EagleBurgmann international
EagleBurgmann WORLDWIDE
With around 250 locations and 90 serve centers, we are represented in the most important economic regions of the world. The advantages are clear: short paths to our customers, fast response times and a shared language.
Products
API Plan 11
API Plan 11
Recirculation from the pump discharge through a flow control orifice into the seal chamber.
A Flow control
Seal chamber details
1 From high pressure region of pump (pump discharge or pump discharge piping)
2 Flush (F)
3 Quench (Q)
4 Drain (D)
5 Seal chamber
Example seal: EagleBurgmann H75VA4-S single pusher mechanical seal.
P&ID according to API
Features
- Default flush plan for all single seals.
- Acts as a flushing as well as a self-venting plan for horizontal pumps.
- Helps in creating additional vapor pressure margin in the seal chamber.
- Uses a flow control orifice(s) to restrict the flow of flush fluid going to the mechanical seal.
- Use of a distributed flush makes the cooling and lubrication more effective.
Application
- Normally applicable for all general duties except pumps with less differential between discharge and seal chamber pressures.
Remarks, checkpoints
- The orifice size and/or the number of orifices for high head applications must be calculated very carefully. Minimum orifice size should be 3 mm (1/8").
- Throat bush clearance and orifice sizing together both ensure the proper flow of flush fluid to the seal.
- Always check the difference between the discharge and the seal chamber pressure. If the difference is too low, Plan 13 must be preferred.
- Use for media with solids or abrasives or polymerizing media to be avoided.
- Orifice clogging can be confirmed by checking pipe surface temperatures upstream and downstream of the orifice.
Pump media characteristics
- Clean, non-polymerizing fluids with moderate temperatures.
Location, function
- Process side
- Flushing and cooling
Configurations
1CW-FL, 1CW-FX, 2CW-CW, 2CW-CS, 3CW-FB
3CW-FF*, 3CW-BB*, 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.
Contact us
Follow the direct link to your API 682 4th ed. contact
API piping plan tool
Download the free EagleBurgmann API piping plan tool and benefit from useful and practical information
Excellence in Practice
With our free e-mail newsletter „Excellence in Practice“, you will receive first-hand information about current products, services, references and worthwhile industry insights.
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.