Hawle HAWIDO 1505, Manual

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-4-
3 4
p
1
p
2
1
2A 2B 2C
5A
8 7A 7B
6
5B
9B
9A
L
10
B. Commissioning
1. Functional diagram (1505)
Components
1 Main valve 1200
2 Ball valve (A, B, C)
3 Filter
4 Orifice plate
5 One-way flow restrictor (A, B)
6 Pressure reducing control valve
7 Pressure gauge (A, B)
8 Optical position indicator
Electrical
position indicator (optional) Valve opening
limiter (optional)
9 Non-return valve (A, B)
10 Pressure relief control valve
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 have been correctly tightened and sealed.
On the valve:
•
Open ball valves (2A and 2B) and loosen the set screw lock nut on the one-way flow restrictor (5)
•
Unscrew the adjusting screw on the one-way flow restrictor (5) completely. (The line to the control
chamber is open).
•
Close the ball valve (2C)
•
Loosen the threaded pin in the central plug on the position indicator by a few turns.
•
Loosen the threaded pin in the venting elbow by a few turns.
Threaded screw in the venting elbow
Vent hole
•
Lower the adjusting lever on the pressure reduction control valve (6) and turn the lever to the left
until no resistance is felt from the spring.
•
Lower the adjusting lever on the pressure relief control valve (10) and turn the lever to the left until
no resistance is felt from the spring.