Types EZH (Spring-to-Close) and EZHSO (Spring-to-Open) regulators are accurate pilot-operated, pressure balanced, soft-seated regulators. They are designed for use in high pressure natural gas transmission/city gate stations, large capacity distribution systems, and power plant feeds. They provide smooth, reliable operation, tight shutoff and long life.

Available Configurations

Type EZH (Spring-to-Close):  Pilot-operated pressure reducing regulator for low to high outlet presure.

Type EZHSO (Spring-to-Open): Pilot-operated pressure reducing regulator for low to high outlet pressure.

Type EZHOSX: Type EZH with a Type OS2 slam-shut device for overpressure (OPSO) or overpressure and underpressure (OPSO/UPSO) protection.

Type EZHSO-OSX: Type EZHSO with a Type OS2 slam-shut device for overpressure (OPSO) or overpressure and underpressure (OPSO/UPSO) protection.

• Features
• Body Size and End Connection Styles
• Pressure Registration
• Maximum Allowable Pressures
• Outlet Pressure Ranges
• Temperature Capabilities
• Approximate Weights
• Additional Technical Data

Features

• 1500 psig (103 bar) Inlet/Outlet Rating
• Common Body Platform
• Bubble Tight Shutoff
• Absolutely No Atmospheric Bleed
• Integral Slam-Shut Configurations Available
• Full Usable Capacity
• In-line Maintenance
• Long Life in Severe Service Applications
• Precise Pressure Control
• High Turn Down Capability
• NPS 1 through 4 (DN 25 through 100) Body Sizes Available
• Spring-to-Close and Spring-to-Open Versions
• Optional Whisper Trim® Cage Noise Abatement (Up to 8dBA)
• Integral Slam-Shut for Overpressure and Underpressure Protection

Body Size and End Connection Styles

1 and 2-inch (DN 25 - 50)
Main Valve Body Material: LCC or WCC Steel
End Connection Styles:  NPT or SWE, Class 150 RF, Class 300 RF, Class 600 RF or BWE

3-inch (DN 80)
Main Valve Body Material: LCC or WCC Steel
End Connection Styles: Class 150 RF, Class 300 RF, Class 600 RF or BWE

4-inch (DN 100)
Main Valve Body Material: LCC or WCC Steel
End Connection Styles: Class 150 RF, Class 300 RF, Class 600 RF or BWE
 

Pressure Registration

External

Maximum Allowable Pressures

Inlet Pressure:  1500 psig (103 bar)
Outlet (Casing) Pressure:  1500 psig (103 bar)
Emergency Casing Pressure:  1500 psig (103 bar)
Operating Differential Pressure:  1500 psid (103 bar d)

Outlet Pressure Ranges

7.3 to 1160 psig (0,5 to 80 bar) in ten ranges

Temperature Capabilities

-20° to 180°F (-29° to 82°C)⁽²⁾

⁽²⁾Types PRX and SA/2 fluorocarbon (FKM) elastomer are limited to 0°F (-18°C) 

Approximate Weights

Additional Technical Data