Design Features
  • Thermal actuator controls flow of steam as needed— eliminates danger of overheating temperature sensitive instruments or analyzers
  • Provides effective freeze protection
  • No explosion proof housings or other precautions needed
  • Pre-calibrated actuators are interchangeable for quick easy change of enclosure temperature
  • Direct acting (no pilot valve)
  • High repeatability (no control point drift)
  • Valve port opens gradually preventing system shock
  • Range of temperature control points from 35°F to 240°F
  • Maintains enclosure temperature to within ± 3°F of control point over wide range of ambient temperatures and steam supply pressures
  • 100% factory tested
Note: Valve will slowly actuate within a 15°F differential of factory calibrated specified stepoint.

Unit of Measure


NPT Inlet Thread Size

N/A 1/2 in

NPT Outlet Thread Size

N/A 1/4 in

Valve Type

N/A IEV Instrument Enclosure Steam Control Valve

Maximum Operating Pressure

N/A 200 psig

Maximum Operating Temperature

N/A 450 ºF
Maximum Flow Coefficient (Cv)1 N/A 0.2

Valve Action

N/A Direct

Body Material

N/A 303 Stainless Steel

Maximum Capacity of Saturated Steam at 100 psig Inlet Pressure

N/A 42 lb/hr

Control Point Temperature Range

N/A 35 to 240 ºF

Dimensional Drawing

IEV Schematic Figure 1


N/A 1-1/4 lb


N/A Actuator to be mounted a minimum of 2” from heating coil. Standard o-ring Kalrez™ To be used in saturated steam systems only Valve will slowly actuate within a 15°F differential of factory calibrated specified setpoint.

The Ogontz Guarantee

N/A We will repair or replace on a no-charge basis, F.O.B. Willow Grove, PA, any Ogontz product returned to us within 18 months, if found to be defective in material or workmanship.
  • 1 ±10% in Tolerance