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Vacuum Pressure Impregnation (VPI) Autoclaves

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Vacuum Pressure Impregnation (VPI) Autoclaves
Vacuum Pressure Impregnation (VPI) Autoclaves

At our 25,000 sq. ft. fabrication shop, we perform custom designing, fabricating, testing, and installation of a broad range of vacuum pressure impregnation (VPI) autoclaves. Melco Steel, Inc. impregnating systems are best suited for wood treating, resin impregnating, as well as other processing applications in industries ranging from carbon and wood product manufacturing to metallurgy. Our VPI autoclaves can be used as cost-effective alternatives for conventional dip and bake methods for processing electrical windings, armatures, castings, or powdered metal products.

Depending on your specific processing needs, VPI systems can be offered in vertical/horizontal and vacuum/non-vacuum designs. Auxiliary support systems of our VPI autoclaves include storage racks, internal support racks, cart racks, flooring, and manifolds. The hydraulic cylinders used to swing open the doors of our VPI process vessels are fitted with a counterbalance valve. This device is used to prevent the door from falling in the event of hydraulic system failure.

We specialize in building counterbalance valves customized to your VPI tank configuration and weight. A kit can be provided that consists of a factory set counterbalance valve, tube, and tube fittings for installation on a existing VPI tank fitted with non-counterbalance valve. Depending on the size and type of parts impregnated, desired sealing results, as well as other production parameters, our VPI systems can be customized in a number of ways.

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Melco VPI Autoclave #1
Melco VPI Autoclave #1
Melco VPI Autoclave #2
Melco VPI Autoclave #2
Melco VPI Autoclave #3
Melco VPI Autoclave #3
 
Melco VPI Autoclave #4
Melco VPI Autoclave #4
VPI Autoclave 16x16
VPI Autoclave 16x16
 

PDF VPI Autoclave Brochure (PDF - 457KB)

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Vacuum Pressure Impregnation (VPI) Autoclaves Specifications

Autoclave Specifications

Equipment Capabilities
Insulating Electrical Coils
Processing Electrical Components
Resin Impregnating
Sealing Porous Metal Castings
Wood Treating
Materials Carbon Steel
Stainless Steel
VPI Autoclave Designs Vacuum and Non-Vacuum Designs
Vertical and Horizontal Designs
Maximum Working Diameter 32 ft
Maximum Working Length 200 ft
Maximum Operating Pressure 3000 psi
Maximum Operating Temperature 1500 ºF
Maximum Wall Thickness 8 in
Pressurizing Medium Air
CO2
GN2
Heating Methods Electric
Heat Transfer Fluid
Steam
Autoclave Parts
Blower Motor
Circulating Fan
Cooling Coil Heat Exchanger
Quick Opening Door
Rupture Disc
Safety Relief Valve
Shielded Electrical Heating Unit
Standard Features
  • Pneumatic or Mechanical Pressurization Circuits
  • Pneumatic or Mechanical Fluid Transfer Systems
  • Quick Opening or Economical Bolted Doors
  • Jacketed or Non-Jacketed Storage Tanks
  • Hydraulically Operated VPI Process Tank Door Safety Counterbalance Valves

Instrumentation Options

Control Capabilities Multiple Equipment Computer Control Monitoring
Recording with Backup
Control Options
Honeywell Computer Controls
Manual Controls
Network Compatible Computer-Based Control Systems
Programmable Microprocessor-Based Controls Systems
Set Point Controls
Recording Options
Circular Chart
Computer
Data Logger Recorder
Strip Chart
Vacuum Control Types Automatic
Manual
Vacuum Monitoring Options Gauges
Transducers

Auxiliary Systems

Options Available
Storage Racks
Internal Support Racks
Cart Racks
Flooring
Manifolds
Control Systems
Process Controls
Piping
Pumps
Related Safety Equipment
Valves
Safety Features
'Operator-Inside' Alarms
Blower Motor Cooling Alarms
Door Safety Interlocks
Over-Pressure and Over-Temperature Protection Options
Cooling Systems
Cooling Towers
Pumps
Steam Separators
Storage Tanks

Capabilities

Services
Analysis of Equipment
Design and Engineering
Evaluation
Fabrication
Inspection
Installation
Non-Destructive Field Testing
Training for New Systems
Support Services Complete Turnkey Installation
Freight On Board (FOB) Factory Services
On Site Start-Up/Operation/Maintenance Training

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Melco Steel, Inc. | Autoclave Process System | Designers • Engineers • Fabricators