盲板阀

The quality of forged steel parts is higher than that of cast steel parts, and they can withstand the impact of beatings. The plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of cast steel gate valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel gate valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and the sealing performance is much better than that of cast steel gate valves, and the service life is longer. The flow direction of the medium is not restricted like other gate valves.

全焊接球阀阀体采用优质材料锻制而成，球体侧装，中法兰和颈部采用全焊接连接。全焊接球阀有筒形全焊接阀体结构和球形全焊接阀体结构两种形式。浙江欧菲主要生产的是筒形阀体结构的全焊接球阀。浙江欧菲拥有一整套成熟的低残余应力、低韧性损耗的焊接技术，以国际先进标准为依据，用焊接接头断裂韧度CTOD值进行免焊后热处理安全评估。浙江欧菲不同材质间的焊接工艺均经过独立认证权威机构TUV的认证，焊接接头的安全性通过专家评估。根据球阀公称尺寸与公称压力，我们可以提供的全焊接球阀有：全焊接固定球阀和全焊接浮动球阀。可以根据客户的使用工况，提供阀杆加长型埋地式全焊接球阀。阀杆加长的尺寸是由客户来提供的。

The Cryogenic Temperature and High Performance Butterfly Valve adopts an offset valve stem and eccentric butterfly plate design. When opening and in the middle position, the valve seat and the butterfly plate do not contact each other, which reduces the friction on the valve seat while reducing the torque, and improves the durability of the valve. It is a high-performance regulating and cutting valve. The valve is designed to handle various media that are most difficult to handle in today's industrial environment, including liquid oxygen, liquid natural gas and other cryogenic liquids.