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dormont.com
SuprSense
®
The Dormont SuprSense
®
Excess Flow Valve is a precision-manu-
factured device consisting of two body pieces and an internal valve
mechanism. Under normal conditions, the valve remains opened,
allowing gas to flow at normal gas line flow rates. In the event of a
complete downstream gas line rupture, which causes excess gas
flow, the SuprSense automatically activates - greatly reducing the
gas flow.
This reduced flow is maintained until the upstream manual shut-off
valve is closed and the gas line is repaired. After the gas line is re-
paired and the pressure is equalized, the SuprSense will automati-
cally reset and restore normal gas flow.
Benets
• Protection against excessive gas leaks
• Automatic reset
• Easy to install
• Compatible with residential gas appliances
• 100% assembled and tested in the USA
Features
• Corrosion-resistant steel construction
• High temperature, gas compatible flow
limiting plunger
• CSA design certified and California DSA listed
Full flow during standard operation
providing the supply needs for the
gas appliance
Gas flow is restricted by the plunger due to full
line rupture or disconnect providing protection
against excessive gas leaks
Durable, fully-flexible
and gas compatible flow
limiting plunger
Excess Flow Valve
®
EFV SIZING
TABLE
MODEL 90-1031-V1 MODEL 90-1031-V2 MODEL 90-2031-V4 MODEL 90-3041-V5 MODEL 90-303M-V6
Rated
Trip
Max
Capacity
Rated
Trip
Max
Capacity
Rated
Trip
Max
Capacity
Rated
Trip
Max
Capacity
Rated
Trip
Max
Capacity
HORIZONTAL 75 @ 1.05 48 @ 0.30 95 @ 1.55 60 @ 0.40 115 @ 0.70 93 @ 0.35 160 @ 0.80 125 @ 0.25 160 @ 0.80 125 @ 0.25
VERTICAL UP 105 @ 1.95 65 @ 0.45 115 @ 2.25 80 @ 0.60 145 @ 1.05 118 @ 0.45 185 @ 1.00 150 @ 0.35 185 @ 1.00 150 @ 0.35
VERTICAL DOWN 42 @ 0.40 30 @ 0.15 60 @ 0.70 45 @ 0.25 85 @ 0.45 60 @ 0.15 135 @ 0.60 105 @ 0.20 135 @ 0.60 105 @ 0.20
INLET
1
⁄2" MNPT x
3
⁄8" FNPT
1
⁄2" MNPT x
3
⁄8" FNPT
1
⁄2" MNPT
3
⁄4" MNPT x
1
⁄2" FNPT
1
⁄2" MNPT
OUTLET
3
⁄8" OD Flare
3
⁄8" OD Flare
1
⁄2" OD Flare
5
⁄8" OD Flare
(
15
⁄16"-16 Threads)
5
⁄8" OD Flare
(
15
⁄16"-16 Threads)
Rated Trip Flow and Max Flow Capacity values are kBTU/hr @ max. “w.c. PD (natural gas, 0.64 s.g., 1000 BTU/cu.ft.)