Pressure relief valves are suitable for sub-grade
concrete tanks of all kinds. Outside water pressure forces the relief valve
open and allows water to enter the tank. This tends to control buoyancy of
tank and prevents floating.
All valves furnished standard with neoprene seat
mountings unless otherwise specified.
Alternate bronze seat mounting available on special
order.
Specify:
1. Catalog number.
2. “L” dimension.
3. Standard neoprene seat mounting.
4. Bronze seat mounting at extra charge.
Dimensions in inches
Catalog No.
Type
I.D. Flange Dia.
Lid Dia.
Length
R-5000
C
4
6
6 3/4
10 to 25
R-5001
A
4
6
6 3/4
12
R-5001-1
A
6
81/4
8 1/2
12 to 26
R-5002
B
4
9
5
12 to 24
Pressure Relief Valves, Flanged Flap Valves, Cast Iron Shear Gates,
Automatic Drainage Gates, Flap and Flush Valve Frame and Lid For Cast Iron
Pipe
