Vacuum Boxes for Tank Leak Testing

DEPENDABLE PERFORMANCE: These vacuum devices are pre-tested to assure maximum reliability. The designs have been thoroughly field tested for several years in a variety of applications. These vacuum boxes do not require a vacuum pump but employ the venturi effect using compressed air (plant site or compressor supplied) to evacuate air from inside the boxes. Each vacuum box is supplied with the air ejector assembly and a vacuum gauge.

SIMPLE TO OPERATE: The air ejector has no moving parts and no lubrication is necessary. After applying leak detection fluid along seam, simply place the vacuum device over the area to be tested and open the air valve.
Made in the USA
FAST, SAFE EVACUATION: Air ejection on standard models takes less than 30 seconds to reach a level of about 10 in/Hg. Our ejector is explosion proof. It uses no electricity. Your compressed air supply (60-120 psi) will insure safe, economical operation.

CONNECTIONS: The air inlet on the venturi, which connects to the air hose is a 1/4″female NPT thread. The inlet, which connects to the box is a 1/2″ female NPT thread. All connections are provided with the box including a quick disconnect. Any 3/8″ air hose will accommodate the box.


Flat Bottom Vacuum Devices

Model Number 30FB is used primarily for testing the flat bottom of storage tanks. Viewing Area: 26.88″L x 4.5″W Shipping Dimensions: 32″L x 9″W x 5″H (including ejector and gauge) Approx. Weight: 18 lbs. (8.2 kg)

Also avaiable in 10″long and 20″long models

Inside Corner Vacuum Devices

These units are specifically designed for testing the inside corner (where the bottom meets the sidewall at 90 degrees) of storage tanks.

Model Number 18CB unit is designed for use in storage tanks less than 75 feet in diameter. Viewing Area: 15″L x 2.88″W Shipping Dimensions: 22″ x 7″W x 7″H (including ejector and gauge) Approx. Weight: 11 lbs. (5.0 kg)

Model Number 30CB is designed for use in storage tanks 75 feet to 150 feet in diameter. Shipping Dimensions: Viewing Area: 27″L x 2.88″W 33″L x 7″ W x7″H (including ejector and gauge) Approx. Weight: 15 lbs. (6.8 kg)

Model Number 40CB is designed for use in storage tanks greater than 150 feet in diameter. Viewing Area: 37″L x 2.88″W Shipping Dimensions: 44″L x 7″W x 7″H (including ejector and gauge) Approx. Weight: 20 lbs. (9.1 kg)


Flexible Vacuum Device

Model Number 30FB Flex Viewing Area: 26.88″L x 4.5″W Shipping Dimensions: 32″L x 9″W x 5″H (including ejector and gauge) Approx. Weight: 13 lbs. (5.9 kg)


Small Inside Corner Box

Corner Vacuum Device Model 8CB

Outside Dimensions: 8”L x 5¼”W x 5¼””H Viewing Area: 5”L x 2 7/8”W

Shipping Dimensions: 12″L x 7″W x 7”H (including ejector & gauge) Approx. Weight: 6 lbs. (2.8 kg)


2 Sides Meet Floor

Inside Corner Vacuum Device Model 3CB

Outside Dimensions: 16” x 16“ x 16” (triangle design)

Viewing Area: 10” x 10” x 10”

Shipping Dimensions: 21”L x 18″W x 6”H

(including ejector and gauge)

Approx. Weight: 16 lbs. (7.3 kg)


30″ Long Lap Joint Style (3/8″plate)

For more information, please call us at 610-793-1700.