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产品介绍
Model 63SUL常数差流量控制器特点和优点
Model 63SUL常数差流量控制器设计容纳液体或气体和OEM广泛需求粉末涂料提供了改进的耐腐蚀性描述63系列常微分继电器主要用于与外部的针形阀，在连续可调范围为液体或气体的体积流量的结合常数。气体流量的应用，压缩必须如果恒流量需要考虑。因此，模型可用于恒定的上游或下游的参考压力。液体是不可压缩的，恒定的流量，也将是一个恒定的流量，无论上游还是下游压力。因此，质量流量是独立的压力变化。继电器的针形阀的可调范围和容量的确定。四种模式可供选择。规格范围：@ 20 psig供应模型和模型63bu 63su：zui大1.1 SCFMzui低：0.01 SCFM模型及模型63bul 63sul：zui大：2800 sccm的zui低：13 sccm的供应压力：zui小：至少5磅大于针阀控制器组合zui大的下游压力。
Features & Benefits Versatile and design accommodates liquids or gases and wide range of OEM needs Powder coating provides improved corrosion resistance Description The Series 63 Constant-Differential Relays are used in conjunction with an external needle valve to provide constant volume flow rates of liquids or gases over a continuously adjustable range. For gas flow applications, compressibility must be considered if a constant mass flow is desired. Therefore, models are available for constant upstream or downstream reference pressure. For liquids, which are not compressible, the constant volume flow will also be a constant mass flow, regardless of upstream or downstream pressures. As such, mass flow is independent of pressure changes. The relay’s needle valve determines rangeability and capacity. Four models are available. Specifications Range Limits ：@20 psig supply Model 63BU & Model 63SU：Maximum: 1.1 scfm Minimum: 0.01 scfm Model 63BUL & Model 63SUL：Maximum: 2800 sccm Minimum: 13 sccm Supply Pressure：Minimum: At least 5 psi greater than the maximum downstream pressure of the needle valve-controller combination
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