Pipe Fittings

PIPE FITTING COUPLING

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Stainless Steel Coupling Manufacturer and Exporter

Mcneil Instruments Inc. is the Best Pipe Fittings Couplings manufacturer, Supplier, and Exporter in India. In piping or plumbing, a pipe coupling is a very short length of pipe or tube with socket or female pipe threads at one or both ends that enables the connection of two pipes or tubes of the same size or various sizes. Pipe fittings called couplings are used to expand or end pipe runs. Changes in pipe capacity are also made using these fittings. It can also be used to fix a pipe that is damaged or dripping.

We bring forth for our patrons a wide assortment of Forged Pipe Fitting Coupling that is manufactured using optimum grade raw material, which is sourced from the most certified vendors in the industry. In addition to this, our team of experienced members uses the latest technology and machinery for the fabrication of these products as per the detailed specifications of the clients. Offered range can thus, be availed in various sizes, grades, and other dimensions.

Coupling Pipe Fitting Specifications

Here is a detailed table showing the specifications for a coupling pipe fitting:

Specification AspectDescription
StandardASTM A182, ASTM A403, ASME B16.9, ASME B16.11, MSS SP-79, etc.
Material Grade304, 304L, 316, 316L, 321, 347, 310S, etc.
TypeFull Coupling, Half Coupling, Reducing Coupling
Size Range1/8″ to 4″ (DN 6 to DN 100)
Pressure RatingClass 2000, 3000, 6000, 9000
End ConnectionsThreaded (NPT/BSP), Socket Weld
DimensionsAs per ASME B16.11 or other applicable standards
Wall ThicknessAs per applicable standards (e.g., SCH 40, SCH 80, etc.)
Surface FinishPlain, Pickled, Sand Blasted, or Custom Finish
Testing RequirementsHydrostatic test, Nondestructive Examination (NDE), etc.
CertificationMill Test Certificate (MTC), EN 10204 3.1/3.2
MarkingSize, Material Grade, Heat Number, Manufacturer’s Name, Standard
Special RequirementsSpecific tolerance, straightness, and ovality as required
Stainless Steel Threaded Coupling:
  • Standard : ASTM / ASME A/SA 182
  • Grade: F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.
Carbon Steel Threaded Coupling:
  • Standard : ASTMA 105/ A694/ A350 LF3/ A350 LF2.
  • Grade : F42, F46, F52, F56, F60, F65, F70.
Alloy Steel Threaded Coupling :
  • Standard: ASTM A182
  • Grade : F1, F5, F9, F11, F22, F91.
Threaded Coupling Specification
  • Size: 1/4? to 4?
  • Dimensions: ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799
  • Form: Threaded / Screwed Coupling, Threaded Forged Coupling.
  • Type: Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT.
  • Production Grades: Stainless Steel, Alloy Steel, Duplex, Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel.
  • Value Added Services: Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering
  • Pressure Class: 3000 LBS, 6000 LBS, 9000 LBS

Coupling Pipe Fittings Sizes

Here is a detailed table listing the sizes for coupling pipe fittings:

Nominal Pipe Size (NPS)Outside Diameter (OD) of PipeCoupling Length (Full)Coupling Length (Half)End Connection Type
1/80.405″1.13″0.75″Threaded (NPT/BSP), Socket Weld
1/40.540″1.50″0.94″Threaded (NPT/BSP), Socket Weld
3/80.675″1.69″1.00″Threaded (NPT/BSP), Socket Weld
1/20.840″1.88″1.13″Threaded (NPT/BSP), Socket Weld
3/41.050″2.25″1.25″Threaded (NPT/BSP), Socket Weld
11.315″2.63″1.50″Threaded (NPT/BSP), Socket Weld
1 1/41.660″2.88″1.75″Threaded (NPT/BSP), Socket Weld
1 1/21.900″3.25″2.00″Threaded (NPT/BSP), Socket Weld
22.375″3.75″2.25″Threaded (NPT/BSP), Socket Weld
2 1/22.875″4.25″2.50″Threaded (NPT/BSP), Socket Weld
33.500″5.00″2.75″Threaded (NPT/BSP), Socket Weld
44.500″6.00″3.00″Threaded (NPT/BSP), Socket Weld

Explanation of Terms:

  • Nominal Pipe Size (NPS): This is the standard designation for the size of the pipe.
  • Outside Diameter (OD) of Pipe: The actual outer diameter of the pipe.
  • Coupling Length (Full): The length of a full coupling, which connects two pipes end-to-end.
  • Coupling Length (Half): The length of a half coupling, which connects a pipe to a fitting or other component.
  • End Connection Type: The type of connection at the ends of the coupling, which can be threaded (NPT/BSP) or socket weld.

These dimensions are typical for standard coupling pipe fittings and may vary slightly depending on the specific standards or manufacturer.

We manufacture and export good quality coupling pipe fittings that are designed to connect two pipes seamlessly, ensuring a secure and leak-proof joint. Our coupling fittings are available in a variety of materials, including carbon steel, stainless steel, copper, brass, PVC, and more, catering to diverse industrial and commercial applications. With a commitment to precision engineering and rigorous quality control, our products meet international standards and provide reliable performance in even the most demanding environments. Whether for plumbing, irrigation, or industrial pipelines, our coupling pipe fittings are trusted worldwide for their durability, strength, and ease of installation.

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  • Durable
  • High tensile strength
  • Longer service life
  • Minimal maintenance
Mcneil part no.Equivalent Part no. Type 1Equivalent part no Type 2NPT MALE PIPE SIZE PØ EBODY HEX FL
1N-PHC———–1-1FHC1/160.251/20.75
2N-PHC-2-HCG2-2FHC1/80.349/160.81
4N-PHC-4-HCG4-4FHC1/40.453/41.19
6N-PHC-6-HCG6-6FHC3/80.597/51.31
8N-PHC-8-HCG8-8FHC1/20.731-1/161.56
12N-PHC-12-HCG12-12FHC3/40.941-1/41.62
16N-PHC-16-HCG16-16FHC11.171-5/82
20N-PHCSS-20-HCG20-20FHC1-1/41.52-1/82.38
24N-PHCSS-24-HCG24-24FHC1-1/21.732-3/82.62
32N-PHCSS-32-HCG———-22.222-7/82.62

Monel :
Grade: Monel 400, Monel K500, Monel R-405
Nickel :
Grade: Nickel 200, Nickel 201
Inconel :
Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
Incoloy :
Grade: Incoloy 800, Inconel 800H, 800HT
Hastalloy :
Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
Titanium :
Grade: Gr1, Gr2, Gr3, Gr5, Gr7, Gr11
Stainless Steel :
Grade: ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L, 304H, 316H, 316/316L, 321, 330, 347, 309/S, 310/S, 317/L, 333, 410/S, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Carbon Steel :
Grade: ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70
Duplex Steel:
Grade: ASTM / ASME A/SA 182 UNS F44, F45, F51, F53, F55, F60, F61
Alloy Steel:
Grade : ASTM SA 182 – E25, E26, E27, E28, E29B, E30B, E39B, E40B, E36B, E36C, E41B, AISI4130, AISI4140, AISI4340, 42CRMO4, 16MNCR5, 20MNCR5, 21CrMoV57, EN353, EN354, F11, F22, F91, F9, P11, P22, P91, P9, P5, P92, EN42J, EN8, EN19