49 visiting now: 40 USA USA flag 2 Canada Canada flag 2 Singapore Singapore flag 2 France France flag 2 Germany Germany flag 2 Brazil Brazil flag 1 UK UK flag 1 Argentina Argentina flag 1 Ukraine Ukraine flag 1 Hong Kong Hong Kong flag 1 Australia Australia flag 1 India India flag 1 Nepal Nepal flag

Highlighted Companies

Ductile Iron Double Orifice Automatic Air Release Valve - China

price: contact company for price

Ductile Iron Double Orifice Automatic Air Release Valve

Product Description

Size: 1½" - 12" (DN40 - DN300)

Standard: DIN / BS / ANSI / Korean

Pressure: PN10, PN16, PN25

Coating: WRAS approved epoxy powder at 300 micron thick

Media: Water

Certificate: ISO, SGS, CE

What is Double Orifice Air Valve?

The Dual Orifice Air Valve is an innovative combination of a small and large orifice air valve in a compact cylindrical housing.

The function of the large holes is to allow a large amount of air to enter during the duct discharge phase and to expel a large amount of air during system filling.

Under operating conditions, any small air accumulations are expelled through the small holes.

The novel design has corrosion-inhibiting components acting through the center shaft and reduced weight compared to the comparative unit.


Company Contact:


  • Phone: 86-0317-8349588

  • Address: Siying Industry Zone, Botou, Botou , Hebei , China

  • Email: Email


Published date: February 15, 2023

  • Business Description: Hebei Jinghangyu factory group was established in July 1995, who has 3 branch factories covering 89000 square meters: Jhy foundry; Jhy polishing factory; and Jhy valve manufacturing factory.

    1 - Jhy foundry is a professional manufacturer integrating ductile iron cast making and cast processing, to provide finest finished castings;

    2 - Jhy polishing factory provides the grinding and shot blasting function to clean the casting body;

    3 - Jhy valve factory provides one-stop service of valve casting from its own foundry to finished valves, including all 10 production processes.

    The annual production capacity is 56,000 tons of castings and 390,000 finished valves approximately.

    As the leader in the foundry and valve industry, Jhy factory group has 2 groups of 12 engineers and R&D team, and 3 production departments, 3 quality assurance departments, 2 sales departments, cooperated together to serve our customers.

    Jhy’s main products include dozens series of water supply and drainage valves, HVAC valves, fire-fighting valves, industrial valves at more than 1,000 specifications.

Related listings



  • Hydraulic Flow Control Fire Pressure Reducing Valves
    Hydraulic Flow Control Fire Pressure Reducing Valves
    Valves - Hebei Jinghangyu Valve Manufacturing Co.,Ltd - China - February 15, 2023 - contact company for price

    Hydraulic Flow Control Fire Pressure Reducing Valves Product Description Name Material Body Ductile iron GGG50 with WRAS FBE coating Stem Carbon steel with galvanization, SS420, SS304, SS3316 Seat Ductile iron, brass Ball valve Brass Pilot tube Brass...

  • Ggg50 Ductile Iron Rubber Flap Flange Check Valve
    Ggg50 Ductile Iron Rubber Flap Flange Check Valve
    Valves - Hebei Jinghangyu Valve Manufacturing Co.,Ltd - China - February 15, 2023 - contact company for price

    GGG50 Ductile Iron Rubber Flap Flange Check valve Check valve Description Size: 1½" - 48" (DN40 - DN1200) Standard: DIN/BS/ANSI/Korean Struct ure: Check Pressure: PN10, PN16, PN25 Coating: WRAS approved epoxy powder at 300 micron thick Media: Water C...

  • Ductile Iron Cast Worm Gear Double Flange Butterfly Valve
    Ductile Iron Cast Worm Gear Double Flange Butterfly Valve
    Valves - Hebei Jinghangyu Valve Manufacturing Co.,Ltd - China - February 15, 2023 - contact company for price

    Ductile Iron Cast Iron Worm Gear Double Flange Butterfly Valve Butterfly Valve Description Size: 1½" - 48" (DN40 - DN1200) Standard: DIN/BS/ANSI/Korean Struct ure: Butterfly Pressure: PN10, PN16, PN25 Coating: WRAS approved epoxy powder at 300 micron...



Safe Trade Tips

  • Ask for business references and check them
  • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
  • Verify their business via their local Chamber of Commerce
  • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
  • Get to know more about scams and fraud to avoid: Internet Crime Complaint Center - Consumer Financial Protection Bureau
  • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"