Issue Date: September 11, 1998 

Revision Date: February 16, 2005

HT Technologies, Inc.

Vakumatik Models V 60, V 70 Ex


Certification Leak rate of 0.1 gph with PD =100% and PFA =0%.
Leak Threshold System alarms when liquid enters interstitial space and vacuum decreases (pressure increases) above 34 millibars.
Applicability Gasoline, diesel. 
Tank Capacity Maximum of 20,000 gallons based on interstitial volume resulting when flexible liner is properly fitted and held in position against rigid tank wall. No minimum product level during test.
Waiting Time None between delivery and testing.
Test Period Minimum of 120 hours.
Comments System tests the interstitial space between a properly fitted and installed flexible liner inside a rigid tank, or between the rigid walls of a double-walled tank. 
Flexible liner is held in position by maintaining a vacuum on interstitial space. Interstitial space is tested continuously. 
System allows for permeation of vapor from stored substance into interstitial space. 
Vapor discharged from vacuum pump must meet applicable air quality standards. 
System detects breaches in either flexible internal liner or rigid tank walls. 
Reasonable temperature variations will not cause an alarm or missed detection.
This system may not be compatible with all secondarily contained tanks and/or piping. Always consult with the tank and/or piping manufacturer and the manufacturer’s applicable recommended installation practices before installing this system, or damage may be caused to the tank or piping by its use.


HT Technologies

Evaluator:  Ken Wilcox Associates

4360 Brownsboro Rd.

Tel:  (816) 443-2494

Louisville, KY 40207

Dates of Evaluation:  08/17/97, 01/28/98

Tel:  (888) 287-9595



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