1.The valve body and spool are made of high quality materials, the imported seal ring has a longer life, high precision, no oil leakage, with back suction function, more effectively prevent the valve body and seal ring from being damaged by excessive pressure. 2.The volume type quantitative media flow rate is adjustable, quantitative and accurate, convenient and quick debugging, safe and reliable. 3.The seal component is reduced, the internal seal of the valve body is upgraded, making the valve body more wear-resistant and durable.
