SDX Sliding Disc Check Valves
SDX Sliding Disc Check Valves
The Av-Tek SDX Sliding Disc Check Valve combines advanced engineering with high-grade materials to deliver bubble-tight, leak-free performance in water applications. Its resilient T-shaped seat and mechanically retained design eliminate startup leaks and reduce operational noise, ensuring a quiet pump house.
Constructed with a 316L SST welded body seat and a durable ductile iron body with fusion bonded epoxy coating, the SDX offers long-lasting reliability and minimal maintenance. The oversized body ensures maximum flow and reduced head loss, while robotic-welded seats prevent corrosion, undercutting, and separation.
With its sliding disc design, the SDX valve resists high velocities and provides smooth, shock-free operation. It is suitable for pressure control, booster pump stations, separation of merging systems, and other critical water applications.
Key Features:
- Mechanically retained T-shaped resilient seat for drip-tight closure
- 316L SST welded body seat with micro-finished, polished surface
- Oversized ductile iron body for maximum flow and reduced head loss
- Fusion bonded epoxy coating for corrosion protection
- Certified zero leakage according to EN and AWWA standards
- Silent operation for pump houses and clean water systems
- Resistant to high velocity and pressure conditions
- Minimal maintenance required
- Eliminates water hammer and operational shock
- Common applications: booster pump stations, pipeline separation, and potable water systems