Pump

Due to the extensive communication network with China, Metanoia company has the possibility of supplying all kinds of industrial pumps with capacities of up to 10,000 cubic meters per hour and with pressures of up to 300 atmospheres

1- Ruite Pump Company, manufacturer of slurry pumps

2- LEO pump company, manufacturer of industrial pumps with high capacity

3- Kaiquan pump company, manufacturer of industrial pumps with medium capacity

4- Sanlian pump company, manufacturer of industrial pumps with medium capacity

The company’s catalog completed projects production stages

An explanation of API 610 centrifugal pump configurations

In this document we explain centrifugal pump terminology and the API 610 pumconfigurations. API is the abbreviation for American Petroleum Institute which is the main U.S trade association for the oil and natural gas industry representing organisations involved in producing, refining, distributing, and many other aspects. Centrifugal pumps are one of the most common categories of rotating equipment found in these industries and the American Petroleum Institute created the API 610 standard for these pumps. API 610 classifies various types of centrifugal pumps which are primarily divided into three groups: OH, BB and VS.

OH – Overhung
pumps – The impellers
of these pumps overhang a radial bearing and so the support
must take care of all forces, including
the overhung mass and the rotor dynamic
and hydraulic forces.

BB – Between bearing pumps – The impellers
of these pumps are suspended
between the two supports with the impeller
placed horizontally, in the same orientation as the bearings.

VS – Vertically suspended pumps – The casing and impellers
of these pumps are submerged
in the pumped fluid, suspended
on a vertical column below a support
plate at the top of the tank to which the motor and thrust bearing are mounted.

Typical applications for these
three types of API 610 pumps are:

OH –
Overhung pumps: Produced Water;
Feed Pump; Booster Pump; Hydrocarbon Transfer; Condensate BB – Between bearing pumps: Cooling
Water; Boiler Feed; Well Injection;
Feed Water; Crude Transfer VS – Vertically suspended pumps: Open Drain; Closed Drain;
Crude Oil Transfer;
Firewater; Seawater Lift

Terminology

There is a lot of terminology used for API 610 pumps, some general for all API 610 pumps and some specific
to OH, BB or VS pumps. The following details the terminology that is used in describing each of the pumps in the later sections.

Applicability
Terminology		OH	BB	VS
*Installation*
Horizontal	The pump is designed to be installed parallel to level ground.	l	l
Vertical	The pump is designed to be installed perpendicular to level ground.	l		l
*Mounting*
Foot-mounted	The pump casing is provided with feet designed for fastening the pump onto a foundation or base plate.	l	l
Centerline supported	The pump is supported on the centerline of the casing providing for even thermal expansion on each side of the pump casing support enabling greater nozzle load capability than a foot-mounted casing.	l	l
Plate mounted	The pump is fixed to a suitably sized and rated plate that is mounted on a tank and the wetted end of the pump in the fluid in the tank or sump.			l
*Coupling*
Flexible	The coupling that transmits torque from one shaft to another is designed with some flexibility and so can accommodate small angular and parallel misalignment, reduce vibration and prolong the working life of the pump.	l	l	l
Rigid	The coupling that transmits torque from one shaft to another has no flexibility, the shafts are bolted rigidly together, which enable precise shaft alignment, however any misalignment will negatively impact pump performance and life.	l	l	l

