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Thermostatic radiator valve bodies (TRV bodies) are fitted on the supply or return of radiators or heat exchangers...

Product Description

Thermostatic radiator valve bodies (TRV bodies) are fitted on the supply or return of radiators or heat exchangers. Together with a radiator thermostat, for example the Thera- 4, they control the room temperature by regulating the flow of hot water into the radiator or heat exchanger. The temperature of different rooms is controlled individually and energy is saved. TRV bodies of this type have quiet operation and are fitted to the supply of radiators on two-pipe systems with very low flow rates. The flow rate can be preset according to system requirements. The valve insert can be replaced while the system is running and without draining using the service tool (see Accessories). TRV bodies of this type are suitable for:

  • Honeywell Home radiator thermostats with M30 x 1.5 connection
  • Certain Honeywell Home MT4 actuators
  • Honeywell Hometronic HR80 and Roomtronic HR40 actuators

For water-based heating systems. 

Technical Properties

Media water or water-glycol mixture according to VDI 2035
DN size 15 mm
Port connection internal and external threads
Body-head connection M30 x 1,5
Heat exchanger connection 1/2 inch
Connection diameter 1/2 inch
Nominal pressure PN10
Max. delta P 2 bar
Media temp. 2 ... 130 oC
Kvs value 0,35
Pre-settable yes
Body pattern angle to DIN
Materials Valve housing made of nickel-plated hot-forged brass. Valve insert made of brass with EPDM O-rings and soft seals and stainless steel spindel. Protection cap made of brown plastic. Union-nut and tailpiece made of nickel-plated brass
  • Full metal version (i.e. to be used for heating transfer stations)
  • Presettable fine-adjustment valve disc
  • Tamper-proof presetting, visible when radiator thermostat is removed
  • For heating systems with very low flow rates
  • Quiet operation
  • Bodies with dimensions according to EN215, Appendix A, Series D
  • AT-Concept valve housing and insert
  • Valve insert can be replaced while system is operating and without draining the system
  • Valve opening spring is not in the water
  • Standard M30 x 1.5 thermostat connection
  • Supplied with brown protection cap, imprinted FV for clear identification
Place in installation supply
Closing dimension 11,5 mm
Colour of protection cap brown
Stroke 2,5 mm
Additional Descriptions Suitable connections see 'Connections for TRV Bodies'.