4 Inch Check Valve

Description

A 4 in check valve is a valve that automatically prevents the backflow of fluid. The disc of the check valve opens under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the pressure on the inlet side is lower than that on the outlet side, the valve disc will automatically close under the action of fluid pressure difference, gravity and other factors to prevent the fluid from flowing back.

Features:
1. The design and manufacture of check valve products are designed and manufactured according to GB/T 12235, with reliable sealing and excellent performance.n2. The sealing surface of the valve disc and valve seat is made of stellite cobalt-based hard alloy surfacing, which is wear-resistant, high-temperature resistant, has good scratch resistance and long service life.n3. Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.n4. The valve body has a complete variety of materials, and the packing and gasket are reasonably selected according to the actual working conditions or user requirements, which can be applied to various pressure, temperature and medium working conditions.n5. Check valves with different structural forms and connection forms can be manufactured according to user requirements, and used for various equipment.n6. In order to prevent the backflow of the medium, check valves should be installed on the equipment, devices and pipelines;n7. The check valve is generally suitable for clean medium, not suitable for medium containing solid particles and high viscosity;n8. Generally, horizontal lift check valves should be used on horizontal pipes with a nominal diameter of 50mm;n9. Straight-through lift check valve can only be installed in horizontal pipelines;n10. For the pump inlet pipeline, the bottom valve should be selected. The bottom valve is generally only installed on the vertical pipeline of the pump inlet, and the medium flows from bottom to top;n11. Can you produce the products according to my own drawings?n12. Which price terms could accepted?