Spirax Sarco FT 43 Series - User Manual

© SPIRAX SARCO
TIS 2.309.2 CHe
06.08
Catalogue section 1.2
Indications of pressures in bar g, dimensions in mm
Subject to modifications
Ball Float Steam Trap FT 43
Cast Iron EN-JL1040
PN 16, DN 25
Description
Cast iron ball float steam trap with integral automatic air venting
facility. It is available with horizontal flanged connections as well as
vertical flanged connections.
Available types
FT43H, for horizontal installation with automatic airvent.
FT43V, for vertical installation with automativ airvent.
Other types see overleaf and on request.
Sizes and pipe connections
DN 25, standard flange to DIN 2501, PN16, flange surface to DIN
2526 form C, distance between flanges to DIN3548 short.
DN 15, 20 and 40 - 50, see separate data sheet.
Other types on request.
Limiting conditions
Nominal pressure: PN 16
Max. operating pressure (PMO): 13 bar
Type max. differential max. operating
Pressure range pressure ΔP temperature (TMO)
FT 43 - 4.5 0 ... 4.5 bar 200 °C
FT 43 - 10 0 ... 10 bar 200 °C
FT 43 - 14 0 ... 14 bar 200 °C
Materials
No. Part Material DIN Mat.-Nr.
1 Body Cast iron EN-JL1040
2 Bolts and Nuts Steel M10 x 30 8.8 / 8
3 Cover gasket Nickel reinforced exfoliated graphite
4 Cover Cast iron EN-JL1040
5 Valve seat Stainless steel 1.4057
6 Valve seat gasket Stainless steel 1.4306
7 Screws Stainless steel M5 x 20 1.4057
8 Ball float with lever Stainless steel 1.4301
9 Airvent Stainless steel 1.4057
11 SLR Assembly (C) Stainless steel 1.4057
12 SLR Gasket Steel 1.0065
13 SLR Seal Graphite
14 Support frame Stainless steel 1.4301
15 Pivot frame Stainless steel 1.4301
16 Pivot Stainless steel 1.4057
17 Erosion deflector Stainless steel 1.4057
Dimensions
Size Dimensions Weight
DN A B C D E kg
25 160 110 80 245 160 8.3
Installation
Traps for horizontal (H) connection must be fitted in horizontal pipe
lines; traps for vertical (V) connection must be fitted in vertical pipe
lines. In any case, the trap must be fitted with the float arm in a
horizontal plane so that it rises and falls vertically; therefore the
arrow on the nameplate must point downwards. Flow of the fluid
according the arrow casted on the body.
Capacities
Condensate kg/h
Condensate kg/s
A
D
E
A
B
Withdrawal
Distance
Differential pressure bar
FT 43H-TV
with automatic airvent (TV)
How to specify
SPIRAX SARCO cast iron float trap with integral automatic air vent
type, PN 16, DN 25, specify: installation (H or V), max. operating
(steam) pressure.
C
3
17
4
8
9
5
7
1
2
6
14
15
16
100
200
400
600
800
1000
2000
0.03
0.07
0.1
0.2
0.4
0.7
0.05
1247100.70.20.1 0.4 15
3000
FT 43 - 4.5
FT 43 - 14
FT 43 - 10

Summary

Ball Float Steam Trap FT 43

Product Overview

General description of the cast iron ball float steam trap with integral automatic air venting facility.

Available Trap Configurations

Details on FT43H for horizontal and FT43V for vertical installation with automatic airvent.

Sizing and Connection Standards

Specifies DN 25 size, standard flange to DIN 2501 PN16, and connection details for the trap.

Operational Limiting Conditions

Defines maximum operating pressure (PMO) and temperature (TMO) for different pressure ranges.

Correct Installation Procedures

Guidance on fitting traps horizontally or vertically and ensuring proper float arm orientation.

Specifying the Correct Model

Instructions on how to specify the Spirax Sarco cast iron float trap by installation and pressure.

Maintenance and Technical Details

Optional Features and Other Types

Details on optional extras like a manual needle valve and other trap material types.

Assembly and Servicing Instructions

Procedures for fitting the main valve and air vent assembly, plus general servicing advice.

Spare Parts and Tightening Torques

Information on available spare parts and required tightening torques for trap components.

Pressure Equipment Directive Classification

Classification of the trap according to the Pressure Equipment Directive 97/23/EC.

Spirax Sarco FT 43 Series Specifications

General

Brand	Spirax Sarco
Model	FT 43 Series
Category	Industrial Equipment
Language	English