Asked by: Chedey Wornle
asked in category: General Last Updated: 25th January, 2020

Does PEX need hammer arrestors?

Connection PEX Water Hammer Arrestors
Arrestors to fit PEX pipes are usually compression fittings that do not require glue or soldering to attach. Some PEX water hammer arrestors attach using a crimp ring, but these require additional tools and plumbing experience to attach.

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Likewise, are water hammer arrestors required with PEX?

If a water distribution system is designed for a maximum flow rate of 8 ft./sec., you will never need a water hammer arrestor for CPVC or PEX tubing. So, if you only install CPVC or PEX tubing, you don''t have to read any further.

Secondly, do showers need hammer arrestors? There is no need for hammer arrestors or air chambers on this slow closing valve. Any shower valve can develop a leak over time, so sometimes replacement is very far down the line, and sometimes not.

Besides, are water hammer arrestors required by code?

The general rule is that water hammer arrestors are required on all quick closing valves. So are water hammer arrestors really required on a 0.35 gpm sensor faucet with ¾” hot and cold supply pipes? In my opinion, no, but in strict accordance with the code, yes.

Do I need air chambers with PEX?

PEX pipe requires no air chambers since it's quieter and self-cushioning.

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