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Description 188 Manufacturers
Wyandotte Industries, Inc.
Woolf Aircraft Products, Inc.
Wisconsin Oven Corp.
White Racker Co.
Western States Hardware
Western Enterprises
WeldFit
WEH Technologies Inc.
Viega LLC
Vi-Cas Mfg. Co., Inc.
Universal Polymer & Rubber
Universal Outlets, Inc.

188 Pipe Fitting Manufacturers in 2023

This section provides an overview for pipe fittings as well as their applications and principles. Also, please take a look at the list of 188 pipe fitting manufacturers and their company rankings.

Table of Contents

What Is a Pipe Fitting?

A pipe fitting is a component used to connect different types of pipes.

It is one of the main methods of connecting pipes, but it also serves not only to extend pipes but also to change the direction of routes, branch or join pipes, enlarge or reduce the diameter of pipes, and seal the ends of pipes. Some pipe fittings are removable after connection, while others are not. In terms of ease of maintenance, it is recommended that removable pipe fittings be used for part of the piping.

It is very convenient to use both types of fittings, because while fixing the entire pipe increases its strength, doing so makes it impossible to replace only the faulty part. There are also various shapes, materials, and connection methods. It is necessary to select the appropriate pipe fitting according to the application of the fitting and the type and material of the piping.

Uses of Pipe Fittings

A pipe fitting is a component that connects pipes that transport gases and liquids. Therefore, a pipe fitting is used in facilities that use piping.

Specifically, they are used in water supply facilities, hot water supply facilities, drainage pipes, ventilation pipes, gas piping, fire prevention piping, cold and hot water circulation systems for air conditioning, agricultural water piping, chemical plant piping, and hydraulic piping. In addition to fluid piping, pipe fittings are also used for cable protection in the electric power and telecommunications fields, and are expected to improve construction work efficiency in the future as the use of utility poles is promoted.

Principle of Pipe Fittings

A pipe fitting is generally connected in two ways: flanged and screwed.

1. Flange Method

In the flange method, pipes are connected using a flange, which is a ring of two planes fixed to each other with a fitting in between. Since the fittings are secured to each other via the flanges and tightened with bolts, this method is characterized by high durability. 

2. Screw-in Method

The screw-in method connects pipes by making a cut at the end of the pipe, creating a spiral groove in the groove, and cutting a spiral groove that matches the end of the pipe to be connected. This method is simpler than the flange method and is used for relatively small pipes.

Types of Pipe Fittings

A pipe fitting has a wide variety of shapes and connection methods due to its extremely wide range of applications. In many cases, products from different manufacturers can be connected to each other, but it is important to check for compatibility before use.

The main types of Pipe Fitting are as follows:

  • Socket
    Sockets are used to connect straight pipes of the same diameter with the same external threads.
  • Nipple
    Connects straight pipes of the same diameter with the same internal thread.
  • Coupling
    Directly connects straight pipes of the same diameter without threading.
  • Elbow
    Used to bend the direction of piping. Bending angles include 45°, 90°, and 180°.
  • Bend
    Used to bend the direction of piping. Compared to elbows, bends have a larger radius of curvature.
  • Reducer
    Used to connect straight pipes of different diameters.
  • Cheese
    Pipe Fitting with a T-shape to branch a pipe into a T-shape.
  • Cross
    Pipe Fitting in the shape of a cross, which branches a pipe in four directions.
  • Cap
    A cap is connected to a pipe by placing it over the pipe or by connecting it to the outer thread of the pipe to seal the end of the pipe.
  • Plug
    A plug is connected to a pipe by fitting it into the pipe or connecting it to the inner thread of the pipe and sealing the end of the pipe.

Other Information on Pipe Fittings

1. How to Connect Pipe Fittings

Pipe fitting connection methods include threaded, welded, and flanged.

Threaded type
The pipe fitting is threaded, and the piping person threads it out for use. Since this connection method is removable, it is easy to repair and maintain.

Welded Type
The pipe fitting is inserted into the pipe and welded by insertion welding, or butt-welded by butt-welding the ends of the pipe and fitting against each other. This type of welding is stronger and more reliable than the screwed-in type.

Flange Type
Pipe flanges are connected with a bottle and nut.

Shafting Type
The pipe fitting is inserted into the pipe and welded by insertion is connected by wedging the sleeve of the pipe fitting into the pipe. When using a pipe fitting, the appropriate pipe fitting should be selected based on the shape, connection method, material, and size (pipe diameter) as described above. 

2. Threaded Sealing Material

When using a screw-in pipe fitting, a sealing material is required. Sealant prevents leakage from the joint. There are two types of sealing materials: liquid type and tape type.

In the case of screws, even when fastened, a gap exists between the outer and inner threads. The role of the sealant is to fill the gap at the screw.

List of 188 Pipe Fitting Manufacturers

*Including some distributors, etc.

Sort by Features

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Pipe Fitting Manufacturer Ranking

*Including some distributors, etc.

