Explosion proof type differential pressure switch (Up to 20 kPa)
Type: P991
 
Service intended
 
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
 
 
Standard features
 
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
 
 
Download:  CATALOG