ADCA

FLOAT AND THERMOSTATIC STEAM TRAPS

FLT35
(Carbon steel 1”; DN 25)
DESCRIPTION

The FLT35 is a series of float and thermostatic steam traps with

integral air vent designed for modulating discharge of condensate,
ensuring maximum system heat transfer.
Typical applications include unit heaters, heat exchangers, dryers,
jacketed vessels and other applications where continuous discharge
is essential.

MAIN FEATURES

Modulating discharge of condensate at steam temperature.

Unaffected by sudden or wide load and pressure variations.
No backing-up with condensate.
Excellent air discharge through its integrated air vent.
Flow direction can be easily changed by repositioning the body in
relation to the mechanism and cover.

OPTIONS: Equalizing (vent) and drain connections.

SLR – Steam lock release.
HVV – Hand vent valve.
BDV – Blowdown valve.
AFZ – Anti-freeze device.
FLL – Float lifting lever.
VB21M – Vacuum breaker.

USE: Saturated and superheated steam.

AVAILABLE
MODELS: FLT35-4,5 , 10, 14, 21 and 32 – carbon steel.

SIZES: 1”; DN 25.

CONNECTIONS: Female threaded ISO 7 Rp or NPT.

Flanged EN 1092-1 PN 40.
Flanged ASME B16.5 Class 150 or 300.
Socket weld (SW) ASME 16.11.

INSTALLATION: Inline horizontal or vertical installation.

Angled horizontal or vertical installation.
See IMI – Installation and maintenance
instructions. BODY LIMITING CONDITIONS

FLANGED PN 40 / FLANGED
MAX. ΔP: FLT35-4,5 – 4,5 bar CLASS 300 * CLASS 150 ** RELATED
FLT35-10 – 10 bar ALLOWABLE ALLOWABLE TEMP.
FLT35-14 – 14 bar PRESSURE PRESSURE
FLT35-21 – 21 bar 37,1 bar 17,7 bar 100 ºC
FLT35-32 – 32 bar 33,3 bar 14 bar 200 ºC
30,4 bar 12,1 bar 250 ºC
27,6 bar 10,2 bar 300 ºC
CE MARKING – GROUP 2 (PED – European Directive)
PMO – Maximum operating pressure: 32 bar.
CLASS 150 PN 40 Category TMO – Maximum operating temperature: 250 ºC.
* Acc. to EN 1092-1:2018; ** Acc. to EN 1759-1:2004.
1” – DN 25 – SEP Body limiting conditions PN 40 or below, depending
– 1” – DN 25 1 (CE marked) on the type of connection adopted. Rating PN 40 for
threaded and SW versions.

VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

IS FLT35.025 E 00.21
 ADCA
FLOW RATE CAPACITY (kg/h)

DIFFERENTIAL PRESSURE (bar)

MODEL SIZE
0,5 1 1,5 2 4,5 7 10 12 14 16 21 25 32
FLT35-4,5 1” – DN 25 900 1250 1490 1630 2490 – – – – – – – –
FLT35-10 1” – DN 25 445 610 705 850 1285 1670 1820 – – – – – –
FLT35-14 1” – DN 25 335 445 515 600 885 1150 1350 1500 1610 – – – –
FLT35-21 1” – DN 25 255 335 380 410 555 680 745 790 815 895 920 – –
FLT35-32 1” – DN 25 230 275 315 345 440 500 570 600 610 650 705 750 810

G
H

A
B H
F

Inline design
M B J

L
I
Angled design

DIMENSIONS (mm) – INLINE DESIGN

THREADED / SW PN 40 CLASS 150 CLASS 300

WGT. WGT. WGT. WGT.
SIZE A B C D E H* F G F G F G
(kg) (kg) (kg) (kg)
1” – DN 25 120 212 73 189 116 3/8” 8,9 160 264 12 160 264 11,9 160 264 12,6
* As standard, in versions with EN flanges or female ISO 7 Rp threads, these connections are female threaded ISO 228. In versions with ASME
flanges, female NPT threads or SW, these connections are female threaded NPT.

