Grooved Flanges
A grooved flange is a transition fitting whose two-piece housing grips the grooved pipe end and connects the line to a flanged valve, pump or device. It gives a flange face without welding to the pipe.
The store range covers 2″–8″. It is used at fire pump outlets and for connecting flanged equipment such as alarm valves, check valves and OS&Y valves to grooved lines.
Main Applications
- Fire pump suction and discharge flanges
- Wet and dry alarm valve connections
- Flanged check valve and OS&Y valve transitions
- Flow meter and water meter connections
- Flanged equipment at header ends
Technical Data
| Type | Grooved flange (two-piece) |
|---|---|
| Size | 2″, 2½”, 3″, 4″, 5″, 6″, 8″ (product range) |
| Housing | Ductile iron GGG 40.3 (manufacturer catalogue) |
| Gasket | EPDM (standard) |
| Bolts and nuts | Galvanized carbon steel (manufacturer catalogue) |
| Connection | Grooved on pipe side, flange on the other |
| Drilling standard | By model (PN16 / ANSI) |
| Working pressure | By model |
Material Options
| Part | Grooved flange |
|---|---|
| Housing | Ductile iron GGG 40.3 |
| Gasket | EPDM (standard) |
| Bolts and nuts | Galvanized carbon steel |
| Finish | Painted (by model) |
Which material? The drilling standard of the mating flange (PN16 or ANSI) must match the grooved flange bolt pattern; state the flange standard of the equipment when ordering.
Advantages
Weld-Free Flange
- No welding on the pipe
Easy Equipment Change
- Valves and pumps can be removed and refitted
Compact Transition
- Short assembly length
System Compatible
- Between grooved line and flanged equipment
Construction and Design Features
- Two-piece flange housing gripping the pipe groove
- Hinge or bolt joint closing the housing
- EPDM gasket between flange face and pipe end
- Bolt holes matching the mating flange
Send the pipe size and the flange standard of the equipment; we will define the right grooved flange.
How to Choose?
- Set the pipe sizeWrite the grooved pipe size.
- Identify the mating flangeFind the PN/ANSI standard of the valve or pump.
- Check the bolt patternConfirm bolt hole size and count match.
- Add the bolt setAllow bolts and nuts for the flange joint.
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 Flange Adaptors
Grooved flange adaptors move a grooved pipeline to a flanged connection.
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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.
Details →
Grooved x Threaded Concentric Reducers
Grooved x threaded concentric reducers have one grooved end and one threaded end and change pipe size.
Details →
Grooved Mechanical Tees
Grooved mechanical tees give a grooved branch through a hole cut in the pipe, without welding.
Details →
Grooved Rigid Couplings
Grooved rigid couplings join grooved pipes with a fixed, solid connection.
Details →Get a quote for your project
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