1. Healthy consideration:
Lead (Pb) is a kind of chemical that can dissolve and contaminate water, and make affect the health of people, such as mental health of children. Materials that have high lead rate are not suitable and avoided for drinking water system.
4. Product Costs:
HPb57-3, also called China Normal brass, a variant of CW614N brass, is a local industry standard, with little Fe contents in composition, and lower costs than CW614N. It’s widely used as a standardized material in China and accepted by most global markets and customers.
HPb58-3, is a variant of CW617N brass and commonly used for brass valves in China local market.
HPb59-1, has less Fe, Pb and higher price costs, it’s more used for high-quality products or market, such as brass fittings for USA market.
Here are some our brass valves made of China materials:
2. European Market: CW614N and CW617N brass materials are widely used for European brass valves.
CW617N brass has better physical property to stand higher working pressure and temperature, more importantly the Pb percentage share is less than 2.5% and applicable for drinking water systems, good for environment and people’s health.
CW614N Brass is also popularly used because of similar compositions and lower costs, suitable for those applications without much environmental requirements.
Here are some our brass valves made of China materials:
3. USA Market: C46500 and C3700 are most widely used materials for USA brass valves.
As a requirement of AB1953 regulations, all the brass valve parts which contact the water shall have Pb content less than 0.25%, also called lead-free brass or no-lead brass, all the brass water valves for USA market, such as ball valves, brass gate valves, brass check valves, brass angle valves, have been compulsory to use lead free brass.
