Water hammer arrestors zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax.
Water hammer arrestor sizing guide.
Water hammer arrestor installation guide watts lf150a lf150 ha pdf retrieved 2017 04 02 original source.
There have been various methods devised for the sizing of water hammer arresters.
Installing a water arrester on each line supplying the offending fixture or fixtures usually solves the problem.
4 standard pdi wh 201 water hammer arresters water hammer the term water hammer is well known to engineers contractors maintenance personnel and other persons engaged in the plumbing and piping industry.
Water hammer arrestors shall be installed in accordance with the manufacturer s specifications.
We also review the history of water hammer in plumbing systems previous attempts to control water hammer and why these methods failed.
The science explaining the physics of water hammer.
To help clear up the confusion the following article was excerpted from the pertinent sections of the plumbing drainage.
Water hammer arrestors zurn plumbing products groupspecification drainage operation 1801 pittsburgh avenue erie pa 16502 phone 814 455 0921 fax.
Figure 2 these fixture unit values are the common values that most engineers utilize to size their water distribution systems.
Hammer and its damaging effects as they pertain to any piping system.
Rule 2 covers multiple fixture branch lines which do exceed 20 ft.
Arresters absorb the shock wave created by a sudden stoppage of the water flow.
Water hammer arresters are simple devices that install within the water line to a specific fixture or appliance.
This section covers the physics of uncontrolled water.
Lf lead free ed.
Water hammer arrestors shall conform to asse 1010.
This table is used in pdi wh201 when sizing water hammer arresters.
These values can be used in the sizing and placement of engineered water hammer arresters at the same time that the piping systems are sized.
These methods have created confusion regarding the proper sizing and location of water hammer arresters among engineers contractors and other persons engaged in the plumbing industry.
Sizing and placement rule 1 covers multiple fixture branch lines which do not exceed 20 ft.
