Quick Answer: What Is API Plan?

What is barrier fluid?

A dual mechanical seal offers a second (outer) seal to contain the pumped fluid by creating a cavity or chamber between the inner and outer seal that can be filled with a fluid.

When pressurized, it forms a barrier between the pumped fluid and atmosphere and is known as a barrier fluid..

Which type of pump is most efficient?

In general, a reciprocating pump is more efficient than a centrifugal pump. Reciprocating machines are generally applied on low-flow/high-head service. Centrifugal pumps can have efficiencies as low as 40 percent on low-flow/high-head service.

What is API standard for pumps?

A type of pump designed to meet the American Petroleum Institute (API) 610 standard for pumps handling hydrocarbons. They come in many different forms and may employ a number of pumping mechanisms. The API 610 standard is limited to centrifugal pumps, but API process pumps come in many different configurations.

What is API plan 11?

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.

What is API plan 52?

An API Plan 52/ANSI Plan 7352 is an unpressurized dual seal system which is used in services where no leakage to atmosphere is tolerated. The system consists of dual mechanical seals with a buffer fluid between the seals. … These products will flash in the supply tank and the vapor can escape to the vent system.

What is API plan 53b?

API Plan 53B circulates a pressurized barrier fluid between the inboard and outboard seals. The source of pressurization is a bladder accumulator. Plan 53B has the advantage of not allowing gas absorption into the barrier fluid which may allow for operation at higher pressures than Plan 53A.

What is seal chamber?

The component located below the lowest pump section and directly above the motor, in a standard electrical submersible pump (ESP) configuration, is the seal-chamber section. … The seal-chamber section is basically a set of protection chambers connected in series or, in some special cases, in parallel.

What is API standards for pipes?

API 570 – Piping Inspection Code is an inspection code developed and published by the American Petroleum Institute (API). The inspection code covers in-service inspection, rating repair, and alteration of metallic and fiberglass-reinforced plastic (FRP) piping systems and their respective pressure relieving devices.

What is Seal 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. … There are many types of flush plans that are selected for certain applications, fluids, and seal configurations.

How many types of mechanical seals are there?

There are a number of mechanical seal types, each providing advantages for specific applications: the pusher type, the non-pusher, unbalanced, balanced, conventional, and cartridge type.

What is seal flushing?

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.

Do mechanical seals need lubrication?

Mechanical Seals Need Lubrication and Parallel Faces. A mechanical seal is mysterious to most users, but its design is very simple. … If the pumpage does not provide sufficient lift or lubrication, a seal support system is used to supply a lubricating fluid.

What is mechanical seal and its types?

Mechanical seals essentially consist of one or more pairs of optically flat, highly polished faces, one stationary in the housing and one rotating, connected to the drive shaft (Figure 3). The faces require lubrication, either by the pumped liquid itself or by a barrier fluid.

What is API standard code?

API specifications are recommended practices developed based on insight gleaned from the petroleum and petrochemical industry – which makes sense given that API stands for American Petroleum Institute. API standards are intended to encourage safety in the oil and natural gas industries specifically.

What is API plan 32?

API Plan 32 delivers a clean flush fluid into the seal chamber from an external source. Typically used with a close-clearance throat bushing, this arrangement can be used to ensure a higher pressure in the seal chamber.