Ranking as of June 2023 Globally

Derivation Method
Rank Company Click Share
1 East Bay Distributors 1.1%
2 Bonney Forge 1.1%
3 Ohio Pipe, Valve & Fittings, Inc. 0.5%
4 Automated Valve & Equipment Co. 0.5%
5 Koehler Rubber & Supply Co. 0.5%
6 Superior Products, Inc. 0.5%
7 N.T. Ruddock Co. 0.5%
8 Jamtek Enterprises, Inc. 0.5%
9 The Hollaender Mfg. Co. 0.5%
10 Denier James Co. 0.5%
11 Western Enterprises 0.5%
12 Lokring Technology 0.5%
13 United States Plastic 0.5%
14 ERIKS North America 0.5%
15 R.P. Crawford Co., Inc. 0.5%
16 Gibson Stainless & Specialty, Inc. 0.5%
17 MAXPRO Technologies, Inc. 0.5%
18 Morris Coupling Co. 0.5%
19 Great Valley Industries, Inc. 0.5%
20 Colonial Teltek 0.5%
21 Circle Valve Technologies Inc. 0.5%
22 E-Motion, Inc. 0.5%
23 Concord Screen 0.5%
24 Universal Polymer & Rubber 0.5%
25 Lansco Manufacturing 0.5%
26 Oil-Air Products 0.5%
27 Spiral Manufacturing Co., Inc. 0.5%
28 Midway Industrial Supply & Systems 0.5%
29 Superior Industrial Supply 0.5%
30 AutoVac Industrial Vacuum & Air Systems 0.5%
31 Beswick Engineering Co., Inc. 0.5%
32 Emco Industrial Plastics, Inc. 0.5%
33 Aerospace Manufacturing, Inc. 0.5%
34 Metro Hydraulic 0.5%
35 SC Fastening Systems 0.5%
36 Clean Air Company 0.5%
37 Micromold Products, Inc. 0.5%
38 Steel & O'Brien Manufacturing 0.5%
39 Potter Associates, Inc. 0.5%
40 Coronet Parts Mfg. Co., Inc. 0.5%
41 U.S. Rubber Supply Co. 0.5%
42 AMF Industries Inc. 0.5%
43 Umeta of America, Inc. 0.5%
44 Sterlco Sterling Authorized Dist. - M & M Control 0.5%
45 PEP, A Ryan Herco Flow Solutions Company 0.5%
46 Talco, Inc. 0.5%
47 Thermocouple Technology, LLC 0.5%
48 Indventech 0.5%
49 RIX 0.5%
50 IVG Colbachini 0.5%
51 BIO-TECH 0.5%
52 Swagelok 0.5%
53 HAM-LET 0.5%
54 Koganei 0.5%
55 STAUFF 0.5%
56 HellermannTyton 0.5%
57 Takasago Fluidic Systems 0.5%
58 Reading Technologies, Inc 0.5%
59 Omega Engineering 0.5%
60 KITZ SCT 0.5%
61 GEMÜ 0.5%
62 GAT 0.5%
63 Deublin 0.5%
64 BL AUTOTEC 0.5%
65 Clippard 0.5%
66 Nitta Corporation 0.5%
67 Stäubli International AG. 0.5%
68 INFICON 0.5%
69 United Electrical Distributors, UED 0.5%
70 Advanced Pump Co., Inc. 0.5%
71 Oil-Rite Corporation 0.5%
72 G.A. Murdock, Inc. 0.5%
73 Marcuse & Son, Inc. 0.5%
74 Seal Fast, Inc. 0.5%
75 HYSECO, Inc. 0.5%
76 Maxpro South 0.5%
77 Champion Fiberglass, Inc. 0.5%
78 WEH Technologies Inc. 0.5%
79 Bryan Hose & Gasket, Inc. 0.5%
80 Guenther Supply, Inc. 0.5%
81 MillCorp Industrial Sales 0.5%
82 Busada Manufacturing Corporation 0.5%
83 Central Diesel, Inc. 0.5%
84 Petersen Products Co. 0.5%
85 Centec LLC 0.5%
86 Wisconsin Oven Corp. 0.5%
87 J.W. Winco, Inc. 0.5%
88 Hassel Material Handling Co. 0.5%
89 United P & H Supply Co. 0.5%
90 HydraCheck 0.5%
91 PISCO 0.5%
92 M & M Rogness Equipment Co. 0.5%
93 Amtek Tool & Supply 0.5%
94 Southern Metal Fabricators, Inc. 0.5%
95 TORIN Products, Inc. 0.5%
96 Naylor Pipe Co. 0.5%
97 Vi-Cas Mfg. Co., Inc. 0.5%
98 Aluminum Distributing, Inc. d/b/a ADI Metal 0.5%
99 Colonial Engineering, Inc. 0.5%
100 Kenmold North America 0.5%
101 Eagle Stainless Tube & Fabrication, Inc. 0.5%
102 U.S. Titanium Industry Inc. 0.5%
103 PCI ProCal, Inc. 0.5%
104 Beartech Alloys, Inc. 0.5%
105 Interstate Metal Inc. 0.5%
106 Universal Outlets, Inc. 0.5%
107 Latrobe Foundry Machine & Supply Co. 0.5%
108 Appleton Stainless 0.5%
109