Liquid Level Transmitters

Documents

Order by : Name | Date | Hits [ Ascendant ]

Purge Control Purge Control

Date added: 01/03/2009
Date modified: 12/10/2012
Filesize: 568.04 kB
Downloads: 8515

purgecontrol780

• Continuous Level Measurement
• Simple Proven Sensing Technique
• Suitable for Corrosive or Aggressive Liquids

When purged with compressed air, liquid within the downpipe is displaced by air pressure equal to the hydrostatic force of liquid in the tank. If carefully regulated at a low rate of flow, air pressure will constantly maintain equilibrium against the force of the liquid. Output is proportional to liquid depth and can be transmitted as an electronic 4-20 mA signal or pneumatically as a direct 1:1 pressure signal.

788 D/P Purge Control is a differential pressure regulator and air flow control. It generates a constant flow of compressed air to purge a downpipe. Its integral differential pressure transmitter provides 4-20 mAdc output proportional to liquid level.

APPLICATION NOTE: Available in all-pneumatic configurations for hazardous area service.

9120-thumb

For a pdf of the Purge Control Data Sheet, click the 'Download' button below.

LiquiSeal Purge Control LiquiSeal Purge Control

Date added: 06/30/2015
Date modified: 06/30/2015
Filesize: 610.72 kB
Downloads: 8363

dp738

• Continuous Level Measurement
• Simple Proven Sensing Technique
• Suitable for Corrosive or Aggressive Liquids

When purged with compressed air, liquid within the downpipe is displaced by air pressure equal to the hydrostatic force of liquid in the tank. If carefully regulated at a low rate of flow, air pressure will constantly maintain equilibrium against the force of the liquid. Output is proportional to liquid depth and can be transmitted as an electronic 4-20 mA signal or pneumatically as a direct 1:1 pressure signal.

LiquiSeal D/P purge control is a fully integrated air purge regulator and level transmitter. Operation is based on the control regulating a continuous 1 cfh (cubic foot per hour) flow of compressed air into the tank downpipe. An internal differential pressure sensor element converts resulting pressure into a 4-20 mAdc two wire signal.

APPLICATION NOTE: Available in all-pneumatic configurations for hazardous area service.

9110-thumb

For a pdf of the LiquiSeal Data Sheet, click on the 'Download' button below.

Downpipe Check Valve Downpipe Check Valve

Date added: 05/08/2012
Date modified: 08/16/2013
Filesize: 562.22 kB
Downloads: 6047

downpipevalve

• Simple Inline Installation
• Float Check Avoids Pressure Drop
• Guards Against Siphoning From Tank

This engineered component will help you prevent siphoning or backflow of liquid through a downpipe installed in tank level gauging applications. With the KING-GAGE® Downpipe Backflow Check Valve, you can guard against liquid traveling up through the downpipe and into the system pressure lines. It utilizes a specially designed float pin that rises up to seal the valve shut when liquid enters from the downpipe through the bottom of the unit. The Model 6563 Downpipe Check Valve is well suited for use on downpipe systems employing KING-GAGE Purge Control or LiquiSeal Purge Control liquid level transmitters.

9240_marine-downpipecheckvalve-datathumb

For a pdf of the Downpipe Check Valve Data Sheet, click the 'Download' button below.