P991 explosion proof type differential switch series are bellows type, and these are primarily used for detecting the draft pressure in thermal power plants.
Fluid |
Air and gas |
Repeatability |
±1.5 % of full range |
Dead band |
Fixed. 0.25 ~ 0.8 kPa or less |
Differential pressure range (kPa) |
0 ~ 4 kPa to 0 ~ 20 kPa |
Static pressure |
500 kPa |
Working temperature |
Ambient : -20 ~ 65 °C Fluid : Max. 60 °C |
Degress of protection |
EN60529/IEC529/min IP65 |
Pressure connection |
Stainless steel (316L SS) |
Element |
Bellows : Stainless steel (316L SS) Gasket : PTFE |
Mounting |
Surface wall mounting |
Setpoint adjustment |
Internal |
Contact |
One SPDT Two SPDT (Only available with single setpoint) |
Contact rating |
SPDT contact rating AC 125 V / 250 V, 15 A DC 125 V, 0.4 A for resistance load DC 125V, 0.03 A for inductive load |
Conduit connection |
¾" PF (F) |
Process connection |
¼" NPT (F) |
Operating environment |
Hazardous area refer to the explosion-proof item for information |
Certificates |
KCS Ex d IIC T6 |
Option |
3-way manifold valve 5-way manifold valve |
Manufacturer |
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Datasheet:
All features and specifications subject to change without notice, delivery subject to availability, correction of errors and omissions excepted.