Design Features
  • Brass body
  • Stainless Steel and Brass internal components
  • Long life silicon plug seal
  • Corrosion resistant Ogontz thermal actuator
  • Maximum operating pressure of 150 psig (10.3 bar)
  • Easy installation
  • Reliable, unattended operation
  • Minimal maintenance
  • Provides effective control
  • Various appplications in freeze protection and temperature control

Unit of Measure


Thread Type


Thread Size

N/A 3/4 in

Optional Outlet Thread

N/A 3/8 BSP 3/8 NPT

Valve Type

N/A MF Temperature Control Valve

Full Open Set Point Temperature Range

N/A 35 ºF

Maximum Operating Pressure

N/A 150 psig10.3 bar

Maximum Operating Temperature

N/A 250 ºF121 ºC

Flow Coefficient (Cv)

N/A 0.4

Body Material

N/A Brass

Net Weight

N/A 5.3 oz150 g

The Ogontz Guarantee

N/A We will repair or replace on a no-charge basis FOB Willow Grove, PA, any valve returned to us within 18 months, if found to be defective in material or workmanship.

Valve Operation

N/A Example: Model MF35 starts to open when water temperature is39°F[3.9°C]. Valve is fully open at 35°F [1.7°C]. As water temperature raises, valve starts to close, and is fully closed by 45°F [7.2°C].