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自力式控制阀无需外加能源，利用被调介质自身能量为动力源。自 动控制阀门介质流量，使阀后压力保持恒定的压力稳定装置。有zz Y直接作用型自力式压力调节阀、ZZYV型带指挥器操作型自力式压 力调节阀、ZZV型自力式微压调节阀、ZZD氮封装置等类型。广泛 应用于连续送气的天然气采输，城市煤气以及冶金、石油、化工等 工业生产部门。
Self-operated type control valve without external energy, the energy of the medium itself was transferred as a power source. Automatic control valve medium flow rate, the pressure stabilizing device of pressure valve to maintain constant. Have ZZY directly self operated pressure control valve, ZZYV type take command control operation type self pressure regulating valve, ZZVtype independent micro pressure regulating valve, ZZD nitrogen seal device type. Widely used in the continuous gas natural gas production and transportation, city gas, metallurgy, petroleum, chemical and other industrial sectors
Z系列自力式阀，自动控制阀门介质流量，使压力阀的稳压装置保持恒定。广 泛应用于石油、天然气生产和运输、城市煤气、冶金、石油、化工等行业。
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公称通径/Nominal Size |
DN15-DN300 使用温度/Operating temperature - 29°C~+200°C |
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公称压力/Nominal Pressure |
美洲体系/American standard : PN20(ANSI 150),50(ANSI 300); 欧洲体系/European standard : PN16,25,40 |
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流量特性/Characteristic |
快开/Qn/off |
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泄漏量/Seat leakage |
GB/T13927-2008 /切断无泄漏/No leakage |
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公称通径 |
DN15~DN250 |
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公称压力 |
PN16/PN25/CL150 |
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操作温度 |
-46℃~150℃ |
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流量特性 |
等百分比，线性，快开 |
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可调比 |
30:1、50:1、 100:1 |
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泄漏等级 |
ANSI B16.104: IV、V、VI |
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阀体材质 |
WCB/CF8/CF8M等 |
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阀内件材质 |
-法兰距符合GB/T 12221-2005 / ASME B16.10 或API609.ISO5752标准； |
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填料材质 |
WCB+F46/304+F46/316+F46/WCB+PFA/304+PFA/316+PFA |
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