Features and Specifications Manufactured from high performance rigid uPVC & PP compound. Excellent chemical and corrosion resistance. Precise flow control possible. Maximum operating pressure 8 kg/cm². Available in 40, 50, 63, 75 and 90 mm sizes. Light weight Application Suitable for flushing the entire drip irrigation system & water supply line. • Recommended in micro/ drip irrigation as a flush valve to remove the entrappled dirt from pipe line during flushing.