenoid Valves (Direct Acting) 3/2 NF, NO, U, 3 Port Valve – Hazardous Area Ex mb, Ex e mb
ASCO 370 hazardous area solenoid valves are direct acting/operating type valves suitable for hazardous areas installation with international classifications including ATEX, UL, CSA and other local approvals on request.
3/2 ” Way Solenoid Valve
NC – Normally Closed Valve
NO – Normally Open Valve
Via ASCO Numatics FASTSHIP and SAMEDAY Express Delivery Service we are able to deliver 2,000+ ASCO valves from stock direct to you.
T&D are an Authorised UK Distributor for ASCO Numatics, part of Emerson Industrial Automation.
ASCO 370 SOLENOID VALVES
- Compact and low weight valve enabling simply onsite installation
- AC/DC interchangeability of the solenoid valve head without need to disassemble ASCO valve
- ASCO 370 valve conforms to all relevant EC directives
Differential Pressure : 1 bar = 100 kPA
Maximum Viscosity : 40 cSt (mm²/s)
Response Time : 5-20 ms
Fluids | Temperature Range (TS) | Valve Seal Materials |
Air, Inert Gas, Water, Oil | -25°C to +80°C | NBR Nitrile, VMQ (silicone) |
ASCO 370 – valve FLUID CONTACT COMPATIBILITY
ASCO 370 Solenoid Valve | Brass Valve Body | Stainless Steel Valve Body |
Body | Brass | AISI 316L (1.4404) |
Internal Parts | Stainless Steel, plastic | Stainless Steel |
Springs | Stainless Steel | Stainless Steel |
Seat | Brass | Brass |
Discs | NBR (FPM or EPDM) | NBR (FPM or EPDM) |
O’rings | VMQ | VMQ |
Disc holder and core guide | POM | POM |
Shading coil | Copper | Copper |
ASCO 370 – valve ELECTRICAL CHARACTERISTICS
Valve Coil Insulation Class : F
Connector : Spade plug (cable 6-10mm diameter)
Connector Specification : ISO 4400/EN/ 175301-803, form A
Electrical Safety : IEC 335
Electrical Enclosure Protection : Moulded IP65 (EN 60529)
Standard Valve Voltages : DC (=) : 24V – 48V
Other Valve Voltages : AC (∼) : 24V – 48V – 115V – 230V / 50HZ
ASCO 374 – VALVE SPECIFICATIONS
Pipe Size | Orifice Size | Flow Coefficient kV | Operating Pressure Differential (Bar) | ASCO Solenoid Valve Catalogue Number | ||||||||
min. | max. (PS) | |||||||||||
2→1 | 2→1/1→3 | Air (*) | Water/Oil (*) | Brass Valve | Stainless Steel Valve | |||||||
(G*) | (mm) | (M3/h) | (l/min) | ~ | = | ~ | = | ~ | = | ~ | = | |
NC – Normally Closed Valve | ||||||||||||
1/4″ | 2 | 0.11 | 1.8 | 0 | 16 | 16 | 16 | 16 | ASCO SCE370A016 | ASCO SCE370A016 | ASCO SCE374A046 | ASCO SCE374A046 |
2.7 | 0.22 | 3.6 | 0 | 10 | 10 | 10 | 10 | ASCO SCE370A017 | ASCO SCE370A017 | ASCO SCE374A047 | ASCO SCE374A047 | |
3.8 | 0.32 | 5.3 | 0 | 5 | 5 | 5 | 5 | ASCO SCE370A018 | ASCO SCE370A018 | ASCO SCE374A048 | ASCO SCE374A048 | |
U – Universal | ||||||||||||
1/4″ | 2 | 0.11 | 1.8 | 0 | 8 | 8 | 8 | 8 | ASCO SCE370A026 | ASCO SCE374A027 | ASCO SCE374A057 | ASCO SCE374A057 |
2.7 | 0.2 | 3.3 | 0 | 5 | 5 | 5 | 5 | ASCO SCE370A027 | ASCO SCE374A028 | ASCO SCE374A058 | ASCO SCE374A057 | |
3.8 | 0.3 | 5 | 0 | 2 | 2 | 2 | 2 | ASCO SCE370A028 | ASCO SCE370A028 | ASCO SCE370A058 | ASCO SCE370A058 | |
NO – Normally Open Valve | ||||||||||||
1/4″ | 2 | 0.11 | 1.8 | 0 | 10 | 10 | 10 | 10 | ASCO SCE370A021 | ASCO SCE370A02 | ASCO SCE370A051 | ASCO SCE370A051 |
2.7 | 0.2 | 3.3 | 0 | 7 | 7 | 7 | 7 | ASCO SCE370A022 | ASCO SCE370A022 | ASCO SCE370A052 | ASCO SCE370A052 | |
3.8 | 0.3 | 5 | 0 | 3 | 3 | 3 | 3 | ASCO SCE370A023 | ASCO SCE370A023 | ASCO SCE370A053 | ASCO SCE370A053 |
ASCO 272 – VALVE OPTIONS
ASCO valves can be supplied with FPM (fluoroelastomer) and EPDM (ethylene-propylene) seals and discs. Use the appropriate optional suffix letter for identification Waterproof enclosure with embedded screw terminal coil according to protection class IP67, CEE-10 (prefix WP or WS).
Explosion proof enclosures for use in zones 1/21-2/22, categories 2-3 to ATEX Directive 94/9/EC.
Solenoid valves compliant with “UL”, “CSA” and other local approvals available on request.
Oxygen service with seals and disc in FPM, suffix N, example: SCE272A016 NV.
Other pipe connections are available on request.
Plug with visual indication and peak voltage suppression or with cable length of 2 metre.
ASCO SOLENOID VALVES – ATEX, IEC EX & NEMA hazardous area CERTIFIED

ASCO Solenoid Valves For Hazardous Area Oil, Gas & Petrochem Industries (ATEX & IECEx) – call T&D for sales, technical and specification support on all ASCO valves.
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Hazardous Area Certification
ATEX (Zone 1 Zone 2), IEC Ex, NEMA (Div 1 Div 2) & Explosion Protection
➡ Did you know? T&D supply ATEX hazardous area certified Analytic Gas Heated Hoses.
➡ Did you know? T&D distribute Hazardous Area Instrumentation Equipment as Approved Vendors to global oil and gas operators and their EPC’s.