What does a PVC union do?
A union joins two sections of pipe but includes a detachable centre connection. This allows the pipework to be separated later without cutting the permanently installed pipe.
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PVC Socket Union 50mm x 50mm - Solvent Weld Irrigation Pipe Fitting
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1477
£14.77
Unit price perEstimated delivery between November 01 and November 03.
This 50mm x 50mm PVC Socket Union is a detachable solvent-weld pipe fitting designed to connect two sections of 50mm metric PVC pipe while allowing the pipework to be separated later for servicing, cleaning or system modification.
Unlike a conventional straight socket, the central threaded union can be unscrewed to separate the two sides of the fitting without cutting the surrounding pipework. This makes it particularly useful around pumps, filters, valves and other components that may require periodic removal or maintenance.
Both ends accept 50mm metric PVC pressure pipe and are designed to be permanently bonded using suitable PVC solvent cement. Once installed, the central union provides the removable connection point.
A practical fitting for professional irrigation, water distribution, horticultural installations, aquaculture and other rigid PVC pipe systems where future access needs to be considered during installation.
Why use a 50mm PVC Socket Union?
- Detachable pipe connection - separates at the central union without cutting the installed pipe.
- 50mm x 50mm connection - designed for joining equal-size 50mm metric PVC pipework.
- Plain socket ends - both sides accept compatible 50mm PVC pipe for solvent-weld installation.
- Ideal for maintenance points - useful wherever equipment may need to be removed in future.
- Rigid PVC construction - durable, lightweight and corrosion resistant.
- Smooth internal bore - helps maintain efficient water movement through the pipe system.
- Reusable union connection - the centre can be disconnected and reassembled while the solvent-weld ends remain permanently installed.
- Professional irrigation fitting - suitable for commercial horticulture, agriculture and water-management installations.
Permanent pipe joints with a removable centre
The advantage of a union is that it combines two different types of connection in one fitting.
The outer sockets are solvent welded permanently to the 50mm PVC pipe. The central section uses a threaded union nut, allowing the two installed pipe sections to be disconnected without disturbing those solvent-welded joints.
This provides a convenient service point within an otherwise permanent rigid pipe installation and can save considerable time when equipment needs to be replaced or pipework altered.
Ideal for irrigation & water-management systems
Socket unions can be installed throughout rigid PVC pipe networks, but they are particularly useful immediately before or after components that are likely to require servicing.
- Commercial irrigation systems
- Nursery and glasshouse water distribution
- Pump installations
- Filtration equipment
- Valve assemblies
- Fertigation systems
- Water-storage and transfer systems
- Aquaculture and aquaponic installations
- Ponds and water features
- General 50mm rigid PVC pipework
Make pumps, filters & valves easier to service
Installing unions around serviceable equipment can make a substantial difference when maintenance is required.
If a pump, filter or valve is installed entirely between permanent solvent-weld joints, removing it later may require the pipe to be cut. Positioning suitable unions around the component creates deliberate separation points instead.
Once the system has been isolated and depressurised, the union can be unscrewed and the relevant section removed. After servicing, the fitting can be reassembled without replacing the surrounding pipework.
Installing a 50mm PVC Socket Union
- Plan the union position before permanently assembling the pipework.
- Cut the 50mm PVC pipe squarely and remove burrs from the cut edges.
- Ensure the pipe and fitting sockets are clean, dry and correctly prepared for solvent welding.
- Check the complete union is correctly orientated before applying solvent cement.
- Use a suitable PVC cleaner and solvent cement according to the manufacturer's instructions.
- Insert the pipe fully into each socket and allow the solvent-weld joints to cure correctly.
- Ensure the union sealing surfaces and seal are clean before assembling the centre connection.
- Tighten the union securely without excessive force.
- Allow the solvent-weld joints to cure fully before pressurising or operating the system.
- Check the completed installation for leaks when the system is commissioned.
50mm metric PVC compatibility
This is a metric 50mm fitting. Compatible 50mm PVC pressure pipe has an outside diameter of 50mm and fits inside the union's solvent-weld sockets.
Metric and imperial pipe sizes should not be assumed to be interchangeable simply because their nominal dimensions appear similar. Check the outside diameter and pipe system before installation.
For the strongest and most reliable joint, use PVC solvent cement and preparation products intended for the pipe and fittings being installed.
