Precautions When Installing Pneumatic Ball Valves

It is necessary to be careful in the installation of the device, and avoid hitting the valve made of brittle materials. Before the installation, check the valve to check the specifications and models to determine whether there is damage, especially regarding the valve stem. Roll it a few times to see if it is skewed, because it is easy to hit the valve stem during transportation. Also remove the debris in the valve.

　When the valve is lifted, the rope should not be tied to the handwheel or the valve stem to avoid damage to these parts. It should be tied to the flange. The pipeline connected to the valve should be cleaned. Compressed air can be used to blow away iron oxide filings, mud sand, welding slag and other debris. These debris can not only scratch the sealing surface of the valve, but large particles (such as welding slag) can also block the small valve and make it ineffective.

    When installing a screw valve, seal packing (wire hemp plus aluminum oil or polytetrafluoroethylene raw material tape) should be wrapped on the pipe thread, and do not get into the valve to avoid the accumulation of the valve and affect the flow of the medium. The flange of the installation When installing the valve, pay attention to tighten the bolts symmetrically and evenly. The valve flange and the pipe flange must be parallel with reasonable clearance to avoid excessive pressure and even cracking of the valve.

    Special attention should be paid to valves with brittleness data and low strength. Valves that need to be welded to the pipe should be spot welded first, and then the closures should be fully opened, and then welded to death. The main points of the pneumatic ball valve device are analyzed. Protection measures Some valves must also have external protection, which is heat preservation and cold preservation. Hot steam pipelines are sometimes added in the insulation layer. What kind of valve should be kept warm or cold depends on the production requirements.