• Double Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Double Orifice Air Release Valve
  • Double Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Double Orifice Air Release Valve

Double Orifice Air Release Valve

Double Orifice Automatic Air Release Valve, Anti Leakage Vacuum Break Valve for Water Supply, Fire Fighting, Irrigation Pipeline.
  • Double Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Double Orifice Air Release Valve
  • Double Orifice Air Release Valve,Hebei Diefei Valve Co., Ltd.,Double Orifice Air Release Valve
  • Description

  • About DIEFEI

Technical Data:

1.Design according to BS EN 1074-4:2000.
2.Test according to EN 12266-1:2012, Working pressure:16kg/cm2,
   Shell test pressure:25kg/cm2, Seat test pressure:18kg/cm2.
3.Media: water, neutral oil.
4.External and internal coating:100% fusion-bonded epoxy.
5.Material 304, 316 used in bolt, nut and washer can be available by requirements.

Product Features:

1.Dual-orifice design: Separates large-volume quick exhaust and daily micro venting,
adapts to all pipeline working conditions.
2.Vacuum breaking protection: Prevents pipeline deformation, cracking and secondary
pollution under negative pressure.
3.Leak-proof & durable: Less sealing surface impact, effectively avoids common
water leakage of single-orifice valves.
4. Energy saving & high efficiency: Reduces water flow resistance, lowers pump
operation load and power consumption.
5.Wide application: Suitable for municipal, fire, irrigation and industrial pressure water pipelines.

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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