Claber Automatic Drain Valve 3/4" for Underground Systems – 90910

What it is

The Claber 90910 is an automatic drain valve for underground irrigation systems, such as pop-up sprinkler zones. After each watering it lets the water drain out of the buried pipe, so there's no water left inside to freeze and crack the pipe or fittings in winter. It's part of Claber's Rain Jet range for underground systems.

How it works

Fit the valve at the lowest point of the buried pipe, pointing downwards, ideally into a small pocket of gravel so the water can soak away. While the system is running, the water pressure keeps the valve closed and watertight. When the zone switches off and the pressure drops, the valve opens and the pipe drains automatically.

Why it works well

• It drains the system automatically, so there's nothing to remember before the first frost.
• It stays watertight while the system is watering.
• The metal parts are bronze, so it won't corrode underground.
• It's supplied with a 3/4" adaptor, so it suits both 1/2" and 3/4" fittings.

Specification

• Use: automatic draining of underground irrigation pipes.
• Connection: 1/2" (15–21mm) male thread, with a 3/4" (20–27mm) adaptor supplied.
• Materials: bronze metal parts.
• Pack: 1 valve.
• Claber code: 90910.

Use it with

• Claber pop-up sprinklers and Colibri lawn kits.
• Solenoid valves and manifolds for multi-zone lawn systems.
• Our lawn pop-up sprinkler designer to plan your system.

As an Authorised Claber Stockist, we hold Claber spare parts and we're happy to help you plan your system. Call us on 0333 335 6295.