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EH40 - General Service

Features

Clark Cooper Valve EH40 Photo

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 a 50-100 PSIG minimum pressure differential between inlet and outlet for operation. The valve's simple design with few moving components have made the 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.

Possible Media

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Clark Cooper EH40 Valve General Gases and Liquids Yes
General Gases
and Liquids Clark Cooper EH50 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

Electrical

Coil Options and Ratings

Standard Connection: 1/2" Conduits, 18" Leads
Optional Connections: DIN (43650A / ISO 4400), Tab (spade), Screw terminal
Duty: Continuous
Enclosure: NEMA 3, 3S, 4, 4X, 7, 9
Insulation: Class "F" (10 W) & Class "H" (22 W)

General Service

Dimensions & Construction

Clark Cooper Valve EH40 Normally Closed
  Ship Weight (lbs.) Reference Dimensions (inches)
A B C D E
EH40-04 2.85 2.0 4.1 2.1 0.9 ø 2.20
EH40-08 6.05 2.0 4.7 2.2 1.3 ø 3.00
EH40 Diagram

Wetted Parts

Valve Body: 316 SS
Piston: PEEK®
Cartridge Seals: Buna-N
Piston Rings: 302 SS & PTFE
Bonnet Tube / Pole Piece: 316 SS / 430 SS
Pilot Assembly: 303 SS & PTFE
Return Spring: 302 SS
Plunger: 430 SS

Part Chart

Tube Connection PSI Port Cv Hz Watt Model Price
0.25 7/16 SAE 7.5 ksi 0.25 1.1 50/60 10 EH40B003 675
7.5 ksi DC 22 EH40B004 725
10 ksi 50/60 22 EH40B005 725
MPF 7.5 ksi 0.25 1.1 50/60 10 EH40B006 675
7.5 ksi DC 22 EH40B007 725
10 ksi 50/60 22 EH40B008 725
NPT 7.5 ksi 0.25 1.1 50/60 10 EH40B009 675
7.5 ksi DC 22 EH40B010 725
10 ksi 50/60 22 EH40B011 725
0.375 9/16 SAE 7.5 ksi 0.375 2.5 50/60 10 EH40B012 725
7.5 ksi DC 22 EH40B013 775
10 ksi 50/60 22 EH40B014 775
MPF 7.5 ksi 0.375 2.5 50/60 10 EH40B015 725
7.5 ksi DC 22 EH40B016 775
10 ksi 50/60 22 EH40B017 775
NPT 7.5 ksi 0.375 2.5 50/60 10 EH40B018 725
7.5 ksi DC 22 EH40B019 775
10 ksi 50/60 22 EH40B020 775
0.5 3/4 SAE 7.5 ksi 0.5 5 50/60 10 EH40B021 745
7.5 ksi DC 22 EH40B022 795
10 ksi 50/60 22 EH40B023 795
MPF 7.5 ksi 0.5 5 50/60 10 EH40B024 745
7.5 ksi DC 22 EH40B025 795
10 ksi 50/60 22 EH40B026 795
NPT 7.5 ksi 0.5 5 50/60 10 EH40B027 745
7.5 ksi DC 22 EH40B028 795
10 ksi 50/60 22 EH40B029 795

General Service

Dimensions & Construction

Clark Cooper Valve EH40 Normally Closed
  Ship Weight (lbs.) Reference Dimensions (inches)
A B C D E
EH40-04 2.0 4.8 2.1 0.9 0.9 ø 2.20
EH40-08 n/a n/a n/a n/a n/a n/a
Clark Cooper EH40 Valve Body: 316 SS
Piston: PEEK®
O Ring: Buna-N (-50° to 225°F)
Backing Rings: Buna-N
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

Part Chart

Tube Connection PSI Port Cv Hz Watt Model Price
0.25 7/16 SAE 7.5 ksi 0.25 1.1 50/60 10 EH40B030 725
7.5 ksi DC 22 EH40B031 775
10 ksi 50/60 22 EH40B032 775
MPF 7.5 ksi 0.25 1.1 50/60 10 EH40B033 725
7.5 ksi DC 22 EH40B034 775
10 ksi 50/60 22 EH40B035 775
NPT 7.5 ksi 0.25 1.1 50/60 10 EH40B036 725
7.5 ksi DC 22 EH40B037 775
10 ksi 50/60 22 EH40B038 775
0.375 9/16 SAE 7.5 ksi 0.375 2.5 50/60 10 EH40B039 775
7.5 ksi DC 22 EH40B040 825
10 ksi 50/60 22 EH40B041 825
MPF 7.5 ksi 0.375 2.5 50/60 10 EH40B042 775
7.5 ksi DC 22 EH40B043 825
10 ksi 50/60 22 EH40B044 825
NPT 7.5 ksi 0.375 2.5 50/60 10 EH40B045 775
7.5 ksi DC 22 EH40B046 825
10 ksi 50/60 22 EH40B047 825
0.5 3/4 SAE 7.5 ksi 0.5 5 50/60 10 EH40B048 795
7.5 ksi DC 22 EH40B049 845
10 ksi 50/60 22 EH40B050 845
MPF 7.5 ksi 0.5 5 50/60 10 EH40B051 795
7.5 ksi DC 22 EH40B052 845
10 ksi 50/60 22 EH40B053 845
NPT 7.5 ksi 0.5 5 50/60 10 EH40B054 795
7.5 ksi DC 22 EH40B055 845
10 ksi 50/60 22 EH40B056 845

