In Plan 54, there is a pressurizes external barrier fluid system supplying clean liquid to the barrier fluid seal chamber. The barrier liquid is maintained at a pressure greater than seal chamber pressure. Barrier liquid is circulated by an external pump or pressure system.

Advantages:

  • Self-contained process fluid
  • Zero emissions
  • Seal cannot induce circulation

Applications:

  • Used with dual pressure seals
  • High vapor pressure fluids (light hydrocarbons)
  • Hazardous fluids
  • Toxic fluids
  • Heat transfer fluids
  • Dirty, abrasive, or polymerizing fluids
  • Mixers or agitators

Note

Use the STB NSE-54 for better operating conditions.

TS-9

The Thermosiphon TS-9 is designed for the barrier fluid supply for mechanical seals. The main application areas are single mechanical cartridge seal with integrated throttle bush or double mechanical cartridge seals.

  • Volume: max. 9 liter (2.38 gallons)
  • Material: 1.4571
  • Temperature: -30°C (-22°F) up to +120°C (248°F) *
  • Pressure area: max. 16 bar (232 psi) *
    *higher on demand
  • Flowmeter
  • Level switches
  • Thermometer (digital or analog)
  • Pressure gauge (digital or analog)
  • Pressure accumulator
  • Additional filters
  • Stands
  • Glass pipe
Additional information
Also available as Plan 52 without pressure and 53A with pressure
TS-12

The Thermosiphonystem TS-12 has a high volume for the barrier fluid supply for mechanical seals and additionally has a higher pressure range. It is available with a variety of options, like an integrated cooling coil, which has a higher cooling capacity.

  • Volume: max. 12 liter (3.17 gallons)
  • Material: 1.4571
  • Temperature: -30°C (-22°F) up to +120°C (248°F) *
  • Pressure area: max. 16 bar (232 psi) *
    *higher on demand
  • Flowmeter
  • Cooling coil
  • Level switches
  • Thermometer (digital or analog)
  • Pressure gauge (digital or analog)
  • Pressure accumulator
  • Additional filters
  • Stands
  • Circulation pump (BEH-830)
  • Backfeed pump
  • Flange
Additional information
Also available as Plan 52 without pressure or pressurized in Plan 53A or 53B
NSE 54

Designed especially for mechanical seals in high pressure surroundings, where an interruption of the barrier fluid is not allowed. These backfeed systems are designed to supply many mechanical seal support system or a number of mechanical seals by only one system. Over the past years, these types of systems have shown in field, to increase the lifetime of mechanical seals heavily.

Barrier fluid:

  • oil
  • water

Base module:

  • Volume 65 l (17 gallons) Stainless steel tank
  • asynchronous motor 400V/50Hz/1500 rpm
  • gear pump: Qmax=12 l/min
  • check valve
  • unlockable bypass
  • pressure gauge (analog)
  • relief valve
  • pressure regulating valve
  • input filter
  • level indicator
  • thermometer (analog)
  • (Special units with 50 bar and more)
  • vessel volume 250 l (66 gallons)
  • different motor voltages (for example 500V)
  • heat exchanger/ heating unit
  • flowmeter
  • level switches
  • return line unit including:
  • Thermometer (digital or analog)
  • Pressure gauge (digital or analog)
  • Pressure accumulator
  • Additional filters
Plug and Play
This product is designed to be ready to use with any system