Waterra D-13 Foot Valve – Low Flow
The Waterra D-13 Foot Valve is made of acetal thermoplastic (Delrin) and has a 1/2 inch OD (13 mm). It threads into Waterra Low Flow Tubing.
If you are considering a complete Low Flow System perhaps this link will help you select the matching components.
The Waterra D-13 Foot Valve is an integral part of the Waterra Low Flow System is designed to be used in small diameter piezometers (usually 1.5 inch ID to 0.75 inch ID). It can provide flow rates of up to 1/2 gallon per minute and can lift water from up to 100 feet.
The Waterra D-13 Foot Valve and the SS-13 Foot Valve have a male thread which allows them to have a maximum outside diameter of 5/8” (13mm). This narrow diameter means that they will often fit into piezometers that can not be accessed by the Waterra Standard Flow System. Delrin D- 13 Foot Valve is less expensive than Stainless Steel so unless there is a compelling reason to use a Stainless Steel SS-13 choose the less expensive D-13 Foot Valve.