Check Valve
Pressure: 150LB-2500LB
Size: DN15-DN2000
Design Std: API, DIN, BS, GB, JIS
Product Material: LCB, ASTM A351 CF8, CF8M, CF3, CF3M, A105, WCB
Wafer Check Valve
Product use
Butterfly check valve for clean lines and industrial, environmental protection, water treatment, high-rise buildings to the drainage to prevent reverse flow of media use.
Product introduction
The wafer flange clamped butterfly check valve is a energy-save product. It is manufactured based the foreign advanced technology and in accordance with relative international standards. This product is featured by excellent retaining per-formance, high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical food processing, medicine, textile, paper-making. Water, supply, drainage, metallurgy, energy, and light industry, etc, used as a check valve in one way.
Standerds compliance
Design and Manufacture: ANSI B16.34, API 6D
Face to face: API 6D
Flanged connection: 2-24 to ANSI B16.5 to API 605 on request
Test and inspection: API 6D
Shell test 150Lb 450 PSI, 300Lb, 600LB, 900LB
Seat test 150Lb 315 PSI, 300Lb 815 PSI, 600LB, 900LB(Hydrostatic)80PSI(Air)
Featutes
1. Small in size, light in weight, compact in structure, easy in maintenance.
2. Two torsion springs are used excerting on each of the pair valve plates. Which close the plates quickly and automatically.
3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
4. This valve is short in length, so that it is rigid and easy to mount.
5. It is easy to install on pipeline which is laid horizontally or vertically.
6. This valve is tightly sealed without leakage under the pressure water test.
7. Safe and reliable in operation, high interference-resistance.
8. The connection dimensions of flanges accord with the standards of GB4216-84 GB4216.84
9. The face to face dimensions are in accordance with GB12221-89. ISO5752-82. The stem of the valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeling. For vertical installation the direction of flow should be downward.
Shanghai Shangzhou Valve Manufacture Co., Ltd., established in 2001, covers an area of 23, 800 m and owns 8, 570 m² Of building areas. The company is located in Fengxian District of Shanghai, just 8 km away from the golden beach of Fengxian Bay Tourist Resort. It is a specialized manufacturer and supplier which integrates design, development, manufacturing, sales and after-sales service.
Our company always keep improving our key technology, innovating the ideas and strengthening internal management, which help enterprise to develop and grow steadily. Our company also holds technical centers and quality inspection center, all the products designed and manufactured strictly conform to the National Standards or the International Standards. In addition, we supervise the whole process seriously: From purchasing the raw materials to the final shipping.
We effect the policy of "quality first, user foremost, excellence in details, making more efforts", so as to provide customers with better solutions! Meanwhile, our company admitted by ISO9001: 2000 quality management system and has passed the AZ certification which is used for the special equipments of pressure pipes.
All our products can be made under different standards such as: GB, API, DIN, JIS, etc. Main products include gate valves, globe valves, ball valves, butterfly valves, plunger valves, check valves, leakproof valves and other special industrial valves. Patented products include leakproof valve (Patent No. 02232995.1), leakproof globe valve (Patent No. 01227164.0), leakproof gate valve (Patent No. 200820055101.9), no return ball valve (Patent No. 02235459. X) and soft-sealing thin gate valve (Patent No. 200820055102.3). As for the materials of valve body, there are carbon steel, alloy steel, stainless steel, ultralow carbon stainless steel, and etc. The valve pressure rating ranges from PN1Mpa. To 57 Mpa. (American standard pressure rating ranges from 150 LB to 3, 500 LB); The nominal diameter ranges from DN10mm to DN2000mm (American standard specification ranges from 1/2" to 36"); And the applicable operating temperature is from -196C to 780C. Our Company's valve products are widely used in industries such as petroleum, fuel gas, electric power, chemical engineering and metallurgical industry.
Shangzhou has been in an unprecedented new stage of development. The products are more and more popular due to the perfect performance, high quality, reasonable price, good customer service and efficient brand operation. We sincerely expect your further support and trust. Looking forward to working with you and creating a prosperous future together! ²