*Drive method*
Long coupled	A separate bearing bracket is attached to the pump housing and the motor is usually mounted on a support or baseplate.	l	l
Close coupled	The pump is directly mounted to the motor shaft with all forces being taken care of by the bearings in the motor.	l
High-speed integral geared	The pump is installed with an integral speed-increasing gearbox.	l		l
Lineshaft	The drive element between the motor and the impeller is supported by intermediate and lower bearings in a column within the fluid in the tank or sump.			l
Cantilever	Only the impeller and casing are submerged in the fluid in the tank or sump and all joints, including seals, bearings, bushings, and suction check valves, are located above the tank level out of the fluid with no intermediate shaft support.			l
*Casing*
Single casing	The part of the pump that includes the impeller chamber and volute / diffuser, the single case contains the pumping pressure.	l	l	l
Double casing	A separate additional case surrounding the inner single case (that contains impeller chambers and volute / diffuser). The double casing can contain higher pressure than a single case and is frequently used with multistage pumps.		l	l
Axially split	A split pump casing with the principal joint parallel to the shaft centerline.		l
Radially split	A split pump casing with the principal joint perpendicular to the shaft centerline.	l	l	l
Diffuser	A set of stationary vanes / channels fitted in a diffuser casing / ring that convert velocity into pressure energy, they also guide the fluid to the impeller vanes of the subsequent stage in a multistage pump.	l	l	l
Volute	A spiral-like form where liquid is discharged from the impeller into the volute casing. the volute areas increase at a rate proportional to the discharge of liquid from the impeller so that a constant velocity exists around the periphery of the impeller.	l	l	l

*Impeller*
1 and 2 stage	The pump has one or two impellers and sometimes diffusers all installed within a single volute casing.	l	l	l
Multistage	The pump has three or more impellers installed within a volute casing.		l	l
Bowl assembly	This can be one or more stages and consists of the suction case or bell, impellers, and diffuser casings. All the impellers are mounted onto a single bowl shaft.			l
Axial flow	Pumped fluid is pushed in a direction parallel to the pump shaft, axial flow pumps can provide a higher flow rate but with a lower head compared to radial flow pumps.	l	l	l
Radial flow	Pumped fluid is pushed in a direction perpendicular to the pump shaft, radial flow pumps generate higher heads than axial flow pumps but with a lower flow rate also have less pressure drop as flow increases.	l	l	l
*Discharge*
In-line	The discharge of the pump is arranged in the same plane as the suction for direct installation into the pipework.	l	l	l
Top	The discharge of the pump is arranged tangential to the vertical centreline.	l	l	l
Column	The discharge goes through the same support column as the driven shaft for the impeller.			l
Separate	The discharge goes through a separate pipe to the support column containing the driven shaft for the impeller.			l

API 610 Pumps

API 610 divides centrifugal pumps into three groups: Overhung
(OH), Between Bearings (BB) and Vertically
Suspended (VS). The following section
details the various
configurations within each category.

OH

An
API 610 OH pump is an “Overhung” pump where the impeller is mounted on the end of a shaft which is “overhung”
from its bearing supports. The impellers of OH

pumps can be mounted
horizontally or vertically.

Type

Installation

Mounting

Coupling

Drive

Discharge

Typical Applications

Image

Hor

Ver

Foot

CLine

Flex

Rigid

Long

Gearbox

Inline

Top

OH1

A
flexibly long coupled horizontal, foot mounted, single stage, end suction,
overhung pump. OH1 pumps, according to API 610 specifications, are long coupled, however Amarinth can also provide pumps that are close coupled.

– Produced water

– MEG reclamation

– Boiler feed

OH2

A
flexibly long coupled horizontal, centerline mounted, single stage, end
suction, overhung pump. OH2 pumps, according
to API 610 specifications, are long coupled, however Amarinth can also
provide pumps that are close coupled.

– Amine

– Booster pump

– Fuel transfer

OH3

A flexibly long coupled vertical inline, single stage,
overhung pump. The pump can be mounted to a support frame or within the pipeline.

– Gas drum

– Sour water

– Sea water

OH4

A rigidly close coupled vertical inline, single stage,
overhung pump. The motor is mounted directly to the pump
housing. The pump
can be mounted to a support
frame or within
the pipeline.

– Water injection

– Fuelling

– Crude oil pipeline

OH5

A flexibly long coupled vertical inline, single stage,
overhung pump. The pump can be mounted
to a support frame or within the pipeline.

– Hydrocarbon

– Oily water

– MEG water

OH6

A horizontal or vertical, single
stage, end suction
overhung, pump that
has an integral gearbox driven by the motor with a rigid coupling mounted to the
pump housing.

