U-PVC Fittings

U-PVC Solvent Weld Unions

A U-PVC solvent socket union is a union-type fitting with both ends solvent welded to rigid PVC pipe that allows the line to be dismantled by opening the nut in the middle.

It is used before pumps, filters, dosing units and valves so that maintenance can be done without cutting the solvent-welded line. Size and seal material are supplied depending on the model.

Detachableon solvent-welded lines

Nutunion connection

U-PVCcorrosion-free body

Sizedepending on model, please ask

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Main Applications

Pump inlets and outlets
Pool filter connections
Dosing unit lines
Maintenance points before valves
Treatment unit separation

Technical Data

Fitting type	Solvent socket union
Material	U-PVC body and nut (depending on model)
Connection	Two solvent ends + nut
Sealing	O-ring seal (depending on model)
Sizes	Depending on model, please ask
Pressure class	Depending on model
Seal material	Per fluid (depending on model)
Similar part	U-PVC solvent taper union

Material Options

Part	U-PVC (pressure)	PVC drainage	PPR
Body	Unplasticised rigid PVC	PVC	PP-R
Connection	Solvent cement or thread	Gasketed socket or solvent cement	Socket fusion welding
Pressure	Pressure lines (PN depending on model)	Non-pressure (gravity) lines	Pressure lines
Hot water	Not suitable	Not suitable (depending on model)	Suitable
Use	Cold clean water, pools, chemicals	Soil and rainwater	Hot and cold domestic water

Which material? When the two halves of the union are solvent welded, the nut must already be slid onto the pipe; on chemical lines the O-ring material should be chosen for the fluid.

Advantages

Maintenance Point on the Line

Removed by opening the nut

All-Plastic

Corrosion-free (depending on model)

Reusable

Retightened after maintenance

Suited Before Equipment

Pumps and filters

Construction and Design Features

Two solvent socket half-bodies
Union nut
O-ring seat
Detachable set

Send the pipe size, fluid and quantity; we will confirm a suitable U-PVC union and seal choice.

How to Choose?

Choose the maintenance pointDefine the spot before the pump, filter or valve.
Measure the sizeMeasure the outside diameter of the U-PVC pipe.
Slide the nut on firstFit the nut onto the pipe before cementing.
Choose the seal materialUse an O-ring suited to the fluid.

Complementary Products

U-PVC Fittings Solvent Weld U-PVC Fittings Booster Sets & Hydrophores Brass Threaded Ball Valves Union Gaskets Flanged Y-Type Strainers

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.

Technical ConsultancyGuidance for unions on size and seal.

Delivery from StockStock of U-PVC unions is confirmed quickly.

Spare PartsUnion Gaskets for spare union O-rings.

In This Group

Other U-PVC Fittings

Threaded U-PVC Fittings

Threaded U-PVC fittings are corrosion-resistant plastic fittings installed with threaded joints on rigid PVC lines.

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Solvent Weld U-PVC Fittings

Solvent weld U-PVC fittings join rigid PVC pipes permanently and tightly with solvent cement.