General Service

Dimensions & Construction

Clark Cooper Valve EH40 Normally Closed
  Ship Weight (lbs.) Reference Dimensions (inches)
A B C D E
EH40-04 2.85 2.0 4.1 2.1 0.9 ø 2.20
EH40-08 6.05 2.0 4.7 2.2 1.3 ø 3.00
EH40 Diagram

Wetted Parts

Valve Body: 316 SS
Piston: PEEK®
Cartridge Seals: Buna-N
Piston Rings / Seal: 302 SS / PTFE
Bonnet Tube / Pole Piece: 316 SS / 430 SS
Pilot Assembly: 303 SS & PTFE
Return Spring: 302 SS
Plunger: 430 SS

Part Chart

Tube Connection PSI Port Cv Hz Watt Model Price
0.25 7/16 SAE 7.5 ksi 0.25 1.1 50/60 10 EH40B060 675
7.5 ksi DC 22 EH40B061 725
10 ksi 50/60 22 EH40B062 725
MPF 7.5 ksi 50/60 10 EH40B063 675
7.5 ksi DC 22 EH40B064 725
10 ksi 50/60 22 EH40B065 725
NPT 7.5 ksi 50/60 10 EH40B066 675
7.5 ksi DC 22 EH40B067 725
10 ksi 50/60 22 EH40B068 725
0.375 9/16 SAE 7.5 ksi 0.375 2.5 50/60 10 EH40B069 725
7.5 ksi DC 22 EH40B070 775
10 ksi 50/60 22 EH40B071 775
MPF 7.5 ksi 50/60 10 EH40B072 725
7.5 ksi DC 22 EH40B073 775
10 ksi 50/60 22 EH40B074 775
NPT 7.5 ksi 50/60 10 EH40B075 725
7.5 ksi DC 22 EH40B076 775
10 ksi 50/60 22 EH40B077 775
0.5 3/4 SAE 7.5 ksi 0.5 5 50/60 10 EH40B078 745
7.5 ksi DC 22 EH40B079 795
10 ksi 50/60 22 EH40B080 795
MPF 7.5 ksi 50/60 10 EH40B081 745
7.5 ksi DC 22 EH40B082 795
10 ksi 50/60 22 EH40B083 795
NPT 7.5 ksi 50/60 10 EH40B084 745
7.5 ksi DC 22 EH40B085 795
10 ksi 50/60 22 EH40B086 795

General Service

Dimensions & Construction

Clark Cooper Valve EH40 Normally Closed
  Ship Weight (lbs.) Reference Dimensions (inches)
A B C D E
EH40-04 2.0 4.8 2.1 0.9 0.9 ø 2.20
EH40-08 n/a n/a n/a n/a n/a n/a
Clark Cooper EH40 Valve Body: 316 SS
Piston: PEEK®
O Ring: Buna-N (-50° to 225°F)
Backing Rings: Buna-N
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

Part Chart

Tube Connection PSI Port Cv Hz Watt Model Price
0.25 7/16 SAE 7.5 ksi 0.25 1.1 50/60 10 EH40B090 725
7.5 ksi DC 22 EH40B091 775
10 ksi 50/60 22 EH40B092 775
MPF 7.5 ksi 50/60 10 EH40B093 725
7.5 ksi DC 22 EH40B094 775
10 ksi 50/60 22 EH40B095 775
NPT 7.5 ksi 50/60 10 EH40B096 725
7.5 ksi DC 22 EH40B097 775
10 ksi 50/60 22 EH40B098 775
0.375 9/16 SAE 7.5 ksi 0.375 2.5 50/60 10 EH40B099 775
7.5 ksi DC 22 EH40B100 825
10 ksi 50/60 22 EH40B101 825
MPF 7.5 ksi 50/60 10 EH40B102 775
7.5 ksi DC 22 EH40B103 825
10 ksi 50/60 22 EH40B104 825
NPT 7.5 ksi 50/60 10 EH40B105 775
7.5 ksi DC 22 EH40B106 825
10 ksi 50/60 22 EH40B107 825
0.5 3/4 SAE 7.5 ksi 0.5 5 50/60 10 EH40B108 795
7.5 ksi DC 22 EH40B109 845
10 ksi 50/60 22 EH40B110 845
MPF 7.5 ksi 50/60 10 EH40B111 795
7.5 ksi DC 22 EH40B112 845
10 ksi 50/60 22 EH40B113 845
NPT 7.5 ksi 50/60 10 EH40B114 795
7.5 ksi DC 22 EH40B115 845
10 ksi 50/60 22 EH40B116 845

How To Determine Your Model Number:

Start with the model number found above Next, chose your Voltage/Hz Add the following to the model number Add any optional Extras Add the following to the model number
24/60 A024 Hydrogen Service HY
120/60 A120 Oxy Clean OX
240/60 A240 Class 5 T5
12/DC D012 Straight Thread ST
24/DC D024 Tube Connector TC
120/DC D120

Examples:
EH40B024 - A240 - OXHY
EH40B005 - D024