The EH40 Series

Clark Cooper Valve EH40 Photo Clark Cooper Valve EH40 Section Rendering Clark Cooper Valve EH40 Rendering

Features:

The full port EH40 is great for a wide range of media. This pilot operated valve has become a popular and effective choice in the emerging Hydrogen Dispensing market. The EH40 is also an excellent valve to control the flow of high pressure air, water, hydrogen, nitrogen, and other gases or light liquids compatible with materials of construction. Available in both 1/4" and 1/2" sizes, the EH40 is the workhorse of our collection and offers a cartridge design that alleviates your demanding maintenance requirements. The EH40 requires 50 PSIG minimum pressure differential between inlet and outlet for operation. The valve's simple design has made it a great choice for inlet pressures as high as 10,000 PSIG. The Normally Closed EH40 valves must be mounted upright and vertical, while the Normally Open EH40 valves are universal mount. Filters are recommended for all applications.

Possible Media: (click each icon to learn more)

Clark Cooper EH40 Valve General Gases and Liquids Yes
General Gases
and Liquids
Clark Cooper EH40 Valve Light Oils Yes
Hydrocarbon
Fuels
Clark Cooper EH40 Valve Flammable Gases Yes
Flammable
Gases
Clark Cooper EH40 Valve Hydrogen Yes
Hydrogen
Clark Cooper EH40 Valve Oxygen Yes
Oxygen
Clark Cooper EH40 Valve Corrosives No
Corrosives
Clark Cooper EH40 Valve Sea and Salt Water No
Sea & Salt
Water
Clark Cooper EH40 Valve Viscous Liquids No
Viscous
Liquids
Clark Cooper EH40 Valve Steam Yes
Steam
Clark Cooper EH40 Valve Cryogenics Yes
Cryogenics

The EH40 has the following certification:
Clark Cooper EH40 CRN Clark Cooper ATEX Coils
EH40 Instruction Manual
ATEX Approved Coils Now Available
EH40 Install video See EH40 Assembly Video

How does this compare to other Clark Cooper Valves?

Download EH40 Catalog Page here

The EH40 Series

Construction

Valve Body: 316 SS
Piston: PEEK®
O Ring (Standard): Buna-N (-50° to 225°F)
O Ring (Optional): Viton (0° to 400°F)
Piston Rings: (EH40-04) 302 SS / PTFE
Piston Rings: (EH40-08) 302 SS / Buna
Cartridge: 316 SS & 430 SS
Pilot / Seal: 303 SS / PTFE
Spring: 302 SS
Plunger: 430 SS
Bonnet Retainer: 430 SS
*Viton Piston rings are option and available by request.
*Consult Sales for Fluid Temps exceeding 225°F.
Clark Cooper Valve EH40 Normally Closed Clark Cooper Valve EH40 Normally Open

  Standard Inlet/Outlet Electrical Ship Weight (lbs.) Reference Dimensions (inches)
A B C D E
EH40-04 Normally Closed ¼" NPT ½" NPT Conduit 2.85 2.0 4.1 2.1 0.9 ø 2.20
EH40-04 Normally Open ¼" NPT ½" NPT Conduit 3.10 2.0 4.8 2.1 0.9 ø 2.20
EH40-08 Normally Closed ½" NPT ½" NPT Conduit 6.05 2.0 4.7 2.2 1.3 ø 2.95
EH40-08 Normally Open ½" NPT ½" NPT Conduit 6.04 2.0 5.4 2.2 1.3 ø 2.95

The EH40 Series

Electrical (Coil)

  Standard Higher Wattage
Power: 10 Watts 22 Watts
AC Inrush: 1 amp @120V AC 2.5 amp @120V AC
AC Holding: 0.1 amp @ 120V AC 0.2 amp @ 120V AC
Insulation: Class "F" Class "H"
Duty: Continuous Continuous
Connection: 1/2" NPT, 18" Leads 1/2" NPT, 18" Leads
Enclosure
Explosion Proof (Standard): NEMA 3, 3S, 4, 4X, 7, 9 NEMA 3, 3S, 4, 4X, 7, 9
General Service: NEMA 1, 2, 3, 3S, 4, 4X NEMA 1, 2, 3, 3S, 4, 4X

Pressure

Maximum pressures shown are measured in PSIG


  Pipe Size
1/4" 1/2"
Normally Closed AC Voltage (Standard): 7,500 7,500
Normally Closed AC Voltage (Higher Wattage): 10,000 10,000
Normally Closed DC Voltage (Standard): 3,500 3,600
Normally Closed DC Voltage (Higher Wattage): 10,000 7,200
Normally Open AC Voltage: 5,500 8,500
Normally Open DC Voltage (Higher Wattage): 5,500 6,200
Minimum Pressure Differential: 50 50
Cv: 1.1 4.5

The EH40 Series

Possible EH40 Options:
Click each icon to learn more

Clark Cooper EH40 Valve 72 Lead Length yes
72" Lead Length
Clark Cooper EH40 Valve Din Connector yes
Din Connector
Clark Cooper EH40 Valve Screw Terminal yes
Screw Terminal
Clark Cooper EH40 Valve 1/4 Spade tab yes
¼ Tab (spade)
Clark Cooper EH40 Valve General Service yes
General Service
Clark Cooper EH40 Valve Hydrogen Service yes
Hydrogen Service
Clark Cooper EH40 Valve Normally Open yes
Normally Open
Clark Cooper EH40 Valve Oxygen Clean yes
Oxygen Clean
Clark Cooper EH40 Valve SAE Port yes
SAE Port
Clark Cooper EH40 Valve Tube Connector yes
Tube Connector
Clark Cooper EH40 Valve Universal Mount yes
Universal Mount
Clark Cooper EH40 Valve Class V Testing yes
Class V Leakage Testing
Clark Cooper EH40 Valve NEMA 4X yes
NEMA 4X
Clark Cooper EH40 Valve Stainless Steel Tags yes
Stainless Steel Tags
Clark Cooper EH40 Valve Viton O-Rings yes
Viton O-Rings
Clark Cooper EH40 Valve Higher Pressure yes
22 W Coil

The following are standard on the EH40:

Clark Cooper EH40 Valve Explosion Proof yes
Explosion Proof
Clark Cooper EH40 Valve Stainless Steel Valve Body yes
Stainless Steel Valve Body

Options for our other valves include:

Clark Cooper EH40 Valve Cryogenic Testing no
Cryogenic Cleaning
Clark Cooper EH40 Valve ETL Listed no
ETL Listed
Clark Cooper EH40 Valve Integrated Check Valve no
Integrated Check Valve
Clark Cooper EH40 Valve Single Switch no
Single Switch

The EH40 Series

Clark Cooper Valve EH40 Price Sheet
Download Price Sheet PDF here

Standard delivery time: 1 - 3 days
Additional options or alternate materials may cause longer delivery times. Delivery time is for less than 5 valves.