🔨 PDI-WH 201 Water Hammer Arrestors (Sizes A through F / 1-150+ Fixture Units)

Water Hammer Arrestor (PDI-WH 201) Calculator

Size stainless steel piston-type water hammer arrestors under Plumbing and Drainage Institute Standard PDI-WH 201 & ASSE 1010: calculate hydraulic shock shockwave absorption (cushioning rapid solenoid valve closures on flushometers and washing machines from exceeding 150 PSI surge pressures), select arrestor sizes A through F, and plumbing profits.

1. Project & Operating Inputs

Water Hammer Arrestors Installed (Arrestor Count e.g. 64 Arrestors)

Average Fixture Units Protected per Branch (WSFU e.g. 24 WSFU / Size B)

Customer Bid Price for Supplied & Soldered Arrestor ($ / Unit e.g. $165)

ASSE 1010 Stainless Arrestor, Tee Fitting, Isolation Valve & Plumber ($)

2. Financial Breakdown & Yield

PDI-WH 201 ARRESTOR SIZING

Turnkey Water Hammer Package Profit

Commercial Plumbing Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost