Self-acting temperature regulators TR25/R (Reverse action for cooling systems)

The TR25/R valves series are designed for temperature control in cooling systems where the valve opens with temperature rise. They are single seated, unbalanced and intended to be coupled with T series thermostat models T.205 and T.405. The liquid filling the thermostat expands when the temperature of the fluid being cooled rises, opening the valve. 

  • Easily adjustable temperature range. 
  • Proportional temperature control. 
  • Single seated, two way, reverse acting valve. 
  • Built-in strainer. 
  • Narrow thermostat neutral zone (1,5 to 2,5 ºC). 
  • No special tools required for servicing. 
  • Stuffing box is an integral part of the thermostatic element, allowing easy and simple maintenance of the valve. 
  • PK sensor pocket. 
  • Diffferent capillary lenghts. 
  • Other thermostats on request.

Water, air ad other gases and liquids compatible with the construction. 

TR25S/R – carbon steel. 

TR25i/R – stainless steel. 

AVAILABLE THERMOSTATS 

T.205 – 400 N (max. closing force). 

T.405 – 500 N (max. closing force). 

1/2" to 1"; DN 15 to DN 25.

Female threaded ISO 7 Rp. 

Flanged EN 1092-1 PN 40. 

T.205: 0 to 60 ºC, 30 to 90 ºC and 60 to 120 ºC. 

T.405: 0 to 120 ºC and 40 to 160 ºC. 

Horizontal installation with the thermostat in the vertical position, in order to reduce wear. 

A “Y” strainer should be installed upstream of the valve. 

See IMI – Installation and maintenance instructions.