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使用双作用式执行器，先确定阀门的扭矩，水蒸气或非润滑的介质增加25%安全值；非润滑的干气介质增加60%安全值；非润滑用气体输送的颗粒介质增加100%安全值；对于清洁、无摩擦的润滑介质增加20%安全值，然后根据气源工作压力，查找双作用扭矩表，可得到准确的STD型号，例如：气源压力只有5bar，控制一个需要扭矩180N.m球阀，介质为非润滑的水蒸气，考虑到安全因素，增加20%等于225N.m
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SBL-800B2/Q3210 800A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-400B2/Q4220B 250A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4220B 315A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4220B 350A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4220B 400A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3220 250A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3220 315A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3220 350A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3220 400A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-630B2/Q4220B 400A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q4220B 500A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q4220B 630A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3220 400A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3220 500A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3220 630A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q4220B 700A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q4220B 800A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q3220 700A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q3220 800A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-400B2/Q4230B 250A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4230B 315A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4230B 350A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4230B 400A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3230 250A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3230 315A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3230 350A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3230 400A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-630B2/Q4230B 400A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q4230B 500A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q4230B 630A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3230 400A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3230 500A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3230 630A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q4230B 700A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q4230B 800A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q3230 700A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-800B2/Q3230 800A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-400B2/Q4240B 250A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4240B 315A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4240B 350A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q4240B 400A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3240 250A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3240 315A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3240 350A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-400B2/Q3240 400A 0.06s,0.3s,0.5s可调 300mA,500mA可调
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SBL-630B2/Q4240B 400A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q4240B 500A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q4240B 630A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3240 400A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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SBL-630B2/Q3240 500A 0.06s,0.3s,0.5s可调 300mA,500mA,1000mA可调
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