美国派克流量控制器
供热系统中,近端用户水流量是设计流量的2-3倍,
远端用户流量是设计流量的0.2-0.5倍,近热远冷的现象普遍存在为
了提高末端用户的室温,有些供热系统采取了增大循环流量的方法,
在流量受限制的条件下,
则采用提高系统供水温度和热源供热量的方法。
这种运行方式是靠增加电耗热耗来消除热力工况的失调掩盖水力失调的存在,
若采用该阀,则能从根本上解决水力失调的问题,
各用户的流量均能按设计流量分配,
近端和远端的用户室温全部能达到设计标准18±2℃。
通过派克的气流控制器,可以确保响应时间快和高效运作。
我们的气流控制器是半导体、生物技术、制药、化学、石化和表面处理应用的理想之选。
Porter Model 2201 Mass Flow Controllers (MFC's)
bring a new dimension to affordable mass flow control.
Model 2201 utilizes the same proven thermal sensor
assembly and unique laminar flow elements found in the
Series 200 MFC's, combined with the Porter Model EPC
Electronic Proportional Control Valve.
The result is an economical MFC that
is affordable without compromising precision,
control integrity or reliability.
Porter Model 2201 MFC's accurately measure and control flow rates of a
wide variety of gases up to 0-10 SLPM nitrogen maximum for
operating pressures up to 200 PSIG.
The Model 2201 MFC’s provide a linear flow signal output
proportional to a calibrated flow rate and are available
with D-connector PC board electrical connector. These MFC's
are of aluminum, brass and stainless steel construction & several
elastomer materials are offered to
ensure material compatibility with the process fluid.
.