+86 13313073735 [email protected]

Products
Blind Flanges
Lap Joint Flanges
Slip On Flanges
Socket Weld Flanges
Threaded Flanges
Weld Neck Flanges
Contact US
+86 13313073735
[email protected]
Mengcun Hui Autonomous County, Cangzhou City, Hebei Province

China Top Grade Threaded Flange Supplier & Manufacturer

Yanhao is a professional manufacturer of Steel Threaded Flanges (Screw-on Flanges) integrating research and development, forging, manufacturing, sales and service. We are manufacturing threaded flanges in various shapes, sizes, grades and specification with ANSI standards; the most preferred threaded pipe flanges in stainless steel, carbon steel, alloy steel material for critical applications; and store even odd sizes and hard to find pipe fittings in steel threaded pipe flanges. Our top grade Threaded Flange are widely used in various industry applications such as the oil and chemical industry, medicine, food, wastewater treatment, boiler tubes, and heat exchangers. We could be your best supplier to wholesale high quality but cost-effective threaded flanges.

With tapered internal thread on bore that the pipe screws into, make threaded pipe flanges enable assembly easily and fast without welding. Threaded flange also named screw-on flange is an economical, time-saving device used in various industrial applications but generally only for low pressure condition such as buildings, elevators, railings, precision equipment, etc.

  • Competitive prices, outstanding quality, superior product knowledge, strict quality inspection, hassle-free online ordering and responsive service (before and after sale).
  • Professional OEM/ODM service for thread pipe flanges in various dimensions and materials as per the specifications provided by our clients, meeting international and national standards.
  • ANSI B16.5 thread flanges in pressure class 150-2500 are always in stock, and our unmatched in-house capacity ensures your customized flanges can be shipped on-time.

Wholesale Top Quality Threaded Pipe Flanges At Competitive Price From Yanhao

Where to wholesale good quality threaded flanges at the best price? Look for a reliable threaded flange supplier? Yanhao with over 20 years experiences in producing flanges, could be your best sew-on flange supplier from China! We offer threaded flanges in various dimensions (34″ threaded flange, 12″ threaded flange, 4″ threaded flange, 3″ threaded flange, 2″ threaded flange, 1 1/2″ threaded pipe flange) and materials (stainless steel threaded flange, carbon steel threaded flange, alloy steel threaded flange) as per the specifications provided by our clients. Our sew-on flanges are also available with Raised Face Threaded Flange or RTJ Threaded Flange. List of countries where Yanhao supplies ANSI B16.5 threaded flanges: USA, Japan, Mexico, South Korea, Spain, Argentina, Colombia, Malaysia, Saudi Arabia, Turkey, United Kingdom. Welcome to send your inquiry to China Top Threaded Pipe Flange Supplier – Yanhao!

What Is Threaded Flange?

Threaded Flange (Threaded Pipe Flange, Threaded Forged / Cast Flange), produced by hot and cold rolled, is a Screw-on Flange on connections which allows an easy and quick assembly without welding due to its threaded hole. The screw-on flange is an economical, time-saving device used in various industrial applications, but are suitable only for low-pressure systems in which there are no thermal cycles that could cause the threads to loosen.

The passage is threaded to match an external thread on the pipe. This flange is not recommended for services generating stresses, especially if these are cyclic or undergoing significant temperature variations. Its main advantage is that it can be assembled to the pipe without having to weld, making it suitable for use under very high pressure at atmospheric temperature and in highly explosive areas, where welding is dangerous.

  • Specification of Threaded Flanges

    DN15-DN600
    Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.

  • Threaded Pipe Flange Application

    Chemical, Engineering, Construction, Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Manufacturing Industry, Pipe Projects etc.

  • Threaded Flange Materials

    Carbon Steel Flange: ASTM A105, 20#, Q235, 16Mn, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65 ,F70;
    Stainless Steel Flange: ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;
    Alloy Steel Flange: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/Ⅲ;

  • Sealing Surface Types For Threaded Pipe Flanges

    RF (Raised Face);
    FF (Flat Face);
    M&F (Male-and-Female Face);
    RTJ (Ring-Type Joint)
    F (Female Face);
    M (Male Face);
    T&G (Tongue and Groove Face);

  • Threaded Pipe Flange Standards

    ANSI B16.5

  • Threaded Flange Pressure Grade

    ANSI class 150, 300, 400, 600, 900, 1500, 2500

  • ANSI B16.5 Class 150 Flanges

    ANSI flanges are available at Yanhao Flange in class 150.  The ANSI flanges in the class 150 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 150 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 300 Flanges

    ANSI flanges are available at Yanhao Flange in class 300.  The ANSI flanges in the class 300 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 300 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 400 Flanges

    ANSI flanges are available at Yanhao Flange in class 400.  The ANSI flanges in the class 400 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 400 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 600 Flanges

    ANSI flanges are available at Yanhao Flange in class 600.  The ANSI flanges in the class 600 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 600 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 900 Flanges

    ANSI flanges are available at Yanhao Flange in class 900.  The ANSI flanges in the class 900 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 900 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 1500 Flanges

    ANSI flanges are available at Yanhao Flange in class 1500.  The ANSI flanges in the class 1500 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 1500 are provided by Yanhao Flange as forgings unless otherwise specified.

  • ANSI B16.5 Class 2500 Flanges

    ANSI flanges are available at Yanhao Flange in class 2500.  The ANSI flanges in the class 2500 specification cover slip-ons, weld necks, lap joints, blinds, threaded and socket weld flanges.  ANSI flanges for class 2500 are provided by Yanhao Flange as forgings unless otherwise specified.

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