Key Parameters & Specifications
The following parameters are typical for the EZH and EZHSO series.
Category Parameter Name Description & Typical Values
General Specifications Actuator Type Electric, Spring-Return (EZH) or Electric, Non-Spring Return (EZHSO)
Valve Style Globe Valve or Angle Valve body
Valve Size 1/2" to 2" (DN 15 to DN 50) - Common for HVAC applications.
End Connections Screwed (NPT) - Standard. Flanged or other connections may be available.
Electrical Data Input Signal & Power 20 to 135 VAC, 50/60 Hz; 2-wire system. The voltage level modulates between a minimum (e.g., ~30V = 3 psi = closed) and maximum (135V = 15 psi = open) to command the position.
Power Consumption Typically 5-6 VA (running).
Valve Body Body Materials Bronze or Cast Iron - Standard. Ductile Iron and Stainless Steel may be options.
Pressure Rating Varies by body material and size. e.g., Bronze: 200-400 psi WOG.
Temperature Limits Standard: -20°F to 250°F (-29°C to 121°C). High-Temp: Up to 350°F (177°C) with special packing.
Trim & Flow Flow Characteristic Equal Percentage - Standard, ideal for HVAC water systems with varying pressure drops.
Leakage Class Class IV (with soft seat) - Standard, providing tight shut-off.
Performance Stroke Time Typically 30 to 60 seconds for full travel (depending on valve size).
Fail-Safe Action (EZH only) Fail-Closed or Fail-Open - Field-reversible.
Enclosure Rating NEMA 1 (Standard), NEMA 4X (Weatherproof) - Optional.
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