Flow Trip Point Calculator

Gas Pressure Switch Size
AP74 Trip Point* AP74B Trip Point*


Specific Gravity: 0.59
Molecular weight: 0.02
002 AP74
005 AP74
010 AP74
025 AP74
050 AP74
100 AP74
0225AP74B
0350AP74B
0500AP74B
0950AP74B
1100AP74B
1650AP74B
2600AP74B
3000AP74B
4000AP74B
5000AP74B
6000AP74B
* Trip Point is in slpm for selected gas and pressure.
 CAUTION !   Flow switch sizing requires a safety factor. Refer to PN 423 (AP 74 & 74B Application Guide) in Tech Briefs for instructions.