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SZ SERIES SINGLE-STAGE WATER-RING VACUUM PUMPS
1. Working principle
The impeller is eccentricity installed on the pump body. It rotates to make eccentricity water ring with impeller. The water is fully filling into body and impeller, continually cycling and reciprocating to change water volume between impeller. With air inlet and outlet co-function, it finishes air-sucking, compressing and exhausting.
2. Feature & Application
SZ Vacuum pump for extruder
SZ Vacuum pump is used to draw air bubble and wet air in melting material and all of low molecule matter such as solvent, mixture, reactant and residue etc. The purpose is to get the best pipe quality:
Improve isolation performance.
Reduce air release in following process.
It is quite an important process to remove air efficiently in material plasticizing. It's to remove air bubble and wet air from melting plastics conveniently in extruding process. It's better remove air from the single-screw extruder. And it's necessary for double-screw extruder.
SZ Vacuum pump for profile extrusion
SZ Vacuum pump which widely used in plastic forming process, improves not only but also working environment. It keeps operator safe.
It exhausts air in extruding process. It ensures accurate alignment between profile section and mould.
SZ Vacuum pump for forming machine
SZ Vacuum pump acts an important role to ensure profile dimension precision.
Soft profile material is gradually cool down and becomes rigid. In each process, different vacuum degree can ensure profile stick closely on inner surface of mould properly. At the same time it ensures the dimension precision after forming.
SZ vacuum pump can keep a stable vacuum degree during running. It draws leaking air too. SZ-3A model can also draw the cooling water being absorbed.
With above advantages SZ vacuum pump is widely used in plastic forming. It's wisdom to choose SZ vacuum pump.
1).SZ-3A Vacuum pump is one kind super-silent pump which based on model SZ-3. It is newly developed by selecting design parameter specially and adopting advanced structure according to customer requirement in plastic industry area. It is little flow loss, low noise, weak shaking and big storage of motor power. Therefore it can run in safe for long time when there's water at inlet.
2).It's special motor for SZ series vacuum pump, not normal Y type motor in the market. Please make special order to our company if you want to change your motor.
4. Techncial Data
1 Can your pumps mount Eff.1 motors
Currently, only on request though this will shortly be a CNBM standard.
2 Are your pumps protected against dry running?
No, unprotected centrifugal pumps are not generally designed for dry running. It is important to give us or your dealer as much information as possible about the system in which the pump is used. Inlet pressure, the type of liquid to be pumped, together with relative density, viscosity and temperature, for example, are required in order to allow CNBM to recommend the right pump with the right gaskets for a long operating lifetime.
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