Silence Check Valve
Product introduction
Oversized silence check valve is flow-line designed according to hydrodynamics and the pressure loss is very little. The valve is installed at the outlet of the pump, and it closes before the fluid flow backward, so prevent water-hammering, water-hitting and destructive impact. So the valve can run quietly in the system. It is widely used in feeding/draining system, fire protection, heat supplying system and industry.
Main technical parameters
Nominal pressure: 1.0-2.5MPa
Nominal diameter: 300-1200mm
Service: Water, oils, sea water, sewage
Working temperature: 0-80
Flanged end: GB/T17241.6 GB9113
Inspection and test: GB/T 13927 API 598
|
Material |
|
part |
body |
disc |
bearing |
spring |
Diversion shuttle |
seat |
|
material |
GG25 |
ZQA19-4 |
ZQA19-4 |
SUS316 |
Gg25 |
ZQA19-4 |
|
Main dimensions unit:mm |
|
DN |
300 |
350 |
400 |
450 |
500 |
600 |
700 |
800 |
900 |
1000 |
1200 |
|
L |
181 |
184 |
191 |
203 |
219 |
222 |
280 |
356 |
368 |
432 |
524 |
|
Gaoneng Valve Group Co., Ltd was established in 1985, two industrial zone ( sanqiao and lishui) and five baby companies, around 200 employees, of which 10 are engineers and technicians. GAONENG is a specialized manufacturer of industrial valve according to API, ASME, EN, ISO, JIS, DIN, BS, GOST & GB standards.
The product includes butterfly valve, ball valve, gate valve, check valve, globe valve, plug valve etc. Especially for butterfly valve is our leading products, maximum size can reach DN4500, almost cover any kinds of structure. Some items are the first in our domestic. Material can be cast iron, ductile iron, carbon steel, stainless steel etc.
GAONENG VALVE launched its quality management and safety system as ISO 9001, ISO14001, OHSAS18001 and awarded API 6D, API 600, API 607, API 6FA, CE/PED approvals for the product.
Upon the continues increase on customers demand, GAONENG invested a more effective control line with CNC lathe, CNC miller, CNC driller, and the max. Machining ability reached 4000mm. The connectable solid warehouse system from parts to finished good ensures the production flow can be alternative by vary demand.
GAONENG VALVE is dedicated to supplying high quality valve solutions for global industries since its inception in 1985. In the new century, GAONENG is facing a historical development opportunity and furious competition. By holding the persistence improving in management and product quality, GAONENG will provide higher and better service to you.
Welcome to GAONENG
