





HDH series fine bubble disc diffuser is assembled by EPDM microporous diaphragm, reflux valve, clamping buckle and PP base plate.
Diaphragm of aeration aerator is made of imported ethylene propylene diene monomer (EPDM), which has excellent ozone oxidation resistance. This rubber material can resist a high temperature up to150°C and a low temperature up to -50°C, with excellent organic solvent resistance and inorganic matter resistance, as well as up to 25MPa of compression resistant and 500% of elongation.