Vacuum Chamber

Vacuum degasser is the process of using vacuum to remove gases from compounds which become entrapped in the mixture when mixing the components. To assure a bubble-free mold when mixing resin and silicone rubbers and slower-setting harder resins, a vacuum chamber is required.  A small vacuum chamber is needed to eliminate air bubbles for materials prior to their setting. The process is fairly straightforward. The casting or moulding material is mixed according to the manufacturers directions.

• Item Code: BHFDGS
• Production Capacity: 100
• Delivery Time: Ready Stocks
• Packaging Details: Wooden packing

• Item Code: BHFTECH
• Production Capacity: 100
• Delivery Time: ready stock
• Packaging Details: wooden with fumigation

The Vertical Industrial (VI) series Vacuum Chamber Hinged feature a vertical cylindrical design with loading from the top. The stainless steel or aluminum chamber body construction is strong and can achieve vacuum performance down to 0.5 Torr. An acrylic lid allows you to view your application process.
Specifications
Vacuum Rating 0.05 Torr
Seal Buna L Gasket
Vacuum Port 3/4 NPT
Vent Port 1/2 NPT
Gauge Port 1/4 NPT
Chamber Material Stainless Steel 304
Lid Material Acrylic or SS304 as required by customer
Lid Configuration Hinged
Size 12.75W x 18H
Approximate Volume 1870 (in)

• Item Code: VI-12x12
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stocks
• Packaging Details: Wooden packing with fumigation

• Item Code: VI-8x12
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stock
• Packaging Details: Wooden packing with fumigation

• Item Code: VI-24x16
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stocks
• Packaging Details: Wooden packing with fumigation

• Vacuum Rating: 1 Torr
• Seal: Buna L Gasket
• Vacuum Port: 1/2″ NPT
• Vent Port: 1/4″ NPT
• Gauge Port: 1/4″ NPT
• Chamber Material: Clear Acrylic
• Lid Material: Clear Acrylic
• Lid Configuration: Hinged
• Size: 8″W x 12″H
• Approximate Volume (in³): 603

• Item Code: LID-VI8x12
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stocks
• Packaging Details: Wooden packing with fumigation

• Item Code: VI-12x18
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stocks
• Packaging Details: Wooden packing with fumigation

Specifications

Vacuum Rating 0.05 Torr

Seal Buna L Gasket

Vacuum Port 3/4 NPT

Vent Port 1/2 NPT

Gauge Port 1/4 NPT

Chamber Material 304 Stainless Steel

Lid Material Acrylic

Lid Configuration Hinged

Size 12.75W x 12H

Approximate Volume (in) 1443

• Item Code: VI12x12
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stock
• Packaging Details: Wooden packing with fumigation

Specifications:

Vacuum Rating: 0.05 Torr

Seal: Buna L Gasket

Vacuum Port: 3/4″ NPT

Vent Port: 1/2″ NPT

Gauge Port: 1/4″ NPT

Chamber Material: 304 Stainless Steel

Lid Material: Acrylic

Lid Configuration: Hinged

Size: 18″W x 20″H

Approximate Volume (in³): 4877

• Item Code: VI-18x20
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stocks
• Packaging Details: Wooden packing with fumigation

Specifications:
Vacuum Rating: 0.05 Torr
Seal: Buna L Gasket
Vacuum Port: 3/4″ NPT
Vent Port: 1/2″ NPT
Gauge Port: 1/4″ NPT
Chamber Material: 304 Stainless Steel
Lid Material: Acrylic
Lid Configuration: No Hinge/Clamp
Size: 18″W x 12″H
Approximate Volume (in³): 2926

• Item Code: VI-18x12
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 pieces per month
• Delivery Time: Ready stock
• Packaging Details: Wooden packing with fumigation

• Item Code: BHFGCB080606
• Production Capacity: 100 pieces per month
• Delivery Time: Ready Stocks
• Packaging Details: Wooden Packing With Fumigation

• Item Code: BHFGC1060
• Production Capacity: 100 pieces per month
• Delivery Time: Ready Stock
• Packaging Details: Wooden Packing With Fumigation

• Item Code: BHF2011
• Production Capacity: 100 pieces/month
• Delivery Time: Ready Stock
• Packaging Details: Wooden Packing With Fumigation

• Item Code: BHF2515
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 Piece/month
• Delivery Time: Ready Stocks
• Packaging Details: Wooden Packing With Fumigation

The Vertical Industrial (VI) series Glass Vacuum Chamber feature a vertical cylindrical design with loading from the top. The stainless steel or aluminium chamber body construction is strong and can achieve vacuum performance down to 0.5 Torr. An acrylic lid allows you to view your application process.
Specifications
Vacuum Rating 0.05 Torr
Seal Buna L Gasket
Vacuum Port 3/4 NPT
Vent Port 1/2 NPT
Gauge Port 1/4 NPT
Chamber Material Stainless Steel 304
Lid Material Acrylic or SS304 as required by customer
Lid Configuration No Hinge/Clamp
Size 12.75W x 18H
Approximate Volume (in) 1870

• Item Code: MTFFF
• Production Capacity: 100 Metric Tons
• Delivery Time: Ready Stock
• Packaging Details: wooden packing with fumigation

Vacuum Pressure Impregnation (VPI) is the process of treating the finished coils with varnish by placing it a vacuum chamber.  First, the transformer is placed in an oven and heated to approximately 100 to 125 ˚C. This heat treatment drives out moisture from the insulation which could otherwise compromise the insulation.
After heating, the transformer is placed into the VPI hot. The advantage of doing it this way is that it makes it easier for the varnish to penetrate the insulation to the maximum extent possible since the viscosity of the varnish goes down as it is heated by the coil.
Next, the coil is placed in the vacuum chamber and a vacuum is pulled ‘dry’ on the transformer.   The varnish is then admitted into the chamber and the vacuum is pulled ‘wet’.  Finally, the chamber is pressurized to 100 psi completely filling the coil and insulation with varnish, and then varnish is finally pushed out of the chamber.    This results in a coil that is totally saturated with varnish (with atmosphere dip it is only partial).  The insulation will then have its maximum dielectric strength and will not absorb moisture (key to longevity).  Also, because varnish is a good adhesive, it has better mechanical strength.  In addition, because varnish is a good thermal conductor, it runs significantly cooler.
The benefit of VPI on the plate transformer is that it reduces the temperature rise by approximately 20%, making it run appreciably cooler and quieter.  And the result of that is greater reliability and extended life.  This is recognized throughout the transformer industry and is backed up by numerous studies
We hope this information is helpful to you as you consider your options for your future designs.  We believe that your transformers should all be treated with VPI, particularly given your application.

• Item Code: 10
• Production Capacity: 10
• Delivery Time: 10
• Packaging Details: wooden packing with fumigation