Check Valve X9501 – Xushi Detail:
ITEM | COMPONENT | MMATERIAL | QUANTITY |
1 | UNION NUT | U-PVC | 1 |
2 | END CONNECTOR | U-PVC | 1 |
3 | O-RING | EPDM·NBR·FPM | 1 |
4 | SPRING | STAUNLESS STEEL | 1 |
5 | PISTON | U-PVC | 1 |
6 | GASKET | EPDM·NBR·FPM | 1 |
7 | BODY | U-PVC | 1 |
SIZE | NPT | BSPT | BS | ANSI | DIN | JIS | |||
Thd./in | d1 | d1 | d1 | d1 | D | L | H | ||
25mm (1″) | 11.5 | 11 | 34 | 33.4 | 32 | 32 | 45.4 | 130 | 69.2 |
40mm (1½”) | 11.5 | 11 | 48 | 48.25 | 50 | 48 | 61 | 172.2 | 89 |
50mm (2″) | 11.5 | 11 | 60 | 60.3 | 63 | 60 | 75 | 162.5 | 96.7 |
A detailed description of the check valve:
Check valves are automatic valves, also known as check valves, one-way valves, return valves or isolation valves. The movement of the disc is divided into lift type and swing type. The lift check valve is similar in structure to the shut-off valve, but lacks the valve stem that drives the disc. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the weight of the disc and its flow resistance, the valve is opened. On the contrary, the valve is closed when the medium flows back. The swing check valve has a disc that is inclined and can rotate around the axis, and the working principle is similar to that of the lift check valve. The check valve is often used as the bottom valve of the pumping device to prevent the backflow of water. The combination of check valve and stop valve can play the role of safety isolation. The disadvantage is that the resistance is large and the sealing performance is poor when closed.
Product detail pictures:

Related Product Guide:
With our excellent administration, potent technical capability and strict top quality control technique, we go on to provide our consumers with trusted quality, reasonable price ranges and fantastic providers. We intention at becoming one among your most trusted partners and earning your fulfillment for Check Valve X9501 – Xushi, The product will supply to all over the world, such as: Slovenia, UK, Singapore, Our monthly output is more than 5000pcs. We have set up a strict quality control system. Please feel free to contact us for further information. We hope that we can establish long-term business relationships with you and carry out business on a mutually beneficial basis. We are and will be always trying our best to serve you.

High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.

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