FT44-21 SPIRAX SARCO Flange Trap
delivery time:15 days
Description
The FT44 is a carbon steel bodied ball float steam trap having stainless steel working internals and automatic air venting facility. The
body and cover castings are produced by a TÜV approved foundry. The trap is supplied with integrally flanged connections and can be
maintained without disturbing the pipework. Vertical flanged connections, designated FT44V, are available for all sizes. Flow direction for
the horizontal trap is clearly illustrated above. For vertically orientated traps the flow is downwards only.
Available options:
FT44 – Horizontal flow
FT44V – Vertical flow
Capsule
The BP99/32 capsule which is used in the FT44 is suitable for use on 150°C superheat @ 0 bar g and 50°C superheat @ 32 bar g.
Optional extras
A manually adjustable needle valve (designated 'C' on the nomenclature i.e. FT44-C) can be ftted to the FT44 horizontal version only.
This option provides a steam lock release (SLR) feature in addition to the standard air vent. For further information please consult
Spirax Sarco.
The top of the cover can be drilled and tapped " BSP or NPT for the purpose of ftting a balance line if requested at the point of order.
The bottom of the cover can be drilled and tapped " BSP or NPT for the purpose of ftting a drain cock if requested at the point of order.
Standards
This product fully complies with the requirements of the European Pressure Equipment Directive 97 / 23 / EC and carries the
mark
when so required.
Certification
This product is available with certifcation to EN 10204 3.1. Note: All certifcation / inspection requirements must be stated at the time of
order placement.
Sizes and pipe connections
DN15, DN20, DN25, DN40 and DN50.
Horizontal traps: Note the flow direction when facing the body: - DN15 to DN25 is left to right. - DN40 and DN50 is right to left.
Standard flanges are EN 1092 PN40 with face-to-face dimensions in accordance with EN 26554 (Series 1), ASME B 16.5 Class 150,
ASME B 16.5 Class 300 and JIS /KS 20 flanges are also available with extended face-to-face dimensions.
Vertical traps: Note that the flow direction is vertically downwards only.
Standard flanges are EN 1092 PN40 with face-to-face dimensions in accordance with EN 26554 (Series 1). ASME B 16.5 Class 150,
ASME B 16.5 Class 300 and JIS/KS 20 are also available with face-to-face dimensions in accordance with EN 26554 (Series 1).
ASME / JIS / KS flanges are supplied with tapped holes to receive flange bolts. ASME flanges have UNC threads and JIS / KS have metric
threads.
Materials
No.
Part
Material
1
Body
Carbon steel
1.0619+N / WCB
Cover studs
Steel
BS 4882 B7M
2
Cover nuts
DN15, DN20 and DN25
Steel
EN 10269 25 Cr Mo 4
DN40 and DN50
Steel
BS 3692 Gr. 8
3
Cover gasket
Reinforced exfoliated graphite
4
Cover
Carbon steel
1.0619+N / WCB
5
Valve seat
DN15, DN20 and DN25
Stainless steel
BS 970 431 S29
Main valve assembly with erosion deflector
DN40 and DN50
Stainless steel
BS 3146 Pt2 ANC2
BS 970 416 S37
Valve seat gasket
DN15, DN20 and DN25
Stainless steel
BS 1449 304 S11
6
Main valve assembly gasket
DN40 and DN50
Reinforced exfoliated graphite
7
Pivot frame assembly screws
DN15, DN20 and DN25
Stainless steel
BS 4183 18/8
Main valve assembly
Bolts
DN40
Stainless steel
BS 970 302 S25
Studs and nuts
DN50
Stainless steel
BS 970 431 S29
8
Ball float and lever
Stainless steel
BS 1449 304 S16
9
Support frame
DN15, DN20 and DN25
Stainless steel
BS 1449 304 S16
10
Pivot frame
DN15, DN20 and DN25
Stainless steel
BS 1449 304 S16
11
Pivot pin
DN15, DN20 and DN25
Stainless steel
12
Erosion deflector
Stainless steel
BS 970 431 S29
17
Air vent assembly
Stainless steel
18
Air vent seat gasket
Stainless steel
BS 1449 409 S19
19
SLR assembly
Stainless steel
BS 970 303 S31
20
SLR gasket
Steel
BS 1449 CS4
21
SLR seal
Graphite
26
Inlet plate
DN40 and DN50 only
Stainless steel
BS 1449 304 S16
Body design conditions
PN40
PMA
Maximum allowable pressure
40 bar g @ 100°C
TMA
Maximum allowable temperature
300°C @ 27.5 bar g
Minimum allowable temperature
-10°C
PMO
Maximum operating pressure for saturated steam service
Note: The DN40 and DN50 traps are limited to a PMO equal to DPMX
32 bar g @ 239°C
TMO
Maximum operating temperature
285°C @ 28.5 bar g
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco
0°C
DPMX
Maximum differential pressure
Size
DN15, DN20, DN25
DN40, DN50
FT44-4.5
4.5 bar
4.5 bar
FT44-10
10 bar
10 bar
FT44-14
14 bar
-
FT44-21
21 bar
21 bar
FT44-32
32 bar
32 bar
Designed for a maximum cold hydraulic test pressure:
Note: With internals fitted, test pressure must not exceed DPMX
60 bar g
Caution: The trap in its complete operational form must not be subjected to a pressure greater than 48 bar otherwise damage to the
internal mechanism may result.
Dimensions/weights (approximate) in mm and kg
Notes:
1. Dimensions in brackets relate to vertical connections only.
2. PN40 face-to-face dimensions are in accordance with EN 26554 (Series 1).
Size
PN40
A (A)
ASME 300
A (A)
ASME 150
A (A)
JIS/KS 20K
A (A)
B
C
D
E
F
Weight
DN15
150 (150)
209 (150)
203 (150)
206 (150)
80
80
215
120
155
10.8
DN20
150 (150)
209 (150)
205 (150)
210 (150)
80
80
225
120
165
10.8
DN25
160 (160)
212 (160)
208 (160)
210 (160)
115
85
282
170
215
15.0
DN40
230 (230)
327 (230)
321 (230)
322 (230)
130
115
337
200
200
33.0
DN50
230 (230)
320 (230)
313 (230)
311 (230)
141
123
347
200
225
34.0