OPERATION AND MAINTENANCE MANUAL
12-2016
9
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 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 valves with soft seals 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
The product assembled, installed and operated in compliance with this Manual is covered by a
commercial warranty from the manufacturer. The conditions and period of the warranty is specified in the
warranty sheet.
Recommend
ed
Permitted
Not permitted
