Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, ventilation engineering tin Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air-conditioning duct installation and other train service. The company has experienced professional and technical personnel, white metal duct price, specializing in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. V-iron Category: Inspection V-iron, crossed V-iron, multi-port V-iron, single-port V-iron V-type iron purposes: for shaft inspection, calibration, white metal duct manufacture, marking, Yuhang District metal duct, the workpiece can be used to test the vertical, parallel. Detection precision shaft parts, dash, instrument and fixed clamping machining. v-shaped iron manufacturing standards: According to the National GB4972-85 standards for manufacturing cast iron V-frame press JB / T8047-95 standards for manufacturing, using HT200 material supply in pairs. V-iron material classification: cast iron V-shaped iron material can be divided into load requirements ductile iron and gray iron V-frame types: V-type frame carrying means V-shaped frame to withstand the weight per unit area after, V-shaped frame of the deflection. For ease of understanding, we can be seen V-shaped frame put away the workpiece, without affecting the normal use of the situation, V-shaped frame to withstand the pressure. Hangzhou Xingda ventilation equipment to undertake all types of tin ventilation engineering, ventilation engineering tin Hangzhou, Shaoxing tin ventilation engineering, fume purification project in Hangzhou, Hangzhou white metal duct processing, Hangzhou, engineering, installation and design of ventilation, fire smoke hotel kitchen project, Hangzhou, central air-conditioning duct installation and other train services. The company has experienced professional and technical personnel, specialized in various industrial and mining enterprises, hotels ventilation pipe installation, ventilation ducts schools, hospitals and other ventilation and exhaust gas treatment, waste dust collection of design and installation. Fan coil units should be carried out before entering the site acceptance, do stand-alone _ two-speed hydrostatic testing and commissioning. The test pressure of 1.5 times the system working pressure. Not leak in compliance. Horizontal unit should hanger fixed, and should be easy to disassemble and repair; drainage slope to meet the design requirements, the smooth flow of condensed water should flow to design the designated location for the return valve and water filtering, should be close to the fan coil units installation. Connection with the pipe fan coil should adopt a flexible tubing or soft takeover (metallic or non-metallic hose) connection, the pressure value should be higher than 1.5 times the working pressure of the hose connection should be solid and should not have a horse or deflated tube. Before the device factory fins should be cleaned of residual oil, or likely to cause condensation can not smoothly and have a "smoke" phenomenon discharged into the water tray. White metal duct production, Xingda ventilation (certified), metal duct Yuhang District of Hangzhou Xingda provided by ventilation equipment. Hangzhou Xingda ventilation equipment (www.tz1288.com/shop/index_6525.html) is a leader in Hangzhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. Xingda ventilation in leadership with the staff warmly welcome all inquiries negotiations to create a better future Xingda ventilation.