ASCO EV 8317 Ex Proof ATEX Solenoid Valve (Explosion Proof Encapsulated Coils)

T&D – ASCO Numatics Authorised Distribution Channel. Process and flow control of air, gas, water, oil and steam using advanced solenoid valve technology.
ASCO EV 8317 Explosion Proof Encapsulated Coils
ASCO EV 8317 explosion proof encapsulated coils are part of the hazardous area solenoid valve range suitable for use in ATEX Zone 1 and Zone 2 hazardous area applications.
The ASCO valve is designed for quick venting to 0 psi through the exhaust orfice and has resilient seated poppets for tight shutoff.
ASCO EV 8317 air is exhausted to quickly shift control valves.

ASCO EV 8317 Hazardous Area Solenoid Valve With Manual Operator
The solenoid valves are suitable for a wide range of industry applications and have flexible mounting options.
The nominal ambient working temperature ranges for the ASCO EV 8317 hazardous area solenoid valve are AC: 32˚F to 125˚F (0˚C to 52˚C) and DC: 32˚F to 104˚F (0˚C to 40˚C).
ASCO EV 8317
Solenoid Valve HAZARDOUS area Certifications
CSA UL FM ATEX IECEX
ASCO Valve Series | Type | Pipe Size (in) | Max. Cv (Kv) |
![]() CSA |
![]() UL FM |
![]() ATEX IECEx |
ASCO EV 8317 | 3-Way Valve | 1/4 | 0.73 (0.63) | ✓ | ✓ | ✓ |
Contact T&D for copy hazardous area certificates – for complete technical specification and certification refer to the ASCO EV 8317 download opposite.
Hazardous Area Classification ATEX

ATEX IECEx Certified Valves
ATEX II 2G Ex d mb IIC T
ATEX Gb II 2D Ex mb IIIC T Db IP67
Hazardous Area Classification IECEx
IECEx Ex d mb IIC T
IECEx Gb Ex mb IIIC T Db
ASCO EV 8317 Hazardous Area Solenoid Valve Construction
Valve Parts In Contact With Fluid | ||
Solenoid Valve Body | Brass | 304 Stainless Steel |
Seals and Discs | NBR (PA upper disc for 8317 Series) | |
Diaphragm | CR (8317 Series only) | |
Core Tube | 305 Stainless Steel | |
Core and Plugnut | 430F Stainless Steel | |
Core Springs | 302 Stainless Steel and 17-7 PH Stainless Steel | |
Pilot Seat Cartridge and Disc-Holder | CA (8321 Series only) | |
Shading Coil | Copper | Silver |
Piston | Brass and 303 Stainless Steel (8321 only) |

ASCO Solenoid Valves, Coils & Enclosures With IECEX & ATEX Hazardous Area Approvals
HAZARDOUS AREA VALVES
ASCO solenoid valves provide flow control in hazardous area industries including oil, gas, petrochem, mining, power and process industries to ATEX (European), IECEx (International), CSA (North America), UL (United States & Canada), NEPSI (China), INMETRO (Brazil) and TR CU (Russia) approvals.
➡ Did you know? T&D are Trained users of Thermon CompuTrace software to enable the design of steam and electric trace heating systems for frost protection and process temperature maintenance of pipework in industrial and hazardous area locations.
➡ Read Blog: ATEX Solenoid Valves – ASCO Valves for International Hazardous Area Installations