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 

Công tắc áp suất chênh áp phòng cháy nổ P991 (Weather proof)