The VR20 vacuum relief valve is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well suited for many domestic and commercial systems. It works by preventing internal vacuum conditions that could result in burned out heaters and/or collapsed storage tanks. Installed on the cold water supply line, the CashAcme™ VR20 closes tightly under pressure and opens at a 1 Inch mercury vacuum. Atmosphere admitted to the system breaks the vacuum, preventing collapse of the storage tank.
CashAcme™ Vacuum Relief Valve, 3/4 Inch Nominal, NPT End Style, 200 psi Pressure, Media: Water, DZR Brass Body, Stainless Steel Spring, Buna N Softgoods, 210 deg F, Dimensions: 2-1/2 Inch L x 1-3/4 Inch W, Includes: Dust Cover, Warranty: Limited
| Nominal Size | : | 3/4 Inch |
| End Style | : | NPT |
| Pressure Rating | : | 200 psi |
| Media | : | Water |
| Body Material | : | DZR Brass |
| Spring Material | : | Stainless Steel |
| Softgoods Material | : | Buna N |
| Temperature Rating | : | 210 deg F |
| Dimensions | : | 2-1/2 Inch L x 1-3/4 Inch W |
| Includes | : | Dust Cover |
| Warranty | : | Limited |
- Prevents internal vacuum conditions - guards against siphonage, burnt-out heaters and collapsing of storage tanks and negative pressure
- Opens quickly in emergency situations - opens on a one inch mercury vacuum
- Listed by CSA - inspector friendly, peace of mind
- Every valve is tested for performance prior to shipping - specify and install with confidence
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