EagleBurgmann international
EagleBurgmann WORLDWIDE
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Products
API Plan 22
API Plan 22
Recirculation from pump discharge through a strainer, a flow control orifice and a cooler into the seal chamber.
A Strainer
B Flow control orifice
C Cooler
D Temperature indicator
Seal chamber details
1 From high pressure region of pump (pump discharge or pump discharge piping)
3 Flush (F)
4 Quench
5 Drain (D)
6 Seal chamber
Example seal: EagleBurgmann LY9TC single metal bellows mechanical seal.
P&ID according to API
Key
2 Strainer
TI Temperature indicator
Features
- Similar to Plan 21 but with the addition of a strainer to remove occasional solid particles.
- Acts as a flushing as well as a self-venting plan for horizontal pumps.
- Uses a flow control orifice to restrict the flow of flush fluid going to the mechanical seal.
- Improves the product temperature margin thus avoiding vapor formation.
Application
- Slightly contaminated (fluids with suspended solids), non-polymerizing fluids with high temperatures.
Remarks, checkpoints
- Strainer to be installed before the orifice.
- Strainers often have a tendency to choke and thus lead to starvation and, eventually, failure of the mechanical seal.
- Minimum size of the orifice should be 3 mm (1/8").
- Cooler duty is high, leading to fouling and plugging on the water side.
- This plan does not function reliably enough to achieve a three-year operating life and is therefore not generally recommended. Plan 32 or a dual pressurized seal is a recommended option for such duties.
Pump media characteristics
- High temperature with some suspended solids.
- Close to vaporization point.
Location, function
- Process side
- Flushing and cooling
Configurations
1CW-FL, 1CW-FX, 2CW-CW, 2CW-CS, 3CW-FB
3CW-BB*, 3CW-FF*, 3NC-FB*, 3NC-BB*, 3NC-FF*
* Remark: The configurations listed for each individual piping plan are to be understood as recommendations including possible utilizations which may also be applied.
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The Eagleburgmann Group
Sealing technology for plants and machines
EagleBurgmann is one of the worldwide leading providers of industrial sealing technology. Mechanical seals, seal supply systems, magnetic couplings, carbon floating ring seals, expansion joints, gaskets and packings as well as comprehensive services are used wherever reliability and safety are needed.
Mechanical seals and more
Sealing technology by EagleBurgmann is used worldwide in oil and gas industries, refineries, the petrochemical, chemical, and pharmaceutical industries, food processing, energy, water, mining, paper, aerospace, and other industries. Close to 5,800 employees provide their ideas, solutions, and commitment so that customers can rely on our sealing technology.
What makes us stand out is our excellent quality, great innovative capacity, and an extensive product portfolio for nearly all industrial processes and fields of application. Our product portfolio includes everything from mechanical seals and seal supply systems to magnetic couplings, carbon floating ring seals, expansion joints, and gaskets and packings as well as comprehensive services. Since we are part of the German Freudenberg and Japanese EKK group, we have all the necessary resources for a firmly based reliable partnership.