DNS DAV-P-B-PAV Combination Air Valve
DNS DAV-P-B-PAV Combination Air Valve
Spec Sheet: DNS DAV-P-B-PAV Combination Air Valve
Certification: Available on request
The DNS DAV-P-B-PAV is a high-quality combination air valve for a wide range of water networks and operating conditions. It evacuates air during pipeline filling, releases air pockets from pressurised pipes, and admits large volumes of air when the network is drained – with an advanced aerodynamic, double-orifice design and optional surge protection.
Description
DNS DAV-P-B-PAV Combination Air Valve
Features and Benefits:
• Straight-flow body with large-diameter automatic orifice for high flow rates
• Aerodynamic full-body kinetic shield prevents premature closing
• Dynamic sealing prevents leakage under low pressure (0.1 bar / 1.5 psi)
• Threaded 2″ (DN50) side outlet for Surge Protection (SP) or Inflow Prevention (IP) devices
• Fully corrosion-resistant internal parts for low maintenance and long life
• Tapped base boss for pressure gauge, check point or test drain
Combination (double-orifice) air valve for pipelines and water networks, protecting against air accumulation and vacuum formation at elevations, slope changes and road / river crossings. Optional accessories: Surge Protection (code SP), Inflow Prevention (code IP), Assisted Closing (code AC) and service ports (code P). Available as DAV-P-B-PAV and DAV-D-B-PAV; designed and tested to functional and water-service standards.
Specifications
| Type | Combination Air Valve (Double Orifice, 3-Function) |
|---|---|
| DN Range | DN20 to DN80 |
| Pressure Rating | PN16 (16 bar); min. operating 0.1 bar |
| Body Material | Glass-Reinforced Nylon (DAV-P) / Ductile Iron (DAV-D) |
| End Connections | Threaded or Flanged |
| Standards Compliance | BS EN 1074-4, AS 4956 |
| Operating Temperature | 1°C to 60°C |