Vacuum Chamber

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

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 (in) 1870

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

We are engaged in providing Small Vacuum Chamber, which finds application in physical experiments or testing of mechanical devices or for processes such as vacuum drying or coating. These chambers include three ports, two ball valves, vacuum gauge, and a hinged lid. We manufacture these chambers in compliance with industrial standards to keep up with the desired quality levels.Specifications: Vacuum Rating: 1 TorrSeal: Buna O-RingVacuum Port: 1/2″ NPTVent Port: 1/4″ NPTGauge Port: 1/4″ NPTChamber Material: Clear AcrylicLid Material: Clear AcrylicLid Configuration: No Hinge/ClampSize: 8″W x 12″H (outer dimensions)Approximate Volume (in³): 603

• 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

We are well known for offering Vacuum Chamber Cube with vacuum rating of .5 torr and guna L gasket seal. These chambers are well appreciated for their optimum performance, long operational life and supreme efficiency. Pure quality stainless steel is used to manufacture the chamber and helium leak tests are conducted on these chambers for quality assurance. Our customers can avail these chambers at budget friendly rates.Specifications Vacuum Rating 0.05 TorrSeal Buna L GasketVacuum Port 3/4 NPTVent Port 1/2 NPTGauge Port 1/4 NPTChamber Material 304 Stainless SteelLid Material AcrylicLid Configuration No Hinge/ClampSize 24W x 16HApproximate Volume (in) 6936

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

We are engaged in providing Vacuum Chamber Hinged Lid with vacuum performance of 1 torr. Presented vacuum chambers have vertical cylindrical design constructed with glass bead blast finish, stainless steel body, and hinged lid with an L gasket seal. We manufacture these chambers in compliance with industry standards and norms in order to fulfill the diverse requirements of the clients.

Specifications:

• 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 stock
• 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 TorrSeal Buna L GasketVacuum Port 3/4 NPTVent Port 1/2 NPTGauge Port 1/4 NPTChamber Material Stainless Steel 304Lid Material Acrylic or SS304 as required by customerLid Configuration No Hinge/ClampSize 12.75W x 18HApproximate Volume (in) 1870

• Item Code: VI-12x18
• 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 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: 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

Product Features of the ChamberAcrylic Vacuum chamber for long-term air-tightness performance.Burhani Vacuum chamber has a rounded edge at the top,for the protection of silicone gasket.Vacuum gauge is assembled on a separate port, so that the reading remains accurate even while pumping/venting the chamber.Gauge reading in both in Hg and Mpa.All kits are vacuum tested for 24 hours before packaging. (leakage less than 2.0 inHg at 24 hours)Two-sided flippable vacuum gasket for better durability and reliability.The gasket is chemically resistant to butane and other solvents.25 mm thickness Acrylic lid for long life and clear visibility.Strong elastic food grade silicone vacuum hose can connect/disconnect easily with the pump/chamber.50um air filter on the vent valve to reduce air flow and prevent any dust/powder flowing into the chamber.Easy to install and low-cost to maintain: the chamber can be assembled in 5 minutes.45 day complimentary warranty and life-long parts support.Product Specs & Part List of the ChamberVacuum Chamber: Plexi Glass Acrylic with 30 years warrantyLid: AcrylicVacuum Gasket: silicone, resistant to Butane and other solvents.Vacuum Gauge Assembly: 0.5 inHg accuracy.Valve Assembly: very high quality air-tight brass valves, with 50um filter on vent portVacuum Hose: 3.3' / 1 meter food grade collapse-proof silicone hose, 3mm wall thickness (8mm I.D, 14mm O.D)Vacuum Pump Adapter: 3/8“ hose barb to 1/4 SAE flare port. . .

