high pressure boiler feed pump | multistage pump |
GENERAL
TYPE D(D. DG. DY. DM. DF) pump belongs to single-suction,
multi-stage segmental centrifugal pump.
Parameter ranges:
Capacity Q: 6~540m2/h
Head H: 33~1056m
The axial force gets balanced with the help of balance disc,
Concerning lubrication system diluted oil is used for sliding
bearing kind of TYPE 85-67155-6745-8085-80150-100 and grease for
rolling bearing kind of all other pumps.
The pump rotates clockwisely viewed from original drive and.
Pump is supplied together with motor and base of cpmmpn or its
own.
Type D serial pump can be devided to:
D: Used to deliver clear water without solid praicles used to
miner with the temperatrue range from 0C~80CThe inlet is
horizontal direction.
DM: Used to deliver liquid with less solid particles or miner
with the temperatrue range from 0C~+80C. The inlet is horizontal
direction.
DG: Used to deliver clear water without solid particles or liquid
similar to clear water physically and chemically with the
temperatrue range form -20C~+150C. The inlet is perpendicularly
direction.
DY: Used to deliver oil products without solid or liquid similar
to water with the temperatrue range from-20C~+400C. The inlet is
horizontal direction.
DF: Used to deliver corrosive liquid without solid with the
temperatrue range from -20C~+150C. The inlet is horizontal
direction.
All kind type pump discharge is perpendicnlarly direction.
The shaft of all kind type pump can be with soft packing or
mechanical seal. The material through which liquid passes is made
from cast iron or bronze or steelness.
Material | ASTM | DIN | GB |
Pump case | A48class 35 | GG-25 | HT250 |
A536 class 60418 | GGG-40 | QT400-18 | |
Shaft | SAE 1045 | C45N | 45 |
AISI 420 | 1.4021 | 2Cr13 | |
Impeller | B584-90500 | G-CuSn10Zn | ZCuSn10Zn2 |
A743 CA6NM | 1.4313.95 | ZG06Cr13Ni4Mo | |
A743 CF8M | 1.4408 | ZG0Cr18Ni12Mo2Ti | |
Shaft sleeve | AISI 420 | 1.4021 | 2Cr13 |
Seal ring | A743 CA6NM | 1.4313.95 | ZG06Cr13Ni4Mo |
material | I | II | III | |
pump spare parts | impeller | QT500-7 | ZG230-450 | ZG1Cr13Ni |
casing of pump | QT500-7 | ZG230-450 | ZG1Cr13Ni | |
shaft | 40Cr | 35CrMo | 3Cr13 | |
seal ring | QT500-7 | Cu | 316 | |
shaft sleeve | QT500-7 | 45 | 1Cr13/3Cr13 |