该页无缩略图
ZZVP/IN型自力式差压调节阀 ZZVP/N Self-operated Differential Pressure Control Valve
ZZVPIN型自力式差压调节阀，是一种依靠被调介质自身的压力变化进行自动调节的一种节能型调节阀。
ZZVP/N self-operated differential pressure control valve is an energy-saving control valve for automatic regulation relying on pressure changes of the regulated media.
它可应用于燃烧系统，发电机、空压机轴封系统，阀前 {{P}{<=slant}0.1{Mpa}} 、阀后 <10{kpa} ，连续控制。其特点是设备运行中可进行设定值调整；无填料，动作灵敏；能检测出微小的压力变化。广泛应用于工业生产微压压力的自动控制中。减压比大于100要用两级降压。
It can be applied to fuel system and generator and air compressor shaft seal system, upstream pressure {{P}{\le}0.1{Mpa}} and downstream pressure <10{kpa} , for continuous control. Its feature is to adjust the set value in equipment running; no packing, flexible operation; able to detect tiny pressure change. It is widely applied to automatic control of micro-pressure inindustrial productionTw-stage depressurization shallbe usedifthe presure reducing ratioise 100.
该系列分为ZZVP/N-16B 常开（控制压力高于设定时阀闭合）和ZZVP/N-16K常闭（控制压力高于设定时阀开启）两种。
The series is divided into ZZVP/N-16B normallyopen (close valve when control pressure is higher than seting) and ZZVP/N-16K normally closed (open valve when control pressure is higher than setting).
标准规格
Standard specification
阀体
| 形式 Type | 流体压力平衡型阀芯 |
| 公称通径 Nominal size | 20、25、32、40、50、65、80、100 |
| 公称压力 Nominal pressure | Class150、300;PN16、20、25、40 |
| 连接型式 Type of connection | 法兰式 Flange type |
| 阀内件材质 Trim material 阀内件处理 Trim treatment | 各种材质组合及适用温度·压力范围，请参见表1 See Table 1for standard material combination and application temperature· pressure range |
| 阀体及上阀盖 Body and upper bonnet | WCB,WCC,LCB,LCC,CF8,CF8M,CF3,CF3M,etc 各种材质的使用温度·压力范围，请参照表1 SeeTable1forapplication temperature·pressurerange ofmaterials |
| 填料 Packing | 无 None |
| 垫 圈 Gasket | 无石棉橡胶板、四氟等 Non-asbestos rubber gasket,PTFE,etc. |
- 1 -版本号：V23.3.1
Actuator
| 类型 Type | 薄膜式 Diaphragm type 膜片材质 |
| 规格 | Diaphragmmaterial 丁晴橡胶、三元乙丙橡胶、氟橡胶等 |
| Specification 用途 | Nitrile Butadiene Rubber, EPDM, Fluorine rubber, etc. 调节 |
| Purpose 压力调节范围kPa Pressure control | Regulation 0.5~5.5，5~10，9~14，13~19，18~24，22~28，26~33，31~38，36~44，42~51, |
| range kPa 使用温度 application | -50~200℃ |
| temperature 标准涂层色 Standard coating color | 灰色 Gray |
性能
| 额定Cv值 Rated Cv value | 见表2 See table 2 |
| 流量特性 Flow features | 快开 Quick open |
| 压力调节范围 Pressure control range | 见表3 See table 3 |
| 压力调节精度 Pressure control accuracy | ±10% |
| 允许泄漏量 Allowed leakage | 小于额定容量的0.01% Less than 0.01% of rated capacity |
表1阀体、阀内件材质组合及使用温度
Table 1 Material combination and application temperature of body and trim
表1-1阀体材质：碳钢
| 阀体材质 Body material | WCB，WCC（使用温度-29~425°℃） WCB, WCC (operating temperature -29~425°C) | |
| 阀芯 Plug | 材质 Material | 304 |
| 阀座 Valve seat | 材质 Material | 304 |
| 波纹管 Corrugated tube | 材质 Material | 304 丁晴橡胶（使用温度-10~93°℃） NBR (operating temperature -10~93°℃) |
| 膜片 Diaphragm | 材质 Material | 三元乙丙橡胶（使用温度-50~135℃） EPDM(operatingtemperature-50~135°C) 氟橡胶（使用温度-23~200°℃） FKM (operating temperature -23~200°℃) |
| 垫圈 Gasket 使用温度 | 材质 Material | 无石棉橡胶板，四氟等 Non-Asbestos Rubber Plate, PTFE, etc. |
| Application temperature | 材质使用温度范围取交集 Temperature range of the material to be used to take the intersection | |
| 阀体材质 | LCB，LCC（使用温度-46~425℃） LCB，LCC (operating temperature-46~425°C) | |
| 阀芯 Plug | 材质 Material | 304 |
| 阀座 Valve seat | 材质 Material | 304 |
| 波纹管 Corrugated tube | 材质 Material | 304 丁腈橡胶（使用温度-10~93℃） |
| 膜片 Diaphragm | 材质 Material | NBR (operating temperature -10~93°C) 三元乙丙橡胶（使用温度-50~135℃） |
| EPDM(operating temperature-50~135°℃) 氟橡胶（使用温度-23~200°℃） | ||
| 垫圈 | 材质 | FKM (operating temperature -23~200°C) 无石棉橡胶板，四氟等 |
| Gasket 使用温度 | Material | Non-Asbestos Rubber Plate, PTFE, etc. 材质使用温度范围取交集 |
| Application temperature | Temperature range of the material to be used to take the intersection |
