PPRC Weld-End Conical Unions

A PPR weld union is a fitting with both ends welded to PP-R pipe that lets the line be dismantled by opening the nut in the middle.
It is used to create maintenance points in front of pumps, filters and devices and on PP-R lines in boiler rooms. It is supplied from Ø20 to Ø90 mm.
Main Applications
- Pump and booster set maintenance points
- Filter and treatment unit separation
- PP-R lines in boiler rooms
- Manifold connections
- Meter groups
Technical Data
| Fitting type | Weld union (two weld ends + nut) |
|---|---|
| Material | PP-R ends, nut depending on model |
| Sizes | Ø20, 25, 32, 40, 50, 63, 75, 90 mm (product range) |
| Weld ends | Socket fusion sockets |
| Sealing | Taper seat or gasket (depending on model) |
| Pressure and temperature | Depending on model and application class |
| Threaded taper union | 20 × 1/2″ – 63 × 2″ (product range) |
| Compatibility | PP-R pipes of the same diameter |
Material Options
| Part | PPR (PP-R) | U-PVC | Brass |
|---|---|---|---|
| Body | Polypropylene random copolymer | Rigid PVC | Brass CW617N (similar manufacturer sheet) |
| Connection | Socket fusion welding | Solvent cement or thread | Thread |
| Hot water | Suitable (depending on application class) | Not suitable | Suitable |
| Threaded transition | Brass threaded insert (depending on model) | Plastic or brass thread | Direct thread |
| Use | Hot and cold domestic water, heating | Cold clean water, chemicals | Water, heating, air |
Which material? A weld union allows removal on a PP-R line without cutting pipe; threaded types connect the PP-R line detachably to metal equipment.
Advantages
Maintenance Point on the Line
- Separated by opening the nut
All-Plastic Line
- No metal parts needed (depending on model)
Wide Size Range
- From Ø20 to Ø90 mm
Reusable
- Retightened after maintenance
Construction and Design Features
- Body with two weld ends and a nut
- Taper or gasketed seat (depending on model)
- PP-R ends
- Detachable set
Send the pipe size, type (welded / threaded) and quantity; we will confirm PPR unions from stock.
How to Choose?
- Define the maintenance pointPlan a union before pumps and filters.
- Choose the typeUse welded for PP-R to PP-R, threaded for metal equipment.
- Read the sizeDetermine the pipe outside diameter.
- Protect the nut when weldingFit the nut the right way round before welding.
Complementary Products
Why ORFA?
Other PPRC Fittings

PPRC 45° Elbows
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PPRC Crossover Bends
PPRC crossover bends are curved fittings used to pass over another pipe on PPRC lines.
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PPRC Double Pipe Clips
PPRC double pipe clips fix two PPRC pipes side by side to a wall or support.
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PPRC Male Threaded Elbows
PPRC male threaded elbows turn a PPRC pipe into a male threaded connection at a right angle.
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PPRC Male Threaded Plugs
PPRC male threaded plugs close female threaded outlets temporarily or permanently.
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PPRC Male Threaded Swivel Unions
PPRC male threaded swivel unions connect a PPRC pipe to a male threaded fitting in a removable way.
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PPRC Male Threaded Adaptors
PPRC male threaded adaptors move a PPRC pipe to a male threaded connection in a straight line.
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PPRC Male Threaded Tees
PPRC male threaded tees are used to take a male threaded branch off a PPRC line.
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PPRC Elbows
PPRC elbows are fusion-welded fittings that change direction by 90 degrees on PPRC pipelines.
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PPRC Swivel Elbows
PPRC swivel elbows can be turned during fitting and move a PPRC line to a threaded connection.
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PPRC Female Threaded Elbows
PPRC female threaded elbows turn a PPRC pipe into a female threaded connection at a right angle.
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PPRC Female Threaded Swivel Unions
PPRC female threaded swivel unions connect a PPRC pipe to a female threaded fitting in a removable way.
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PPRC Female Threaded Adaptors
PPRC female threaded adaptors move a PPRC pipe to a female threaded connection in a straight line.
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PPRC Female Threaded Tees
PPRC female threaded tees are used to take a female threaded branch off a PPRC line.
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PPRC Reducing Tees
PPRC reducing tees are fusion-welded fittings used to take a smaller branch off a PPRC line.
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PPRC End Caps
PPRC end caps are used to close the ends of PPRC pipes by fusion welding.
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PPRC Welding Machines and Tools
PPRC welding machines and tools are used to heat-fuse, cut and prepare PPRC pipes and fittings.
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PPRC Stub Ends
PPRC stub ends prepare the end of a PPRC pipe for a flanged connection.
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PPRC Couplers
PPRC couplers join two PPRC pipes in a straight line by fusion welding.
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PPRC Reducers
PPRC reducers are fusion-welded fittings used to change pipe size on PPRC lines.
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PPRC Tees
PPRC tees are fusion-welded fittings that split flow in three directions on PPRC pipelines.
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PPRC Single Pipe Clips
PPRC single pipe clips fix a PPRC pipe to a wall or support.
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PVC Tank Connectors
PVC tank connectors are used to take a sealed pipe outlet through the wall of a plastic tank.
Details →Get a quote for your project
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