Antifouling cut off valve Overview: HS41X antifouling cut off valve (backflow prevention device) is based on the official website of the current water supply, causing serious pollution due to reflux; my unit introduction of foreign advanced technology developed its own, safe and reliable, to prevent pollution by backflow of potable water new They suspected hydraulic control valve to ensure the health and safety of drinking life to fill the gaps in the valve area. First, the two main valve body, valve cover, valve, gaskets, springs and other components. Common type for two check valves in series, no security drainage. Times the product structure is reasonable, strong and easy to use, sealing performance, rugged and handsome appearance. Backflow prevention products are widely used in electric power, metallurgy, petroleum, chemical, gas, construction, paper, textile, pharmaceutical, food, marine, water, energy, drilling and other departments. Part Name Material Body, bonnet cast iron, carbon steel, stainless steel, valve steel, stainless steel, aluminum bronze stem nitrile rubber, nitrile rubber diaphragm chrome stainless steel diaphragm plate steel, stainless spring steel antifouling cut off valve main Technical parameters: Nominal pressure: 1.0 ~ 2.5MPa Nominal diameter: 50 ~ 600mm Suitable medium: Water Temperature: 0 ~ 80 ℃ Flange Standard: GB / T 17241.6 GB / T 9113 Test Standard: GB / T 13927 API598 antifouling cut off valve outside the park main dimensions: DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600 L 458 482 551 653 735 793 1008 1186 1340 1505 1670 1886 1986 2318 H 210 235 264 308 356 400 503 595 705 705 905 910 9,211,200