HERZ CALIS-TS-RD is a thermostatically controlled three-way diverting valve designed for heating and cooling systems with nearly constant volume flows. The valve provides up to 100% flow distribution between the straight-through port and the branch connection.

When the thermostatic valve is open, the straight-through port is open. When the valve is closed by a thermostat or thermal actuator, the branch opens and the straight-through port closes.

CALIS-TS-RD can be used as a thermostatic control valve for maintaining room temperature or average temperature in closed hot and chilled-water circuits.

The valve body is made of brass, the spindle is stainless steel and the seals are EPDM. The thermostatic head or actuator connection is M28 x 1.5.

Pipe connections are male threaded and flat-sealing. Pipe connection fittings must be ordered separately.

Technical information:

Manufacturer: HERZ

Series: CALIS-TS-RD

Product type: three-way diverting valve

Function: up to 100% flow distribution

Application: heating and cooling systems

Control: thermostatic head or thermal actuator

Thermostat / actuator connection: M28 x 1.5

Valve body material: brass CC754S-GM

Spindle material: stainless steel

Seals: EPDM

Pipe connections: male thread, flat-sealing

Minimum operating temperature: 2 °C

Maximum operating temperature: 120 °C

Maximum operating pressure DN15–DN20: 10 bar

Maximum operating pressure DN25–DN32: 16 bar

Maximum differential pressure for thermostatic operation: 0.2 bar

Medium: heating water according to ÖNORM H 5195 or VDI 2035

Permitted ethylene glycol concentration: 25–50%

Models:

1776138 / 1 7761 38
DN: DN15
Valve size: 1/2"
External connection thread R: 3/4"
Kvs: 3.00 m³/h
Maximum Δp: 2.00 bar
A: 30 mm
B: 30 mm
C: 22 mm

1776139 / 1 7761 39
DN: DN20
Valve size: 3/4"
External connection thread R: 1"
Kvs: 3.00 m³/h
Maximum Δp: 2.00 bar
A: 37.5 mm
B: 34 mm
C: 22 mm

1776140 / 1 7761 40
DN: DN25
Valve size: 1"
External connection thread R: 1 1/4"
Kvs: 6.27 m³/h
Maximum Δp: 0.73 bar
A: 45 mm
B: 43 mm
C: 40.5 mm

1776141 / 1 7761 41
DN: DN32
Valve size: 1 1/4"
External connection thread R: 1 1/2"
Kvs: 6.44 m³/h
Maximum Δp: 0.73 bar
A: 50 mm
B: 43 mm
C: 40.5 mm

Important: pipe connection fittings are not included with the valve and must be ordered separately.