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In the case of a gas line rupture or a disconnect from the appliance, the Eastman ARMOR BOOST™ thermal excess flow valve will
immediately shut-off the supply of gas. The flow of gas is controlled only at the appliance where the problem exists. The valve will
remain in the closed position until the gas line has been properly repaired.
• Activates Automatically • Resets Automatically • Heat activated shut-off • 100% Performance Tested
Connector Types
Connector Lengths
Stainless Steel (Uncoated)
12”, 18”, 24”, 30”, 36”, 48”, 60”, 72”
Yellow Epoxy Coated Stainless Steel
Black Epoxy Coated Stainless Steel
EFV
Model #
Nominal OD Flare
Inlet
Maximum
fl
ow capacity
Flow Capacity
@ 0.5" WC
PD
Rated Trip
Flow
Horizontal,
Ver
�c
al Up,
Ver
�c
al Down
Maximum
bypass
fl
ow
rate at 0.5 psi
1050VB
3/8" OD Flare
(5/8"-18UNF-2A)
1/2" MIP (tapped
3/8" FIP)
75,000 Btu/h
@ 0.63 PD
66,800 Btu/h
101,000 Btu/h
2.5 SCFH
1050FB
1051VB
1/2" FIP
1051FB
1053VB
3/8" FIP
1053FB
2050VB
1/2" OD Flare
(3/4"-16UNF-2A)
1/2" MIP (tapped
3/8” FIP)
123,000 Btu/h
@ 0.74 PD
111,000
Btu/h
223,000 Btu/h
2.5 SCFH
2050FB
2051VB
1/2" FIP
2051FB
2055VB
3/4" FIP
2055FB
2054VB
3/4" MIP (tapped
1/2" FIP)
2054FB
1
Pressure & Temperature
For use with natural & LP gas with pressure up to 5 psig | EFV Type:
EFVB
Rated Opera
�
ng Temperature
-40°F to 150°F (-40°C to 65°C)
Max Opera
�
ng Pressure
0.5 psi
Min. Opera
�
ng Pressure
0.14 psi
INSTALLATION INSTRUCTIONS
MAKE THE RIGHT CHOICE
Auto Shut-Off
DuraCoat
™
Thermal Ring
BOOST YOUR PEACE OF MIND.
Eastman has designed a safety valve to help protect you and
your family from catastrophic ruptures or disconnects in your
gas line. The
ArmorBoost valve immediately restricts gas flow to help
protect you from build-up of flammable gas. The valve will
remain activated until the gas line is properly repaired. For
added protection, ArmorBoost is armed with a special fire safe
thermal ring that expands to stop gas flow when extreme
temperatures of 350˚+ are reached.
High Performance
DuraCoat™
Epoxy Coating provides extra
protection from corrosion, chemical stains from common
household products, UV rays and is approved for indoor/out-
door use.
TM
THERMAL EXCESS FLOW VALVE
Patent Pending
