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 Typhoon vacuum runners for high security in closure

Chill vent ProVac Cv 2000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ProVac® Standard PLUS High Speed Vacuum Valve with Typhoon

  • Piloted by liquid metal
  • Four sizes : Standard 300/1000/2000/3000 for die-casting machines from 100 to 3000 tons

The ProVac® valve mechanism uses a unique technology which makes it:

  • Very reliable and extremely fast
  • Unbreakable, even under the most severe conditions
  • Very easy to maintain

Characteristics:

  • Closes very reliably in less than 3 ms
  • Optimal security with the Typhoon Vacuum runners
  • Extremely robust arrangement
  • Long lifespan: the valve mechanism is made of a small number of large and reliable components
  • Low maintenance: Easy to dismount and quick cleaning.
  • Self-cleaning during the blow-out procedure
  • Vacuum control

 

Pro Vac® vacuum valves

Standard
300

Standard
1000

Standard Plus
2000

Standard Plus
3000

Machine locking force (kN)

1000 - 4000

2000 - 8000

6000 - 20000

8000 - 30000

Trimmed part AI weight per die (kg)

0.1 - 0.8

0.5 - 4

2 - 8

3 - 15

Dimensions of valves
on fixed die (HxWxD, in mm)

100x85x70

135x130x100

160x130x100

170x140x120

Dimensions of valves
on moving die (HxWxD, in mm)

100x85x65

135x130x80

160x130x80

170x140x100


 Evacuation performance of a vacuum
 valve and a chill-vent
 

Explanations:
The mechanical vacuum shut-off valve is the most effective way of obtaining a good vacuum in the cavity.  The valve closes when the advancing liquid metal front contacts a triggering piston and is diverted.  Since the recommended speeds of the injection piston in the shot sleeve during the second phase of injection range from 2.5 to 5.5 m/s, the speed of the metal in the valve can exceed 500 m/s.  When this metal stream hits the trigger piston it is diverted, and it is the force induced on the piston by this change in momentum that causes the valve to close so rapidly during the very last milliseconds of the shot.  This maintains the vacuum until the last possible moment, which is important because air from leaks, residual water vapour and the gaseous products of the combustion of the die lubricant continue to be generated right up to the moment when the die is completely filled; if they were not removed, they would cause porosity in the parts of the component corresponding to the regions of the cavity that are filled last.  The VDS valve “Standard Plus” delivers this required performance, with high reliability in service and low maintenance costs.

 

 

Company
VDS
Representative
Products
Products Summary
Vacuum Valves:
     
Standard Plus
     Ultra Sonic
     Ultra Easy
     
Ultra
Chill Vents:
     
Chill Vents
     
Chill Vent inserts
Vacuum Units:
     PLC-700TP
     
PLC-350TP
     
LC-250LOGOTD
     
LC-100LOGOTD
Plastic
Vacuum Valves
Vacuum Units
Hydraulic Ejectors
Technique
General
Typhoon
Dual HS Pilot Valve
VAMP

Contact
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Management
Form
Montreux

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