DIMENSIONS and FLANGES
Flange NPT
part number
pipe size
R947-3100
½
"
R947-3102
¾
"
R947-3104
1
"
R947-3106
1¼
"
R947-3108
1½
"
R947-3110
2"
OPERATION
Main Flow Setting
The valves are supplied with the main fl ow adjustment fully open. To adjust
the gas fl ow proceed as follows:
•
CAUTION:
Make sure the fl ow of gas dœ s not create a hazard.
• Locate the fl ow adjustment cap on top of the Double Shut- off Valve.
There are two screws in the cap. The holding screw is recessed and has
a blue sealing compound on it, while the pan head screw protrudes from
the cap.
•
CAUTION
: Do not adjust or remove any screws or bolts which are sealed
with a red or blue colored compound. Doing so will void all approvals
and warranties.
• Loosen the pan head screw until you can manually rotate the fl ow ad-
justment cap for
1½
to 2 turns.
• Turn the cap clockwise for less gas or counterclockwise for more gas.
• Check the fl ow at the burner with an orifi ce or fl ow meter until you have
achieved the desired fl ow.
• Tighten the pan head screw on the adjustment cap.
Initial Lift Adjustment
The initial lift adjustment varies the initial gas fl ow through the valve as the
valve seat begins to open. This adjustment can vary the initial fl ow between
0 and 70% of the total gas fl ow. All Double Shutoff Valves are shipped from
the factory with the slowest initial lift . To adjust the lift proceed as follows:
• Unscrew the small black cap on top of the fl ow adjustment cap to expose
the initial lift adjustment knob (Drawing-- Exploded View).
• The black cap also serves as tool; turn the cap over and insert it into
the corresponding slot on the adjustment knob.
• Turn the knob clockwise for a shorter initial lift or counterclockwise for
a longer initial lift .
• Once the desired initial lift has been achieved, reinstall the black cap.
Test Port
The G 1/8 ISO 228 taps are available on both sides upstream V1, between
V1 and V2, downstream V2, and on both fl anges. The G 1/8 test nipple can
be screwed in any of these pressure tap ports.
dimensions in inches
Weight,
A
B
C
D
E
lb
R947-3010
35⁄8
55⁄8
13⁄8
53⁄8 27⁄8
4.6
R947-3020
47⁄8 67⁄8 17⁄8 57⁄8 37⁄8 10.1
2
3
1
1
5
4
5
4
V1
V2
1
2
3
1
2
3
4
5
P
max.
= 7 psi
Sheet 1597-1
Page 4
A
B
C
D
E
2
1
3
1
2
3
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install
valves
inaccor
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with
cur
rent
CSA
C22.1
cana
dian
electrica
lcod
e
canadian
electrical
code
2
1
3
1
2
3
forus
ewith
natura
land
propa
negas
forope
ration
atD
MV:-40
°Fto
150°F
insta
llvalv
esin
accor
dance
with
curre
ntCSA
C22.1
foruse
with
natur
aland
propane
gas
foroper
ation
atDMV
:-40°F
to150°F
install
valves
inaccor
dance
with
cur
rent
CSA
C22.1
cana
dian
electric
alco
de
canadian
electrical
code
Adjustment Cap
Pan Head Screw
Adjustment Cap
Black Cap
Pan Head Screw
Cop
yr
igh
t © 2020 - F
iv
es - All r
igh
ts r
eser
ved | Shee
t 1597-1 04/02
DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSTION, INC.
IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL
.
Fives North American Combustion, Inc.
4455 East 71st Street - Cleveland, OH 44105 - USA
www.fi vesgroup.com
CONTACT
fna.sales@fi vesgroup.com
T +1 800 626 3477 - F +1 216 373 4237
