Common questions

What is API plan?

What is API plan?

These are standardized flushing piping arrangements that are widely used in the industry. Customer specific variants of these plans are possible. API Piping plans help to ensure good conditions for mechanical seal operation as well as improving safety and pump reliability.

What is seal flush plan?

A flush plan is a strategic equipment arrangement that circulates fluid to or from the seal chamber in order to maintain proper lubrication, pressure, temperature, and solids management. The goal is to create an ideal work environment for the seal in order to avoid wear and failures, thus prolonging its useful life.

How does plan 53B work?

API Plan 53B circulates a pressurized barrier fluid between the inboard and outboard seals. In order to provide positive circulation through the support system and into the seal, a pumping ring is employed. Heat removal is achieved by using a heat exchanger.

What is pump Flushing?

Pipe flushing is the process where pipework is flushed using a pump and a specific fluid to remove impurities, flush sludge or oil from extensive runs of pipework.

What is a bladder accumulator?

Bladder accumulators provide a means of regulating the performance of a hydraulic system. They are suitable for storing energy under pressure, absorbing hydraulic shock, dampening pump pulsation and flow fluctuations. As system pressure falls, the accumulator’s stored fluid is returned to the system under pressure.

What is plan 23 of Flush Plan 1?

Flush Plan 1 Pump Mechanical Seal Flush Best Practices. A flush Plan 23 is used on single seals, and consists of piping (usually tubing) connected to the seal and a cooler. 2 Pump Mechanical Seals. See details on API plan 32 in B.P. 3 Machinery Failure Analysis and Troubleshooting. 4 General Information. 5 Mechanical Seals

What is a plan 23 system?

A Plan 23 is also a “closed” system. Fluid circulates around from the seal chamber to the seal cooler and back without a natural means for venting gases or vapor from the system. All Plan 23s must be designed with a high point vent (or vents) to fully remove all vapor from the seal chamber, piping, and seal cooler prior to operation.

What is a plan 23 bushing?

Plan 23 is defined as a circulation of process fluid from the seal chamber, through a seal cooler, back into the seal chamber. A bushing is required in the back of the seal chamber to minimize the interchange of the lower temperature process fluid in the seal chamber and the higher temperature fluid in the pump casing.

What is plan 23 fluid circulation?

Fluid circulation in a Plan 23 is created by a pumping device on the rotating seal. While these pumping devices (or pumping rings) can create flow, they cannot overcome significant friction losses in the piping system.