DIMENSIONS (mm) – ANGLED DESIGN

THREADED / SW PN 40 CLASS 150 CLASS 300

WGT. WGT. WGT. WGT.
SIZE B C D E H* I L J M J M J M
(kg) (kg) (kg) (kg)
1” – DN 25 212 73 189 116 3/8” 65 31 8,4 95 61 11 100 66 10,5 110 76 11,7
* As standard, in versions with EN flanges or female ISO 7 Rp threads, these connections are female threaded ISO 228. In versions with ASME
flanges, female NPT threads or SW, these connections are female threaded NPT.

VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

IS FLT35.025 E 00.21
 ADCA

71

72

VB21M - Vacuum breaker

41

HVV - Hand vent valve

31

33

32

FLL - Float lifting lever

21

51 61

22

SLR - Steam lock release BDV - Blowdown valve AFZ - Anti-freeze device
(Manual) (Automatic)

VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

IS FLT35.025 E 00.21
 ADCA
MATERIALS

POS. Nº DESIGNATION MATERIAL

Body (inline flanged) A216 WCB / 1.0619
1 Body (inline threaded) P250GH / 1.0460
Body (angled) P250GH / 1.0460
2 Cover A216 WCB / 1.0619
3 * Gasket Stainless steel / Graphite
4 * Seat AISI 303 / 1.4305
5 * Gasket Copper
6 * Valve ball AISI 316 / 1.4401
7 * Lever AISI 304 / 1.4301
8 * Float AISI 304 / 1.4301
9 * Automatic air vent Stainless steel; Bimetallic
10 Bolts Zinc plated steel
11 Plug AISI 316L / 1.4404
Copper;
12 ** Gasket
AISI 304 / 1.4301
AISI 420 / 1.4021
21 Steam Lock Release
AISI 316L / 1.4404
22 Packing Graphite
AISI 303 / 1.4305 ;
31 Lever mechanism AISI 304 / 1.4301;
AISI 316L / 1.4404
32 Packing Graphite
33 Lever Plastic
AISI 303 / 1.4305;
41 Hand vent valve
AISI 316L / 1.4404
AISI 303 / 1.4305;
51 Blowdown valve
AISI 316L / 1.4404
AISI 303 / 1.4305;
61 Anti-freeze device
AISI 316L / 1.4404
71 Vacuum breaker AISI 303 / 1.4305
72 Adapter fitting AISI 303 / 1.4305
* Available spare parts; ** Not applicable in NPT version.

FLOW DIRECTION

IR - Horizontal from right to left IL - Horizontal from left to right IT - Vertical from top to bottom

AR - Angled from right to front AL - Angled from left to front AT - Angled from top to front

VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

IS FLT35.025 E 00.21
 ADCA
ORDERING CODES FLT35

Model A35 2 V XX X X IR A 25
FLT35 – Carbon steel A35
Differential pressure
4,5 bar 2
10 bar 3
14 bar 4
21 bar 5
32 bar 7
Automatic air vent
Bimetallic air vent (standard) V
None X
Cover connections
None XX
3/8” threaded connections on top and bottom, closed with plugs
10
(mandatory if any options are considered)
Options
If any, these have specific separate ordering codes, please refer to the appropriate documentation.
SLR - Steam lock release
None X
With steam lock release assembled (not available for angled design versions) S
FLL - Float lifting lever
None X
Lifting lever on the right side (when facing the steam trap body) R
Lifting lever on the left side (when facing the steam trap body) L
Flow direction
Inline horizontal from right to left (standard) IR
Inline horizontal from left to right IL
Inline vertical from top to bottom IT
Angled from right to front AR
Angled from left to front AL
Angled from top to front AT
Pipe connections
Female threaded ISO 7 Rp A
Female threaded NPT C
Socket weld (SW) ASME 16.11 H
Flanged EN 1092-1 PN 40 N
Flanged ASME B16.5 Class 150 U
Flanged ASME B16.5 Class 300 V
Size
1” or DN 25 25
Special valves / Extras
Full description or additional codes have to be added in case of a non-standard combination E

VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

IS FLT35.025 E 00.21