Sizing Guide

2.2
Arrester Sizing Guidelines
Large Industrial Piping Systems
Applications: Industrial equipment, food processing, commercial laundry,
up-feed pump systems, irrigation and waste treatment systems.
Sizing / Placement
Guideline: To size an
arrester for industrial
applications, use the
Industrial Equation, custom
sizing the arrester given
the system information
of a particular project. A
computer spreadsheet
version of this equation
is also available.
Arrester Group: Large
industrial size arresters,
200-400 cubic inch size.
Industrial Fluid Handling Commercial Laundries Up-Feed Pump Systems
INDUSTRIAL
Single-Family
Dwelling
LaundryMIP
Hotels Motels Multi-Family
Dwellings
Single-Fixture & Private Plumbing Groups
Applications: Not just for homes. Plumbing xtures in homes, duplexes,
apartments, condominiums, motels, hotels and military housing.
Sizing / Placement
Guideline: One size ts all.
Point-of-use AA size arrester
on both hot and cold lines.
Place on dishwashers,
washing machines and tub/
shower valves.
Arrester Group: Any ASSE
1010 Certied AA size
arrester. Various connection
size and type are for
installer’s convenience.
Tub/Shower
Tub/Shower
RESIDENTIAL
LaundryDishwasher
Three different methods of sizing are outlined below for each industry segment. Choose the sizing method
most appropriate for your project and refer to the following pages for more details on that method.
Methods of Sizing
Multi-xture Plumbing Groups
Applications: Plumbing xtures in ofce buildings, retail, schools,
hospitals, correctional facilities and public buildings.
Sizing / Placement
Guideline: The properly
sized arrester corresponds
to the total number of
xture units on each hot
and cold branch line. Place
each arrester at end of the
branch line.
Arrester Group: Any ASSE
1010 Certied A, B, C,
D, E, or F size arrester.
Various connection size
and type are for the
installer’s convenience.
Ofce
Buildings
Hospitals Correctional
Institutions
Retail Buildings
COMMERCIAL
A B C D E F
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