Watson McDaniel Series FT
Float & Thermostatic Traps

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The Watson McDaniel FT Series Float & Thermostatic Steam Traps are used for HVAC and light industrial process applications, and can be applied to unit heaters, water heaters, pressing machines, heat exchangers, and coils. These traps have excellent air removal capability making them an excellent choice for HVAC and process applications requiring quick start-up.

Applications
Watson McDaniel Series FT Steam Traps are designed to freely remove large quantities of condensate and non-condensable in steam systems.
Services
Unit & Space Heaters | Water Heaters | Converters | Pressing Machines | Draining Mains & Risers-Low-Pressure | Heat Exchangers | Steam Process Equipment | Coils
 

Pressure / Temperature Rating
Maximum Allowable Pressure - 125 PSI at 450F
 
Materials
Body & Cover - Cast Iron ASTM A-126 Class B | Nut & Bolts - High-tensile Steel
Gasket - Garlock 3400 | Float - Stainless Steel
Valve & Seat - Stainless Steel
Thermostatic Assem. - Stainless Steel Bellows & Valve


FT

Dimensions
Trap Size Watson McDaniel FT Dimensions Weight
A B C D E F
FT-3
FT-4
FT-33
FT-34
FT-73
FT-74
FT-123
FT-124
4-1/8" 5" 5-1/8" 3-1/8" 2-3/4" 2-3/8" 7.5
FT-6
FT-35
FT-36
FT-75
FT-76
FT-125
FT-126
5" 6-13/16" 6-15/32" 4-1/8" 3-7/16" 3-1/32" 13
FT-7
FT-37L
FT-77L
FT-127L
6-3/8" 7-11/16" 8-7/32" 5-1/4" 4-13/32" 3-13/16" 21
FT-8
FT-38
FT-78
FT-128
FT-S8
6-1/2" 11" 8-31/32" 7-15/32" 4-17/32" 4-7/16" 40

 
Connection Model Max Oper. Press. Weight Cross Reference List
Spirax Sarco Armstrong Hoffman
3/4" NPT
1" NPT
1-1/4" NPT
1-1/2" NPT
2" NPT
2" NPT
FT-3
FT-4
FT-6
FT-7
FT-8
FTS-8
15
15
15
!5
!5
15
8
8
13
23
40
40
3/4" FT-15
1" FT-15
1-1/4" FT-15
1-1/2" FT-15
2" FT-15
 
15B3
15B4
15B5
15B6
15B8
15B8
55, 53, 015H
55, 54, 015H
55, 56, 015H
55, 57, 015H, 015C
55, 58, 015H, 015C
 
3/4" NPT
1" NPT
1" NPT
1-1/4" NPT
1-1/2" NPT
2" NPT
FT-33
FT-34
FT-35
FT-36
FT-37L
FT-38
30
30
30
30
30
30
8
8
13
13
21
40
3/4" FT-30
1" FT-30
1" FT-30
1-1/4" FT-30
1-1/2" FT-30
2" FT-30 
30B3, 30A3
30B4, 30A4
30B4, 30A4
30B5, 30A5
30B6, 30A6
30B8, 30A8
590, 550, 540, 030H
550, 540, 030H
590, 560, 030H
550, 560, 030H
550, 030C, 030H, 580
550, 030C
3/4" NPT
1" NPT
1" NPT
1-1/4" NPT
1-1/2" NPT
2" NPT
2" NPT
FT-73
FT-74
FT-75
FT-76
FT-77L
FT-78
FTS-8
75
75
75
75
75
75
75
8
8
13
13
21
40
40
3/4" FT-75
1" FT-75
1" FT-75
1-1/4" FT-75
1-1/2" FT-75
2" FT-75
 
75A3
75A4
75A4
75A5
75A6
75A8
75A8
591, 541, 075H
591, 561, 541
591, 561, 541
551, 561
551, 075C, 591
075C
075C
3/4" NPT
1" NPT
1" NPT
1-1/4" NPT
1-1/2" NPT
2" NPT
2" NPT
FT-123
FT-124
FT-125
FT-126
FT-127L
FT-128
FTS-8
125
125
125
125
125
125
125
8
8
13
13
21
40
40
3/4" FT-125
1" FT-125
1" FT-125
1-1/4" FT-125
1-1/2" FT-125
2" FT-125
 
125A3
125A4
125A4
125A5
125A6
125A8
125A8
592, 542, 125H
552, 542, 125H
592, 562
552, 562
592, 125C, 552, 582
 
552, 125C

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