Used for connecting to polyethylene water supply pipes with a maximum pressure of 10 bar, corresponding to a temperature of 20°C. Components: Polypropylene body, black color; galvanized steel screws and nuts; NBR O-ring; AISI 430 stainless steel stiffening ring. Reference Standards: Thread according to DIN 2999, BS 21, ISO R 7/1 up to D160mm. ISO 228 for D180-D315mm. Pipe connection: PE according to DIN8072-8074, ISO 3607, and EN ISO 12201; PVC according to ISO161, EN ISO 1452, BRL-K502; PP according to ISO 3609, UNI 8318, DIN 807.