Company Details
  • CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD

  •  [Hebei,China]
  • Business Type:Manufacturer
  • Main Mark: Worldwide
  • Exporter:71% - 80%
  • Certs:GS, GB, ISO9001, ISO9000, ISO9002, ISO14000
  • Description:Pipe Flange Types,ASME PIPE FITTING,GOST 12821 Welding Flange
CANGZHOU HAOYUAN PIPE FITTINGS MFG CO.,LTD Pipe Flange Types,ASME PIPE FITTING,GOST 12821 Welding Flange
Home > Products > Steel Flange > Welding Neck Flange > Class 300 ANSI B16.5 WN Flange

Class 300 ANSI B16.5 WN Flange

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    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 1 Bag/Bags
    Delivery Time: 3 Days

Basic Info

Model No.: 3/4"-100"

Standard: DIN, ANSI, GOST, ASME  B16.5,ASME/ANSI B16.36,ASME B16.47

Type: Welding Flange, Class 300 ANSI B16.5 WN Flange

Material: Carbon Steel

Structure: Flanges

Connection: Welding

Sealing Surface: RF

Manufacturing Way: Forging

Certification: ISO.UKS.SGS.BV

Package: Wooden Boxes, Wooden Pallets

Brand Name: HAOYUAN

Crafts: Cold Extrusion, Thermoforming, Forging

Nominal Pressure: Class300

Application: Water Conservancy, Electric Power, Power Station

Materials: A105,Q345,Q235...

Size: 3/4"-100"

Additional Info

Packaging: Wooden boxes, Wooden pallets

Productivity: 20T/Day

Brand: HAOYUAN

Transportation: Ocean,Land,Air

Place of Origin: CANGZHOU

Supply Ability: 500T/Month

Certificate: ISO

Product Description

Butt welded Steel Flange: for the Flange and the pipe of the mouth of the welding, its reasonable structure, strength and greater steel, withstand high temperature and pressure and repeated bending and temperature fluctuations, sealing and reliable. Nominal pressure of 0.25-2.5Mpa of the butt Weld Flange with concave and convex sealing surface.
Socket welding flange: commonly used in PN ≤ 10.0Mpa, DN ≤ 40 in the pipeline;

High-quality products

GOST 12821 Welding Flange

2 pipe flange

flanged pipe fittings

Welded neck flange not easy to distortion, good sealing, widely used, butt thinning transition weld joints ,horn shape, avoid shape change when welding in high temperature. applicable to high temperature pipeline, high pressure and low temperature pipeline, normally used to connect pipes and valves which PN is greater than 2.5MPa; also used to transport expensive, flammable, explosive media pipeline.

Our packaging

slip on flange

Flange fittings


Steel Flange Production Process

Flange production process


Steel Flange workshop

Flange production

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carbon steel flange

steel pipe flange

Production Process


Sales Network


Cangzhou Haoyuan Pipe Fitting Mfg Co.,Ltd. Is a professional manufacturer which can produce all kinds of carbon steel ,alloy steel and stainless steel high and low pressure flange, elbow, tee, cross, reducer, bend, Pipe Cap, Seamless Steel Pipe and ERW pipes in accordance with the production standard ASME, DIN, JIS, EN, BS, GB, GOST, etc .
Products are sold at home and abroad. Enterprise has the first-class production equipment of cold forming, hot push-pull, forging and testing equipment of physical and chemical, metallurgical, detection, spectrum and so on,having complete mechanical testing system.Over the years, the company provide good quality pipe and pipe fitting products for domestic thermal power, chemical, shipbuilding, metallurgy, pressure machine, oil and petrochemical, and other key projects. At the same time, the products are also exported to Europe, America, Middle East, Africa and Southeast Asia and other countries and regions.
The company has a number of professional staff. Passed the ISO9000 international quality system certification, and achieved a pressure vessel certificate, plays an important role in this production field. We adopt scientific production process, strict quality management, advanced service concept, and reasonable prices to win a good reputation, established a close and pleasant cooperation with domestic and foreign customers.

Looking for ideal Pipe Flange Types Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the ASME PIPE FITTING are quality guaranteed. We are China Origin Factory of GOST 12821 Welding Flange. If you have any question, please feel free to contact us.

Product Categories : Steel Flange > Welding Neck Flange

Product Images
  • Class 300 ANSI B16.5 WN Flange
  • Class 300 ANSI B16.5 WN Flange
  • Class 300 ANSI B16.5 WN Flange
  • Class 300 ANSI B16.5 WN Flange
  • Class 300 ANSI B16.5 WN Flange
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