Frequently Asked Questions
Q: What does “Lead Free” mean?
A: The Safe Drinking Water Act has been updated to define "Lead Free" as materials containing not more than 0.2 percent lead when used with respect to solder and flux and not more than a weighted average of 0.25 percent when used with respect to the wetted surfaces of pipes and pipe fittings, and fixtures, providing a specified definition and formula for determining "weighted average."
Q: What is NSF 61 Annex G (NSF 61-G)?
A: NSF 61 Annex G is an evaluation method for products that need to meet a 0.25% weighted average lead content standard. Certification of products to this annex shall be noted in the certification listing. Products must first comply with the full requirements of NSI/ANSI 61 in order to be deemed compliant to this section.
Q: What is a wetted surface?
A: "Wetted surface," refers to any and all parts of a valve or fitting that is directly in contact with potable water.
Q: Are Viega ProPress valves and fittings “Lead Free?”
A: Yes. Viega ProPress Copper and Zero Lead Bronze fittings and valves are lead-free and are listed to NSF 61 Annex G.
Q: What materials are used to produce Viega ProPress fittings?
A: Viega ProPress Zero Lead Bronze fittings and valves are made from UNS C87700 and UNS 87710 alloys.
Q: What is the warranty for Viega ProPress Zero Lead fittings?
A: Viega ProPress fittings carry a 50-year warranty against defects in material and workmanship from Viega.
Q. What materials are used to produce Viega PureFlow fittings?
A. Viega PureFlow Zero Lead Bronze fittings and valves are made from UNS C87700 and C87710.
Viega PureFlow Brass fittings are constructed of EcoBrass UNS C69300 and C87850.
Q. Why did Viega choose the above materials over other alternatives?
A. Bronze has always been a superior material. The new alloy used in the Zero Lead Bronze fittings still has the same dezincification resistant properties as our current bronze fittings. EcoBrass was also chosen because of its corrossion resistant qualities, allowing these fittings to be used in aggressive water conditions.
Q. What is the warranty for Viega PureFlow Zero Lead fittings?
A. The same Viega PureFlow warranty of 10 years against defects in material and workmanship applies also for the Zero Lead fittings. Please refer to the Viega PureFlow Warranty for more detail.
Q. Are Viega PureFlow fittings "Lead Free?"
A. Yes. Viega PureFlow Zero Lead Bronze and Brass fittings are certified to NSF 61 Annex G for compliance to lead-free standards.