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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: 2026-05-13

Source URL: https://www.haihaohuadian.com/en/products/butt-welding-cap-102

Cap

Butt-Welding Pipe Cap

Name: Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.
Address: Donglin Industrial Zone, Mengcun County, Cangzhou, Hebei, 061400, CN
Telephone: +86 132 9342 5333

Butt-welding pipe caps and dished heads to seal pipe ends in pressurized piping systems.

Category: Cap
Material / Standard: ASTM A234 WPB; A403 WP304/WP316; A420 WPL6; carbon, alloy, stainless steel
Size range: 1/2" - 48" (DN15 - DN1200)
Pressure / Wall: Sch 10 - Sch XXS
Applications: Oil & gas pipelines, refinery, petrochemical, power, chemical, pressure vessel ends, water supply and district heating.
Technical specs: Standards: ASME B16.9 / B16.28, MSS SP-75, EN 10253, GB/T 12459, GB 150. Material: ASTM A234 WPB; A403 WP304/WP316; A420 WPL6; carbon, alloy, stainless steel. Size range: 1/2" - 48" (DN15 - DN1200). Pressure / wall: Sch 10 - Sch XXS. NDT: visual + dimensional; RT/UT/PT/MT on request. Surface: shot-blasted, oiled or painted.

Description

Hebei Haihao Group manufactures butt-welding pipe caps — also known as end caps, blind ends or dished heads — by hot pressing or stamping, welded onto pipe ends or threaded ends to close the line. Available in spherical, ellipsoidal, dished and flat geometries.

Referenced standards

ASTM A234
Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
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