Thermostatic three-way valve body
without presetting, with automatic bypass control
The thermostatic three-way-valve bodies are used in two-pipe pump heating systems. For one-pipe pump heating systems a retrofitting thermostatic insert is available. When almost all valves are closed at the same time, additional pressures build up in the heating system. If the three-way valve intercepts the radiator flow, the bypass for the return flow is fully opened. Additional pressures are avoided and the pressure is kept almost constant. The bypass can be connected with the corresponding bypass T-piece on the radiator return.
Product branding
Features and Benefits
To avoid additional differential pressure
Due to automatic bypass control
With bypass T-piece
For easy connection to the return
Double O-ring seal
For durable and maintenance free operation
Valve body in gunmetal
Corrosion-resistant and safe
Applications
Two-pipe or one-pipe pump heating systems.
Functions
Avoids additional differential pressure
Control
Ensuring minimum amounts of water circulation
Shut-off
Size (DN)
15
Pressure class [PN]
PN 10
Temperature
Max. working temperature: 120°C, with protection cap or actuator 100°C.
Min. working temperature: -10°C
Connection to thermostatic head and actuator
IMI Heimeier M30x1,5
Pipe connection
The valve body and the bypass T-piece are designed for connection to threaded pipe, or in conjunction with compression fittings, to copper precision steel or multi-layer pipe.
Material
Valve body: corrosion resistant Gunmetal
Bypass T-piece: Brass
O-rings: EPDM rubber
Valve disc: EPDM rubber
Return spring: Stainless steel
Valve insert: Brass
Spindle: Niro-steel spindle with double O-ring sealing. The outer O-ring can be replaced under pressure.
Surface treatment
Valve body and fittings are nickel-plated.
The table below assists you in finding the relevant product based on its variant. For more details, please download the datasheet above.
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