The rubber products limited manufactures linatex check valves. There are two types of valves: non return and double non return [dnr] which are available in sizes of 64 mm to 610 mm and for pressures of 100 psi. Dnr valves provide excellent flow control for fluids. Linatex is a unique 95% pure natural rubber that exhibits outstanding resilience, strength and resistance to cutting tearing, abrasion and corrosion
