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BFS2000
Thermosiphon Systems

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BFS2000

Product Description

  • BFS 2000 system is employed for applications in sealing systems with a wide variety of operating parameters for supplying buffer/barrier fluid to double and tandem mechanical seals. The BFS 2000 system is available in standard sizes with flat ends, sight-glasses for level monitoring and with or without cooling coil. BFS 2000 system is equipped as a standard with all the necessary system connections and brackets. Modular design combination available with a wide variety of system components and instruments selection possible such as, level switch, circulation pump, hand refill pump, thermometer, base frame etc.
  • Circulation in accordance with API 682 / ISO 21049: Plan 52, Plan 53A
Details
Item No. Description
1 Buffer/barrier fluid IN (G1/2")
2 Buffer/Barrier fluid OUT (G1/2")
3 Cooling water IN (G1/2")
4 Cooling water OUT (G1/2")
5 Filling connection with plug (G1/2")
6 Pressure gas connection (G1/2")
7 Connection for level switch or level indicator (G2")
8 Connection for hand refill pump (G1/2")
9 Universal connection (G1/2") for safety valve, flare,etc
10 Bracket for hand refill pump
11 Sight-glass

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Technical Features
  • Available with or without cooling coil
  • Optimum draining and venting is achieved because of the design of cooling water connections at top (OUT) and bottom (IN)
  • Sockets are designed with recessed gasket to avoid contamination of the circuit by thread sealant
  • Construction of the BFS 2000 is designed for demanding operating conditions up to 30 bar / 200°C
  • Design allows for varied applications due to construction in stainless steel with borosilicate sight-glasses
  • The BFS system performs all the basic functions of a buffer/barrier system for the operation of double seals:
    • To pressurize the buffer chamber
    • Leakage compensation
    • Buffer/barrier fluid is circulated by thermosiphon effect or external circulation system
    • To cool the seal
    • To selectively absorb product leakage and prevent dry running (tandem arrangement)
    • Use compressed air or nitrogen for pressurization
  • The BFS vessel must always be installed higher than the mechanical seal. The buffer/barrier fluid flows via the return pipe into the vessel and is cooled. The exchange of fluid takes place by the thermosiphon principle or by forced circulation, e.g. with a pumping screw. Connection pipes to the seal should be designed with as little resistance as possible.
  • Measuring unit
  • Level Switch
  • From PCV, we recommend using a reverse controlled pressure control valve (PCV)
  • Hand Refill Pump
  • Circulating Pump
  • Mechanical seal
  • Chemical industry
  • Oil and gas industry
  • Petrochemical industry
  • Refining technology
  • PED 2014/68/EU (Design and production in accordance with EU Pressure Equipment Directive)
  • ASME VIII, Div.1 (Design, calculation and production)

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