Filter Expansion Joint, the lastest design for double uses, is the new coming pipeline facility with its compact structure, small size and light weight.1×1-50-600 horizontal screw-wing water meter without filter mesh,  can block the water with the impurities (such as sand, water grass or block). Thus, it is needed to equip the pipes with the water-filtering tanks. But, owing to its big bore and connection with flanges, expansion joint is in need for easy water meter installation and maintenance.

Filter expansion joint  regulates the flow or pressure of a fluid. Control valves normally respond to signals generated by independent devices such as flow meters or temperature gauges.

Filter expansion joints are normally fitted with actuators and positioners. Pneumatically-actuated globe valves and Diaphragm Valves are widely used for control purposes in many industries, although quarter-turn types such as (modified) ball, gate and butterfly valves are also used