搪瓷 搪玻璃隔膜阀

进口搪瓷，搪玻璃隔膜阀主要性能 Main performance

搪瓷，搪玻璃隔膜阀是将含硅量高的瓷釉涂于金属表面，通过950℃搪烧，使瓷釉密着于金属铁胎表面制成。因此，它具有类似玻璃的化学稳定性和金属强度的双重优点，是一种优良的耐腐蚀设备元件。隔膜阀是用阀腔内的膜片作启闭件封闭流道、截断流体、并将阀体内腔和阀盖内腔隔开的截止阀retz品牌  Enamel and glass lined diaphragm valves are made by coating the enamel with high silicon content on the metal surface and firing it at 950 ℃ to make the enamel close to the surface of the metal iron tire. Therefore, it has the double advantages of chemical stability and metal strength similar to glass, and is an excellent corrosion-resistant equipment element. Diaphragm valve is a stop valve that uses the diaphragm in the valve cavity as the opening and closing part to close the flow channel, cut off the fluid, and separate the inner cavity of the valve body from the inner cavity of the bonnet.

搪瓷，搪玻璃隔膜阀的工作介质接触的仅仅是隔膜和阀体，操纵机构与介质通路隔开，不但保证了工作介质的纯净，同时也防止管路中介质冲击操纵机构工作部件的可能性；阀杆处不需要采用任何形式的单独密封。所以该阀能理想地控制多种工作介质，膜片常用橡胶、塑料等弹性、耐腐蚀、非渗透性材料制成，尤其适合带有化学腐蚀性 The working medium of enamel and glass enameled diaphragm valves only contacts the diaphragm and valve body. The operating mechanism is separated from the medium passage, which not only ensures the purity of the working medium, but also prevents the possibility of the medium in the pipeline impacting the working parts of the operating mechanism; There is no need to use any form of separate seal at the valve stem. Therefore, the valve can ideally control a variety of working media. The diaphragm is usually made of elastic, corrosion-resistant and impermeable materials such as rubber and plastic, especially suitable for chemical corrosion

进口搪瓷，搪玻璃隔膜阀特点∶ Performance characteristics

1、耐酸性：对各种有机酸、无机酸、有机溶剂均有较好的抗蚀性。搪玻璃试样置于20%HCI溶液中煮沸48h，腐蚀速率为0.9lg/m2.d（优等品指标为1.0g/m2.d）Acid resistance: it has good corrosion resistance to various organic acids, inorganic acids and organic solvents. The glass lined sample is boiled in 20% HCI solution for 48h, and the corrosion rate is 0.9lg/m2. D (the index of superior products is 1.0g/m2. D)

2、耐碱性：搪玻璃对碱性溶液抗蚀性较酸溶液差。搪玻璃试样置于1N氢氧化钠溶液腐蚀，试验温度80℃时间24h。腐蚀速率为6.76g/m2.d（优等品指标为7.0g/m2.d）The corrosion resistance of glass lining to alkaline solution is worse than that of acid solution. The glass lined sample is corroded in 1n sodium hydroxide solution at 80 ℃ for 24h. Corrosion rate is 6.76g/m2. D (excellent product index is 7.0g/m2. D

3、操作温度：设备加热和冷却时，应缓慢进行。搪玻璃设备使用温度为0－200℃，耐温急变性≥200℃ Heating and cooling of glass lined equipment shall be carried out slowly. The service temperature of glass lined equipment is 0-200 ℃, and the temperature resistance is not less than 200 ℃

4、瓷层厚度：瓷层厚度0.8-2.0mm，搪玻璃设备附件的瓷层厚度0.6-1.8mm The thickness of the porcelain layer is 0.8-2.0mm, and the thickness of the porcelain layer of the glass-lined equipment accessories is 0.6-1.8mm

5、耐压电：具有良好的绝缘性，当搪玻璃在规定厚度内用20KV高频电火花检查瓷层时，高频电火花不能击穿瓷层 It has good insulation. When the porcelain layer is inspected by 20kV high-frequency electric spark within the specified thickness of the enamel, the high-frequency electric spark cannot break through the porcelain layer

6、耐冲击性：玻璃层的内应力越小，弹性越好，硬度越大，抗弯抗压强度越高，则耐冲击就越好。玻璃层在规定厚度内，用直径30mm，重量112g钢球冲击时，其冲击功为272×10-3J（优等品指标为260×10-3J）The smaller the internal stress of the glass layer, the better the elasticity, the greater the hardness, and the higher the flexural and compressive strength, the better the impact resistance. When the glass layer is impacted by a steel ball with a diameter of 30mm and a weight of 112G within the specified thickness, its impact energy is 272 × 10-3j (excellent product index is 260 × 10-3J）