July 10, 2014

No Lead? Low-lead? Lead-free? What’s the Deal?

No Lead? Low-lead? Lead-free? They all mean the same thing, and they refer to the following:  the federal Reduction of Lead in Drinking Water Act that went into effect in January 2014. This new law redefines “lead-free” under the Safe Drinking Water Act (SDWA) of 1974, to further restrict permissible levels of lead in drinking water.

The new law states, “not more than a weighted average of 0.25% (lead) when used with respect to the wetted surfaces of pipes, pipe fittings, plumbing fittings and fixtures.” The old SDWA said, “…pipes and fittings were limited to not more than 8.0% lead".  Resultingly, there actually can be some lead, although minimal, in “lead-free” products.

In summary, you will see a variety of logos and wording used in lead free products, marketing and specifications. So don't worry, as long as the products you install in potable water applications meet the new requirements and have some kind of low lead indication, your job will be in compliance!

On another note, if  you're wondering about soldering nuiances of low-lead brass, we've got a nice little video clip featuring "Hot Rod" Rohr demonstrating the subtle how-tos.  Check it out!

 

 

Thanks for reading,
Kevin Freidt

 

Blog post comments
Bill Pidgeon
April 28, 2017

I have a Caleffi Z207537 zone valve that is normally closed. When soldering, should the valve be open or closed?

Cody Mack
September 12, 2017

Bill,

Thanks for the excellent question!

First, make sure that the actuator has been removed from the brass valve body to prevent damage. From there you can twist the stem on the brass valve body to open the paddle on the inside.

If you have any further questions please be sure to call.

Best Regards,
Cody Mack
Applications Engineer
Caleffi North America
414-238-2360

Bob Lerner
March 04, 2021

How do I know if your TMV is no lead?
Why are TMVs not ok to use with a condensing/combi boiler?
Thank You

dan_firkus

In reply to by Bob Lerner

March 04, 2021

Bob, Our temperature mixing valves are either rated for ASSE1017 or ASSE 1070 and NSF372 rated for use in domestic, potable water systems. They are all low lead and certified.

dan_firkus

In reply to by Bob Lerner

March 04, 2021

Bob, Our temperature mixing valves are either rated for ASSE1017 or ASSE 1070 and NSF372 rated for use in domestic, potable water systems. They are all low lead and certified.

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