Thank you guys. That answers it.
From: J H
Sent: Monday, December 12, 2022 9:02 AM
To: Discussion list on issues relating to automatic fire sprinklers
Subject: [EXTERNAL] [Sprinklerforum] Re: Hydraulic Calculations for CPVC - Tees
- Straight-through Flow
A little more clarification to
A little more clarification to Taylor's response: It's only req'd for a 13D
system IF you're using the simplified calculation method using only the
static pressure. 13D then points you to their charts for friction loss
which includes CPVC tees on the run. If you're calculating a 13D system
using
Kyle, those lengths are to be used for 13D calculations. They're allowed
omissions per NFPA 13 2016 23.4.4.8.1 (3).
Taylor Schumacher, ET
From: Kyle.Montgomery
Sent: Monday, December 12, 2022 9:29 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: [Sprinklerforum] Hydraulic Calculations
NFPA 13 clearly states that "fitting loss for straight-through flow in a tee or
cross shall not be included". But some of the manufacturer's data for CPVC
products specifically lists equivalent lengths for these fittings (tee on the
run) as well as for couplings.
So, are those equivalent
