Grooved Flange Adaptors
A grooved flange adapter is a one-piece transition joined to grooved pipe with a coupling at one end and bolted to a mating flange at the other. It removes the need for a separate spool and welded flange between a grooved system and flanged equipment.
The store range covers 2″–8″ plus a 76.1 mm option for 2½” lines. It is used where pumps, tanks, heat exchangers and flanged valves connect to grooved piping.
Main Applications
- Pump suction and discharge nozzles
- Pressure tank and booster set connections
- Heat exchanger and chiller nozzles
- Flanged fire valve transitions
- Equipment ends that must be removable
Technical Data
| Type | Flange adapter (groove × flange) |
|---|---|
| Size | 2″, 2½” (76.1 mm), 3″, 4″, 5″, 6″, 8″ (product range) |
| Body | Ductile iron GGG 40.3 (manufacturer data) |
| Grooved end | Joined with a coupling |
| Flange end | Bolted to mating flange (drilling by model) |
| Gasket | Coupling gasket on grooved end; flange gasket on flange side |
| Finish | Painted (by model) |
| Working pressure | By model |
Material Options
| Part | Flange adapter |
|---|---|
| Body | Ductile iron GGG 40.3 |
| Grooved end sealing | EPDM gasket of the coupling |
| Flange sealing | Flange gasket (separate) |
| Finish | Painted (by model) |
Which material? Unlike a grooved flange, the adapter carries both the groove and the flange face on its own body; a coupling is needed on the pipe side and a separate flange gasket on the flange side.
Advantages
One-Body Transition
- No spool or welded flange needed
Easy Equipment Service
- Pumps and tanks removed quickly
2½” Option
- For 76.1 mm pipe
Weld-Free
- No hot-work permit
Construction and Design Features
- One-piece cast adapter body
- Coupling groove on one end
- Flange face with bolt holes on the other end
- Flat seating face for the flange gasket
Write the pipe size and mating flange standard; we will quote the adapter with the coupling and flange gasket.
How to Choose?
- Write the pipe sizeCheck the 76.1 mm option on 2½” lines.
- Find the flange standardIdentify the equipment’s PN or ANSI drilling.
- Add the couplingAllow one rigid coupling for the grooved end.
- Complete the flange setAdd the flange gasket and bolt set to the list.
Complementary Products
Why ORFA?
Other Grooved Pipe Fittings
Threaded Mechanical Tees
Threaded mechanical tees are used to take a threaded branch off a pipeline without welding.
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Reducing Couplings
Reducing couplings join two grooved pipes of different sizes.
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U-Bolt Mechanical Tees
U-bolt mechanical tees are fixed to the pipe with a U-bolt and give a branch without welding.
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Grooved 45° Elbows
Grooved 45° elbows change direction by 45 degrees on grooved pipelines and are joined with couplings.
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Grooved 90° Elbows
Grooved 90° elbows change direction by 90 degrees on grooved pipelines and are joined with couplings.
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Grooved Flexible Couplings
Grooved flexible couplings join grooved pipes while allowing some angular movement and vibration.
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Grooved Equal Tees
Grooved equal tees split flow in three directions of the same size on grooved pipelines.
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Grooved Flanges
Grooved flanges connect a grooved pipe end to a flanged valve or piece of equipment.
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Grooved Crosses
Grooved crosses split flow in four directions on grooved pipelines.
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Grooved Caps
Grooved caps close the end of a grooved pipe and are joined with a coupling.
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Grooved Concentric Reducers
Grooved concentric reducers change pipe size on grooved lines along the same centre line.
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Grooved x Threaded Concentric Reducers
Grooved x threaded concentric reducers have one grooved end and one threaded end and change pipe size.
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Grooved Mechanical Tees
Grooved mechanical tees give a grooved branch through a hole cut in the pipe, without welding.
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Grooved Rigid Couplings
Grooved rigid couplings join grooved pipes with a fixed, solid connection.
Details →Get a quote for your project
Our sales team will prepare the best solution for your needs.