PDF Archive

Easily share your PDF documents with your contacts, on the Web and Social Networks.

Send a file File manager PDF Toolbox Search Help Contact



LLK Type Close Coupled Centrifugal Pump .pdf



Original filename: LLK Type Close Coupled Centrifugal Pump.pdf
Author: bt-3

This PDF 1.7 document has been generated by WPS Office / , and has been sent on pdf-archive.com on 26/10/2017 at 12:10, from IP address 122.234.x.x. The current document download page has been viewed 128 times.
File size: 158 KB (4 pages).
Privacy: public file




Download original PDF file









Document preview


Croos Pump (Shanghai) Co., Ltd
http://www.croospump.com/

LLK Type Close Coupled Centrifugal Pump

Description of Vertical Inline Centrifugal Pump:
LLK close coupled horizontal single stage single suction centrifugal pump is a new energy saving
product which has a unique structure and advanced technology. It has advantages of wide
performance, convenient maintenance, high efficiency, low noise and long lifetime. It is used to
transport clear water and other liquid whose chemical and physical property is similar with the
clear water. By changing the material, seal, motor or adding the cooling system, it’s can also be
used to transfer hot water, oil or liquid which is corrosive, no containing solid grain, the viscosity
similar with water.
Design Feature of Single Stage Vertical Inline Centrifugal Pump:
1. Famous mechanical seal and bearing, long time running without leakage, reliable operation.
2. Perfect balance, reasonable bearing support, smooth operation, less vibration and low noise.
3. Compact structure design to save 40% occupation.
4. Simple structure to save your maintenance cost and project budget.
5. Suitable for standard motors, so it is easy to interchange the motor.
Tel: +86-21-64092786

Email: export@croospump.com

Croos Pump (Shanghai) Co., Ltd
http://www.croospump.com/
6. Large-scale production to ensure economic cost and easy spare parts supply.
7. Many choices for material, cast iron, cast steel, all stainless steel and duplex stainless steel,
bronze for your different application.
LLKV Vertical Single Stage Inline Centrifugal Pump

Vertical Close Coupled Centrifugal Pump Description:
LLKV vertical single stage single suction inline centrifugal pump is vertical type of LLKC pump.
The performance of LLKV pump and LLKC pump is same. And the impellers they used are also
same. The impeller is directly mounted on the motor shaft. Comparing with the horizontal pump,
it only requires haft the floor space. So it can meet the needs where assembling space is limited.
Design Feature of Inline Centrifugal Pump:

Tel: +86-21-64092786

Email: export@croospump.com

Croos Pump (Shanghai) Co., Ltd
http://www.croospump.com/
1.Vertically mounted design for space saving.
2.Stable running, low noise, high concentricity of components.
3.Simple structure to save your maintenance cost and project budget.
4.Suction and discharge flange designed in same diameter, and located on the same centerline,
to be mounted in pipeline in the way as a valve
5.Suitable for standard motors, so it is easy to interchange the motor.

Application of Inline Centrifugal Pump:
Water transport
Water supply and distribution
Irrigation, drainage and flood control
District cooling/heating
Fire fighting
The Method of Repairing the Packing Seal of Centrifugal Pump
1. Clean the drain pump stuffing box and check whether there are scratches, burrs, etc. And the
packing box should be cleaned, shaft surface should be smooth.
2. Check the axial pulsation, the rotors' unbalance measure should be in the allowable range, in
order to avoid the excessive vibration, against the packing.
3. Apply sealant to the packing box and shaft surface or apply lubricant to the medium.
4. For the packing of the rolls, take the stick that is the same size as the shaft. To conceal its
packing, and then cut with the knife, knife edge is about 45 ° incline.
5. Packing must be loaded by root, and do not load several at once. The method is to take a filler,
apply the lubricant, and each of the two sides of the packing interface, along the axis, to open the
spiral shape, and then from the incision coat into the journal. Do not pull in the radial direction to
avoid interface.
6. Choose a metal shaft sleeve with a size material or a lower shaft hardness than a filler box, push
the stuffing into the deep part of the box and apply pressure to the sleeve with a gland to
precompress the packing. The pre-compression is 5% ~ 10%, the maximum is 20%. Turn the shaft
around and take out the sleeve.
7. In the same way, the second and third roots are filled. We should note that when packing for 4
~ 8, when loading, we should make the interface 90 ° staggered; Two packing 180 ° staggered;
3 ~ 6 120 ° staggered, in case of leakage through interfaces.
8. After the final packing is finished, the pressure is pressed tightly, but the compression force
should not be too large. At the same time, the shaft is rotated with the hand to make the
assembly press force tending to the parabolic distribution. Then loosen the lid slightly.
Tel: +86-21-64092786

Email: export@croospump.com

Croos Pump (Shanghai) Co., Ltd
http://www.croospump.com/
9. Carry out the operation test, if it cannot be sealed, then press a few filler; If the fever is too high,
relax it. So the drip leakage and heat is transferred to the only a little so far (packing parts
temperature higher than the environment temperature only 30 ~ 40 ℃), it can be put into use.
Installation of packing seals shall comply with technical documentation requirements. If no
provision is made, the following requirements shall be met:
1. Check the radial pulsation of the shaft at the sealing part, and the allowable radial movement
of the shaft is within 0.03 ~ 0.08 mm.
2. The diameter clearance between the liquid seal ring and the shaft sleeve is about 1.00 ~ 1.5
mm. The diameter gap between liquid seal ring and stuffing box is 0.15 ~ 0.20 mm.
3. The diameter clearance between the packing gland and the shaft sleeve is generally 0.75 ~ 1.00
mm.
4. The diameter gap between packing gland and stuffing box is generally 0.10 ~ 0.30 mm.
5. The diameter clearance between the bottom ring and the axle sleeve is generally 0.70 ~ 1.00
mm when there is the packing bottom ring.
6. After the packing pressure is pressed, the liquid seal ring should be aligned with the liquid seal,
or the liquid sealing ring is slightly outside.
7. For the packing of the rolls, take the stick that is the same size as the shaft. To conceal its
packing, and then cut with the knife, knife edge is about 45 ° incline.
As a professional centrifugal pump manufacturer from Shanghai, China, your inquiries are warmly
welcome here.

Tel: +86-21-64092786

Email: export@croospump.com


LLK Type Close Coupled Centrifugal Pump.pdf - page 1/4
LLK Type Close Coupled Centrifugal Pump.pdf - page 2/4
LLK Type Close Coupled Centrifugal Pump.pdf - page 3/4
LLK Type Close Coupled Centrifugal Pump.pdf - page 4/4

Related documents


PDF Document llk type close coupled centrifugal pump
PDF Document axial split casing centrifugal pump
PDF Document nmz type horizontal split case centrifugal pump
PDF Document cot type horizontal easy
PDF Document ge type horizontal end suction centrifugal pump
PDF Document ast type horizontal double support centrifugal pum


Related keywords