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MULTI STAGE TURBINE(GMT) / MULTI STAGE VOLUTE PUMP(GMV)
Design & Structure Feature
GMT- Suction casing, middle casing, discharge casing to be pressed are made of the standard material of GC250(GC200) to increase the strength and each casing is sealed by O-ring.
- Various specifications of pump can be selected with combination of impeller.
- Since axis is protected by sleeve, impeller boss, it has less abrasion.
- The structure of back pull-out makes maintenance convenient.
- Balancing hole is formed on impeller to decrease axial thrust
GMV
- It is designed and manufactured to make possible of a wide range of operations.
- It has excellent suction performance as the fluid flow is stabilized at the entrance of impeller.
- It makes less vibration and noise thanks to the structure of bearing support at both ends.
- It adopts ball bearing type to decrease end play in the direction of axis and no needs to supply oil.
- Balancing hole is formed on impeller to decrease axial thrust.
Standard Specification
In case of treatment of liquids which are not in high temperature or fresh water, there might be those occasions of marked changes in wear resistance, corrosion resistance according to properties of liquids to be transferred (temperature, concentration, whether or not it contains solids) as well as using conditions and please be sure to inquire of it to our salespersons or the factory.
Conditions on the Suction Side?
Please comply with the below table regarding suction total head or inlet pressure.
Limits of Suction Total Head?
| Temperature of Liquid | Suction Diamter | Suction Total Head |
|---|---|---|
| 0℃ ~ 40℃ | 50 ~ 80 mm | - 6m |
| 100~150mm | - 5.5m |
Options?
- Changes in structure : Mechanical seal structure
- Changes in material : Shaft-STS304 / Impeller-CAC406, SSC13
Operation Conditions?
In case of using pump for automatic control with frequent repetition of start, it may cause damage to impeller and it is recommended to use the impeller material made of higher grade than CAC406. In case of using for automatic control, please be sure not to exceed the number of start repetition than 12 times per hour. Also piping should be constructed not to cause water hammering.Sectional Drawing / Selection Chart
Outline Drawing
Advantages
GMT- The compact & high performance design makes possible of reduction of installation cost and energy.
- For installation, it is possible to place suction & discharge port in upward, right & left direction due to the all-in-one structure of bearing housing and piping is easy to work.
- For household water supply and building water treatment.
- For the type of shaft seal, it is able to select a type between grand packing and mechanical seal according to the usage.
GMV
- It is designed and manufactured to make possible of a wide range of operations.
- It has excellent suction performance as the fluid flow is stabilized at the entrance of impeller.
- It makes less vibration and noise thanks to the structure of bearing support at both ends.
- It adopts ball bearing type to decrease end play in the direction of axis and no needs to supply oil.
- Balancing hole is formed on impeller to decrease axial thrust.
