Coupling

Stainless Steel Gaskets

The forged fitting coupling is an essential element in piping systems, designed to connect two pipes or tubes securely. Its robust construction ensures a tight seal, preventing leaks and maintaining the integrity of the fluid or gas being transported. This coupling is widely used in diverse industries, including oil and gas, petrochemical, and water treatment.


Crafted from premium-quality forged steel, the coupling offers exceptional durability and resistance to high pressures and extreme temperatures. It conforms to stringent international standards, such as ASTM, ASME, and DIN, ensuring reliable performance and extended service life in demanding industrial environments.


Material Grades :

Material TypeGrades
Carbon SteelASTM A 105, P 5 , P 9 , P 11 , P 12 , P 22 , P 23 , P 91
Stainless SteelASTM / ASME 201, 202, 301, 304, 304L, 310, 310S, 316L, 316TI, 317, 317L, 321, 347, 904L
Duplex & Super DuplexASTM A 182- F51, F53,F55
Nickel200, 201
Monel400, 500
Inconel600, 601, 625, 800, 825
HastelloyC-276

Coupling Specifications:

SpecificationDetails
MaterialForged Steel (e.g., ASTM A105, A350 LF2, A694 F65)
TypeForged Coupling
Temperature Range-50°C to 450°C (-58°F to 842°F) (varies with material)
Pressure RatingUp to 6000 psi (varies with material and design)
StandardsASME, API, ASTM
Sizes1/2" to 24" (varies with material and design)
ApplicationsOil & Gas, Petrochemical, Chemical Processing, Waterworks, HVAC Systems
Production TechniqueForged and Machined from Solid Steel

Dimension Chart :

DNNom. Pipe SizeEnd to End Coupling WOutside Diameter D 3000LbOutside Diameter D 6000LbLength of Thread (Min) BLength of Thread (Min) L2
61/8"3216226.46.7
81/4"3519258.110.2
103/8"3822329.110.4
151/2"48283810.913.6
203/4"51354412.713.9
251"60425714.717.4
321-1/4"67576417.018.0
401-1/2"76647618.019.2
502"86769219.019.2
652-1/2"929210823.629.4
803"10810812725.930.5
1004"12114015927.733.0

Applications of Couplings:

Forged fitting couplings are vital in numerous applications due to their ability to securely connect pipes and maintain the integrity of the fluid or gas being transported. Key areas of application include:

  • Oil and Gas Industry: For connecting pipelines and ensuring reliable transport of oil, gas, and other hydrocarbons under high pressure.
  • Chemical Processing: In pipelines and reactors to handle various chemicals, ensuring safe and leak-proof connections.
  • Water Treatment: In systems where durable and secure pipe connections are critical for water transport and treatment processes.
  • Power Generation: In power plants, especially in high-pressure steam and water systems, to ensure robust connections and safety.
  • HVAC Systems: For connecting various pipes in heating, ventilation, and air conditioning systems, ensuring efficient and leak-free operation.
  • Marine Applications: In shipbuilding and offshore platforms, where reliable and durable pipe connections are essential under harsh marine conditions.