Connected by flanges or NPT, CDL(F) Series pumps can adopt different materials suitable for different environment applications : Gray cast iron L pump is suitable for clean non-corrosive liquid circulating pressurization and heating and transportation.The materials are 304 and 316L stainless steel which can serve as supply pumps, booster pumps and circulation pumps for clean, oxygen-rich liquid. Flange diameter: DN25-DN125; Maximum flow: 180m3/h, maximum head is 240m. Attention! The selected materials and seals for different Liquid must be confirmed by VST.