Downloads

Technical Data

Valve Type: 2-way unidirectional full-port solenoid valve pilot-operated normally closed or normally open.
Connections: 1/4″ NPT 1/2″ NPT.
Pressure Range:
- Normally Closed AC Voltage (Standard): up to 517 bar.
- Normally Closed AC Voltage (Higher Wattage): up to 690 bar.
- Normally Closed DC Voltage (Standard): up to 241 bar (1/4″) or 248 bar (1/2″).
- Normally Closed DC Voltage (Higher Wattage): up to 690 bar (1/4″) or 496 bar (1/2″).
- Normally Open AC Voltage: up to 379 bar (1/4″) or 448 bar (1/2″).
- Normally Open DC Voltage (Higher Wattage): up to 379 bar (1/4″) or 427 bar (1/2″).
- Minimum Required Pressure Differential: 3.4 bar.
Temperature Range:
- 10 Watt Coils: Ambient -20°C to +65.6°C and maximum fluid temperature +121.1°C.
- 22 Watt Coils: Ambient -20°C to +50°C and maximum fluid temperature +65°C.
Response Time: Depends on application.
Media: General gases and light liquids fuels and light oils flammable gases hydrogen oxygen corrosives sea and salt water viscous liquids steam cryogenics.
Protection Class: NEMA 4X explosion-proof.
Certifications: ATEX IECEx CRN.
Materials:
- Valve Body: 316 SS.
- Piston: PEEK®.
- O-Rings (Standard): Buna-N (-50°C to +107°C).
- O-Rings (Optional): Viton (0°C to +204°C).
- Piston Rings: Buna or Viton.
- Cartridge: 316 SS and 430 SS.
- Pilot / Seal: 303 SS / PTFE.
- Spring: 302 SS.
- Plunger: 430 SS.
- Bonnet Retainer: 430 SS.
Coil Specifications:
- Power: 10 Watt or 22 Watt.
- AC Inrush: 1 amp @ 120V AC (10W) or 2.5 amp @ 120V AC (22W).
- AC Holding: 0.1 amp @ 120V AC (10W) or 0.2 amp @ 120V AC (22W).
- Insulation: Class F (10W) or Class H (22W).
- Duty: Continuous.
- Connection: 1/2” NPT 18” leads.
Flow Factor (Cv):
- 1/4″: 1.1.
- 1/2″: 4.5.
Standard Sealing: Class 2 per ANSI/FCI 92-2-2001.
Mounting: Normally Closed DC-powered EH40 valves must be mounted upright and vertical all other EH40 valves can be universally mounted.
Options and Add-Ons:
- 72″ Lead Length.
- DIN Connector.
- Screw Terminal.
- ¼ Tab (Spade).
- General Service.
- Hydrogen Service.
- Normally Open.
- Oxygen Clean.
- SAE Port.
- Tube Connector.
- Class V Leakage Testing.
- Stainless Steel Tags.
- Viton O-Rings.
- 22W Coil.

EH40 Series 2-Way Unidirectional Full-Port Solenoid Valve

The EH40 series is a 2-way unidirectional full-port solenoid valve ideal for a wide range of fluids and gases. This pilot-operated valve can be used to control media such as high-pressure air water natural gas hydrogen nitrogen and other gases or light liquids compatible with the materials of construction. Available in 1/4″ and 1/2″ sizes the EH40 features a cartridge design that simplifies maintenance requirements. The EH40 requires a minimum pressure differential of 3.4 bar between inlet and outlet for operation and is optimal for pressures from 3.4 to 690 bar. The ATEX and IECEx certified EH40 series is ideal for applications in hazardous environments.