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	Lightweight, electric vacuum box system. Different designs are available for both lap welds and shell to annular weld areas.

Silverwing UK Ltd produces a range of vacuum boxes suitable for both new build inspection and in-service inspection. Unlike some vacuum boxes that rely upon a vulnerable calibrated pressure gauge the Silverwing range have calibrated pressure relief valves fitted as standard. The use of a calibrated (recalibration required annually) pressure relief valve ensures that not only do they meet the requirements of applicable international standards but the box cannot be damaged by drawing too great a vacuum. The vacuum is generated by the use of an electric vacuum pump or by use of an Air Vacuum Generator (AVG) and external compressor. The vacuum boxes are rated to either 20 inch Hg (10psi/0,7bar) or 10 inch Hg (5psi/0.37bar) depending on usage. Inspection companies tend to use the electric pump with the vacuum boxes due to its ' greater flexibility while construction companies tend to use the AVG based systems.

Technical Description

Electric Vacuum Pump	V600E
Physical Dimensions:	L 500 x W 250 x H 310 mm
Power Supply:	110 v or 220 v (specify at time of order)
Weight:	27.70 kg

Airline
Physical Dimensions:	10 m in Length
Weight:	3.2 kg Weight

HIGH PRESSURE VACUUM BOXES RATED TO 20 inch Hg

Model Number:	V600F
Physical Dimensions:	L 780 x W 280 x H 230 mm
Weight:	10.35 kg
Vacuum Generated by:	Electric vacuum pump

Model Number:	V600FAVG
Physical Dimensions:	L 780 x W 300 x H 230 mm
Weight:	11.30 kg
Vacuum Generated by:	Compressor

Model Number:	V400C
Physical Dimensions:	L 660 x W 310 x H 380 mm
Weight:	8.95 kg
Vacuum Generated by:	Electric vacuum pump

Model Number:	V400CAVG
Physical Dimensions:	L 660 x W 310 x H 390 mm
Weight:	9.15 kg
Vacuum Generated by:	Compressor

LOW PRESSURE VACUUM BOXES RATED TO 10 inch Hg

Model Number:	V600LP
Physical Dimensions:	L 660 x W 220 x H 150 mm
Weight:	2.5 kg
Vacuum Generated by:	Electric vacuum pump

Model Number:	V600LPAVG
Physical Dimensions:	L 660 x W 220 x H 250 mm
Weight:	2.75 kg
Vacuum Generated by:	Compressor

Model Number:	V400LP
Physical Dimensions:	L 540 x W 220 x H 220 mm
Weight:	4.0 kg
Vacuum Generated by:	Electric vacuum pump

Model Number:	V400LPAVG
Physical Dimensions:	L 540 x W 230 x H 230 mm
Weight:	4.25 kg
Vacuum Generated by:	Compressor

Lightweight, electric vacuum box system. Different designs are available for both lap welds and shell to annular weld areas.

HIGH PRESSURE VACUUM BOXES RATED TO 20 inch Hg

LOW PRESSURE VACUUM BOXES RATED TO 10 inch Hg