The company has introduced an extended size range Series 80DICL ductile iron check valve and Series 80S6CL stainless steel check valves in 2 in. through 6 in. in two different models. Model 80DICL is fusion epoxy coated inside and out with a patented poppet assembly and a high-strength unleaded body with a stainless spring and Nitrile seal. The 80S6CL features an all 316 stainless steel body construction including internal parts with a VITON® seal.