Double door, spring loaded, wafer check valve designed to protect your gas or liquid piping systems.
DESCRIPTION:
1. Working pressure: PN10/16/25
2. Tests: API598; DIN3230
3. Flange standard: DIN2501 PN10/PN16; BS4504 PN10/PN16;
BS10 TABLE"D"/"E" /JIS2220 10K/16K; ANSI125/150
4. Face to face: ANSI125/150; DIN3203 K3-1999
5. Applications: Water, industrial systems
6. Working temp: EPDM: -10° C~+120° C/NBR: -10° C~+80° C/VITON: -23° C~+150° C
7. Medium: Fresh water, sea water, waste water, food stuff, steam, all kinds of oil, all kinds of acid and alkaline liquid etc
Features&Benefits:
1. Light weight, versatile design, 80 to 90% lighter than conventional full-body check valves.
2. Reduces pipe supports, simplifies piping, easier, less costly installation. - Reduced thermal and seismic considerations. - No need for additional expensive support. - Optimum space utilization; Simplified piping.
3. Spring-loaded, double door design has low cracking pressure.
4. Discs open 85° To ensure positive closing.
5. Extended leg springs prevent seat wear caused by scrubbing.
6. Springs are precisely calculated to increase the responsiveness of the disc, thus reducing damaging effects of water hammer.
7. Resilient or metal-to-metal seat available.
8. BUNA-N, Viton, EPDM (and other materials as required) molded into the body.
MATERIALS LIST
Body |
Cast iron GG25 |
Ductile Iron GGG40 |
Stainless Steel CF8M/SS316 |
Disc |
Stainless Steel SS316/SS304 |
AL Bronze |
Carbon Steel |
Seat Gasket |
Rubber NBR/EPDM |
Spring |
Stainless Steel |
Axle |
Stainless Steel |
Washer |
TEFLON |
Laizhou dongsheng valve co.,Ltd is a professional valve plant, is a collection of research and development, design, the manufacture, the sale of integrated specialized company. Our main products are series of check valves, including all kinds of single disc swing check valve, double disc swing check valve, flange and threaded ball check valve, flange and wafer silent check valve, stainless steel lift check valve, diaphragm valve, ball valve and butterfly valve etc.
We hold a set of scientific and strict management system, strong technical force, advanced processing equipment and reasonable technical progress, high technology and quality technicists and workers. We have 200 employees, and our factory area is 30000 square meter. We always hold "Do to the quality of survival, to the credibility of development.", so we produce every product carefully and treat every customer sincerely. Our products are used to open and close the pipeline of oil, chemical, water, gas and food etc. Our products are exported mainly to Europe, America, Africa, Southeast Asia, the Middle East and Russia etc. Our products are praised by foreign and domestic customers.
We own good quality certificated by ISO9001 and CE. Welcome friends from home and abroad to visit us. And we look forward to having a sincere and favorable cooperation with you.