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macon controls Since 1975, Macon Controls has been a respected national supplier of radiator valves and regulating sensors to the heating industry. Their OPSV (One-Pipe Steam Valve) assembly consists of the reliable ENT B26000 direct mounting thermostat. The thermostatic head contains a temperature sensitive wax which expands and contracts on a rise and fall of temperature in the sensed area.

Features of the OPSV include:

  • Compact dimensions
  • Nickel-plated, forged brass valve
  • Thermostat may be locked at or limited to any desired temperature (or range of)
  • Actuators changes without system shutdown
  • Valve may be installed by dropping
  • Individual room control for greater comfort
  • Replaceable insert
  • Stainless steel spindle
  • Fuel savings up to 30%
  • Non-electric - fully automatic
  • Prevents over and under firing
  • Reliable
  • Vent and vacuum breaker included
  • The OPSV help to minimize large temparature swings inherent in one pipe steam systems

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