Five common maintenance and installation steps for V-type ball valves:

1. Cleaning of V-type ball valve -- to overhaul the valve removed from the process pipeline, all parts impregnated with the process medium must be cleaned. Lest certain corrosive or other harmful fluids cause damage to people and equipment. At the same time, parts should be removed from the exposed surface of the rust.

2. Removal of V-type ball valves -- inspection of all parts to determine scope for repair and replacement. First, the actuator and valve should be completely removed. Precision machined surfaces of precision machined parts such as spool, seat, stem, push rod, bushings and all other parts must be protected to prevent damage and keep maintenance cost zUI low. Special tools should be used to remove the seat.

3, maintenance of main parts - valve core throttling surface and valve core and seat sealing surface such as small rust and wear. It can also be repaired by general machining and grinding methods. If the damage is serious, a new part must be replaced. Repair to ensure good valve core and seat coaxiality.

Damaged stem seal surface must be replaced with new parts.

Damage to the guide and sealing surface of the push rod. The reaction actuator must be replaced with a new part. Appropriate repairs may be made to the positive actuators.

Compression spring in maintenance, such as found cracks and other defects affecting the strength. You have to replace it with a new one.

4, the replacement of vulnerable parts -- the V-type ball valve vulnerable mainly: packing, O-ring seal, gasket, diaphragm and other parts.

The disassembled packing, O-ring and gasket must be replaced with a new one during each overhaul. After the diaphragm is removed, it is necessary to check whether there are any cracks, signs of aging and wear that may indicate rupture, and then decide whether to replace them according to the specific situation. Generally, it must be replaced in 2 ~ 3 years at most.

5. Assembly and commissioning -- During assembly, appropriate grease should be applied to the positioning part, guiding part and threaded connection part to facilitate the next inspection and disassembly. Special attention should also be paid to the coaxiality of the push rod, spool components and seat in the whole machine.

After completion of assembly and commissioning, the products must pass the factory test items specified in the standard before continuing installation and use.

V-type ball valve is a core valve seat using metal, or metal to ptFE seal with the rotary ball valve, it will ball valve and butterfly valve control characteristics combined into one, can be used as a control valve, but also for the shutoff shutoff valve. V-type ball valves are required to have flow regulation and working conditions in the medium for impurities in the fluid particles. Hemispheres do not have the function of flow regulation, can also be used in the fluid with impurity particles under working conditions.

V-shaped ball valve

V-type ball valve belongs to fixed ball valve, is also a single seat sealing ball valve, regulating performance is the ball valve, flow characteristics is equal percentage, adjustable ratio up to 100:1. Its V-cut and metal seat between shear action, especially suitable for containing fiber, micro solid particles, slurry and other media. Suitable for frequent operation, fast opening and closing, light, small fluid resistance, simple structure, small relative volume, light weight, easy to maintain, good sealing performance, not limited by the direction of installation, the flow of the medium can be arbitrary, no vibration, small noise. Eccentric half ball valve also known as CAM flexure valve, its working principle is an eccentric rotation of the sector ball valve, the use of eccentric ball crown and valve seat tangent, open, ball core from the seat; When closed, the ball core gradually contact the seat, so that the ball on the seat pressure.