Gongyi Xinli Pipeline Equipment Co.,Ltd.

XH81 Rubber Sewage Check Valve(Duckbill flexible check valve in Spain and Duck-billed Rubber Flat bill valve in American) is redesigned revolutionarily on the base of Spanish Ross Valve Company and American Red Valve Company, we dedicate to further design and improvement, and the valve has greater intensity, toughness and tightness. What’s more, the valve is free from any repair and maintenance because of having no movable parts. It can be matched with straight pipe, flange pipe, concrete pipe and glassy steel pipe. It can be widely used on the seashore, sand, dock, reservoir and municipal sewage treatment. As green environment-friendly valve, it can deal with the difficulty of obstruction by sand, block, silt, marine life and so on. This valve is our special product, it is usually used for draining sewage. In such foreign countries such as Spain or America, it is usually named as duck mouth-shaped valve. This product is the further technology development and design on the basis of the valves of the Spain ROSS Valve company and the America Red Valve company .We are always doing our best to make this kind of valve more special and to be perfect in the world. We also have achieved the improvements of the intensity, tenacity, sealing greatly. It is easy to install and no need to maintain. The valve can be matched to straight pipeline, flange pipe, cement pipe glass steel pipe. In addition, they also widely used on the coast, sands, reservoirs, and so on. Indeed, it is environmental friendly valve because it solves the problems of block by the sediment, sludge, stone, plant cover, halobios. Main data: Matching Pipeline Diameter Valve Step(A) Pipeline Touching(B) 1/2"~3/4" 15 15 1"~1-1/4" 20 20 1-1/2~2-1/2 25 25 3" 40 40 4" 50 50 6" 50 50 8" 50 50 10" 50 50 12"~14" 100 100 16"~20" 150 150 24"~36" 200 200 42" 250 250 48"~60" 300 300 72" 400 400 Note:DN800~1800(32"~72")  double hoops Matching Pipeline Diameter Valve Step（A） Pipeline Touching（B﹥） 1/2〝~3/4〝 15 15 1〝~1-1/4〝 20 20 1-1/2~2-1/2 25 25 3〝 40 40 4〝 50 50 6〝 50 50 8〝 50 50 10〝 50 50 12〝~14〝 100 100 16〝~20〝 150 150 24〝~36〝 200 200 42〝 250 250 48〝~60〝 300 300 72〝 400 400 Note:DN800~1800（32〝~72〝） double hoops