Hawle HAWIDO 1405, Manual

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-4-
B. Commissioning
1. Functional diagram (1405)
Components:
1 Main valve 1200
2 Ball valve (A, B, C)
3 Filter
4 Orifice
5 One-way flow restrictor
6 Control valve
7 Pressure gauge
8 Position indicator
Electrical position indicator (optional)
Valve opening limiter (optional)
9 External pressure (tube) on site
2. Preparation
Before commissioning the valve, check that the gate valves on the inlet and outlet sides of the valve are
closed and that the flange connections are correctly tightened and sealed.
On the main valve:
•
Open the ball valves (2A, 2B)
•
Loosen the lock nut on the one-way flow restrictor (5) and unscrew the adjusting screw by approx-10
turns. (The path to the control chamber is completely open).
•
Close the ball valve (2C)
•
Loosen the headless screw in the central plug on the position indicator.
•
Loosen the headless screw in the male adaptor elbow union with venting
headless screw
vent hole
•
Tip over the adjusting lever on control valve (6) and turn the lever clockwise until a very strong
resistance is felt from the spring.
3 4
p
1
p
2
1
2A 2C
5
8 7
6
L
9 FD
2B