PURPOSE: To provide an installation mechanism of a differential pressure transmitter improving a valve unit for installation and facilitating the switching between the differential pressure measurement and zero point adjustment.
CONSTITUTION: This installation mechanism for a differential pressure transmitter 3 is provided with a high-pressure side path 4 formed between the high pressure side (a) of a differential pressure measuring line 1 and one pressure guide side (c) of the differential pressure transmitter 3, a low-pressure side path 5 formed between the low pressure side (b) of the differential pressure measuring line 1 and the other pressure guide side (d) of the differential pressure transmitter 3, and a pressure equalizing path 6 formed between the high-pressure side path 4 and the low-pressure side path 5. A valve mechanism constituted of a three-way valve and a pair of interlockable valves is provided on the low-pressure side path 5 and the pressure equalizing path 6 respectively, and individual valve mechanisms are interlocked to be operated in opposite opening/ closing states.
| JP4554251 | Gas flow rate detector |
SETO MINORU
OMICHI KUNIHIKO
FUJIKIN KK