Clamp Pressure & Vacuum Relief Tank Vent Valve Bevel Seat ) is available from 1/2"

) is available from 1/2" up to 4"

This product is compatible with select blind (no display) flowmeters

A  1/2" 1

"D" Single mechanical external seal

It does this with the addition of a silicone o-ring that can handle temperatures as low as -58°F (-50°C) and as high as 302°F (150°C) and a solid Teflon casing gasket

Clamp Pressure & Vacuum Relief Tank Vent Valve Bevel Seat ) is available from 1/2"This valve diminishes pressure in a tank as the fluid levels go up and it alleviates the vacuum as fluid levels go down. Pressure: 1PSI Vacuum: 0. 09 PSI Maximum Flow Rate 495 GPM T304 Stainless Dome Either a 2 or 3 Clamp Connection with any type of clamp gasket.