Instructions / Assembly

CERTIFICATE OF COMPLIANCE
VALVE BOX
To Whom It May Concern:
This is to certify that all Valve Box products have been manufactured utilizing materials
formulated and tested to adhere to the properties shown below. We certify that where
physical and/or chemical test requirements are part of the specification Dura Plastics
has performed these tests to substantiate this certification.
Properties of ASTM Test HDPE
Base Material Method
Tensile Strength D-638 2,700 – 4,400 psi (Typical Range)
Flexural Modulus D-790 Min 140,000 not to exceed 240,000 psi
Notched Izod
Impact Strength D-256 0.5 – 3.0 (Typical Range)
Deflection
Temperature @ 66psi D-648 150º- 200ºF. (Typical Range)
Density D-792 Min. 0.950 not to exceed 0.965
Electric Dielectric
Strength D-149 400 – 600 V/mil (Typical Range)
Molded Product
Chemical Resistance D-543 Very Resistant
Water Absorption D-570 Less than 1% weight change
In addition, all Valve Box products carry a Static Vertical Load Rating of SCTE
(Light Duty, Pedestrian) and have been tested in accordance with the requirements
of the Fabricated Access Covers Trade Association (FACTA) Specification for fabricated
Access Covers, Version 4.0/2001, sections 7.4 and 7.5.
Our Valve Boxes are proudly made in the USA.
QUALITY BY DESIGN