High Capacity Thermostatic Radiator Valves provide precise and automatic control of room temperature in two-pipe systems by modulating the flow of hot water or steam through free-standing radiators, convectors and other heating units with high capacity requirements.
  • Continually monitors and adjusts room temperature for consistent comfort and relief from under-heating and overheating.
  • Designed with the higher capacity normally required by U.S.A. 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.
  • Controls include sensor, setpoint dial and valve actuator; components may be integral or connected by capillary tubes.
  • Require no electrical connections.
  • All working parts are replaceable using service tool (MT100C1011) while valve remains in service, in-line, under pressure.
  • Valves normally open without control mounted.
  • Valves may also be used with MV110 Electric Zone Valve Actuator.
  • Meet ASHRAE Standard 102-1989.
  • Description: Horizontal Angle Pattern 1/2 in. Valve for High Capacity Radiator
  • Application Type: 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
  • Pipe Size (inch): 1/2 in.
  • Pipe Size (DN): DN15
  • Body Pattern: Horizontal Angle
  • Capacity: high
  • Capacity (Cv): 4.6 Cv
  • Capacity (Btu/hr-steam): 127,000 Btu/hr
  • Connection Type: Threaded
  • Pressure Ratings (Hot Water (psi)): 150 psi maximum
  • Pressure Ratings (Hot Water (kPa)): 1034 kPa maximum
  • Pressure Ratings (Steam (psi)): 15 psi maximum
  • Pressure Ratings (Steam (kPa)): 103 kPa
  • Differential Pressure Ratings (psi): 17 psi maximum
  • Temperature Ratings (F): 248 F Maximum
  • Temperature Ratings (C): 120 C Maximum
  • Dimensions (in.): 1 in. x 2 1/4 in.
  • Dimensions (mm): 25 mm x 57 mm
  • Materials (Body): Bronze
  • Used With: T104
Read more
Manuals (1)
2 Pipe Steam
Hot Water
Body Pattern:
Side Mount Angle
17 psi
Max Pressure (PSI):
150 PSI (Hot Water)
15 psi (Steam)
Flow Capacity (Cv):
127000 BTU/hr (steam)
Capacity (BTU):
Normally Open
Temperature Range (F):
248°F Max
Connection Type:
FPT x MPT Union

Replacement Parts (1)

Heating Questions?
Speak with a real person who will go out of their way to help!
Monday – Thursday
8am–5:45pm EST
9am–4:45pm EST

4 Product Reviews

Product Q&A