The EH50 Series

Features:

The full port EH50 offers a wide range of solutions for your application needs, and is best used to control the flow of high pressure air, water, natural gas, hydrogen, nitrogen and other gases or light liquids compatible with materials of construction. This pilot operated valve is a great choice for differential pressures as high as 10,000 PSI. The valve comes in a ½” NPT connection size and requires a 100 PSIG minimum pressure differential between inlet and outlet for operation. The EH50 offers many of the benefits of our EH40, but with the available option of an integrated check valve. The EH50 is an ideal choice for CNG equipment and applications, whether your system utilizes a single-line buffer or a 3-bank cascade filling scheme. The valve also features a cartridge that can be easily removed for maintenance. The Normally Closed EH50 valves must be mounted upright and vertical, while the Normally Open EH50 valves are universal mount. Filters are recommended for all applications.

Possible Media: (click each icon to learn more)

General Gases
& Light Liquids
Hydrocarbon
Fuels
Flammable
Gases
Hydrogen
Oxygen
Corrosives
Sea & Salt
Water
Viscous
Liquids
Steam
Cryogenics

EH50 Product Manual
ATEX Approved Coils Now Available
Download EH50 Catalog Page here

How does this compare to other Clark Cooper Valves?
 Normally Closed Assembly Video
 Normally Open Assembly Video

The EH50 Series

Construction Valve Body: 7075-T6 Anodized Aluminum* / 316 SS Piston: PEEK O Ring (Standard): Buna-N (-50° to 225°F) O Ring (Optional): Viton (0° to 400°F) Backing Rings: Buna-N* / Viton / PTFE (cryo to 400°F) Piston Rings / Seal: 302 SS / PTFE Cartridge: 316 SS & 430 SS Pilot / Seal: 303 SS / PTFE Spring: 302 SS Plunger: 430 SS Bonnet Retainer: 430 SS Cartridge Gasket: Nylon Optional Check Valve: 304 SS / PEEK Fluid Temperature: -423 ° to +400 °F *Standard material

Inlet/Outlet Electrical Ship Weight (Aluminum Body) Ship Weight (316 SS Body) Reference Dimensions (inches) A B C D E EH50-08 Normally Closed ½" NPT ½" NPT Conduit 4.25 lbs. 9.75 lbs. 2.0 6.6 2.5 3.0 ø 3.00 EH50-08 Normally Open ½" NPT ½" NPT Conduit 4.50 lbs. 10.0 lbs. 2.0 7.3 2.5 3.0 ø 3.00

The EH50 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:   Normally Closed Normally Open AC Voltage (Standard 10 W): 7,500 7,500 AC Voltage (Higher Wattage 22 W): 10,000 - DC Voltage (Standard 10 W): 3,500 2,500 DC Voltage (Higher Wattage 22 W): 5,000 6,300 Minimum Pressure Differential: 100 100 Cv: 4.5 4.5

* Standard Sealing is Class 2, Per ANSI/FCI 92-2-2001
** For Oils and Hydraulic Fluids with viscosities greater than water, the maximum differential pressure is the value in the table divided by 2.

The EH50 Series

Possible EH50 Options:
Click each icon to learn more

Integrated Check Valve
72" Lead Length
Din Connector
Screw Terminal
¼ Tab (spade)
General Service
Hydrogen Service
Normally Open
Oxygen Clean
Stainless Steel Valve Body
Tube Connector
Viton O-Rings
22 W Coil
Universal Mount
Normally Open ONLY
Class V Leakage Testing
SAE Port
NEMA 4X
Stainless Steel Tags

The following are standard on the EH50:

Explosion Proof

Options for our other valves include:

Cryogenic Cleaning
ETL Listed
Single Switch

The EH50 Series

Send me a formal quote – Download Model Breakdown 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.