Norriseal™ liquid level controllers

Norriseal offers a wide range of reliable and economical pneumatic liquid level controllers.

New Series EVS

Easy-access, back-mounted unit that provides liquid level or interface control for gas separator and scrubber applications. Series EVS controllers feature patented Envirosave™ snap (on/off) pilots, which prevent fugitive emissions and reduce bleeding of valuable gases.

 
• Back-mount design with flush-mount internals simplifies installation and inspection

 

• Envirosave™ pilot rated at zero leakage in U.S. EPA Natural Gas STAR Program report (contact Norriseal for details)

 

• Uses Norriseals force-balance technology, for proven reliability and long service life

 

• High sensitivity for either Top Level or Interface control

 

• Weather-resistant sealed enclosure

 

• Complies with NACE MR0175-2002

Series 1001/1001A/1001XL

Reliable and economical pneumatic liquid level controllers with no-bleed, forced-balanced operation.

Available with patented Envirosave™ snap pilot to prevent fugitive emissions and reduce bleeding of valuable gases.

 
• Snap (On/Off) or throttle (proportional) control

 

• Right- or left-hand mount

 

• Field-configurable direct or reverse action

 

• Removable door

 

• Various arm lengths, displacer sizes, diameters, connections and body materials

 

• Options include SPDT or DPDT electric switches

Optional Configurations

 
• Series 1001A Weatherproof Liquid Level Controller features a weatherproof case/cover with a secure lever latch to protect internals (options include marine service and SPDT or DPDT electric switches)

 

• Series 1001XL is designed with a back-mount connection

Series 1400, Type 72-15

Pneumatic, non-indicating level controller/transmitter used with a Series 1406 torque tube level sensor. Provides throttle control with torque tube accuracy.

 
• Pneumatic control ranges:
     
       
  • 5% to 100% proportional band for modulating

       

  • 5% to 75% snap range for differential gap or adjustable On/Off control

     

   

 

• Available in both controller and transmitter

 

• Internal 3-to-1 relay maximizes control output

 

• Click-type friction lock nozzle allows accurate set in vibration service

 

• 3 to 15 psig, 3 to 27 psig and 6 to 30 psig control signal ranges

Series 1400, Type 72-45

Pneumatic, indicating level controller/transmitter used with a Series 1406 torque tube level sensor.

 
• Dial-in set point

 

• 15% to 200% adjustable throttling control

 

• Automatic reset and/or rate action

 

• 3 t o 15 psig, 3 t o 27 psig and 6 t o 30 psig control signal ranges or adjustable differential gap action