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High Capacity Thermostatic Radiator Valves with T104 Actuators provide control of temperature by modulating the flow of hot water or steam through free-standing radiators, convectors and other heating units with high capacity requirements.

Valves may be used with T104 Thermostatic Actuators.

  • Designed with the higher capacity normally required by North American heating systems.
  • Valve seat disc, which is made of resilient material (EPDM), ensures tight shutoff on steam or hot water systems.
  • Nickel-plated bronze casted body with working parts in cartridge insert for ease of service.
  • All working parts are replaceable using service tool (MT110C1011) while valve remains in service, in-line, under pressure.
  • Valves normally open without control mounted.
  • Meet ASHRAE Standard 102-1989.
Product Specifications
  • Application: Precise and automatic control of room temperature in two-pipe systems by modulating the flow of hot water or steam through high capacity heating units when used with T104 Thermostatic Actuators.
  • Temperature Range (F): 248 F Maximum
  • Temperature Range (C): 120 C Maximum
  • Used With: T104
  • Connection Type: Threaded
  • Body Pattern: Horizontal Angle
  • Pressure Ratings (psi): Hot Water--150 psi maximum; Steam--15 psi maximum
  • Pressure Ratings (kPa): Hot Water--1034 kPa maximum; Steam--103 kPa
  • Pipe Size (inch): 3/4 in.
  • Pipe Size (DN): DN20
  • Maximum Differential Pressure Ratings (Close-off) (psi): 17 psi maximum
  • Capacity: high
  • Capacity (Cv): 5.8 Cv
  • Capacity (Btu/hr-steam): 162,000 Btu/hr
  • Materials (Body): Bronze
Hide Description
Manuals (1)

Hot Water

2 Pipe Steam



Body Pattern:

Side Mount Angle

Max Pressure (PSI):

150 PSI (Hot Water)

15 psi (Steam)





Flow Capacity (Cv):



162000 BTU/hr (steam)

Capacity (BTU):



Normally Open

Temperature Range (F):

248°F Max


17 psi

Connection Type:


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