77 Auto-Vac® Vacuum Breaker

SIZE RANGE: 1 inch (25 mm) MAX TEMP: 180°F (80°C) MAX PRESSURE: 400 PSI

77- Auto-Vac® Vacuum Breaker - This 1" valve is available in stainless steel and PVC. All internal parts are engineered composite, with a stainless steel disc and resilient seat. Used to prevent water hammer in wastewater valves.

NSF/ANSI 372 Low Lead

Warranty: 1 Year

Discount Code B
FOB Factory


77 Auto-Vac® Vacuum Breaker

77 Auto-Vac® Vacuum Breaker Specifications

77 Auto-Vac® Vacuum Breaker CAD

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77 Auto-Vac® Vacuum Breaker Literature

Sizes and Prices

Part Number Size Weight Spring Range Stainless Steel
List Price
Carbon Steel
List Price
Case Qty Style Plug Size Cracking Pressure By Pass Outlet Inlet Part #
Part #
Flanged 150
List Price
4701P PVC 1 12 $53.00
4701SS SS 1 12 $64.00