T.R.P. Vacuum Tester
(True Reduced Pressure Vacuum Tester)
Reduced pressure testing of aluminum melts and the importance of gage selection.
- Fully Automatic Operation: Once the molten sample is placed on the pedestal and the Start button is pushed, the unit will automatically pull down to the target absolute vacuum level and maintain it for the time that has been pre-set on the timer. It will then dump the vacuum, and indicate completion of the test with signal lights
- Elimination of Frequent Calibration of the Vacuum Gage: In other critical applications the vacuum gage that is used has been found to only require an annual verification of accuracy. Differential gages used on other testers are frequently found to require testing and adjustment on a daily/weekly/monthly schedule.
- Economical Operation: During a six minute cycle, the pump will only run for about 20 seconds of the total to maintain the target vacuum level. This is equivalent to a 95% reduction in operating time, when compared to other vacuum pumps which run continually. Significant savings in electrical power and maintenance cost are the direct benefits.
- Special Signal Light: The control panel has a special signal light to show the target vacuum level is being held to a tolerance of +/-0.20″Hg.
- Special Vacuum Chamber: The chamber is a special assembly with a high temperature glass cover. This permits observation of the solidifying metal, which can provide an indicator of metal cleanliness.
- Sample Cup: A special cup design minimizes weight variation and shrinkage in the sample.
- Vibration: Vibration can influence test results. The use of special isolation mounting minimizes this error, and the use of a tight vacuum system eliminates most of the pump run time. (Pump only runs infrequently as needed to maintain vacuum level).
- Vacuum Tester
- Two Sample Cups
- Vacuum Chamber
- Insulating Pad
- Complete instructions
NOTE: The testing range selected is based upon the quality level of the parts being made. Most average castings are made to a target of 100 Torr. Testing at lower levels (90, or lower) will magnify the size of any gas pores in the TRP test sample, (lowering the sample density) and enable you to better judge the risk of providing “gassy or porous castings” to your customer.
Related Products: #200 Molten Return Dross Boss™, Automatic Dross Boss™ Buggies (60-150lb.), Barrel Units (10-60lb.), Hot Metal Return Units (30-300lb.), Portable Unit (35-60lb.), Remote Station Units 300-1000lb.), and the Skim Station Dross Boss™.
Contact us for more information.
810 Botham Ave., St. Joseph, MI 49085
Phone: (269) 983-6859
Fax: (269) 982-0823