Threaded Half Coupling Manufacturer, Supplier & Exporter

Valtron Forge & Fittings is a leading manufacturer, supplier, stockist, and exporter of premium quality Threaded Half Coupling in India. We offer a comprehensive range designed to meet international standards and the demanding requirements of industrial piping systems.

Our threaded half couplings are welded directly to vessel walls and pipe headers to create small threaded branch connections for instruments, drains and vents.

A Threaded Half Coupling is threaded on one end only; the plain end is welded to the run pipe or vessel. Manufactured to ASME B16.11, it provides a compact, strong outlet for gauge, vent, drain and sampling connections.

Threaded Half Coupling

Key Features

Threaded one end, plain welding end on the other

Ideal for instrument, vent, drain and sampling branches

Pressure classes 2000#, 3000# and 6000# as per ASME B16.11

Forged construction for superior strength and durability

Leak-tight NPT / BSPT / BSPP thread options

Available in all grades of stainless, carbon, alloy and nickel alloys

Sizes from 1/8” NB to 4” NB

Material Used in Manufacturing

  • We manufacture Threaded Fittings in a wide range of materials depending on service conditions and project specifications:
  • Stainless Steel (ASTM A182 F304/304L, F316/316L, F321, F347)
  • Carbon Steel (ASTM A105)
  • Alloy Steel (ASTM A182 F1, F5, F9, F11, F22, F91)
  • Low Temperature Carbon Steel (ASTM A350 LF2 / LF3)
  • Duplex & Super Duplex Stainless Steel (ASTM A182 F51 / F53 / F55)
  • Nickel Based Alloys (ASTM B564 – Monel, Inconel, Incoloy, Hastelloy)
  • All materials comply with standards issued by ASTM International and ASME.

Applications

  • Threaded fittings are ideal for:
  • Low and medium pressure piping systems
  • Instrumentation, sampling and gauge connections
  • Utility lines – air, water, steam and gas services
  • Fire protection and sprinkler systems
  • Oil & gas surface piping where welding is not desirable
  • Plumbing and general industrial piping networks

Standards and Specification

Parameter Specification
ProductThreaded Half Coupling
Manufacturing StandardsASME B16.11, BS 3799, MSS SP-79, MSS SP-83, MSS SP-95, MSS SP-97
Material StandardsASTM A105, ASTM A182, ASTM A350, ASTM B564
International CodesASME, ASTM International
Pressure Classes2000#, 3000#, 6000#
Size Range1/8” NB to 4” NB
Thread TypesNPT (ASME B1.20.1), BSPT, BSPP
End ConnectionThreaded / Screwed (SCRD)
Inspection & TestingPMI Testing, Hardness Test, Impact Test, Hydrostatic Test, Dimensional Inspection, Visual Inspection
CertificationMill Test Certificate (EN 10204 3.1 / 3.2), Third-Party Inspection (TPI)

Why Choose Valtron Forge & Fittings?

  • Precision-cut threads ensuring tight, leak-resistant assembly without welding.
  • Quick installation and easy dismantling for maintenance-friendly systems.
  • High-performance materials for durability and corrosion resistance.
  • Rigorous quality control including thread gauging and hydrostatic testing.
  • Complete range of threaded fittings under one roof with international certification.
  • Threaded Half Coupling from Valtron Forge & Fittings provide reliable performance, mechanical strength, and compliance with international standards, making them suitable for demanding industrial and process piping systems.