氣動薄膜隔膜調(diào)節(jié)閥Outline QZMAT pneumatic diaphragm valve film \ QZMBT diaphragm valve pneumatic membrane pneumatic membrane by the multi-spring diaphragm actuators and components. Diaphragm valve body flow smoothly, cutting components for the elastic diaphragm, valve cover stuffing. Thus the valve control valve flow capacity than the average large and no leakage in the range of allowable pressure shut-off valve can be used. Open air, air to close by the pros and cons of the role of executive agencies to achieve. The valve is suitable for high viscosity fluids, like suspended particles, fiber media and toxic media, corrosive mediators occasions.
1、氣動隔膜閥應(yīng)垂直安裝于管道上，體積重量較大的以及使用在振動場合時應(yīng)加支承和夾固。 2、氣動隔膜閥一般應(yīng)設(shè)有旁通管路，以便在隔膜發(fā)生故障或維修時能轉(zhuǎn)換成旁路操作，使生產(chǎn)過程正常進(jìn)行，在一般不重要場合，裝設(shè)手輪機(jī)構(gòu)后可以省略旁通管路，以進(jìn)行手動操作，同時可限制閥門開度，當(dāng)手輪機(jī)構(gòu)停止使用時，應(yīng)恢復(fù)到原空檔位置，以利于自控系統(tǒng)的正常進(jìn)行。 3、清洗管道時，調(diào)節(jié)應(yīng)處于zui大開度，以便排除管道內(nèi)污物。 4、如閥體襯有防腐層，安裝在管道上時，應(yīng)采用耐腐蝕軟墊，并注意不使閥體法蘭密封面受損。 5、對隔膜及襯里應(yīng)定期檢查，防止因腐蝕和破裂而損壞其它零件和造成事故。 1, pneumatic diaphragm valves should be installed vertically in the pipe, the volume and the use of larger weight should be added where the vibration support and clamping. 2, pneumatic diaphragm should generally be equipped with bypass piping, so that the diaphragm failure or maintenance can be converted into bypass operation, the normal production process, in general, important occasions, installation of hand wheel can be omitted after the next through the pipeline, for manual operation, and limits the valve opening, when the hand wheel to stop the use, should be restored to the original neutral position to facilitate the automatic control system normally. 3, cleaning pipes, adjust the maximum opening to be in order to rule out the dirt inside the pipe. 4, a coating, such as body lining, installed in the pipe should be corrosion-resistant cushion, and pay attention not to damage the valve body flange sealing surface. 5, the diaphragm and the lining should be checked regularly to prevent rupture due to corrosion and damage other components and cause an accident. |
主要技術(shù)性能指標(biāo)Main performance indicators
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性能Performance
| 技術(shù)指標(biāo)Technical Specifications | |
不帶定位器Without positioner | 帶定位器With locator | |
基本誤差％ Basic error% | ±10 | ±1.5 |
回差％ Differential% | 8 | 1.5 |
死區(qū)％ Dead% | 6 | 0.6 |
可配附件 Available Accessories | 電氣定位器或電/氣轉(zhuǎn)換器 空氣過濾減壓器 電磁閥 手輪機(jī)構(gòu)等 Electrical locator or electric / pneumatic converter air filter pressure reducer valve handwheel, etc. | |
額定流量系數(shù)Kv偏差％ Rated flow coefficient Kv deviation% | ±20 | |
|
公稱通徑 DN（mm） | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | |||
額定流量系數(shù)Kv Rated flow coefficient Kv | 8 | 12 | 16 | 28 | 60 | 67 | 90 | 160 | 300 | |||
公稱壓力（MPa） | 1.0 | |||||||||||
配用執(zhí)行機(jī)構(gòu)型號 Equipped with the actuator model | ZMA（B）-2 | ZMA（B）-3 | ZMA（B）-4 | |||||||||
關(guān)閉時 允許zui 大壓力 MPa | 信 MPa | P2=0 | 120 | 0.9 | 0.9 | 0.40 | 0.40 | 0.30 | 0.2 | 0.2 | 0.1 | 0.05 |
140 | 1.0 | 1.0 | 0.80 | 0.80 | 0.60 | 0.4 | 0.4 | 0.2 | 0.10 | |||
P1=P2 | 120 | 0.45 | 0.45 | 0.20 | 0.20 | 0.15 | 0.1 | 0.1 | 0.05 | 0.02 | ||
140 | 0.9 | 0.9 | 0.40 | 0.40 | 0.30 | 0.2 | 0.2 | 0.1 | 0.05 | |||
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