Thread :1/2 inch DN15 Valve Body: Special Nylon For High Temp. Plug: Silicon Rubber (for High Temp). Rod: Special Nylon For High Temp. Working Water Pressure: 0.01 - 0.8 Mpa Working Temp: - 35 C to + 120 C Float Ball: P P Length : within 19 CM (not include thread) USAGE : Special developed for those small footprint water tank with high temp water even up 120 C, it can be installed in 15CMX15CMX15CM water tank. Our DN15 small Plastic valve can be use on different water supply equipment, compared with brass valve and stainless valve , it's cheaper and more flexible. can be installed from different angle in water tank.