Drain valves connect to the air blower’s air hose and are a check valve that allows the water flow to pass through in only a single direction. When the air blower is operating, the drain valve remains closed to prevent air leakage. When the air blower is closed, the drain valve prevents water from getting into the air blower. We offer a variety of PVC unions, shown below.
With proven product quality and performance, we are confident to offer:
Pool equipment wholesale for distributors
Everything needed from pool and Spa equipment to pool accessories for pool & Spa contractor
OEM service for branded suppliers and manufacturers of pool equipment and supplies
Manufacturing service of pool equipment and supplies for the factories with limited production capacity and product variations.
Drainage, Series SDP-06155
Size: metric: Φ32mm; English: 1"
Ball check valves, which connect to the air blower’s air hose, are a check valve in which a spring-loaded ball is the movable part that blocks the flow. When the air blower is closed, the ball check valve also remains in a closed position in order to block reverse flow.
Check Valve, Series SDP-06152
Size: English: 1"X1"
An exhaust valve opens and closes to allow exhaust gas to escape a pump or pipe when a pump has been poorly installed, thus ensuring a greater pump efficiency.
Exhaust, Series SDP-06156
Size: metric: Φ32mmXΦ10mmXΦ32mm; English: 1"XΦ10mmX1"
We are the manufaturer of pump, sand filter and other accessories for massage bathtubs, outdoor SPA and swimming pools in China. We have been able to build a good reputation in the industry and to offer you custom products.
As a professional pool and spa equipment manufacturer founded in 1999, we are committed to the design and manufacture of swimming pool pump, spa pump, whirlpool bath pump, sand filter and related accessories. If you are a contractor for swimming pools, Spa tubs, and message bathtubs, DXD is the right place to offer you wholesale pool equipment and accessories at affordable prices. Not only do we provide one of hot tub, SPA and pool equipment and accessories, we can also offer a complete set of products to meet the needs of your swimming pools, Spa houses, etc. Our high quality pool and spa equipment has passed various certifications including CE, TUV, UL, ETL, CSA, SAA, KC, etc. We're proud that our products have gained great popularity among sanitary ware companies and SPA, swimming pool equipment manufacturers. Our products have been exported to more than 20 countries and regions all over the world including Europe, United States, Brazil, etc. We also have a perfect service system to provide good after sales service for our customers.