Electric damper attachment selectable option following accessories depending on control and requirements: cut-off Accessories: single solenoid valves, double solenoid valves, limit switches back to the hearing. Modulating Accessories: Electrical locator, pneumatic positioner, electrical converters. Gas processing Accessories: Air filter regulator, Gas processing FRL. Manual mechanism: HVSD handheld damper mechanism combination of all components temperature requirements for the next 250 ℃ or 150 ℃ conditions of continuous work effectively 1h. Combination valve length and width tolerances in accordance with GB / T 1804-2000 m level specified. Typhoon valve after the entire installation is complete, the difference between two diagonal length of each side should not exceed 3.0mm, flatness tolerance ends flange plane should not exceed 3. Wuhan damper. 5mm. Maximum drive torque (Nm) should not exceed JB / T 7228-1994 5. Wuhan damper purchase. 9 of the relevant requirements. Wuhan damper Which is good. Wuhan valve, damper Wuhan, Wuhan Han Wei Li Yuen valve provided by the well-being of Equipment Co., Ltd. Wuhan Han Wei Li Yuen. Wuhan Han Wei Li Yuen-being of Equipment Co., Ltd. (www.whhwly.com) strong, credible, in Wuhan, Hubei fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wuhan Han Wei Li Yuen and you hand into the brilliant, for a better future!