The Hercules Airseal Vault  

Shown to the left and open, has been engineered using high-density, water-resistent polypropylene and:

 64 cross-ribb structural supports 
 12 counter cross ribbing supports
 High-density water-resistant polypropylene
 A consistent .250 wall thickness
 A 180 degree reinforced channeled edge 
 Nesting and stacking capabilities for convenient storage
 A 100-year warranty 
 Able to be used in double-depth burials 

This vault comes in Adult, Infant, and Oversize sizes.

For a PDF with engineering specifications, click here.

The Strength Test:

BACKGROUND: Customer subitted one (1) sample for testing.  The sample arrived at CRT on 02/05/2007 via customer delivery.  Visual inspection was performed on 02/05/2007 and no product defects or shipping discrepancies were noted.  Sample submitted to identify compressive strength.  Testing to be performed per customer requirements and signed CRT quotation dated 01/24/2007.  The following additional information is provided:

CRT Order Entry Log Date: 01/29/2007
Sample Description:  HERCULES Vault

SPECIFICATION:  Customer Requirements:  Minimum 5000 lbf for 5 minutes

TEST PROCEDURE:  The chamber was placed in a test frame.  A customer-supplied base was used for bottom and side support.  Eight (8) 50-lb bags of 3/8-5/8 smooth river rock were placed on top of the vault to distribute load.  A 6"x6" H-beam was placed on top of the rock bags to apply the load.  Load was applied using a 20-ton hydraulic jack and monitored using a Sensotek load cell.  The required load was held for 5 minutes and then incrementally increased until failure.

TEST RESULTS:  

Load Obtained	Time	Ultimate Load
2270kg (5000 lbf)	5 minutes	4040 kg (8900 lbf)

OBSERVATIONS:  Ribs cracked on the underside of the lid.  There was no collapse of the vault.

CONCLUSION:  The sample was able to sustain the required load of 2268 kg (5000 lbf) for 5 minutes.  The sample conforms to customer requirements.

(Click here to see the actual report)