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50mm In-Line Demountable Coupling Sight Glass Connector



50mm In-Line Demountable Coupling Sight Glass Connector

This In-Line Demountable Coupling Sight Glass Connector has been designed to work in conjunction with 50mm solvent weld pipe (please view our pipe identification chart for finding your correct pipe size)

The In Line-Sight Glasses are a must in-between filtration chambers, so you can see the flow and quality of water and know which chamber to flush.

In-Line Sight Glasses are also great on flushing ports allowing you to see when the water runs clear saving you time, water and money.

Benefits of having the Demountable Coupling In-Line Sight Glass

The biggest problem with a transparent In-Line Sight Glass is that over a period of time, they need cleaning; with a more conventional solvent weld In-Line Sight Glass, cleaning can be a bit of a problem. The excellent thing about having the demountable sight glass is the fact that when it needs it comes to cleaning, you can simply unscrew the Demountable Coupling and clean it with ease.

What is a Demountable Coupling? Demountable Couplings are used when the need for line equipment such as  (UV, Pump, Filter supply etc.) will need to be removed, whether this be for maintenance or cleaning. Once the chosen fittings/ridged pipe have been installed to the demountable coupling simply a-line the male (Demountable Coupling body) and the female (Retaining Nut) threads together and tighten down. Once tightened the heavy duty E.D.P.M sealing washer will make a superb water tight seal

Demountable Couplings are quick and easy to use, making them perfect for any job, where regular maintenance or cleaning needs to be carried out.

The Demountable Coupling has been designed like a socket/joining bush, allowing for ridged pipe to be solvent welded internally on both the demountable coupling body and the socket

All of our measurements are taken from the ID(internal diameter) of the fitting. The OD(outside diameter) has no relevance to the displayed size of this item. (please view our pipe identification chart to find your correct pipe size)

This In-Line Sight Glass Connector will receive pipe/fittings on either end with a stop located in the middle, ensuring both pieces of pipe/fittings joint have the maximum amount of surface contact to ensure a superb water tight seal.

For use with flexible hose, a hosetail could be joined to either end of the In-Line Sight Glass Connector.

Solvent Weld Fitting (Always use a non-toxic adhesive)


  • In-Line Sight Glass Length (End to End) – 340mm
  • Viewing Port Length (Clear Molding)  – 150mm

Please feel free to ask if you are uncertain 

Additional information

Weight 0.422 kg