Hebei Haihao Group Huadian High Pressure Pipe Fittings Co., Ltd.
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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: 2026-06-24
Source URL: https://www.chinahaihao.com/en/products/butt-welding-cap-146
Cap

Butt-Welding Pipe Cap

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

Butt-Welding Pipe Cap - 管帽 (1)
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