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China Suppliers Factory for Butt-welding Short and Long Pattern Lap Joint Stub Ends - Durable & Detachable Components

Lap Joint Stub Ends are essential detachable components in a lap joint flange system, featuring a robust butt-welded stud end paired with a rotatable stub end. This innovative design allows for rapid assembly and disassembly of pipelines while ensuring the integrity of welded seals, Quick Details Table, , , , , , , , , , , , , , , , , , , , , , , ,

, Outside Diameter ,	, 1/2~24 (DN15~DN600) ,
, Thickness ,	, SCH10, SCH40, SCH80 ,
, Standards ,	, ASME B16.9, MSS SP-43, GB/T12459 ,
, Material Grade ,	, 304/304L, 316/316L, 321, S31803 ,
, Surface Treatment ,	, Anti-rust oil, black paint, electric galvanized, hot-dip galvanized ,

, As a leading manufacturer and supplier in China, our factory specializes in producing high-quality Lap Joint Stub Ends that meet international standards. With our commitment to quality and reliability, we ensure that every component is designed for optimal performance in various pipeline applications. Choose our products for fast assembly solutions without compromising on the quality and safety of your piping systems

Product Details

Main Applications of Lap Joint Stub Ends

⚗️

Chemical

Easy maintenance, cost-effective (stainless stub + carbon flange), ideal for corrosive fluids (e.g., acids).

🛢️

Oil & Gas

Quick disassembly for stable-pressure pipelines (e.g., gathering lines, auxiliary systems).

🍶

Food / Beverage

Hygienic, smooth surfaces for easy cleaning (e.g., production lines).

💊

Pharma

Sterility-compliant, frequent cleaning (e.g., purified water pipes).

⚓

Marine

Compact, vibration-resistant (e.g., fuel/cooling systems).

Product types	45Deg/90Deg/180Deg Long/Short Radius
Outside Diameter	1/2”~80” (DN15~DN2000)
Thinkness	3mm – 40mm / SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Standards	ASME B16.9, MSS SP-43,MSS SP-75 ,DIN 2605, ASTM A403,DIN 28011, JIS B 2311, EN10253-2

Product types	Bw concentric & eccentric Reducer
Outside Diameter	1/2”~60” (DN15~DN1500)
Thinkness	SCH5s, SCH10s, SCH40, SCH80,
Standards	ASME B16.9, MSS SP-75, DIN 28011, JIS B 2312, EN10253-2

Product types	EQUAL TEE/REDUCING TEE CROSS
Outside Diameter	1/2”~80” (DN15~DN2000)
Thinkness	3mm – 40mm / SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Standards	ASME B16.9, MSS SP-75 ,DIN 28011, JIS B 2312, EN10253-2

Product types	Bw45° Reducing Lateral Tee Bw45°Straight Lateral Tee
Outside Diameter	1/2”~60” (DN15~DN1500)
Thinkness	SCH5s, SCH10s, SCH40, SCH80
Standards	ASME B16.9,MSS SP-75 ,DIN 28011, JIS B 2312,EN10253-2

Outside Diameter	1/2”~48” (DN15~DN1200)
Thinkness	3mm – 40mm / SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Standards	ASME B16.9, MSS SP-43, MSS SP-75, DIN 2605, ASTM A403, DIN 28011, JIS B 2311, EN10253-2