Blowdown &
Control Valves


BA Series (Continuous Blowdown Valves)   Model #

Multistage trim provides precise boiler blowdown controllability and extended valve service life. Available in three ANSI classes for applications up to 3,280 psig. Designed for extended service life with flashing flow conditions and high pressure drops. Rotary 0-100 degree manual scale provides optimum settings. Available with automation, conductivity probe, and controller for precise TDS control. Two year warranty.

 
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PA Series (Intermittent Blow Off Valves)   Model #
Large annular orifice and rapid action provide effective sludge removal for blow-off applications. Minimal treated water loss. Available in three ANSI classes for applications up to 3,280 psig. ANSI B31.1 approved with upstream block valve. Designed for high pressure drop applications. Available with actuator and controller for timed actuation. Two year warranty.  
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Continuous Blowdown Valve   Model #

Valve with adjustable stage nozzle, sample valve, and electric actuator for automatically controlled continuous blowdown. automatically controlled continuous blowdown to reduce blowdown wastage with a GESTRA conductivity electrode and the continuous blowdown controller. the blowdown line is automatically closed on shutdown of the boiler plant.
Especially suited for boilers operating without constant supervision (TRD 604).

 
  • BAE 36
Features and Benefits    
  • High blowdown capacity
  • Automization of desalination made easy
  • Enables operation of boilers with constant supervision
  • Use in combination with conductivity probe LRG
  • Size DN 15 up to DN 40
  • Pressure rating PN 40 up to PN 320
   

Boiler Safety - Conductivity Electrode Unit   Model #

For the highest boiler safety, GESTRA developed the self monitoring low level alarm system. This system consists of a self monitoring single electrode and a redundant, self checking low level switch. this system is world wide proven and accepted.
The conductivity sensing electrode LRG 16-40 consists of a TDS (Total Dissolved Solids) monitoring electrode for conductivity measurement, a temperature sensor for detecting the fluid temperature and a fully integrated conductivity (TDS) transmitter
The probe works together with the LRR 1-40 controller.

 
  • LRG 16-40
    Conductivity
    Electrode
    Unit
Features and Benefits    
  • CANopen protocol
  • Temperature compensated conductivity (TDS)
  • Self adjusting operation
  • Reliable boiler water control
  • Reduced cabling and installation
   

Boiler Safety - Conductivity Control Unit   Model #

The continuous blowdown controller LRR 1-40 used in conjunction with the conductivity sensing electrode LRG 16-40 constitutes a conductivity (TDS) monitoring and control system. Electrical conductivity is used to measure boiler water TDS (Total Dissolved Solids).

 
  • LRR 1-40
    Conductivity
    Control
    Unit
Features and Benefits    
  • Two conductivity limits with one switch point each: TDS high (MAX) alarm and TDS low (MIN) alarm
  • Three position control within a predefined proportional band
  • TDS level (conductivity) monitored and maintained within a predefined control range
  • Stand-by input
  • 24 H purging pulse for continuous boiler blowdown
  • CANBus system protocol
   

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