Jafar 2901 Handbuch für Betrieb und Wartung - Seite 9

Blättern Sie online oder laden Sie pdf Handbuch für Betrieb und Wartung für Kontrolleinheit Jafar 2901 herunter. Jafar 2901 10 Seiten. Flange-to-flange gate valves with soft seals and pneumatic actuators

Seite drucken

4.2 ASSEMBLY INSTRUCTIONS

Before attempting to install the valve, check the technical and commercial documents delivered with the

product to verify that the media and pipeline operating parameters comply with the manufacturer's declaration.

Any change in the operating conditions must be consulted with the valve manufacturer beforehand.

Before attempting to assemble the valve, remove the main bore plugs, check the inner

surfaces of the valve and thoroughly flush with water, if necessary.

CAUTION! If mechanical damage is found on the product, do not install it in the pipeline.

Before commissioning the gate valve equipped with an actuator, check during the connection

and adjustment of the actuator that the

joints of the air supply system and electrocution protection features have been installed

according to the manual from the actuator manufacturer.

The figure below shows the method for coupling the gate valve with its pneumatic actuator and the valve

orientation diagrams:

1. Valve; 2. Nut; 3. Gasket; 4. Pipeline flange; 5. Washer; 6. Fastening bolt

4.3 OPERATION

The gate valve shall be operated according to all relevant requirements for cut-off valves, i.e. either in

fully open or fully closed positions. Leaving the knife gate valve partially opened (or closed) may result in seal

failure. To ensure full performance, switch the knife gate valve periodically (once a year, from fully open to fully

closed).

Exceeding the operating limits of the valve may result in damage that will not covered by the suretyship

granted by the manufacturer.

Recommend

OPERATION AND MAINTENANCE MANUAL

Not permitted

Permitted

09-2015