50mm PVC Socket Union product details
| Product type | PVC socket union |
|---|---|
| Size | 50mm x 50mm |
| Pipe system | Metric PVC |
| Connection | Plain socket x plain socket |
| Jointing method | Solvent weld / solvent cement |
| Compatible pipe size | 50mm outside diameter metric PVC pipe |
| Material | PVC |
| Union type | Detachable central screw union |
| Primary application | Irrigation and water-management pipework |
| Suitable for | Irrigation, pumps, filters, valves, water distribution, aquaculture and compatible rigid PVC systems |
50mm PVC Socket Union FAQs
Does this union fit 50mm PVC pipe?
Yes. Both socket ends are designed for compatible metric PVC pipe with a 50mm outside diameter.
Are both sides solvent weld?
Yes. This is a plain socket-to-socket union, with both ends designed to be bonded to compatible 50mm PVC pipe using suitable solvent cement.
Can the union be disconnected after installation?
Yes. The socket joints remain permanently bonded to the pipe, while the central screw union can be separated for maintenance or equipment removal.
Where should I install a union in an irrigation system?
Unions are particularly useful next to pumps, filters, valves and other components that may need to be removed for servicing or replacement.
Do I need PVC solvent cement?
Yes. The two socket ends require a suitable PVC solvent-weld system. Follow the cleaner and solvent cement manufacturer's preparation, application and curing instructions.
Can I use this instead of a standard 50mm straight socket?
Yes, where a detachable connection is useful. A standard socket creates a permanent connection, whereas a union adds the ability to separate the pipework later.
Is 50mm the internal diameter of the pipe?
No. In a metric PVC pressure-pipe system, the compatible pipe is normally specified by its outside diameter. A 50mm pipe fits inside the corresponding 50mm socket fitting.
Will 1.5-inch imperial PVC pipe fit this union?
Do not assume that imperial and metric PVC pipe are interchangeable. This fitting is intended for 50mm metric pipe, so check the actual pipe dimensions before installation.
Can it be used in a commercial irrigation installation?
Yes. Detachable PVC unions are commonly used in irrigation and water-distribution systems where reliable pipe connections and future service access are required.
Do I need to cut the pipe to service equipment after fitting a union?
Normally no. Once the system has been safely isolated and depressurised, the central union can be unscrewed to separate the pipe sections while the solvent-weld sockets remain installed.
Should the union be glued together at the centre?
No. Only the plain socket connections to the PVC pipe are solvent welded. The central union is specifically designed to remain detachable.
PVC Socket Union 50mm x 50mm - Solvent Weld Irrigation Pipe Fitting
Please sign in to see pricing
1477
£14.77
Unit price perBack in Stock
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This 50mm x 50mm PVC Socket Union is a detachable solvent-weld pipe fitting designed to connect two sections of 50mm metric PVC pipe while allowing the pipework to be separated later for servicing, cleaning or system modification.
Unlike a conventional straight socket, the central threaded union can be unscrewed to separate the two sides of the fitting without cutting the surrounding pipework. This makes it particularly useful around pumps, filters, valves and other components that may require periodic removal or maintenance.
Both ends accept 50mm metric PVC pressure pipe and are designed to be permanently bonded using suitable PVC solvent cement. Once installed, the central union provides the removable connection point.
A practical fitting for professional irrigation, water distribution, horticultural installations, aquaculture and other rigid PVC pipe systems where future access needs to be considered during installation.
Why use a 50mm PVC Socket Union?
- Detachable pipe connection - separates at the central union without cutting the installed pipe.
- 50mm x 50mm connection - designed for joining equal-size 50mm metric PVC pipework.
- Plain socket ends - both sides accept compatible 50mm PVC pipe for solvent-weld installation.
- Ideal for maintenance points - useful wherever equipment may need to be removed in future.
- Rigid PVC construction - durable, lightweight and corrosion resistant.
- Smooth internal bore - helps maintain efficient water movement through the pipe system.
- Reusable union connection - the centre can be disconnected and reassembled while the solvent-weld ends remain permanently installed.
- Professional irrigation fitting - suitable for commercial horticulture, agriculture and water-management installations.
Permanent pipe joints with a removable centre
The advantage of a union is that it combines two different types of connection in one fitting.
The outer sockets are solvent welded permanently to the 50mm PVC pipe. The central section uses a threaded union nut, allowing the two installed pipe sections to be disconnected without disturbing those solvent-welded joints.
This provides a convenient service point within an otherwise permanent rigid pipe installation and can save considerable time when equipment needs to be replaced or pipework altered.
Ideal for irrigation & water-management systems
Socket unions can be installed throughout rigid PVC pipe networks, but they are particularly useful immediately before or after components that are likely to require servicing.
