Once the system has been installed and allowed to cure properly the system shall be tested in accordance with applicable code requirements. When testing with water (hydrostatic testing), the system must be slowly filled with water and the air bled from the highest and furthest points in the system before test pressure is applied. Air must be removed from piping systems to prevent it from being locked in the system when pressure is applied. Failure to do so could be harmful to jobsite personnel should a failure occur. If a leak is found, the affected product must be cut out and discarded. A new section can be installed using couplings or other approved means.
WARNING! - THE USE OF COMPRESSED AIR OR GASES FOR PRESSURE TESTING CAN RESULT IN SYSTEM DAMAGE, SERIOUS BODILY INJURY, OR EVEN DEATH.
In addition to GF Harvel's rigorous in-house testing, GF Harvel® FlowGuard Gold® pipe is regularly tested by independent third parties to verify the product's quality and safety. Stringent testing is conducted by the National Sanitation Foundation (NSF) to ensure that GF Harvel pipe meets the requirements of NSF Standard 14 and NSF Standard 61 for quality and health effects. In addition to physical performance testing to ensure product quality, this testing ensures that GF Harvel® FlowGuard Gold® pipe does not contain nor contribute any harmful substances to the drinking water transported. As a result, FlowGuard Gold® pipe contains the NSF stamp of approval for potable (drinking) water applications.
Based on large scale testing, GF Harvel® FlowGuard Gold® is also listed for surface burning characteristics by ULC having a low flame spread rating (<25) and a low smoke development rating (<50) validating the excellent fire performance properties of the piping. This listing can be used to validate that GF Harvel® FlowGuard Gold® can be installed within return air plenums based on its excellent fire performance properties. GF Harvel® FlowGuard Gold® also meets CSA B137.6 Chlorinated Polyvinyl Chloride (CPVC) pipe, tubing and fittings for hot and cold water distri-bution systems – this information, along with ULC flame and smoke information is printed on the pipe for easy identification in the field.