Olet fittings (usually called branch connection fittings or outlet fittings) that give an outlet from a larger pipe to a smaller one (or one of comparative size).

Olets are bypass fittings made by leading metal fitting manufacturers like us. Olets offer a substitute method of connecting to the main run and do not require fortification or reinforcement. The olets are pre-molded into the bend of the run pipe. Flat bottom welds are accessible to connect with pipe caps and vessel heads.

The main pipe onto which the branch connection is welded is for the most part referred to as the span gauge or header. The pipeline to which the branch affiliation or association gives a channel is called a branch or outlet measure. Bypass connections come in all sizes, classes, types, holes and classes, in a wide variety of distinctive stainless steel, chrome-molly and amalgam combinations.

Olets are primarily used for branching in high pressure, high temperature applications. The maximum allowable weight pressure of a fitting is the same as that of a straight, solid or seamless connected pipe of supplied material.

Materials and Grades of Olet Pipe Fittings (Weldolets, Threadolets, Sockolets)

1) Stainless Steel Olet Fittings – ASTM/ASME SA 182F GR. UNS 31254 (254SMO) 304, 304L, 304H, 304N, 304LN, 316, 316L, 316H, 316N, 316LN, 309L, 310, 317, 317L

2) Carbon Steel Olet Fittings – ASTM/ASME A105 / A350 LF2, ASME SA105, A694 – F42, F46, F52, F60, F65, F70, A36, A516 GR. 70, 60

3) Alloy Steel Olet Fittings – ASTM/ASME A182 GR. F1/F5/F9/F11/F22/F91

4) Duplex Steel Olet Fittings – ASTM/ASME SA 182F GR. F44, F45, F51, F53, F55, F60, F61. 1.4462

5) Nickel Alloy Steel Olet Fittings – ASTM/ASME SB 256 GR. NICKEL ALLOY 200, NICKEL ALLOY 20, MONEL ALLOY 400, INCONEL ALLOY 600, INCONEL ALLOY 625, INCOLOY ALLOY 800, INCOLOY ALLOY 800H, INCOLOY ALLOY 800HT, INCONEL ALLOY 825, ALLOY 20, HASTELLO C-276, HASTELLO ALLOY C-Y4, HASTELLO C-22, ALLOY 6XN

6) Low temperature pipe olets – A/SA 350 LF2, LF3

Olet fittings are also available in other metals such as titanium, aluminum, bronze, lead, tantalum, zinc, brass, etc.

The application or uses of Olet fittings are used in a wide range of industries. Some of them are

• Energy plants
• water pipes
• refineries
• Food and drinks
• pharmaceutical products
• textiles
• Railways
• Petrochemistry
• Nuclear plants
• sugar mills

Types of Olet Pipe Fittings

1) Bracelet: The bracelet is generally and primarily used to interconnect or associate supported fixtures. Brazolet is the same as a Weldolet, and is an amazing accessory for metal pipes, copper pipes, and iron pipe funnels with brass.

2) Coupolet: Coupolet fittings are intended for use in fire sprinkler/fire protection structures and other light weight raceway applications.

3) Elbolet – Elbolet is used in 90° long radius elbows (can be delivered for short radius elbows) for thermowell and instrumentation affiliations

4) Flexolet – Flexolets resemble Weldolets with minor refinement, ie the flexolet has a straight hole while the Weldole has a reduced hole.

5) Insert Weldolet – Insert Weldolet is the most widely perceived of all branch associations, and is welded onto the outlet pipe.

6) Latrolets – Latrolets are a variety of Weldolets. You must associate it the same way, however these Latrolets make a 45 degree association with the standard pipe instead of 90 degrees.

7) Nipolet – Nipolets is just a mixture of olets with pipe nozzles. These holes work like solder holes or thread holes, but are colleted.

8) Sockolets – Sockolets are, in a general sense, like sockolets and threadolets; in addition to the route that in Sockets there is a single connection suitable for soldering.

9) Sweepolet – Sweepolet is a shaped, basically sharp; Butt weld branch ratio with a low stress riser component for low weights and extended wear life against burnout or burnout.

10) Threadolet – Threadolets look like several olets; the main difference is that this olet is equipped with a female threaded connection.

11) Weldolet – Weldolets or welding olets or welding branch association accessories are the most well-known among all olets. These are most commonly used and arranged as butt weld fittings as these are welded onto the branch pipe.

Manufacturing Standards

ASTM A182 – ASME SA182 – Standard specification

ASME B16.11 – Forged Fittings Plug – Welding and Threading

MSS SP-97 – Integrally Reinforced Forged Bypass Outlet Fittings – Socket Weld, Threaded and Butt Weld Ends