P991 Series_Explosion proof type differential pressure switch (Up to 20 kPa)
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 |
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Certificates
