2 inch inline hot and cold water constant pressure booster pump

QDL type pump suction intake is located on the lower portion of the inlet section of pump, outlet is located on top of the pump discharge segment, both in horizontal direction. The outlet of the pump can keep the angle of 90 °, 180 °, 270 ° with suction intake according to the user's needs (when the regular installation as 0 °).

 

Pumps mainly composed of suction segment, middle segment, discharge segment, bearing bracket, motor bracket, impeller, guide vanes, shafts, bearings, shaft sleeve, balance drum etc other parts. Suction segment, middle segment, discharge segment, bearing bracket form of working room. Shaft, impeller, balancing drum and shaft sleeve composed of rotor components. Axial force balanced by the balance drum, remaining axial force suffered by the upper end radial-thrust ball bearing. Suction segment, middle segment, discharge segment separately installed with seal ring, to reduce high-pressure water leakage back room.

 

Shaft upper end fitted with radial-thrust ball bearings, the bottom installed with sliding bearings. Rolling bearing lubricate by grease. Hot water circulating pump using normal temperature water to cool. Shaft seal is soft packing seal, can also be interchanged with mechanical seal, lubricate and cool by pressure water of balance chamber.

Pump driven by a vertical motor, from the motor side, the pump is rotated counterclockwise.

 

 

 

QDL Vertical Multistage Centrifugal Pump application scope is widespread, such as medicine, food, chemical industry, irrigation, pressurization, distillation, brewing, fire control, water supply, sewage treatment, electrical and mechanical, printing and dyeing industry, seawater desalination, ship equipment and supporting pressure tank and all walks of life, wide range of uses.

Cooling water, hot water

Water supply/distribution

Boiler water feed

Fire protection

Metal manufacturing

Irrigation

General industrial services

Sea water

Reverse osmosis (RO) system

No.	Country	Cast iron	Ductile Iron	Stainless Steel 304	Stainless Steel 316
1	China	HT250	QT500-7	0Cr18Ni9	0Cr17Ni12Mo2
2	US	NO.35	70-50-05	SS304	SS316
3	Japan	FC250	FCD500	SUS304	SUS316
4	Germany	GG25	GGG50	X5CrNi18.9	X5CrNiMo18.10
5	Italy	G25	GS500-7
6	France	FGL250	FGS500-7	Z6CN18.09	Z6CND17.12
7	ISO	250	500-7	11	20,20a

We could also do all kinds of special materials like bronze (brass), duplex Stainless Steel Pump and parts for special application.

 

QDL Series multistage pump data
Pump Type	Flow	Head	Power
	(m3/h)	(m)	(KW)
QDL 6-25	3-7.5	73.5-306	4-11
QDL12-25	7.5-15	69-338.4	5.5-22
QDL12-50	7.5-15	139.5-648	18.5-75
QDL25-30	15-30	82.5-340	15-45
QDL25-50	15-30	15.78-618	22-110
QDL46-30	30-55	81-340	22-75
QDL46-50	30-55	138-666	37-132
QDL 85-45	55-100	78-459	37-160
QDL 85-67	55-100	183-666	90-250
QDL155-67	100-185	177-684	132-400
QDL280-43	185-335	114-423	160-450
QDL280-65	185-355	372-680	500-800
QDL450-60	335-684	171-650	360-3400

It is only partly of the pumps we could do, please contact us for more!