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Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump

Product Description

Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump

PUMP Description

*~*~*~*~* GENERALS *~*~*~*~*

General for Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump

QDG series boiler feed water pump is multi-stages Centrifugal Pump. It used for boiler water feed or other industry hot water supply projects.
QDG series boiler feed water pump matches the performance, technical requirement and testing method for the international boiler projects.
This series boiler pump meet the international standard, with the feature of small volume, good performance, stable and reliable operation, and high efficiency. Besides, it is the best choice for the hot water supply projects.
It included horizontal boiler feed water pump and vertical pump.

*~*~*~*~* PERFORMANCE RANGE  *~*~*~*~*
Performance Range about Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump
Flow rate: 3~500m3/h
Head: 70~650m
Pressure: 7~65Bar
Speed: 1450~2950rpm
Max Eff: 90%

*~*~*~*~* APPLICATION  *~*~*~*~*
Application for Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump
Aerospace Oil & Gas
Building industry Power Station
Chemical Petro-Chemical
General Industry Pharmaceutical
Marine Pulp & Paper
Mining & Aggregate Water & Waste water

*~*~*~*~* ADVANTAGES *~*~*~*~*
Advantages about Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump
20 years in producing horizontal boiler feed water pump
Independent Design
advanced technology from Australia, Canada, America
Specialized Test Equipment
Anti-rust treatment casting
Supply reasonable suggestion for choosing pumps
OEM available

*~*~*~*~* DATA SHEET  *~*~*~*~*
Performance Data Sheet for Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump

Pump Type	Flow (m3/h)	Head (m)	Power (KW)	Speed (r/min)
QDG 6-25	3.75-7.5	73.5-306	4-11	2950
QDG 12-25	7.5-15	69-338.4	5.5-22	2950
QDG 12-50	7.5-15	139.5-648	18.5-75	2950
QDG 25-30	15-30	82.5-340	15-45	2950
QDG 25-50	15-30	15.78-618	22-110	2950
QDG 46-30	30-55	81-340	22-75	2950
QDG 46-50	30-55	138-666	37-132	2950
QDG 85-45	55-100	78-459	37-160	2950
QDG 85-67	55-100	183-666	90-250	2950
QDG155-67	100-185	177-684	132-400	2950
QDG280-43	185-335	114-423	160-450	1480
QDG280-65	185-355	372-680	500-800	1480
QDG450-60	335-500	171-650	360-1050	680

Construction Drawing

*~*~*~*~* CONSTRUCTION *~*~*~*~*
Construction about Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump

FAQ

*~*~*~*~* FAQ *~*~*~*~*
FAQ for Centrifugal Horizontal Multistage High Pressure Steam Circulating Boiler Feed Water Pump

Centrifugal boiler feed water pump power loss

There only a part of the mechanical power of the centrifugal pump getting from the driver equipment, convert to the centrifugal power and then delivered to the liquid power. The another part was loss. The reasons are below:

1. Hydraulic loss: Created for the liquid impact, vortex and friction in the pump. The impact and vortex hydraulic loss is because of the the liquid change the flow direction. Besides, when the liquid flow, it will have friction when meet the pump passageway.This kind of loss depend on the length, volume, shape, and surface roughness of the passageway and the liquid flow speed and other character.

2. Volume loss: It resulted for the powered liquid will channeling are leakage. The general pump volume efficiency is 0.93~0.98%. Improve the seal ring and shaft seal construction, can reduce the volume loss and increase the volume efficiency.

3. Mechanical loss: It is caused by the friction of liquid and impeller plate surface, also named dick friction loss of impeller, and the boiler feed water pump shaft friction when rotated in the packing, bearing, balancing parts and other mechanical parts.

ANPUMP Description

*~*~*~*~* An Pump History *~*~*~*~*