、概述Outline：
ZMAS精小型气动薄膜角形单座调节阀采用顶部导向结构，配用多弹簧执行机构，具有结构紧凑、重量轻、动作灵敏、流体通道呈S流线型、压降损失小、阀容量大、流量特性精确、拆装方便等优点。广泛应用于精确控制气体、液体等介质的工艺参数如压力、流量、温度、液位保持在给定值。特别适用于允许泄漏量小，阀前阀后压差小的高粘度，含有悬浮物和颗粒状物质流体的调节，可避免结焦、堵塞、便于自净与清洗的场合。
本系列产品有标准型、调节切断型、波纹管密封型、夹套保温型等多种品种。产品公称压力等级有1.6、4.0、6.4MPa，公称通径范围DN20-200mm。最小阀芯口径3mm，适用流体温度有-200~+450。允许泄漏量等级有IV级和VI级，流量特性为线性或等百分比。
ZMAS fine small single-seat pneumatic control valve film angular orientation using top of the structure, equipped with multi-spring actuator, with a禁发网址pact, light weight, sensitive, fluid channel was streamlined S, the pressure drop loss, valve capacity, flow characteristics accurate, and easy disassembly. Widely used for precise control of gases, liquids and other media of process parameters such as pressure, flow, temperature, liquid level maintained at a given value. Especially for a small amount of allowable leakage, the valve before the valve after the pressure difference of the high viscosity, particulate matter containing suspended solids and fluid regulation, to avoid coking, plug, easy to self-purification and cleaning of the occasion.
This series of products are standard, adjust the cut-off, bellows seal type, jacket insulation type and other species. Product nominal pressure rank has 1.6,4.0,6.4 MPa, nominal diameter range of DN20-200mm. Minimum spool diameter 3mm, apply the fluid temperature -200 to +450. Allowable leakage levels are Class IV and Class VI, flow characteristics of linear or equal percentage.
二、主要零件材料Materials for main parts
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阀体、阀盖 Body and bonnet
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HT200、WCB、ZG1Cr18Ni9Ti |
衬套Bush |
2Cr13 |
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阀芯、阀座 Valve, the valve seat
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1Cr18Ni9Ti、司钛莱合金堆焊 1Cr18Ni9Ti, Division titanium alloy welding Levin
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膜盖Membrane cover |
A3 |
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阀杆、推杆 Stem, putting
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2Cr13、1Cr18Ni9Ti |
弹簧Spring |
60Si2Mn |
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波纹膜片 Corrugated diaphragm
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丁腈橡胶夹增强涤纶织物 Nitrile rubber, polyester fabric enhanced folder
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垫片Gasket |
橡胶石棉板、1Cr18Ni9Ti、石墨缠绕垫片 Rubber, asbestos, 1Cr18Ni9Ti, graphite spiral wound gasket
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软密封阀芯 Soft seal spool
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增强聚四氟乙烯PTFE |
填料Filler |
聚四氟乙烯、柔性石墨、不锈钢波纹管 PTFE, flexible graphite, stainless steel bellows
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三、主要技术参数The main technical parameters：
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公称通径DN |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
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阀座直径dn(mm) |
10 |
12 |
15 |
20 |
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流量系数Kv |
直线Straight line |
1.8 |
2.8
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4.4 |
6.9
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11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
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等百分比Equal percentage |
1.6 |
2.5
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4 |
6.3
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10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
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额定行程L(mm) |
10 |
16 |
25 |
40 |
60 |
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膜片有效面积Ac(cm2 |
280 |
400 |
600 |
1000 |
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公称压力PN(MPa) |
1．6、4．0、6．4 |
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固有流量特性Inherent flow characteristic |
直线、等百分比Linear, equal percentage |
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固有可调比RInherent adjustable ratio |
50：1 |
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信号范围Pr(Kpa) |
20~100、40~200、80~240段幅：20~60、60~100 |
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气源压力Ps(MPa) |
0．14~0。4 |
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允许泄漏量Allowable leakage |
硬密封：IV级、软密封：VI级Seal: IV level, soft seal: VI grade |
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工作温度tempreture(℃) |
—40~450 |
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基本误差%Basic error |
不带定位器≤±5带定位器≤±1
Without positioner ≤ ± 5 ≤ ± 1 with locator
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回差%Differential |
不带定位器≤3带定位器≤1
Without positioner ≤ 3 ≤ 1 with locator
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死区%Dead |
不带定位器≤3带定位器≤0.4
Without a locator with locator ≤ 3 ≤ 0.4
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可配附件Available Accessories |
电-气阀门定位器空气过滤减压器手轮机构
Electric - gas air filter pressure reducer valve positioner handwheel
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1528-8857-388