Zurn 1-375 Operating instructions

Zurn
Brand
Zurn
Model
1-375
Type
Operating instructions
Rev. D
Date: 12/19
Document No. BF-RV DISCHARGE
Product No. 375, 375A, 475 & 975
Relief Valve Discharge Rates
Reduced Pressure Principle &
Reduced Pressure Detector Backow Preventers
Zurn Industries, LLC | Wilkins
1747 Commerce Way, Paso Robles, CA U.S.A. 93446 Ph. 855-663-9876, Fax 805-238-5766
In Canada | Zurn Industries Limited
7900 Goreway Drive, Unit 10, Brampton, Ontario L6T 5W6, 877-892-5216
www.zurn.com
0
50
100
150
200
0 50 100 150 200 250
ZONE PRESSURE (U.S. PSIG)
FLOW RATE (U.S. GPM)
Model 975XL Series RP
Backflow Preventers
Flood Control Integrated System (FCIS)
Stop the ooding before it starts. Protect your
property from catastrophic ooding due to Relief
Valve Discharge
General Information
Reduced Pressure Principle Backflow Preventers can and will
discharge water. For indoor installations, pit or vault installa-
tions or protective enclosures, a drain needs to be provided
that can handle the amount of water discharged. This chart
shows the maximum amount of water that can be discharged
from the device based on the line pressure where it is in-
stalled. Rarely will a device discharge this amount of water,
but if it does happen, it can cause flooding, building damage
or a cross-connection that can contaminate the water supply.
Therefore a drain MUST be sized properly. ZURN WILKINS
shall not be responsible for damage caused by the lack of a
drain or an undersized drain.
To reduce the risk of water damage due to relief valve dis-
charge, specify the ZURN WILKINS Model 375MS.
For additional information, send for BF-375MS, BF-375AMS
BF-475MS&VMS, BF-475&VMS212&3 and BF-FCIS
(Worst case condition - If 1st check or relief valve is lodged wide open)
0
50
100
150
200
0 200 400 600 800
ZONE PRESSURE (U.S. PSIG)
FLOW RATE (U.S. GPM)
Model 375 & 475 RP & RPDA
Backflow Preventers
0
50
100
150
200
0 50 100 150 200 250
ZONE PRESSURE (U.S. PSIG)
FLOW RATE (U.S. GPM)
1/4-1/2"
2-1/2-6"
3/4-1"
1 1/4-2"1/2-1" 1 1/4-2"
8-10"
  • Page 1 1

Zurn 1-375 Operating instructions

Zurn
Brand
Zurn
Model
1-375
Type
Operating instructions
Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents