Operating instructions
SHERWOOD LPG PRODUCTS
Relief Valves
Full Internal Pressure Relief Valves
UVE445A Series
t Use as a pressure relief device on larger ASME engine
fuel containers and recreational vehicle containers
t Use PVE445AT on multiport 420-lb. DOT containers
t Protective cap UEP16 included
t Threaded to accept pipeaway adapter 445-21 (1" NPT,
male outlet), which provides minimum flow restriction
UVE436AR and UVE436AM
t Use as pressure relief devices on smaller ASME engine
fuel containers and recreational vehicle containers
t Enable the use of a smaller, more economical
3
⁄4" NPT
tank coupling
t Protective cap 436AR-20 included
t Threaded to accept pipeaway adapter 436-21 (
5
⁄8" SAE
flare outlet), which provides minimum flow restriction
ORDERING INFORMATION
Part Number
Tank Connection
(NPT)
Start-to-Discharge
Setting (psig)
Flow Capacity SCFM Air Tank Surface Area (Sq. Ft.)
Pipeaway
Adapter
Dimensions (Approx.) — See Fig. 1
UL
®
ASME UL ASME A B C D Hex
UVE445AM 1" 250 987 950 35 33 445-21 5
9
⁄16"1
3
⁄32"3
15
⁄32"1
3
⁄8"
PVE445AT* 1" 375 1625 — 64 — 445-21 5
9
⁄
16
"1
3
⁄
32
"3
15
⁄
32
"1
3
⁄
8
"
UVE436AR
3
⁄
4
" 312 720 679 23 22 436-21 4
11
⁄
32
"1
1
⁄
16
"3
5
⁄
16
"1
1
⁄
16
"
UVE436AM
3
⁄4" 250 603 543 — — 436-21 4
11
⁄32"1
1
⁄16"3
5
⁄16"1
1
⁄16"
PVE436AE**
3
⁄
4
" 362 783 — — — 436-21 4
11
⁄
32
"1
1
⁄
16
"3
5
⁄
16
"1
1
⁄
16
"
* PVE445AT is classified by Underwriters Laboratories Inc.
®
in accordance with CGA Pamphlet S-1.1.
** Australian setting — 362 psig.
Pipeaway
Adapter 445-21
UVE445AM
Pipeaway
Adapter 436-21
UVE436AR
Top of tank
Fig. 1
A
C
B
D
Hydrostatic Relief Valve for Engine Fuel
and Other Applications (PVE3865)
t Primarily used in manifolds and carburetion systems
t Start-to-discharge setting is 400 psig
t Small and economical
t Protective cap UAS 10 included
t UL
®
132 states that flow capacity tests are not
required for this class of valve
PVE3865
DB
C
Top of
tank
Fig. 2
A
3865
NOTE: NFPA Pamphlet #58 states,
“Hydrostatic relief valves designed to
relieve the hydrostatic pressure which
might develop in sections of liquid
piping between closed shutoff valves
shall have pressure settings not less
than 400 psig or more than 500 psig
unless installed in systems designed
to operate above 350 psig. Hydrostatic
relief valves for use in systems designed
to operate above 350 psig shall have
settings not less than 110 percent or
more than 125 percent of the system
design pressure."
ORDERING INFORMATION
Part Number NPT Connection
Start-to-Discharge
Setting (psig)
Dimensions (Approx.) — See Fig. 2
A B C D Hex
PVE3865
1
⁄4" 400 1
9
⁄16"1
5
⁄16"
1
⁄4"
5
⁄8"
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