RETZ瑞茨『进口偏心半球阀』详细介绍●RETZ球阀系列●RETZ双偏心半球阀●产品数据
?进口偏心半球阀描述--
RETZ双偏心半球阀其结构采用偏心楔紧原理,通过传动机构达到闸紧、调节、关闭的目的，密封副是金属面环带硬面接触密封，双偏心结构在开启时阀芯位于藏球室内，流通截面大，且阀门不被冲刷，关闭时阀芯不被冲刷，开启时阀芯球面沿阀座渐进，效地切除结垢障碍，实现可靠密封。它对两相混流易结垢固体析出的混流输送特别有效。
RETZ double eccentric hemispherical valve its structure adopts the principle of eccentric wedging, through the transmission mechanism to reach the purpose of tight, adjustable and closed, the sealing pair is a metal face with hard surface contact seal. When the double eccentric structure is opened, the valve core is located in the storage room, the circulation section is large, and the valve is not washed, the valve core is not washed and opened when the valve is closed. The spool sphere is gradual along the valve seat to effectively remove scaling barriers and achieve reliable sealing. It is especially effective for mixed flow of two phase mixed flow and easy scaling.
?进口偏心半球阀特点--
1、流通面积大，流阻小。这是因为开启后阀芯位于藏球室，流体直通。
2、操作扭矩小，转90度即可启闭完成，操作轻便。
3、密封严紧，双偏心金属硬密封。结垢不影响启闭，这是半球阀显著的优点。
4、半球用双金属，母材上堆焊不同的合金，阀座也作相应堆焊经特殊的处理，密封面组合成防腐、耐磨、高强度等各种类型，满足不同场合需求.
5、密封严紧，输送有害气体可达零泄漏，
6、密封副的阀芯留有补偿量，当阀座磨损(阀座硬度低于阀芯)后，关闭时再转动少许，仍能可靠密封，延长使用寿命，此外，用户将压紧螺母拧掉，调整或更换后阀座仍可使用，避免了现行众多阀门密封失效整合报废的弊端。
?进口偏心半球阀典型应用--
1.通用阀:适用于污水处理、纸浆、城市采暖供热等要求严紧的场合。
2.油化式工专用阀:适用于原油、重油等各类油品、化工行业弱腐蚀、二相混流介质。耐温可达425°C
3.燃气专用阀:适用于煤气、天然气、液化气的输送控制。产品结构特点是密封副堆焊不同的含铬不锈钢，密封严紧、抗腐蚀。
4.料浆专用阀:适用于液态、固态两相混流或液态输送中化学反应有结晶析出或结垢的工业管道输送。
产品结构特点根据顾客需求介质、温度要求不同.密封副堆焊阀芯用铭相钒合金堆焊，阀座采用铬相合金、铬合金、不锈钢合金焊满足不同料浆输送的需要。
5. 煤粉灰渣专用阀:适用于电厂、水力除渣或气态输送管道的控制。产品要求耐磨性能，阀芯采用组合球式双金属，具有相当高的刚度并非常耐磨，阀座采用整体耐磨1号或全堆焊，且具有硬密封球阀的优点。
1. general purpose valves: suitable for sewage treatment, pulp, urban heating, heating and other stringent requirements.
2. the special valve for oil and chemical industry is suitable for all kinds of oil and chemical industries, such as crude oil and heavy oil. Temperature resistance of up to 425 C
3. dedicated gas valves: suitable for gas, natural gas and liquefied petroleum gas delivery control. The product is characterized by sealing surfacing with different chromium stainless steel, tight sealing and corrosion resistance.
4. special slurry valve: suitable for liquid, solid two phase mixed flow or liquid transportation, chemical reaction has crystallization precipitation or scaling of industrial pipeline transportation.
The characteristics of the product structure are different according to the requirements of the medium and temperature of the customers. The valve core of the sealing pair is surfacing with the inscribed vanadium alloy, and the seat adopts chromium alloy, chromium alloy and stainless steel alloy welding to meet the needs of different slurry transportation.
5. special valve for pulverized coal ash and slag: suitable for power plant, hydraulic slag removal or gas transportation pipeline control. The product requires wear resistance, the valve core is combined ball type double metal, with high stiffness and very wear-resistant, the seat adopts the whole wear-resistant No. 1 or fully surfacing welding, and has the advantages of hard sealing ball valve.
?进口偏心半球阀参数--
温度：-20℃~250℃
压力：PN1.0~4.0Mpa
规格: 2-12"
连接：法兰
材质: 铸钢,不锈钢