DG horizontal multistage boiler feed high temperature ater pump for boiler water transfer

1,high pressure boiler feed water pump 2,high temperature circulating pump 3,high temperature water pump 4,Flow:1.5--27*3m3/h

DG boiler pump feature:

350 degree boiler water

Inlet pressure can be less than zero

inlet and outlet above the axils line

Bearing temperature testing device

Outsourcing water to be the cooling system to cool down the bearing

Dilute oil lubricate, oil cup to check if the dilute oil is enough or not 

Brief :

DG boiler high temperature water pump is the single suction ,multistage ,sectional centrifugal pump.The inlet and outlet of DG pump

is upward, the rotor bearing is the rolling bearing ,grease lubricate ,the axial power is balanced by the balance disk. 

The shaft seal can adopt the packing sealing and the mechanical sealing.   

Technical date:

♦ Product name : high temperature boiler feed water pump

♦ Working Principle: Centrifugal

♦ Main applications: Water

♦ Driver: Electric Motor or Diesel Engine

♦ Max Liquid Temperature:  105°C 

♦ Type of connection: Flange

♦ Case Material: cast steel, stainless steel

♦ Impeller Material: cast steel, stainless steel

♦ Seal: mechanical seal

♦ Flow Range:  1.5~27×3m3/s 

♦ Head:  73~450m 

♦ Speed: 1450rpm/2900rpm

Construction:

The inlet and outlet of the boiler circulating pump is upward and the rotor axial power is balanced by the balance disk. The sealing 

ways can be the packing sealing and the mechanical sealing .Only the rotor bearing of type DG85-80,DG85-67,DG155-67 use 

the sliding bearing,dilute oil, other pump use the rolling bearing.

Type DY: The materials are divided into three types:

 1_cast iron(the temperature in operation is 20--150 deg C)2_cast steel (the temperature in operation is 45--350 deg C)3_stainless steel (the temperature in operation is 45--350 deg C)

Type DF: According to the liquid can be divided into cast steel and stainless steel.

 Type DM: Anti-friction cast iron

Description of pump typeD(DG\DY\DF, DM)

D-- multistage centrifugal PumpD-- multistage centrifugal Pump for boiler feedDY_multistage oil pumpDF-- multistage anti-corrosive pumpDM-- multistage anti-friction pump1\2\3_code of materials85-capacity(stere/h)67-head of each stage3-number of stage, total head is 67x3=201(m)   

Model	Flow	Head	Speed	Power	Diameter mm
	m3/h	m	r/min	KW	Inlet	Outlet
25-35*6	20	228	2980	30	65	65
	30	185	2980	30	65	65
42-45*5	25	262	2980	55	80	80
	50	200	2980	55	80	80
13-35*10	10	370	2980	37	50	50
	17	290	2980	37	50	50
8-35*10	5	364	2980	22	40	40
	10	284	2980	22	40	40

DG horizontal multistage boiler feed high temperature ater pump for boiler water transfer