Operation And Use Of Sanitary Quick-release Ball Valve For Food
Sanitary Ball Valve Operation and Use
1) Before operation, make sure that the pipeline and valve have been flushed.
2) The operation of the valve is completed by rotating the valve stem according to the input signal of the actuator: when it rotates 1/4 circle (90°) in the forward direction, the valve is closed. When it rotates 1/4 circle (90°) in the reverse direction, the valve is open.
3) When the direction indicator arrow of the actuator is parallel to the pipeline, the valve is open; when the indicator arrow is perpendicular to the pipeline, the valve is closed.
A long service life and maintenance-free period will depend on the following factors: normal working conditions, maintaining a harmonious temperature/pressure ratio, and reasonable corrosion data.
Note:
● When the ball valve is closed, there is still pressurized fluid inside the valve body
● Before maintenance, release the pipeline pressure and put the valve in the open position
● Before maintenance, disconnect the power supply or gas source
● Before maintenance, separate the actuator from the bracket
● It is necessary to first check that the upstream and downstream pipelines of the ball valve have been relieved of pressure before disassembly and disassembly operations can be performed
● Be careful to prevent damage to the sealing surface of the parts during disassembly and reassembly, especially non-metallic parts. It is advisable to use tools when removing O-rings
● During assembly, the bolts on the flange must be tightened symmetrically, step by step, and evenly
● The cleaning agent should be compatible with the rubber parts, plastic parts, metal parts and working media (such as gas) in the ball valve. When the working medium is gas, gasoline (GB484-89) can be used to clean metal parts. Non-metallic parts are cleaned with pure water or alcohol
● The individual parts that have been disassembled can be cleaned by immersion. Metal parts with undecomposed non-metal parts can be scrubbed with a clean, fine silk cloth soaked in detergent (to prevent fibers from falling off and adhering to parts). When cleaning, all grease, dirt, glue accumulation, dust, etc. adhering to the wall surface must be removed.
● Non-metal parts should be taken out of the detergent immediately after cleaning and should not be soaked for a long time.
● After cleaning, the wall cleaning agent should be evaporated (it can be wiped with a silk cloth not soaked in detergent) before assembly, but it should not be left for a long time, otherwise it will rust and be contaminated by dust.
● New parts should also be cleaned before assembly.
● Use grease for lubrication. The grease should be compatible with the metal material, rubber parts, plastic parts and working medium of the ball valve. When the working medium is gas, grease such as Special 221 can be used. Apply a thin layer of grease on the surface of the seal installation groove, a thin layer of grease on the rubber seal, and a thin layer of grease on the sealing surface and friction surface of the valve stem.
●During assembly, metal debris, fibers, grease (except for specified use), dust and other impurities, foreign matter, etc. should not be allowed to contaminate, adhere or remain on the surface of the parts or enter the inner cavity
