| ： Product name : || Pneumatic membrane three-way shut-off valve || ： Product model : || ZMQP |
| ： Driving method : || pneumatic || ： Connection form : || Flange |
| ： Structure form : || Single seat, double seat, sleeve || ： Sealing material : || Teflon |
| ： Pressure range : || 1.6-4.6MPa || ： Nominal diameter : || DN20-DN200 |
| ： Common materials : || Carbon steel, stainless steel || ： Technical consultation : || 021-31007323 |
是国内著名〖 ZMQP气动薄膜三通切断阀 〗制造商，也是国内大型【 切断阀 】生产商之一，公司自成立以来始终围绕客户的需求并持续创新，为广大的代理商和企业客户提供〖ZMQP气动薄膜三通切断阀 〗解决方案，质量可靠，价格实惠，故畅销全国各地，欢迎新老客户来电，来函，我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ ZMQP Pneumatic Membrane Three-way Cut-off Valves ] and one of the large domestic [ cut-off valve ] manufacturers. The majority of agents and corporate customers provide the "ZMQP Pneumatic Membrane Three-way Shut-off Valve" solution, which is reliable in quality and affordable, so it sells all over the country. Welcome new and old customers to call us and email us.
-- 概述 I. ZMQP Pneumatic Membrane Three-way Cut-off Valve -- Overview
、 ZSQ 型气动薄膜（活塞）切断阀采用顶导向结构，配用多弹簧执行机构。 ZMQ , ZSQ type pneumatic diaphragm (piston) shut-off valve adopts top-guided structure and is equipped with multi-spring actuator. S 流线型、压降损失小、阀容量大、拆装方便等优点。 It has the advantages of compact structure, light weight, sensitive action, S- streamline of fluid passage , small pressure drop loss, large valve capacity, easy disassembly and assembly, etc. The shut-off valve accepts signals from the regulating instrument to shut off, open or change the medium Flow direction, automatic control of process parameters such as pressure, flow rate and liquid level. It is widely used in the production process automatic control and transportation control system of various industrial sectors such as petroleum, chemical industry, metallurgy, electric power, light industry and textile.
This series of products have two types: film type and piston type. PN10 、 16 、 40 、 46 四种，公称口径范围 DN20 ～ 200mm 。 There are three types of valve body structure: single seat, sleeve, and double seat (two-position and three-way). There are two types of seals: packing seals and bellows seals. The range is from DN20 to 200mm . -60 ～ 450 ℃ 。 The applicable fluid temperature is from -60 to 450 ℃ . IV 级或 VI 级。 The leakage level is grade IV or VI . The flow characteristic is fast opening.
ZMQP 气动薄膜三通切断阀 -- 工作原理 Second, ZMQP pneumatic film three-way cut-off valve - working principle
气动三通薄膜切断阀采用顶导向结构，配用多弹簧执行机构。 ZMQP pneumatic three-way membrane cut-off valve adopts a top-guided structure and is equipped with a multi-spring actuator. S 流线型、压降损失小、阀容量大、拆装方便等优点。 It has the advantages of compact structure, light weight, sensitive action, S- streamline of fluid passage , small pressure drop loss, large valve capacity, easy disassembly and assembly, etc. The shut-off valve accepts signals from the regulating instrument to shut off, open or change the medium Flow direction, automatic control of process parameters such as pressure, flow rate and liquid level. It is widely used in the production process automatic control and transportation control system of various industrial sectors such as petroleum, chemical industry, metallurgy, electric power, light industry and textile. This series of products have two types: film type and piston type. PN10 、 16 、 40 、 46 四种，公称口径范围 DN20 ～ 200mm 。 There are three types of valve body structure: single seat, sleeve, and double seat (two-position and three-way). There are two types of seals: packing seals and bellows seals. The range is from DN20 to 200mm . -60 ～ 450 ℃ 。 The applicable fluid temperature is from -60 to 450 ℃ . IV 级或 VI 级。 The leakage level is grade IV or VI . The flow characteristic is fast opening.
气动薄膜活塞切断阀，气动薄膜隔膜切断阀，气动薄膜单座调节阀，气动薄膜隔膜调节阀，气动薄膜双座调节阀，调节阀在现代化工厂的自动控制中，调节阀起着十分重要的作用，这些工厂的生产取决于流动着的液体和气体的正确分配和控制。 ZMQP Pneumatic diaphragm piston shut-off valve, pneumatic diaphragm diaphragm shut-off valve, pneumatic diaphragm single seat regulating valve, pneumatic diaphragm diaphragm regulating valve, pneumatic diaphragm double seat regulating valve, regulating valve Function, the production of these factories depends on the correct distribution and control of flowing liquids and gases. These controls, whether they are energy exchange, pressure reduction, or simple container charging, require certain final control elements to complete. “ 体力 ” 。 The final control element can be considered the " physical force " of automatic control . Between the low energy level of the regulator and the high energy level functions required to perform flowing fluid control, the control element ultimately performs the necessary power amplification.
Regulating valves are the most widely used version of the final control element. Other final control elements include metering pumps, regulating baffles and louvered baffles (a variant of butterfly valves), variable-slope fan blades, current-regulating devices, and motor positioning devices other than valves.
