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Threaded Fittings

Threaded Union

Precision-forged Threaded Unions designed for secure pipe connections, convenient assembly and disassembly, and reliable performance in small-bore industrial and process piping syste

Product Type:

Forged Threaded Union / Screwed Union

Size Range:

1/4" NB to 4" NB

Standards:

ASTM A182 / ASTM SA182

Pressure Class:

2000 LBS, 3000 LBS, 6000 LBS & 9000 LBS

Application:

Small-Bore, Industrial & Process Piping

About This Product

Threaded Union

GS MetalFit manufactures and supplies forged Threaded Unions designed for connecting sections of small-diameter piping where convenient assembly and disassembly are required. A threaded union provides a practical connection arrangement that allows piping sections to be separated without rotating the connected pipes.

Threaded Unions are suitable for piping systems requiring a secure threaded connection along with easier installation, maintenance and removal. They are available in different configurations and thread types to suit specific piping requirements.

GS MetalFit Threaded Unions are available in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloy and copper-nickel materials. Products can be supplied in different sizes, pressure classes, thread configurations and material grades according to specified project requirements.

Technical Specifications

Size
1/4" NB to 4" NB
Standards
ASTM A182 / ASME SA182
Dimensions
ASME B16.11, MSS SP-79, MSS SP-95, MSS SP-83, MSS SP-97, BS 3799
Pressure Class
2000, 3000, 6000 & 9000 LBS
Connection Type
Threaded / Screwed
Thread Type
NPT, BSP, BSPT
Configuration
Union, Union Male / Female
Product Forms
Forged Threaded Union, Forged Screwed Union, Threaded Union, Screwed Union, Male Union, Female Union, Stainless Steel Threaded Union, Carbon Steel Threaded Union, Alloy Steel Threaded Union, Duplex Steel Threaded Union, Super Duplex Steel Threaded Union, Nickel Alloy Threaded Union and Copper-Nickel Threaded Union
Compliance
NACE MR0175 / ISO 15156, where specified and applicable

Materials & Grades

Stainless Steel Forged Threaded Union

ASTM A182 F304, F304L, F316L, F304H, F309S, F309H, F310S, F310H, F316Ti, F316H, F316LN, F317, F317L, F321, F321H, F347, F347H and F904L. ASTM A312 / A403 TP304, TP304L, TP316 and TP316L grades can also be supplied where applicable.

Alloy Steel Forged Threaded Union

ASTM / ASME A182, A335 and A234 grades including P1, P5, P9, P11, P12, P22, P23 and P91. Applicable A691 grades including 1 CR, 1¼ CR, 2¼ CR, 5 CR, 9 CR and 91 can also be supplied according to project requirements.

Carbon Steel Forged Threaded Union

ASTM / ASME A105, A350 LF2, A53 Grade A & B, A106 Grade A, B & C, API 5L Grade B, X42, X46, X52, X60, X65 & X70, and applicable ASTM / ASME A691 grades.

Duplex & Super Duplex Steel Forged Threaded Union

ASTM A182 F51, F53, F55, UNS S31803, S32205, S32550, S32750, S32760 and S32950.

Nickel Alloy Forged Threaded Union

Applicable ASTM / ASME nickel alloy specifications including SB336, SB564, SB160, SB163 and SB472. Available nickel alloy grades include Nickel 200, Nickel 201, Monel 400, Alloy 20, Inconel 825, Inconel 600, Inconel 601, Inconel 625 and Hastelloy C276.

Copper & Copper-Nickel Forged Threaded Union

ASTM / ASME SB111 and SB466 materials including UNS C10100, C10200, C10300, C10800, C12000, C12200, C70600 and C71500. Copper-Nickel grades include Cu-Ni 90/10 and Cu-Ni 70/30.

Applications

01

Small-Bore Piping Systems

02

Industrial Piping Systems

03

Process Piping

04

Chemical & Petrochemical Applications

05

Oil & Gas Systems

06

Power Generation

07

Instrumentation & Utility Piping

08

General Engineering & Fabrication

Why Choose GS MetalFit?

Wide Material Selection

Threaded Unions are available in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloy and copper-nickel materials.

Multiple Pressure Classes

Products are available in Class 2000, 3000, 6000 and 9000 LBS configurations according to specified requirements.

Convenient Assembly & Disassembly

Threaded Union configurations provide a practical connection solution where piping sections may need to be separated for installation or maintenance.

Multiple Thread Options

Threaded connections can be supplied with NPT, BSP and BSPT thread configurations as required.

Project-Based Specifications

Sizes, material grades, dimensions, pressure classes and configurations can be supplied according to specified project requirements.

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