Threaded Union Manufacturer, Supplier & Exporter

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

Our threaded unions allow pipes to be connected and disconnected repeatedly without rotating either pipe – the essential fitting wherever equipment must be removed for maintenance.

A Threaded Union is a three-piece forged fitting – two thread ends and a central union nut. Manufactured to ASME B16.11 with ground metal-to-metal or O-ring seats, it permits quick assembly and dismantling of piping around pumps, valves and instruments.

Threaded Union

Key Features

Three-piece design: two thread ends plus union nut

Connect / disconnect lines without rotating the pipe

Ground conical metal-to-metal seat for repeatable sealing

Pressure classes 2000#, 3000# and 6000#

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 Union
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 Union from Valtron Forge & Fittings provide reliable performance, mechanical strength, and compliance with international standards, making them suitable for demanding industrial and process piping systems.