Vent-Tech Model WZW
Designed for Zero Pressure Sealing and Maximum Efficiency
The Vent-Tech Model WZW Water Valve is a zero-pressure sealing air release and vacuum break valve, engineered for clean water systems where the hydraulic grade line does not consistently maintain pressure. With no reliance on minimum line pressure to achieve seal, the WZW offers reliable surge protection and vacuum relief in the most demanding low-pressure conditions.
Backed by over 13 years of engineering and manufacturing expertise, this valve features patent-pending flow designs and flat float technology that ensure superior durability, long-term performance, and industry-leading efficiency. Now available in sizes up to 16 inches.
- Improved air flow enhances pipeline efficiency
- Enhanced wear resistance ensures long-term durability
- Zero psi minimum sealing provides low-pressure reliability
- Durable stainless steel construction reduces maintenance needs
- Protects pipelines from collapse caused by vacuum conditions
- Maximizes pipeline capacity for optimal system performance
- Surge and column separation protection maintain system stability
- Trusted, proven design preferred by top civil engineering firms
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Vent-Tech Valve Series Configurations
SERIES-C Combination Air Valves
Note to Engineer
Shall be four (4) function valves designed to:
- Exhaust large quantities of air at start-up during the filling of a pipeline system.
- Prevent the development of hydraulic transients (surge control) during start-up and pressure surges and shall operate automatically.
- Release accumulated air in a pipeline system while the system is operational and under pressure.
- Open and admit large quantities of air into the pipeline system during draining or if negative pipeline pressure occurs.
SERIES-B Biased Combination Air Valves
Note to Engineer
Shall be four (4) function valves designed to:
- Exhaust controlled quantities of air at start-up during the filling of a pipeline system.
- Prevent the development of hydraulic transients (surge control) during start-up and pressure surges and shall operate automatically.
- Release accumulated air in a pipeline system while the system is operational and under pressure.
- Open and admit large quantities of air into the pipeline system during draining or if negative pipeline pressure occurs.
SERIES-V Vacuum-Restrictive Air Valves:
Note to Engineer
Shall be four (4) function valves designed to:
- Exhaust large quantities of air at start-up during the filling of a pipeline system.
- Prevent the development of hydraulic transients (surge control) during start-up and pressure surges and shall operate automatically.
- Release accumulated air in a pipeline system while the system is operational and under pressure.
- Restrict the admittance of air back into the pipeline.
SERIES-N Vacuum Relief Valves:
Note to Engineer
Shall be single (1) function valves designed to:
- Open and admit large quantities of air into the pipeline system during draining or if negative pipeline pressure occurs.
SERIES-A Deep Well Air Valves:
Note to Engineer
Shall be three (3) function valves designed to:
- Exhaust controlled quantities of air at start-up during the filling of a pipeline system.
- Prevent the development of hydraulic transients (surge control) during start-up and pressure surges and shall operate automatically.
- Open and admit large quantities of air into the pipeline system during draining or if negative pipeline pressure occurs.