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

Acrylic Vacuum Chamber is manufactured in Chennai by Burhani Hardware and FittingsProduct Features of the Chamber1. Acrylic Plexi-Glass chamber for long-term air-tightness performance.2. Burhani Acrylic Vacuum chamber has a rounded edge at the top, forthe protection of silicone gasket.3. Vacuum gauge is assembled on a separate port, so that the reading remainsaccurate even while pumping/venting the chamber.4.Gauge reading in both in Hg and Mpa.5. All kits are vacuum tested for 24 hours before packaging (leakage less than 2.0 inHg at 24 hours)6. Two-sided flippable vacuum gasket for better durability and reliability.7. The gasket is chemically resistant to butane and other solvents.8. 25 mm thickness Acrylic lid for long life and clear visibility.9. Strong elastic food grade silicone vacuum hose can connect/disconnect easily with the pump/chamber.10. 50um air filter on the vent valve to reduce air flow and prevent any dust/powder flowing into the chamber.11. Easy to install and low-cost to maintain: the chamber can be assembled in 5 minutes.12. 45 day complimentary warranty and life-long parts support.13. Product Specs & Part List of the Chamber14. Vacuum Chamber: Plexi Glass Acrylic with 30 years warranty15. Lid: Acrylic or Glass16. Vacuum Gasket: silicone, resistant to Butane and other solvents.17. Vacuum Gauge Assembly: 0.5 inHg accuracy.18. Valve Assembly: very high quality air-tight brass valves, with 50um filter on vent port19. Vacuum Hose: 3.3' / 1 meter food grade collapse-proof silicone hose, 3mm wall thickness (8mm I.D, 14mm O.D)20. Vacuum Pump Adapter: 3/8“ hose barb to 1/4 SAE flare port. . .

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

—SS vacuum Chamber is manufactured by Burhani Hardware And Fittings in Chennai. With a cost about 50% less than a cubic chamber of the same size, our Vertical Cylindrical Top-Loading Vacuum Chambers are the best solution when you need a high volume at a lower cost. Choose from industrial vacuum (VI), high vacuum (VH), or our large chamber series (VL). — —KEY FEATURES —Helium leak testing of every chamber with leak rates guaranteed to less than 10-8 atm-cc/sec. —Designs that include ports that will not crack or leak over time —FEA analysis on every chamber to guarantee chamber is structurally sound for full vacuum KEY FEATURESHelium leak testing of every chamber with leak rates guaranteed to less than 10-8 atm-cc/sec.Designs that include ports that will not crack or leak over timeFEA analysis on every chamber to guarantee chamber is structurally sound for full vacuum

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

VACUUM DEGASSING CHAMBER
Vacuum degassing 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.
-Product Features of the Chamber
-Stainless steel chamber for long-term air-tightness performance.
-Burhani Vacuum chamber has a rounded edge at the top, for the protection of silicone gasket.
-Vacuum gauge is assembled on a separate port, so that the reading remains accurate even while pumping/venting the chamber. --Gauge reading in both in Hg and Mpa.
-All kits are vacuum tested for 24 hours before packaging. (leakage less than 2.0 inHg at 24 hours)
-Two-sided flippable vacuum gasket for better durability and reliability.
-The gasket is chemically resistant to butane and other solvents.
- 25 mm thickness Acrylic lid for long life and clear visibility.
-Strong elastic food grade silicone vacuum hose can connect/disconnect easily with the pump/chamber.
-50um air filter on the vent valve to reduce air flow and prevent any dust/powder flowing into the chamber.
-Easy to install and low-cost to maintain the chamber can be assembled in 5 minutes.
-45 day complimentary warranty and life-long parts support.
*Product Specs & Part List of the Chamber
*Vacuum Chamber stainless steel
*Lid Acrylic Vacuum Gasket silicone, resistant to Butane and other solvents.
*Vacuum Gauge Assembly 0.5 inHg accuracy.
*Valve Assembly very high quality air-tight brass valves, with 50um filter on vent port
*Vacuum Hose 3.3'' / 1 meter food grade collapse-proof silicone hose, 3mm wall thickness (8mm I.D, 14mm O.D).
*Vacuum Pump Adapter 3/8" hose barb to 1/4 SAE flare port.

• Item Code: BHF2515
• Port of Dispatch: JNPT Mumbai
• Production Capacity: 100 Piece/month
• Delivery Time: Ready Stock
• 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