Gestra CW44 Cooling-Water Control Valve

Cooling-Water Control Valves Gestramat ® CW 44

95 mm
Technical data Dimensions and weights ~190 mm
◗ CW 44, CW 44k Weights Nominal size
G 3/8
G 1/2
G 3/4
G1
Weight [kg]
3.2
3.1
3.1
3.0
Temperature & pressure ratings Pressure
p [barg]
25
Temperature
T [°C]
120 (CW 44) 85 (CW 44k)
Maximum differential pressure
∆PMX [bar]
16
Adjustable outlet temperature
[°C]
n-thermostat: -2/106 (CW 44) k-thermostat: -37/71 (CW 44k)
Troubleshooting Problem
Cause
Action
The flow rate is too low.
The size and design of the The planned return temperature is equipment differ from the
not reached.
system data.
Change the equipment settings.
Check the size.
Use equipment of a size that conforms to the system data.
Fluid is escaping (leakage).
The equipment or body is damaged.
Replace the equipment.
Fluid is escaping (leakage).
A gasket is damaged.
Replace the damaged gasket.
Clean the sealing surfaces.
The equipment does not regulate The control unit is damaged the flow perfectly.
or worn.
Replace the equipment.
The equipment is working irreg- The pipe between the heat Increase the bleed flow.
ularly. Inner parts open and close exchanger and the equipment Install the equipment immediately
at intervals.
is too long.
downstream of the heat exchanger.
The flow rate is too high. The The equipment is incorrectly planned return temperature is set.
not reached.
The movement of inner parts is obstructed by deposits.
Check the equipment settings.
Reduce the bleed flow.
Check the equipment settings.
Reduce the bleed flow.
Clean the equipment.
Make sure that the movement of inner parts is not obstructed.
11