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