Stub End and Lap Joint Flange: How the Pair Works and How to Specify It
How a stub end and lap joint flange work as a pair, how they compare with slip-on and weld neck flanges, and what to put in the RFQ.
HuaboPipe was founded in 2004, with the company in Wenzhou, the factory at No. 102 Longqing Road, Nanmingshan Subdistrict, Liandu District, Lishui, Zhejiang (Shuige Industrial Zone), and a warehouse in Longwan, Wenzhou. HuaboPipe manufactures butt-weld fittings and forged flanges; stainless steel pipe and valves are supplied to match the project. WhatsApp +86 15210578298, email lucas@hbpipe.com.
How a stub end and lap joint flange work as a pair, how they compare with slip-on and weld neck flanges, and what to put in the RFQ.
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304 vs 316L vs duplex 2205 fittings: choose by medium, temperature and drawing — not by grade rank alone. HuaboPipe supplies all three to order.
One list for stainless butt weld fittings and forged flanges from HuaboPipe. Matching pipe and valves on request. EN 10204 3.1 MTRs. Email lucas@hbpipe.com.
HuaboPipe forges stainless flanges to EN 1092-1 and to drawing: WN, SO, LWN, blind, lap joint, up to DN3000. Grades 304, 316L, 2205, 2507. Email lucas@hbpipe.com.
HuaboPipe, founded 2004: company in Wenzhou, factory in Lishui, Zhejiang. Wenzhou Longwan stock for regular sizes. Butt weld fittings and forged flanges. Standard sizes DN15 to DN1200; larger sizes are made to drawing, up to DN3000.
DN1000 and above stainless elbows, tees, reducers, caps and forged flanges from HuaboPipe, up to DN3000. Quoted from drawing. Email lucas@hbpipe.com.
HuaboPipe stocks duplex 2205 and 2507. Cold formed butt weld fittings and forged flanges, standard sizes DN15 to DN1200 (larger to drawing, up to DN3000), with EN 10204 3.1 MTRs and PMI. Inquire at lucas@hbpipe.com.
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