R947-3010
R947-3020
½
"
325
—
¾
"
390
—
1
"
—
1260
1¼
"
—
1550
1½
"
—
1700
2
"
—
1780
Capacity in cfh at pressure drop of 1"w.c.; natural gas, sp. gr. = 0.64
CAPACITY
Two normally closed safety shutoff valves in one housing. Valve
1 fast opening, fast closing. Valve 2 slow opening, fast closing.
Main fl ow and initial lift adjustable.
Body Part Number
Flange Size
R947-3010
½
" -
¾
" NPT
R947-3020
1" - 2" NPT
Gases
: natural gas, propane, other noncorrosive gases and air
Maximum Operating Pressure
: 7 psi
Ambient / Fluid Temperature
: –40°F to +150°F
Electrical Ratings
: 110-120 V ac / 50-60 Hz
220-240 V ac / 50-60 Hz
24 V dc
Power Consumption
: R947-3010: 45 VA
R947-3020: 90 VA
Electrical Connection
: DIN-Connector
Operating Time
: 100% duty cycle
Classifi cation Valve V1
: Safety Shutoff Valve: UL 429, FM 7400
Classifi cation Valve V2
: Safety Shutoff Valve: UL 429, FM 7400
Closing Time
: < 1 second
Opening Time
: V1 < 1 sec.; V2 about 20 sec. (70 °F)
Main Flow Setting:
adjustable on V2: 10 to 100% of total fl ow
Initial Lift Adjustment:
adjustable on V2: 0 to 70% of total fl ow
Materials in contact with Gas
housing:
Aluminium,
Steel
sealings on valve seats:
NBR-based rubber
Mounting Position
solenoid upright vertical
to solenoid horizontal
Strainer
: 23 Mesh, installed in the housing upstream V1
Test Port
: G 1/8 ISO 228 taps available on both sides upstream
V1, between V1 and V2, downstream V2, and on
both fl anges
Position Indication
: Visual Indicator standard; Closed Position
Indication Switch w/ visual indication and
electrical switch (SPDT) optional
Approvals
: UL Recognized Component: File No. MH16727 (YIOZ2)
FM Approved: Report J.I. 1Z6A0.AF
AGA/CGA: pending
V1
V2
1
2
3
1
2
3
4
5
SPECIFICATIONS
North American
Double Shut Off Valves
Sheet 1597-1
ENERG
Y | C
OMBUSITION
