by-om | 規(guī)格std | flange | gas | 形狀 | 流方向 | 流體名fluid | 流量單 位 | max流量 | 設計壓力/溫度 | 材 質(zhì) | opt | 特殊項目for specif.item | ||
by-om | 15 | f | g | -0 | r | 1 | -c | 1.2 | -1atm/20℃ | -bs | -v | 記入例for instance of entry/說明desc-ription | ||
fpm | vitom packing | |||||||||||||
v | with stop valve | |||||||||||||
bs | bsbm | |||||||||||||
304 | sus304/scs13 | |||||||||||||
-1atm/20℃ | shows designed pres./temp.*5 | |||||||||||||
1.2 | shows max flowrate.*4 | |||||||||||||
b | nl/min | |||||||||||||
c | nm3/min | |||||||||||||
e | sl/min | |||||||||||||
f | sm3/min | |||||||||||||
z | 特殊 for specif.unit *3 | |||||||||||||
1 | air | |||||||||||||
2 | n2 | |||||||||||||
3 | o2 | |||||||||||||
4 | co2 | |||||||||||||
5 | ar | |||||||||||||
6 | he | |||||||||||||
7 | c3 h8 | |||||||||||||
9 | 特殊 for specif.fluid *2 | |||||||||||||
r | lefu-right | |||||||||||||
l | right-lefu | |||||||||||||
u | down-up | |||||||||||||
d | up-down | |||||||||||||
0 | 標準 standard | |||||||||||||
9 | 特殊for specif.shape*1 | |||||||||||||
g | shows for use in gas | |||||||||||||
f | shows flange connecting type only.no need to shuoe.if it is rc connection | |||||||||||||
規(guī)格 | max 流量 max flowrate | flange connection | rc connection | |||||||||||
15 | ~200nl/min | 15a | rc 1/2 | |||||||||||
20 | ~500nl/min | 20a | 3/4 | |||||||||||
25 | ~1.2nm3/min | 25a | 1 | |||||||||||
32 | ~2nm3/min | 32a | 11/4 | |||||||||||
40 | 40a | 11/1 | ||||||||||||
50 | ~3nm3/min | 50a | 2 | |||||||||||
65 | ~5nm3/min | 65a | - | |||||||||||
原理.特點principle/features
byflow (flow dividing indicator ) is a flowmeter which indicates the flowrate in terms of the flow indicating part of differential paessure type flowmeter and employs a mechanism pf orifice.
1. restrictions does not place on differential pressure (low differential pressure can be also measurde).
2. se-lection can be made on flow direction.
3. no need to stop flowing in mainstream pipe at time of cleaning and replacing graduated tube with new one when damaged (if furnishing it with valve).
4. scale ranges is five (max flowrate)to one (minimum flowrate).
5. it is required to set up a straight pipe for accurate measurement in the back and forth or the meter (see next papg).
6. by-om type is specifically designed compact.