• Corporate vision to become the pipeline industry Toyota
  • Corporate mission to enhance the quality level of Chinese manufacturing
  • Business goals domestic industry first
Threaded Half Coupling

Threaded Half Coupling

  • Introduction:Haihao Group can manufacture threaded coupling(full and half pipe couling) with carbon steel,
  • stainless steel,alloy steel in high quality.
  • Email:sales@haihaopipe.com

Pipe coupling (Pipe socket) is a kind of pipe fitting to joint two pipes or fittings, and the body is like a short pipe with a socket on one end or both ends. The connection methods could be Thread.

Commanly pipe coupling is devided into two types:Full Threaded Pipe Coupling,Half Threaded Pipe Coupling.

Threaded Coupling

Threaded Half Pipe Coupling ASME B16.11-Haihao Group

Half threaded pipe coupling (pipe socket) means a steel coupling which only has one thread end , another end of the coupling should be butt welding end .The thread end could be NPT or BSP standard thread. The butt welding end could be a plain end or a bevel end . It could be the connection between a pipe of male thread end and a pipe of no thread end.

Threaded Half Coupling

 Size  1/8”- 12” in Class 3000 and 1/8”- 8”in Class 6000

Also available in 1/8 – 8” in 150 # and 1/8”- 4” in Class 9000 and in special lengths

 Threads  American National Standard Taper Pipe Threads

NPT (ANSI/ASME B1.20.1-1983)

Also available in other thread forms: NPTF, NPSC, NPSM, NGT,

SAE, BSPT, BSPP and in any combination.

Left hand threads available upon request.

 Specification  ASME B16.11 for Class 3000 and 6000 only
 Materials  Carbon steel:

ASTM A234 WPB, S235,P235GH,ST35.8,ST37,SS400,ST20,C20,Q235

Alloy steel:

ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP91-WP9

Stainless steel:

ASTM/ASME A403 WP 304-304L-304H-304LN-304N

ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti

ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

Low-temperature steel:


High performance carbon steel:


 Package  wooden case, pallet or as customers’ requirement

Dimensions Threaded Half Couplings – 1/8 to 4 – 3000,6000 LBS – ASME B16.11

(All dimensions are in inches • Weights are based on Carbon Steel)

threaded coupling

Haihao group have a nearly 30 years pipe fittings and flanges(Threaded,Buttweld,Socket weld)  manufacture experience. We can supply suitable products as per your request. Besides these standard products, we also can supply customized pipe fittings and flanges accordingly.

We sincerely welcome customers domestic and abroad to visit us for cooperation and development.