Although control valves are widely used, other units in the control system probably do not have as little maintenance work as it does. In many systems, the operating conditions experienced by the regulating valve such as temperature, pressure, corrosion, and contamination are more severe than other components. However, when it controls the flow of process fluids, it must operate satisfactorily and with minimal maintenance the amount.
The regulating valve acts as a variable resistance in the pipeline. “ 摩擦 ” 所引起的。 It changes the turbulence of the process fluid or provides a pressure drop in the case of laminar flow. The pressure drop is caused by changing the resistance or " friction " of the valve . “ 节流 ” 。 This pressure reduction process is often referred to as " throttling . " For gas, it is close to the isothermal adiabatic state, and the deviation depends on the non-ideal degree of the gas (Joule-Thomson effect). In the case of liquids, pressure is consumed by turbulence or viscous friction, both of which convert pressure into thermal energy, resulting in a slight increase in temperature.
A common control loop consists of three main parts. The first part is the sensitive element, which is usually a transmitter. It is a device that can be used to measure the parameters of a process, such as pressure, level, or temperature. —— 调节器，它确定并测量给定值或期望值与工艺参数的实际值之间的偏差，一个接一个地把校正信号送出给最终控制元件 —— 调节阀。 The output of the transmitter is sent to the regulating instrument -the regulator, which determines and measures the deviation between the given value or the expected value and the actual value of the process parameter, and sends the correction signal one by one to the final control element - regulation valve. The valve changed the flow of the fluid and brought the process parameters to the desired value.
In the pneumatic regulating system, the pneumatic signal output by the regulator can directly drive a spring-film actuator or a piston actuator to make the valve act. In this case, the energy required to determine the valve position is provided by compressed air. The compressed air should be dried in outdoor equipment to prevent freezing and should be purified and filtered.
ZMQP 气动薄膜三通切断阀 -- 特点 Three, ZMQP pneumatic film three-way shut-off valve -- features
切断阀采用多弹簧执行机构与调节机构用三根立相连，整个高度可减小约 30 ％，重量可减轻约 30 ％。 1. The shut-off valve adopts a multi-spring actuator and an adjustment mechanism connected by three stand. The overall height can be reduced by about 30 % and the weight can be reduced by about 30 %.
阀体按流体力学原理设计成等截面低流阻流道，额定流量系统数增大 30 ％。 2. The valve body is designed as a low-flow resistance flow channel with constant cross-section according to the principle of fluid mechanics, and the number of rated flow systems is increased by 30 %.
阀内件密封部分有严密型和软密封两种，严密型为堆焊硬质合金，软密封型为质材料制作，关闭进密封性能优良。 3. There are two types of inner valve sealing parts: tight type and soft seal. The tight type is made of hard alloy, and the soft seal type is made of high quality materials.
平衡型阀内件，提高了切断阀的许用压差。 4. Balanced valve trims increase the allowable differential pressure of the shut-off valve.
波纹管密封型对移动的阀杆形成完全的密封，堵绝了介质外漏的可能性。 5. The bellows seal type completely seals the moving valve stem, blocking the possibility of medium leakage.
活塞式执行机构，操作力大，使用压差大。 6. Piston type actuator with large operating force and large pressure difference.
ZMQP 气动薄膜三通切断阀 -- 零件资料 4. ZMQP Pneumatic Membrane Three-way Cut-off Valve -- Part Information
HT200 、 ZG230-450 、 ZG1Cr18Ni9Ti 、 ZG1Cr18Ni12MO2Ti Valve body and sealing sleeve: HT200 , ZG230-450 , ZG1Cr18Ni9Ti , ZG1Cr18Ni12MO2Ti
1Cr18Ni9T 、 OCr18Ni12MO2Ti 、 1Cr18Ni9Ti 堆焊司太莱合金 Valve core and valve seat: 1Cr18Ni9T , OCr18Ni12MO2Ti , 1Cr18Ni9Ti surfacing Stellite alloy
1Cr18Ni9T 、 OCr18Ni12MO2Ti 、 1Cr18Ni9Ti 堆焊司太莱合金 Sleeve and valve plug: 1Cr18Ni9T , OCr18Ni12MO2Ti , 1Cr18Ni9Ti surfacing Stellite alloy
Filler: PTFE, flexible graphite
Corrugated diaphragm: Polyester fabric reinforced with nitrile rubber
60Si2Mn Spring: 60Si2Mn
2Cr13 、 1Cr18Ni9Ti Valve stem and push rod: 2Cr13 , 1Cr18Ni9Ti
Spool and plug (soft parts): reinforced PTFE
1Cr18Ni9Ti Bellows: 1Cr18Ni9Ti
ZMQP 气动薄膜三通切断阀 -- 技术参数 V. ZMQP Pneumatic Membrane Three-way Cut-off Valve -- Technical Parameters
、 40 PN16 , 40
、 40 PN16 , 40
、 40 PN16 , 40
、 40 PN16 , 40
kg ） ( Kg )
） 1 ) GB/T4213-92; The performance and indicators of this product follow GB / T4213-92;
） 2 ) If the allowable pressure difference value in the table is greater than the nominal pressure, then the nominal pressure value is adopted, and the value less than or equal to the nominal pressure value is unchanged;
） 表允许值为使用标准缸值，可配用不同的气缸提高允许压差。 3 ) The allowable value in the table is the standard cylinder value. Different cylinders can be used to increase the allowable pressure difference.