– High pressure
feed

– Reverse osmosis

– Boiler feed

l = Standard

¡ = Optional

A = Amarinth low cost option, only Long Coupled is strictly
defined by API 610

BB

An API 610 BB pump is a “Between-bearings” pump where the impeller is mounted on a shaft with
the bearings at both ends so the impeller is mounted between

bearings. For all BB pumps the impeller is mounted horizontally.

Type	Casing				Impeller		Typical Applications	Image
	Single	Double	Axial Split	Radial Split	1/2 Stage	Multistage
BB1	An axially split single casing, one or two stage pump with bearings on both ends of the rotating assembly. The pump is mounted to a baseplate and driven by a motor via a flexible coupling.						– Cooling water – Sea water transfer – Produced water
	l		l		l
BB2	A radially split single casing, one or two stage pump with bearings on both ends of the rotating assembly. The pump is mounted to a baseplate and driven by a motor via a flexible coupling.						– Boiler feed – Booster – Petrochemical processing
	l			l	l
BB3	An axially split single casing, multistage pump with bearings on both ends of the rotating assembly. The pump is mounted to a baseplate and driven by a motor via a flexible coupling.						– Water injection – High pressure boiler feed – Dewatering
	l		l			l
BB4	A radially split single casing, multistage pump with bearings on both ends of the rotating assembly. The pump is mounted to a baseplate and driven by a motor via a flexible coupling. Sometimes called segmental-ring pump or ring-section pump.						– Reverse osmosis – High pressure boiler feed – Feed water pump
	l			l		l
BB5	A radially split double casing, multistage pump with bearings on both ends of the rotating assembly. The pump is mounted to a baseplate and driven by a motor via a flexible coupling. Sometimes referred to as “barrel pumps”. BB5 pumps can be made to handle very high pressures.						– Offshore crude shipping – Ethylene shipping – Onshore & offshore water flood
		l		l		l

l = Standard

VS

An API 610 VS pump is a “Vertically Suspended” pump where the casing
and impeller is suspended below
a support plate at
the end of a vertically suspended support column and submerged into the fluid to be pumped.

Type

Casing

Impeller

Discharge

Typical Applications

Image

Single

Double

Volute

Diffuser

Single

Multi

Axial

Radial

Column

Separate

VS1

A vertically suspended diffuser pump with a single casing
and an axial
impeller with its discharge through
the lineshaft column that suspends the bowl
assemblies. The pump is mounted to a support plate and driven by a flexible coupling.

– Sea water lift Pipeline transfer

– Condensate extraction

VS2

A vertically suspended volute pump with a single casing and an axial impeller with its discharge through the lineshaft column that suspends the casing. The pump is mounted to a support
plate and driven
by a flexible coupling.

– Sea water intake

– Cooling water

– Loading & unloading

VS3

A vertically suspended volute pump with a single casing and an axial impeller with its discharge through the lineshaft column. The pump is mounted
to a support plate and driven by a flexible coupling.

– Raw water intake

– Water treatment

– Cooling water

VS4

A vertically suspended, single stage,
volute pump with a single casing and a radial impeller. The discharge column
is separate to the lineshaft column. The pump
is mounted to a support plate and driven
by a flexible coupling.

– Sour water

– Hydrocarbon condensate

– Flare knock out drum

VS5

A
vertically suspended, single stage, volute pump a single casing and a radial
impeller. The discharge column is separate to the lineshaft column which is a cantilever design. The pump is mounted to a support
plate and driven
by a flexible coupling.

– Slurry

– Water treatment

– Solids handling

VS6

A
vertically suspended diffuser pump with a double casing and an axial impeller
with its discharge through the lineshaft column
that suspends the bowl assemblies. The pump is mounted to a support plate and driven
by a flexible coupling.

– Condensate extraction

– Pipeline booster

– Crude oil loading

VS7

A
vertically suspended, volute pump with a double casing and an axial impeller
with its discharge through the lineshaft column
that suspends the bowl assemblies. The pump is mounted to a support plate and driven
by a flexible coupling.

– Pipeline booster

– Condensate

– Desalination

l = Standard

¡ = Optional