DNS LSN Nylon Sewage Air Valve
DNS LSN Nylon Sewage Air Valve
Spec Sheet: DNS 50mm LSN Nylon Sewage Air Valve (DNS-2″-TF-AS-BSP-LNS-SAV)
Certification: Available on request
The DNS LSN Nylon Sewage Air Valve is a 50 mm (2″) air valve with a UV-stabilised nylon body, purpose-built for sewage and wastewater networks. It releases large volumes of air during pipeline filling, vents air under pressure, and admits air during draining, while resisting the corrosive and fouling conditions of sewage duty.
Description
DNS LSN Nylon Sewage Air Valve
Features and Benefits:
• UV-stabilised nylon body for excellent corrosion resistance in sewage duty
• Large 50 mm kinetic orifice with 1.8 mm automatic orifice
• High-density polyethylene floats; EPDM / Nitrile seals
• 316 stainless steel automatic orifice; 304 stainless steel fasteners and internals
• 50 mm BSP threaded female end connection
• Optional ¼″ BSP bleed port; isolation / gate valve options available
Model DNS-2″-TF-AS-BSP-LNS-SAV. Size 50 mm (2″). Pressure rating 25 bar; minimum working pressure 0.1 bar. Operating temperature 60°C. Kinetic orifice 50 mm (1962 mm²); automatic orifice 1.8 mm (2.5 mm²). Factory tested: hydrostatic 1.5 × working pressure, 0.1 bar low-pressure sealing and automatic orifice operation.
Specifications
| Type | Sewage Combination Air Valve (Double Orifice) |
|---|---|
| DN Range | DN50 (2") |
| Pressure Rating | 25 bar; working from 0.1 bar |
| Body Material | UV-Stabilised Nylon |
| End Connections | 50mm BSP threaded female |
| Operating Temperature | Up to 60°C |