Jafar 2109 Руководство по эксплуатации и техническому обслуживанию - Страница 9
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adjusted by the manufacturer is ready for installation. Any dismantling of the valve components may result in loss
of seal.
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 the product is damaged mechanically, do not install it in the pipeline.
The figure below shows the method for coupling the gate valve 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 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.
4.4 OCCUPATIONAL HEALTH AND SAFETY
The metal seated gland packed flanged gate valves are eligible for the OHS guidelines and
recommendation concerning installation of pipelines and devices for water supply stations, heat power plants,
water treatment plants, sewage treatment plants, pumping stations and other facilities, and eligible for the Polish
Regulation concerning general OHS laws (use of personal protective equipment for hands, legs and head, and
safety garment), especially at work with low or high temperature hazard.
Misuse of this product is prohibited.
5 WARRANTY TERMS AND CONDITIONS
OPERATION AND MAINTENANCE MANUAL
Recommend
ed
Permitted
Not permitted
12-2015
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