Jiangsu PPH Melting Ball Valve Manufacturer - Price - In Stock [Jiangsu Jiayuan Pipe Valve Co., Ltd.] Material: The PPH Melting Ball Valve is mainly made of polypropylene homopolymer (PPH) material, which is a semi-crystalline thermoplastic. Features: Chemical Resistance: PPH material has good corrosion resistance to a variety of chemicals, suitable for controlling various corrosive media such as acids, bases, and salts. Heat Resistance: PPH material has high heat resistance and can be used for a long time at temperatures of 80°C to 100°C, with some special formulations of PPH material even usable at higher temperatures. Wear Resistance: The surface of PPH material is smooth with a low friction coefficient, thus the PPH Melting Ball Valve has good wear resistance. Low Water Absorption: The water absorption of PPH material is low, which helps maintain the dimensional stability and performance of the valve.