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Product Spec Sheet

Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.

Donglin, Mengcun County, Cangzhou City, Hebei Province, China

Generated on: 2026-06-10

Source URL: https://www.haihaohuadian.com/en/products/blind-flange-122

Flange

Blind Flange

Forged steel flanges — welding-neck, slip-on, socket-weld, threaded and blind — for high, medium and low pressure piping.

Category: Flange
Material / Standard: ASTM A105 / A182 F11/F22/F304/F316; carbon, alloy, stainless steel
Size range: 1/2" - 60" (DN15 - DN1500)
Pressure / Wall: Class 150 - Class 2500 / PN 6 - PN 420
Applications: Oil & gas, refinery and petrochemical plants, power generation, chemical and pharmaceutical, shipbuilding and offshore, pressure vessel and equipment connections.
Technical specs: Standards: ASME B16.5 / B16.47, MSS SP-44, EN 1092-1, GB/T 9112-9124, JIS B2220, DIN 2627-2638. Material: ASTM A105 / A182 F11/F22/F304/F316; carbon, alloy, stainless steel. Size range: 1/2" - 60" (DN15 - DN1500). Pressure: Class 150 - Class 2500 / PN 6 - PN 420. Faces: RF / FF / RTJ / Tongue-Groove / Male-Female. NDT: visual, dimensional, RT/UT/PT/MT and PMI on request.

Description

Hebei Haihao Group manufactures blind flanges in carbon, alloy and stainless steel from forged blanks, machined to ASME B16.5, B16.47, EN 1092-1, GB/T 9112-9124 and JIS / DIN equivalents. Suitable for both pipe-to-pipe and pipe-to-equipment connections including reducer-gear flanges.

Referenced standards

ASTM A105
Standard Specification for Carbon Steel Forgings for Piping Applications
ASTM International

Contact

Manufacturer: Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.
Mobile: +86 132 9342 5333
Email: haihaojituan@163.com
Website: www.haihaohuadian.com