可置换玻璃管，用于气体或液体

指示高容量水平气体或液体的流量刻度
刻度:127mm长
精度:±10%
量程：5-120L/M到20-500L/M空气；0.5-8L/M到1-22L/M水
温度限制:121°C
安装:垂直
浮子:316SS
连接:3/8"内螺纹
分为铜质有阀、铜质无阀、不锈钢质有阀、不锈钢质无阀几种

选型表:

无阀铜端件	有阀铜端件	有阀不锈钢端件	流量（空气）scfm(SLPM)	流量（水）GPM(LPM)
DR4101	DR4141	DR4241	0.2-4 (5-120)
DR4103	DR4143	DR4243	0.5-11 (20-320)
DR4104	DR4144	DR4244	1-16 (20-500)
DR4106	DR4146	DR4246		0.1-2 (0.5-8)
DR4108	DR4148	DR4248		0.2-4 (1-16)
DR4109	DR4149	DR4249		0.5-5 (1-22)

无阀不锈钢端件
DR4201	Stainless Steel, without Valve	0.2-4 (5-120) Flow Rate (Air)
DR4201	0.2-4 (5-120)
DR4203	Stainless Steel, without Valve	0.5-11 (20-320) Flow Rate (Air)
DR4203	0.5-11 (20-320)
DR4204	1-16 (20-500)	1-16 (20-320) Flow Rate (Air)
DR4204	Stainless Steel, without Valve	1-16 (20-320) Flow Rate (Air)
DR4206		0.1-2 (0.5-8)
DR4206	Stainless Steel, without Valve
DR4208	Stainless Steel, without Valve
DR4208		0.2-4 (1-16)
DR4209	Stainless Steel, without Valve
DR4209		0.5-5 (1-22)
DR4241	Stainless Steel, with Valve	0.2-4 (5-120) Flow Rate (Air)
DR4243	Stainless Steel, with Valve	0.5-11 (20-320) Flow Rate (Air)
DR4244	Stainless Steel, with Valve	1-16 (20-320) Flow Rate (Air)
DR4246	Stainless Steel, with Valve
DR4248	Stainless Steel, with Valve
DR4249	Stainless Steel, with Valve