Our sophisticated production equipment, advanced manufacturing technology fan dampers, detection means complete, with independent R & D and innovation high strength fire damper module, the main products are: air conditioning units, VAV air conditioners, damper actuators, insulation hose , damper, smoke fire damper, high-temperature exhaust fan, fire temperature exhaust machine, fire (ventilation) tank chassis ventilation centrifugal, plenum, axial fans, fan coil, aluminum outlet, ventilation hose, plastic hose (snakeskin tube), and other air-conditioning end products. The company is located in Dezhou City, Shandong Province, China Lu right Tuen, the company's main products: fans, outlet, air valve, air hose, cooling towers, water tanks, fan coil units, air conditioning units, fresh air ventilator, such as central air-conditioning end products. Welcome! Advanced production equipment and strict and efficient production management system is to protect the quality of our products; pursuit of excellence, commitment is our consistent principle to follow; unique selling simple way, it enables you to experience the "less money bought products" pleased. Cui Yuhua, general manager and the staff welcome new and old customers come to visit us! Construction and installation points 1. Valve mounting position, altitude, direction import and export must meet the design requirements, the connection should be firmly tight. 2. The valve can be used in various forms of the end portion of the pipe connection. The most important connections are threaded, flanged and welded connections. When the flange connection, if the temperature exceeds at 350 ℃, due to the bolts, flanges and gaskets creep relaxation, choose high temperature bolt material. 3. The valve must be visually inspected prior to installation, the valve plate should be consistent with existing national standards GB12220 "Universal Valve logo" requirement. For working pressure greater than 1.0MPa and the role played off valve in the main pipe, it should be the strength and tightness test, passing behind the prospective use. Other valves may be tested separately, stay system pressure test test. 4. strength test, the test pressure for the nominal price of 1.5 times dampers, duration of not less than 5min, the valve housing, packing should be no leakage. 5. When the damper tightness test, the test pressure for the nominal pressure of 1.1 times; the test pressure in the test duration should remain unchanged, the time specified in Table 2, to valve sealing surface no leakage in compliance. Huludao damper damper prices _ _ Rui Xincheng air conditioning provided by the Texas Air Conditioning Equipment Co., Ltd. Rui Xincheng. Rui Xincheng Texas Air Conditioning Equipment Co. (www.dzrxckt.com) strong, credible, Shandong Texas fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Rui Xincheng into the brilliant air conditioning and you work for a better future!