... , pressure balance valve, valve, butterfly valve, pipe expansion joints, bellows, waterproof sleeve tube, power delivery Joint, limit expansion joints etc ... , pumps, compressors, fans and other piping systemsbr> [Media]:Common type used to transport -15 to 120 centigrade, of air, compressed ... air, water, sea water, oil, acid and alkali. Special type used to transport -30 to 250 centigrade of the medium ...