SPIRAX SARCO, INC. • 1150 NORTHPOINT BLVD. • BLYTHEWOOD, SC 29016
PHONE 803-714-2000 • FAX 803-714-2222
SPIRAXSARCO.COM/GLOBAL/US
For any additional information you may require, contact: Spirax Sarco Applications Engineering Department
Toll Free 1-800-883-4411
3/4”, 1” FT-15/30/75/125
1-1/4” FT-15/30
1-1/4” FT-75/125
1-1/2” FT-15/30/75/125
2” FTB-20
1/2”,3/4”,1” FTI-15/30/75/125/200
3/4”, 1”, 1-1/4”, 1-1/2” FT-150/200
1-1/2” FTB-150
1-1/2” FTB-200
1/2” OK150/300
1/2” FTS150/300
3/4”, 1”, 1-1/2”, 2” FT450
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C
D
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N
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B
Air Vent Assembly
Valve Mechanism
Assembly
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E
F
P
B
Valve Mechanism
Assembly
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N
J
M
H
L
Air Vent Assembly
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D
E
F
G
P
B
Valve Mechanism
Assembly
Valve Mechanism
Assembly
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F
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Air Vent Assembly
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B
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Valve Mechanism
Assembly
AEF
D
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B
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T
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B
Air Vent Assembly
Main Valve
Assembly
1/2”, 3/4”, 1”
Main Valve
Assembly
1-1/2” & 2”
Bimetal Air Vent
Assembly FT450-32
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E
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P
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Valve Mechanism
Assembly
Air Vent Air Vent Seat
Model Kit No. Torque ft•lb
FT-450 4.5 to 32 71512 26-30
FT-450 with bimetal option 66642 37-40
All Others 62652 26-30
Air Vent Kits
2” FTB-30
2-1/2” FTB-125
2-1/2” FTB-175
2” FTB-175
{
1-1/2” FTI 15 to 200
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Air Vent Assembly
L
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K
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U
P - 2” Inlet
Baffle
P 1-1/2”
Inlet
Baffle
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K
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Air Vent Assembly
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N
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L
Air Vent Assembly
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Air Vent Assembly
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Valve Mechanism
Assembly
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J
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Air Vent Assembly
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B
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