- Commercial irrigation systems
- Nursery and glasshouse water distribution
- Pump installations
- Filtration equipment
- Valve assemblies
- Fertigation systems
- Water-storage and transfer systems
- Aquaculture and aquaponic installations
- Ponds and water features
- General 50mm rigid PVC pipework
Make pumps, filters & valves easier to service
Installing unions around serviceable equipment can make a substantial difference when maintenance is required.
If a pump, filter or valve is installed entirely between permanent solvent-weld joints, removing it later may require the pipe to be cut. Positioning suitable unions around the component creates deliberate separation points instead.
Once the system has been isolated and depressurised, the union can be unscrewed and the relevant section removed. After servicing, the fitting can be reassembled without replacing the surrounding pipework.
Installing a 50mm PVC Socket Union
- Plan the union position before permanently assembling the pipework.
- Cut the 50mm PVC pipe squarely and remove burrs from the cut edges.
- Ensure the pipe and fitting sockets are clean, dry and correctly prepared for solvent welding.
- Check the complete union is correctly orientated before applying solvent cement.
- Use a suitable PVC cleaner and solvent cement according to the manufacturer's instructions.
- Insert the pipe fully into each socket and allow the solvent-weld joints to cure correctly.
- Ensure the union sealing surfaces and seal are clean before assembling the centre connection.
- Tighten the union securely without excessive force.
- Allow the solvent-weld joints to cure fully before pressurising or operating the system.
- Check the completed installation for leaks when the system is commissioned.
50mm metric PVC compatibility
This is a metric 50mm fitting. Compatible 50mm PVC pressure pipe has an outside diameter of 50mm and fits inside the union's solvent-weld sockets.
Metric and imperial pipe sizes should not be assumed to be interchangeable simply because their nominal dimensions appear similar. Check the outside diameter and pipe system before installation.
For the strongest and most reliable joint, use PVC solvent cement and preparation products intended for the pipe and fittings being installed.
50mm PVC Socket Union product details
| Product type | PVC socket union |
|---|---|
| Size | 50mm x 50mm |
| Pipe system | Metric PVC |
| Connection | Plain socket x plain socket |
| Jointing method | Solvent weld / solvent cement |
| Compatible pipe size | 50mm outside diameter metric PVC pipe |
| Material | PVC |
| Union type | Detachable central screw union |
| Primary application | Irrigation and water-management pipework |
| Suitable for | Irrigation, pumps, filters, valves, water distribution, aquaculture and compatible rigid PVC systems |
50mm PVC Socket Union FAQs
What does a PVC union do?
A union joins two sections of pipe but includes a detachable centre connection. This allows the pipework to be separated later without cutting the permanently installed pipe.
Does this union fit 50mm PVC pipe?
Yes. Both socket ends are designed for compatible metric PVC pipe with a 50mm outside diameter.
Are both sides solvent weld?
Yes. This is a plain socket-to-socket union, with both ends designed to be bonded to compatible 50mm PVC pipe using suitable solvent cement.
Can the union be disconnected after installation?
Yes. The socket joints remain permanently bonded to the pipe, while the central screw union can be separated for maintenance or equipment removal.
Where should I install a union in an irrigation system?
Unions are particularly useful next to pumps, filters, valves and other components that may need to be removed for servicing or replacement.
Do I need PVC solvent cement?
Yes. The two socket ends require a suitable PVC solvent-weld system. Follow the cleaner and solvent cement manufacturer's preparation, application and curing instructions.
Can I use this instead of a standard 50mm straight socket?
Yes, where a detachable connection is useful. A standard socket creates a permanent connection, whereas a union adds the ability to separate the pipework later.
Is 50mm the internal diameter of the pipe?
No. In a metric PVC pressure-pipe system, the compatible pipe is normally specified by its outside diameter. A 50mm pipe fits inside the corresponding 50mm socket fitting.
Will 1.5-inch imperial PVC pipe fit this union?
Do not assume that imperial and metric PVC pipe are interchangeable. This fitting is intended for 50mm metric pipe, so check the actual pipe dimensions before installation.
Can it be used in a commercial irrigation installation?
Yes. Detachable PVC unions are commonly used in irrigation and water-distribution systems where reliable pipe connections and future service access are required.
Do I need to cut the pipe to service equipment after fitting a union?
Normally no. Once the system has been safely isolated and depressurised, the central union can be unscrewed to separate the pipe sections while the solvent-weld sockets remain installed.
Should the union be glued together at the centre?
No. Only the plain socket connections to the PVC pipe are solvent welded. The central union is specifically designed to remain detachable.
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1477
£14.77
Unit price per