• Single Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Single Orifice Air Release Valve-Hebei Diefei Valve Co., Ltd.
  • Single Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Single Orifice Air Release Valve-Hebei Diefei Valve Co., Ltd.

Single Orifice Air Release Valve

Single Orifice Automatic Air Release Valve, Compact Micro Vent Vacuum Break Valve for Clean Water Supply Irrigation Pipeline.
  • Single Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Single Orifice Air Release Valve-Hebei Diefei Valve Co., Ltd.
  • Single Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Single Orifice Air Release Valve-Hebei Diefei Valve Co., Ltd.
  • Description

  • About DIEFEI

Product Description:

Single orifice air release valve adopts a compact integrated single-channel structure
for automatic micro exhaust and vacuum breaking. It continuously discharges tiny
trapped air during pipeline operation to eliminate air lock, stabilize water pressure
and boost hydraulic delivery efficiency. It automatically intakes air to eliminate
negative pressure when pumps stop or pipelines drain, preventing pipe deformation
and cracking. Featuring simple structure, stable performance, zero daily maintenance
and high cost performance, it is perfect for medium and low-pressure municipal
clean water, agricultural irrigation and industrial circulating water pipelines.

Technical Data:
1.Design according to BS EN 1074-4:2000.
2.Flange according to EN 1092-2:1997
3.Testing according to EN 12266-1:2012,Working pressure:16kg/cm2.
Shell test pressure:25kg/cm2, Seat test pressure:18kg/cm2.
4.Media: water, neutral oil.
5.External and internal coating:100% fusion-bonded epoxy.
6.SS304, 316 bolts/nuts/washers are available on request。

ABOUT US

Hebei Diefei Valve Co., Ltd., which was established in 1986,is a specialized factory gathering the medium and lower pressure valve developing, manufacturing and selling together. We established Crane Ningjin Valve Co., Ltd with Crane Valve USA in 1995.
Our main products are Butterfly valve, Check Valve, Gate Valve, Ball Valve, Valve Actuator and so on. These valves are available extensive to the pipelines of oil, metallurgy, chemical industry, medical, light textile, paper-making, water and electricity ,tap water company ,central air conditioning system etc.
We own perfect manufacturing process and testing  way of casting, matching and assembling. We are authorized the Quality Management system certificate of  ISO9001:2015, Environmental Management system certificate of ISO14001:2004,CE Certificate and the Approval of Manufacturer Certificate of DNV. Our company products are mainly sold to many large-scale agglomerations like CNPC, Sinoepc, CSPC, DAIKIN , Haier, Midea and etc. And exported to USA, Europe, Africa, Southeast Asia, Taiwan etc countries and area.
We are willing to serve our customers at home and abroad with our excellent products and services.


CERTIFICATE OF NSF61/372

 

PACKAING AND TRANSPORTATION

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Guided by our core principle of "Quality First, Customer Supreme," Diefei Valve remains committed to technological innovation and continuous product evolution. In line with global carbon neutrality and eco-friendly energy goals, we actively develop green, high-efficiency, and low-energy fluid control systems. We welcome global OEMs, distributors, and project contractors to partner with us for custom OEM/ODM engineering, competitive factory-direct pricing, and uncompromised quality assurance.
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