Precision Forged Flanges & Fittings - Built for Global Markets
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Product Catalog

Complete range of industrial forged flanges and pipe fittings. 11 flange types + 9+ fitting types. 60+ material grades. Global export.

Flanges & Fittings

What We Manufacture

JIAJI FORGING produces industrial forgings for oil & gas, petrochemical, marine, and power generation applications. All products manufactured in our Wenzhou facility under ISO 9001 and PED-AD2000 certified quality system.

Forged Flanges

11 types | DN15-DN1000 | Class 150-2500LB

Weld Neck (WN)

DN15-DN1000, Class 150-2500

Blind (BL)

DN15-DN1000, Class 150-2500

Slip-On (SO)

DN15-DN600, Class 150-900

Socket Weld (SW)

1/2"-3", Class 150-1500

Threaded (TH)

DN15-DN600, Class 150-300

Lap Joint (LJ)

DN15-DN600, Class 150-2500

Plus: Long Weld Neck, Nipoflange, Weldoflange, Spectacle Blind, Line Spade & Spacer

Forged Fittings

9+ types | 1/2"-4" | Class 2000-9000LB

Weldolets

MSS-SP-97, 1/2"-24", BW

Sockolets

MSS-SP-97, 1/2"-24", SW

Elbows (90/45 deg)

ASME B16.11, 1/2"-4"

Tees & Crosses

ASME B16.11, 1/2"-4"

Couplings & Caps

ASME B16.11, 1/2"-4"

Unions & Plugs

ASME B16.11, 1/2"-4"

Full range of threaded and socket weld fittings for small-bore piping.

Standards & Materials

Available Standards & Materials

Standards

ASME/ANSI: B16.5, B16.47, B16.48
EN/DIN: EN1092-1, BS4504, DIN2502
GB/HG: GB/T9119, HG/T20592, SH3406
Fittings: ASME B16.11, MSS-SP-97

Materials

SS: F304/L, F316/L/Ti, F321/H, F347H, F310, F904L
Duplex: 2205, 2507, 254SMO, S32760
Alloy: Inconel 625, Hast. C276, Monel 400, Incoloy 800/825

Certifications

System: ISO 9001 (TUV SUD NB0036)
Product: PED-AD2000 (EN AD2000)
Documents: MTC EN 10204 3.1/3.2, Inspection Report, UT available

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