SPB6 Barrier fluid system
with bladder accumulator

SPB6 Barrier fluid system
with bladder accumulator

SPB6 Barrier fluid system <br/>with bladder accumulator
SPB6002A4

A From mechanical seal
B To mechanical seal
C Fill
F Drain
H N2 Precharge

SPB6 Barrier fluid system
with bladder accumulator

Features

Pressurized barrier system (closed circuit) for use in seal systems with high pressures and/or for hazardous/environmentally harmful processes. The SPB6000A4 (Plan 53B) range is available with a pressure accumulator, cooler (finned tube, water or air cooler with fan) and a wide range of instruments.
A refilling unit has to be provided.

Advantages

  • Pressurization is by means of a pre-loaded bladder accumulator
  • The nitrogen is separated from the barrier medium by membranes in the accumulator: nitrogen cannot get into the barrier medium or process medium
  • Barrier pressure is created without any need for connection to a nitrogen supply
  • Available with finned tube, water or air coolers with fan
  • Modular system: combination with a wide range of system components/instruments possible

Standards and approvals

  • API 682 / ISO 21049
  • API 682 4th ed. Cat. 2/3 - 3CW-FB
  • API 682 4th ed. Cat. 2/3 - 3CW-BB
  • API 682 4th ed. Cat. 2/3 - 3CW-FF
  • API 682 4th ed. Cat. 1 - 3CW-FB

Functional description

The SPB6000A4 is designed to perform the following functions of a barrier system:

- To pressurize the buffer chamber
- As leakage compensation
- To cool the seal

Pressurization (> process pressure) prevents the process medium from getting into the barrier circuit or the atmosphere. Pressurization is supplied by a pressure accumulator which is pre-loaded with nitrogen. Circulation in the barrier circuit occurs via the thermosiphon principle or by forced circulation, e.g., with a pumping screw.

Notes

Design and production in accordance with EU Pressure Equipment Directive PED 2014/68/EU available.
Design, calculation and production acc. to ASME VIII, Div. 1 available.

3rd party inspection, ASME U-stamp on request.

Recommended piping plans




Product variants

Designation SPB6000A4 SPB6001A4 SPB6002A4 SPB6003A4
Design code ASME VIII, Div. 1 PED 2014/68/EU ASME VIII, Div. 1 PED 2014/68/EU
Type of cooler Air
cooler a)
Water
cooler b)
Air
cooler a)
Water
cooler b)
Air
cooler a)
Water
cooler b)
Air
cooler a)
Water
cooler b)
For shaft diameters
≤60 mm (acc. to API 682)
For shaft diameters
>60 mm (acc. to API 682)
Bladder accumulator (liters) 20 20 35 35
Allowable pressure1) 44 bar (638 PSI) 44 bar (638 PSI) 44 bar (638 PSI) 44 bar (638 PSI)
Allowable temperature -
bladder accumulator1)
-20 °C … +90 °C
(-4 °F … +194 °F)
-20 °C … +90 °C
(-4 °F … +194 °F)
-20 °C … +90 °C
(-4 °F … +194 °F)
-20 °C … +90 °C
(-4 °F … +194 °F)
Allowable temperature -
system1)
-20 °C … +90 °C
(-4 °F … +194 °F)
-20 °C … +90 °C
(-4 °F … +194 °F)
-20 °C … +90 °C
(-4 °F … +194 °F)
-20 °C … +90 °C
(-4 °F … +194 °F)
Cooling capacity –
with water cooled heat exchanger (kW)2)
10 10 10 10
Cooling capacity –
with air cooled heat exchanger (kW)2)
2.0 2.0 2.0 2.0
Metal parts 316/316L 316/316L 316/316L 316/316L
Accumulator CrMo steel CrMo steel CrMo steel CrMo steel
Bladder Nitrile Nitrile Nitrile Nitrile

Other versions and connections (flanged, threaded, welded) on request.

1) Design data, permissible working values depend on the actual conditions of service.
2) The cooling performance depends on the available fluids, their temperatures and flow rates. Please contact EagleBurgmann for professionally selecting the correct heat exchanger.

a) WEL6002A4
b) WEF6100A4

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SPC6 Barrier fluid system  with piston accumulator

SPC6 Barrier fluid system with piston accumulator

Pressurized barrier system (closed circuit) for use in seal systems with high pressures and/or for hazardous/environmentally harmful processes.
The SPC6000A4 (
API Plan 53C) range is available with a pressure booster, cooler (finned tube, water or air cooler with fan) and a wide range of instruments.
A refilling unit must be provided.
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