| 阀体材质 | CF8,，CF8M，CF3，CF3M（使用温度operating temperature-196~538℃） | |
| 阀芯 Plug | 材质 Material | 316，316L |
| 阀座 Valve seat | 材质 Material | 316，316L |
| 波纹管 Corrugated tube | 材质 Material | 316，316L |
| 膜片 Diaphragm | 材质 Material | 丁晴橡胶（使用温度-10~93℃） NBR (operating temperature -10~93°C) 三元乙丙橡胶（使用温度-50~135℃） EPDM (operating temperature -50~135°℃) 氟橡胶（使用温度-23~200℃） |
| 垫圈 Gasket | 材质 Material | FKM(operatingtemperature-23~200°C) 无石棉橡胶板，四氟等 |
| 使用温度 Application temperature | 材质 Material | Non-Asbestos Rubber Plate,PTFE,etc. 材质使用温度范围取交集 Temperature range of the material to be used to take the intersection |
Table 2Rated Cv value
| 公称通径DN(mm) NominalsizeDN(mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | ||
| 额定流量系数（Cv） Rated flow coefficient(Cv) | 8.2 | 13 | 23 | 35 | 56 | 88 | 138 | 222 | ||
| 额定行程（mm） Rated stroke (mm) | 8 | 8 | 10 | 10 | 12 | 15 | 20 | 25 | ||
| 压力分段范围（kPa） Pressure segmentrange (kPa) | 0.5~5.5，5~10，9~14，13~19，18~24，22~28，26~33，31~38， 36~ 44，42~51，49~58，56~66，64~78，76~90，88~100 | |||||||||
表3压力调节范围
| 压力调节范围(kPa) Pressure control range (kPa) | 执行机构膜室有效面积（cm²） Effective area of actuator | 使用阀门口径（mm） Diameter of valve (mm) |
| 0.5~5.5，5~10，9~14，13~19，18~24，22~ 28，26~33，31~38，36~44，42~51，49~ 58，56~66，64~78，76~90，88～100 | diaphragm chamber (cm2) 100 | 20~50 |
| 280 | 65~100 |
阀体结构及原理
Body structure and principle
控制压力小于或等于 100Kpa 的调节阀称为自力式微压力调节阀(P3通大气)，差压调节阀是微压调节阀的另一种控制方式。由执行机构、调节机构、导压管等组成。差压调节阀工作原理：见原理图1
The control valve with control pressure \mathtt{\le100K p a} is known as the self-operated micro-pressure control valve (P3 vent to atmsphere) Differential pressure control valve is another controlmde of the micro-pressure control valve. tis composed of actuator, control mechanism and pressure pipe. See schematic diagram 1 for work principle of the differential pressure control valve
原理图
Schematic diagram
ZZVP-16K作用方式为压开式，即差压增大阀开启型。流体P1节流后成P2，经导压管与差压调节阀执行机构上模室联通，P2作用在波纹模片有效面积上产生一个向下的作用力，加上弹簧的初始压力（向下）作用力；讯号源压力P3（恒定值）引入执行机构下模室，作用在波纹模片有效面积上产生一个向上的作用力。与上模室P2和弹簧的合力（向下）的作用力平衡。P3与P2之间有一个差压值，这个差压值就是设定值。若差压变化，增大或减小，则平衡被破坏，阀门开大或关小，保住差压值恒定。若差压达不到设定值：如，小于设定值，调整方法如下：打开防尘盖1；反时针旋转调节螺钉2，减小弹簧的预压力，使设定值达到理想要求。反之，则调节螺钉的旋转方向相反。
ZZVP-16K action mode is pressure to open mode, namely, open valve with increasing differential pressure. Ater throttle, fluid P1becomes P2 and links with the upper die chamber of the diffrential pressure control valve actuator through the pressure pipe. 2 is exerted on the effective area of the corrugateddie to generate a downward acting force, adding the acting force ofthe initial pressure (downward)ofthe spring; signal source pressure P3 (steadystatevaleis ledin the lowerdiechamberof the actuator and exerted on the ffctive areaofthe corrugated di togenerate aupward acting force,balancing the acting force of the upper die chamber P2 and spring joint force (downward). There is a differential pressure value (setting value) between P3 and P2. In case of any differential pressure change (bigger or smaller), the balance willbe destroyed tomake the valeopenwider or smaller tokeep thedifferential pressure valu constantffentilurefailsreachttaltatadst shown as follows: open the dust cap 1, rotate the regulating screw 2 anticlockwise, and reduce pre-compression of th spring to make the set value meet requirements; on the contrary, rotate the regulating screw reversely.
Fig. 1 Schematic diagram of differential pressure control
Fig. 2 Overall size drawing
valve
表4外形尺寸及重量
Table 4 Overall size and weight
单位：mmunit: mm
| 公称通径 Nominal size | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
| ΦB | 310 | 310 | 400 | 400 | 400 | 400 | 400 | 400 |
| A | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 |
| H | 380 | 380 | 450 | 450 | 450 | 500 | 500 | 520 |
| 重量(Kg) Weight (Kg) | 12 | 18 | 25 | 32 | 45 | 58 | 68 | 76 |
