VRB 3, 25.00 m³/h, G 2 1/4


VRB 3 PN16 40/25 3-way seated ext. thr

Product details

Gross weight 3.596 Kg
Net weight 3.596 Kg
Volume 3.461 Liter
EAN 5702421559161


Application Heating and cooling
Application alternative VSP Chilled water
Cavitation factor 0.4
Closing differential pressure (diverting) [bar] [Max] 1 bar
Closing differential pressure (mixing) [bar] [Max] 4 bar
Connection size G 2 1/4
Connection types External Thread
Control ratio 100:1
Description VRB 3 PN16 40/25 3-way seated ext. thr
Diameter [mm] 40 mm
Flow characteristic Equal percentage
Function 2 Pressure relief
Kvs values [m³/h] 25 m³/h
Leakage through port (B-AB) max. [% Kvs] 1.0
Leakage through port max. [% Kvs] bubble tight design
Media pH [Max] 10
Media pH [Min] 7
Media temperature [°C] [Max] 130 °C
Media temperature [°C] [Min] -10 °C
Medium alternative Glycolic water up to 50%
Mounting version Flow
Number of ports 3
Permissible media District heating/cooling circulation water
PN alternative VSP 10
Pressure nominal [bar] 16 bar
Product Group Motorized control valves
REACH Candidate List substances 0.1 Lead (CAS no. 7439-92-1)
SCIP dossier product name VRB 3 PN16 DN40-50
Stroke [mm] 15 mm
Stuffing box sealing material EPDM
Type VRB 3
Valve body material Red bronze, mat. No. 2.1096.1 (RG5)
Valve cone material Brass
Valve stem material Stainless steel


Spare Parts






Software and firmware to extend functionality