Qingdao Star Machine's low price coupling set is the shell of the pulse valve, and plays an important role in the process of the pulse valve cleaning. Once the valve body is damaged, your air tank is likely to leak, affecting the dust removal efficiency of the entire filtration system. The coupling set we produce can solve the hidden danger for you, and we also provide other accessories for optipow105/135. The casing is made of aluminium alloy material with high strength and good corrosion resistance, which can adapt to a variety of working environments.