What is API seal 11?
What is API seal 11?
API seal plan-11 is one of the flushing plans that are implemented for single mechanical seals. The flushing fluid recirculates from the pump discharge to the seal through a control flow orifice. The flushing fluid removes the heat generated in the seal chamber due to the rotation of the mechanical seal faces.
What is flushing in mechanical seal?
Flushing of mechanical seals, on large industrial pumps, is used to extend the life of the seal by cleaning and/or cooling the seal. In either case a step-up in pressure, and/or flow control may be required, and a small Micropump pump is often used for that purpose.
What is seal plan for pump?
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.
What is quench in mechanical seal?
Quench is the term used for an arrangement that applies an unpressurised external fluid to a mechanical seal’s outboard faces. Lubrication/cooling of the stand-by seal. Exclusion of air: prevents the leakage from reacting with the atmosphere (e. g. crystallisation of the leaking fluid)
How does plan 11 work on an API pump?
API Plan 11 recirculates flow from a high‐pressure section of the pump, typically the discharge piping, through a flow control orifice to the seal. Plan 11 is the default flush plan for most pumps. Kit components shown solid and include some optional components.
Do you need an API seal piping plan?
To keep mechanical seal systems functioning as long as possible, we recommend using standardized seal piping plans. Detailed API seal piping plans ensure minimal seal face wear by maintaining the optimal seal chamber environment.
Which is the Flush Plan on an API pump?
API Plan 11 recirculates flow from a high‐pressure section of the pump, typically the discharge piping, through a flow control orifice to the seal. Plan 11 is the default flush plan for most pumps. API Plan 11 Kit components shown solid and include some optional components.
Which is plan 54 for a mechanical seal?
Plan 54 involves the circulation of clean pressurized barrier fluid sourced from an external system. It is used in Arrangement 3 seals where barrier liquid pressures should remain at 20 psi or higher. Per the API, Plans 62, 65A, 65B, 66A, and 66B are appropriate quench seal plans.
