Cash Acme 1/2 in. Vacuum Relief Valve with Dust Cover – Model 22397LF

Product Description

The Cash Acme 1/2 in. Vacuum Relief Valve with Dust Cover (Model 22397LF) is designed to protect hot water supply systems and pressure vessels against negative pressure. Made from durable brass with a lead-free construction, this valve opens at a 1" mercury vacuum to prevent siphonage, burnt-out heaters, and collapsing of storage tanks. It features a slotted vent hole protected by a black dust cover, ensuring reliable performance in both domestic and commercial systems.

Key Features:

Material: Lead-free brass

Thread Size: 1/2 in. Male NPT

Vacuum Activation: Opens at 1" mercury vacuum

Dust Cover: Slotted vent hole protected by a black dust cover

Maximum Pressure: 200 psi

Temperature Rating: Up to 210°F

Compliance: Certified to ANSI Z21.22/CSA 4.4 and NSF/ANSI 372

Weight: 0.32 lbs

Benefits:

Prevents Negative Pressure: Protects systems from siphonage and tank collapse

Durable Construction: Lead-free brass ensures long-lasting reliability

Easy Installation: Compatible with standard 1/2 in. male NPT threads

Versatile Use: Suitable for both domestic and commercial applications