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Product Description
Pipe Couplings are essential pipe fittings used to connect two lengths of pipe or to link a pipe with another component such as a valve, nipple, or instrument. Couplings are available in full and half types, and can be manufactured in carbon steel, stainless steel, malleable iron, or forged steel, depending on application needs.
Full Coupling:
Half Coupling:
A Half Coupling has one threaded end, while the other end is plain or welded into a larger piping system or tank wall. It's commonly used for branch connections or where a smaller line joins into a larger one.
| Size | 1/8"-6" | ||||||||||
| Standard | ASTM A733 | ||||||||||
| Wall thickness | STD/SCH40, SCH80/XS, SCH160, XXS | ||||||||||
| End | Plain end or Thread(NPT/BSP) end, TOE,TBE, POE,BBE,PBE,PE,BE | ||||||||||
| Length | 3/4"-24"; 19mm-500mm; Or as per customer's request | ||||||||||
| Process | seamless or ERW | ||||||||||
| Surface | Sand blast, black, anti-rust oil, HDG(hot dip galv. or eletric galv.) | ||||||||||
| Material | Carbon steel: A106, A53, A333 Gr6 | ||||||||||
| Pipeline steel: API 5l Gr B, X46, X52, X56,X60,X65, X70 | |||||||||||
| Stainless steel: 304/304L, 316/316L | |||||||||||
| Duplex stainless steel: UNS31803 | |||||||||||
| Nickel alloy: inconel600, inconel625 | |||||||||||
| Cr-Mo alloy steel: P11, P22 , P5, P9, P91 | |||||||||||
| Application | Petrochemical industry;aviation and aerospace industry;pharmaceutical industry,gas exhaust; power plant;ship building; water treatment, etc. | ||||||||||
Parameter data
| Carbon Steel Pipe Nipple Medium/Heavy,Welded/Seamless | ||||||||||||||||||
| Pipe size | Pipe O.D | Length Close | Pipe Nipple Lengths (mm) | |||||||||||||||
| mm | mm | mm | ||||||||||||||||
| 6 | 10.3 | 19 | 30 | 40 | 50 | 60 | 80 | 100 | 120 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 8 | 13.7 | 27 | 30 | 40 | 50 | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 10 | 17.1 | 28 | 30 | 40 | 50 | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 15 | 21.3 | 37 | x | 40 | 50 | 60 | 80 | 100 | 4/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 20 | 26.7 | 39 | X | 40 | 50 | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 25 | 33.4 | 46 | X | X | 50 | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 32 | 422 | 51 | X | x | 50 | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 40 | 48.3 | 51 | X | x | 50 | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 50 | 60.3 | 60 | x | x | X | 60 | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 65 | 76.1 | 69 | x | x | X | x | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 80 | 88.9 | 75 | x | x | X | X | 80 | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 100 | 114.3 | 87 | X | X | X | X | x | 100 | 41/2 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 125 | 141.3 | 96 | x | x | x | x | x | X | 120 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
| 150 | 168.3 | 96 | x | x | x | x | x | x | 120 | 150 | 180 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
Production process
 |  |
| Cutting | CNC processing |
 |  |
| Threading | Printing |
| British Standard Steel Threaded Pipe Fittings | ||||||||||||
| The standard for steel threaded pipe fittings is EN 10241. The pipe threads follow the BSP standard, ISO 7-1. Based on wall thickness, steel threaded pipe fittings can be classified into medium-thickness steel threaded fittings and heavy-thickness steel threaded fittings. According to surface treatment, they can be categorized as: 1、Hot-dip galvanized steel threaded fittings 2、Electro-galvanized steel threaded fittings 3、Black steel threaded fittings 4、Sandblasted plain steel threaded fittings | ||||||||||||
