Lap Joint Stub Ends

High-quality lap joint stub ends designed for use with lap joint flanges in piping systems requiring frequent dismantling and maintenance. Manufactured to international standards to ensure durability, corrosion resistance, and reliable long-term performance.

LAP JOINT STUB ENDS

PRODUCT DRAWING

PRODUCT CONSTRUCTION

NAME : Lap Joint Stub Ends

MATERIAL : ASTM / ASME SA 790 UNS NO S 31803, S 32205, S 32550, S 32750, S 32760 ASTM / ASME A 53 GR. A, B ASTM / ASME 106 GR. A, B, C API 5L GR. B, API 5L X 42, X 46, X 52, X 60, X 70 ASTM / ASME A 691 GRA, B, C ASTM / ASME A 335 GRP 1, P5, P9, P11, P12, P22, P23, P91 ASTM / ASME A 691 GRP1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91 Hastelloy C-22, C-276, C-2000 Inconel 600, 601, 625, 625LCF, 686, 718, 800, 825, X-750 Monel 400, K500 ASTM / ASME SA 312 GR. and ASTM / ASME SA 358 CL 1 & CL 3 GR.TP 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316 LN, 317, 317L, 321, 321H, 347, 347 H, 904L.

SIZE : 1/2" – 48", DN15 – DN1200

PRESSURE : Sch5 – Sch160, XXS

STANDARDS : ISO, ANSI, JIS, DIN, GB/T12459, GB/T13401, ASME B16.9, SH3408, SH3409, HG/T21635, HG/T21631, SY/T05010

USE : Fitted with flanges. Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc.

Applications

Lap Joint Stub Ends are widely used in piping systems where frequent dismantling and alignment adjustment are required. They are typically used with lap joint flanges to simplify installation, maintenance, and replacement of piping components.

Oil & Gas Pipeline Systems

Petrochemical & Chemical Processing Plants

Power Generation Facilities

Water Treatment & Distribution Systems

Shipbuilding & Marine Pipelines

Industrial Construction & Infrastructure Projects

Swipe to view

Nominal pipe size DN (in.)	Outside Diameter at Bevel	Length	Redius of Fillet		Diameter of Lap
	Outside Diameter at Bevel	Length	A Type	B Type	Diameter of Lap
	D	L	R		G
1/2	21.3	50.8	3.0	0.8	35.0
3/4	26.7	50.8	3.0	0.8	42.9
1	33.4	50.8	3.0	0.8	50.8
11/4	42.2	50.8	4.8	0.8	63.5
11/2	48.3	50.8	6.4	0.8	73.2
2	60.3	63.5	7.9	0.8	91.9
21/2	73.0	63.5	7.9	0.8	104.6
3	88.9	63.5	9.6	0.8	127.0
31/2	101.6	76.2	9.6	0.8	139.7
4	114.3	76.2	11.2	0.8	157.2
5	141.3	76.2	11.2	1.6	185.7
6	168.3	88.9	12.7	1.6	215.9
8	219.1	101.6	12.7	1.6	269.7
10	273.1	127.0	12.7	1.6	323.9
12	323.9	152.4	12.7	1.6	381.0
14	355.6	152.4	12.7	1.6	412.8
16	406.4	152.4	12.7	1.6	469.9
18	457.2	152.4	12.7	1.6	533.4
20	508.0	152.4	12.7	1.6	584.2
24	609.6	152.4	12.7	1.6	692.2
NOTE： 1、THE DIAMETER OF LAP (T) CAN NOT BE SMALLER THAN NOMINAL PIPE SIZE 2、ACCORDING TO THE CLIENTS' REQUIREMENT, THE LAP SURFACE CAN BE MADE WITH CONCENTRIC INDENT SHAFT OR THREADED SHAFT 3、FIT TO sch40 OR THINNER STAINLESS STEEL PIPE TO JOINT 4、JOINT TO THE FLANGE EDGE WHICH PRESCRIBE IN ANSI B16.5 5、PLEADE NOTE CLEAR THE L OR R , IF THERE ARE PECULIAR REQUIREMENTS

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We supply precision-manufactured lap joint stub ends designed for use with lap joint flanges in industrial piping systems. Contact our team today for product specifications, technical assistance, and competitive quotations.

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