Detailed Product Description

                       Type DG Industrial Boiler Feed Pump

Product Introduction

  Type DG pump is single-suction, multi-stage, segmental centrifugal pump. It is used for feeding water of low-middle pressure boiler as well as pumping high lift water of factory and city. It is provided for delivering clear water or other liquid which is physically and chemically similar to clear water. The temperature of the liquid for type DG85-80 and  200DG43 pump is -20^oC--150^oC, the temperature for the liquid for the others usually is  -20^oC--105^oC.The maximum inlet pressure is not allowed more than 0.59MPa(6kgf/cm²).

Performance range  
    Capacity  Q: 6~346m3/h
    Head  H: 102 ~1056m
 
Description of pump type
Example 1: DG2550×3
DGSingle-suction, multi-stage, boiler feed water pump.
25 Pump capacity (m3/h)
50Single-stage head of pump (m).
3pump stage number.
Example 2: 40DG140×3.
40inlet diameter of pump (mm).
DG Single-suction,multi-stage, boiler feed water pump.
140Single-stage head of pump ( m ).
3pump stage number.

Construction
The inlets and the outlets of all type DG pumps are vertical upward. The axial force gets balanced with thehelp of balance disk. The shaft seal usually uses packing seal or mechanical seal. Type Dg8580, Dg8567and Dg15567 pumps use sliding bearings which get lubricated with dilute-oil. The others use rolling bearings
The direction of rotation
The rotation of the pump rotor is clockwise looking from the motor to the pump.

The material of main parts of the pump
The medium-contacting parts are made of cast iron except that of type Dg8580 and type 200DG43 pumps are cast steel.

Complete provision range
pump, motor, check valve, sluice valve and common bedplate or pump bedplate.