Description
Type AY
pump apply to petroleum refining, petroleum chemical industry,
chemical industry, and it is used to transfer petroleum and
petroleum gas without solid particles, especially in transferring
liquid with high temperature ,pressure, inflammable, explosive
and
Toxic.
Type AY said pumps are developed on the base of type Y pumps,
compare with the type Y,
Although the construction , installation size and the performance
range are the same , the efficiency of type AY more 5％一8％
than the type Y pump.
Performance range
Capacity Q: 2.5 ~ **0m3/h
Head H: *0~
**0m
Temperature T: —*5℃～**0℃
Construction: Type AY oil pump are divided into single stage single
suction, double stage single suction overhanging centrifugal oil
pumps; single stage double suction, double stage single suction
,double stage double suction two supported oil pumps.
The casing of pump cut in radial direction and the installation way
is horizontal centerline supporting, the inlet and outlet flange
are upward or are on a center line. The thrust get balanced with
the help of impeller balancing hole.
Bearings: bearings body installed a set of radial ball bearings and
a group of pulling ball bearings and get lubrication by thin oil.
The cooling for bearings exist three kinds according to the
conditions of the area.
Shaft seal : packing seal, bellows seal, balance seal and
mechanical tandem seal. There’s water cooling spacer on the surface
of shaft seal box, as the temperature of liquid exceed *6℃ or the
tem. Of hydrocarbon exceed **0℃, it should bi in used.
Driven: in order to be easy in maintenance , it adopt the
flexible lengthened plug, the pump driven by the motor though the
coupling directly. The rotation direction is counter clockwise
looking award from the motor.
Pipes system of pump:
1, the cooling water is used to get shaft seal box, bearings, or
bracket cooling according to the temperature and requirements of
usage, the flow rate of each pipe range from 0.**0.7m3/h is
well, the pressure is 0．2—0．3MPa.
Materials of tolerance parts: T≤**0℃choose the cast iron
T=**0℃***0℃choose the cast steel
T=**0℃***0℃choose the stainless steel
The description of pump type
For example **0AYSâ…¢**0x2C
**0—-dia. Of inlet(mm)
A—the first change of pump
y—centrifugal oil pump
S—the first impeller is double suction, single suction impeller no
mark of “S”
Ⅲ一code of materials
**0—head of each stage(m)
2—number of stage，total head **0x2=**0m
C—the third cut of impeller(Aã€Bã€C…
