http://www.jimaiactuator.com/valves/ valves are constructed from lightweight yet durable materials that are resistant to rust, making them ideal for use in a wide variety of water applications. These valves are ideal for use in swimming pools, laboratories, water supply, water treatment, life science, and chemical applications. They are the most cost-effective option for the majority of flow control applications. Product Features Model: PVC pipe ball valve Size: DN15 ~ DN100 Operation actuated: pneumatic / electrical / manual Type: 2-way, 3-way pvc ball valve Material: PVC / CPVC / UPVC, plastic Seat material: PTFE Seals material: EPDM / Viton Standard: DIN / BS / ANSI / JIS Valves types website:http://www.jimaiactuator.com/valves/