Spirax Sarco FTS14 Manuel utilisateur

IM-P145-02 ST Issue 2 1

1. Safety information

2. General

product information

3. Installation

4. Commissioning

5. Operation

6. Maintenance

7. Spare parts

Printed in GB

FTS14 Austenitic Stainless Steel

Ball Float Steam Trap ½" (DN15) to 1" (DN25)

Installation and Maintenance Instructions

IM-P145-02

ST Issue 2

1452050/2

IM-P145-02 ST Issue 2

IM-P145-02 ST Issue 2 3

1. Safety information

Safe operation of this product can only be guaranteed if it is properly installed,

commissioned, used and maintained by qualiﬁed personnel (see Section 1.11 ) in

compliance with the operating instructions. General installation and safety

instructions for pipeline and plant construction, as well as the proper use of tools

and safety equipment must also be complied with.

1.1 Intended use

Referring to the Installation and Maintenance Instructions, name-plate and Technical

Information Sheet, check that the product is suitable for the intended use / application.

This product complies with the requirements of the European Pressure Equipment

Directive 97 / 23 / EC and falls within category SEP and therefore does not carry the

mark.

Product Group 1

Gases

Group 2

Gases

Group 1

Liquids

Group 2

Liquids

FTS14

½" DN15 SEP SEP SEP SEP

¾" DN20 SEP SEP SEP SEP

1" DN25 SEP SEP SEP SEP

i) Theproducthasbeenspecicallydesignedforuseonsteam,airorcondensate

which is in Group 2 of the above mentioned Pressure Equipment Directive.

 The products’useonotheruidsmaybepossiblebut,ifthis iscontemplated,

SpiraxSarcoshouldbecontactedtoconrmthesuitabilityoftheproductfor

 theapplicationbeingconsidered.

ii) Check material suitability, pressure and temperature and their maximum and

minimumvalues.Ifthemaximumoperatinglimitsoftheproductarelowerthan

thoseofthesysteminwhichitisbeingtted,orifmalfunctionoftheproductcould

result in a dangerous overpressure or overtemperature occurrence, ensure a

safety device is included in the system to prevent such over-limit situations.

iii) Determinethecorrectinstallationsituationanddirectionofuidow.

iv) Spirax Sarco products are not intended to withstand external stresses that may

beinducedbyanysystemtowhichtheyaretted.Itistheresponsibilityofthe

installer to consider these stresses and take adequate precautions to minimise

them.

v) Remove protection covers from all connections and protective lm from all

 name-plates, where appropriate, before installation on steam or other high

temperature applications.

IM-P145-02 ST Issue 2

1.2 Access

Ensure safe access and if necessary a safe working platform (suitably guarded)

before attempting to work on the product. Arrange suitable lifting gear if required.

1.3 Lighting

Ensure adequate lighting, particularly where detailed or intricate work is required.

1.4 Hazardous liquids or gases in the pipeline

Consider what is in the pipeline or what may have been in the pipeline at some

previous time. Consider: flammable materials, substances hazardous to health,

extremes of temperature.

1.5 Hazardous environment around the product

Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases,

extremes of temperature, hot surfaces, ﬁre hazard (e.g. during welding), excessive

noise, moving machinery.

1.6 The system

Consider the effect on the complete system of the work proposed. Will any proposed

action (e.g. closing isolation valves, electrical isolation) put any other part of the

system or any personnel at risk?

Dangers might include isolation of vents or protective devices or the rendering

ineffective of controls or alarms. Ensure isolation valves are turned on and off in a

gradual way to avoid system shocks.

1.7 Pressure systems

Ensure that any pressure is isolated and safely vented to atmospheric pressure.

Consider double isolation (double block and bleed) and the locking or labelling of

closed valves. Do not assume that the system has depressurised even when the

pressure gauge indicates zero.

1.8 Temperature

Allowtimefortemperaturetonormaliseafterisolationtoavoidthedangerofburnsand

considerwhetherprotectiveclothing(includingsafetyglasses)isrequired.

Viton'O'ring:

If the Viton 'O' ring has been subjected to a temperature approaching 315°C (599°F)

or higher, it may have decomposed and formed hydrofluoric acid.Avoid skin contact

and inhalation of any fumes as the acid will cause deep skin burns and damage the

respiratory system.

1.9 Tools and consumables

Before starting work ensure that you have suitable tools and /or consumables

available. Use only genuine Spirax Sarco replacement parts.

1.10 Protective clothing

Consider whether you and /or others in the vicinity require any protective clothing

to protect against the hazards of, for example, chemicals, high / low temperature,

radiation, noise, falling objects, and dangers to eyes and face.

IM-P145-02 ST Issue 2 5

1.11 Permits to work

All work must be carried out or be supervised by a suitably competent person.

Installation and operating personnel should be trained in the correct use of the

product according to the Installation and Maintenance Instructions.

Where a formal 'permit to work' system is in force it must be complied with. Where

there is no such system, it is recommended that a responsible person should know

what work is going on and, where necessary, arrange to have an assistant whose

primary responsibility is safety.

Post 'warning notices' if necessary.

1.12 Handling

Manual handling of large and /or heavy products may present a risk of injury. Lifting,

pushing, pulling, carrying or supporting a load by bodily force can cause injury

particularly to the back. You are advised to assess the risks taking into account the

task, the individual, the load and the working environment and use the appropriate

handling method depending on the circumstances of the work being done.

1.13 Residual hazards

In normal use the external surface of the product may be very hot. If used at the

maximum permitted operating conditions the surface temperature of the product

may reach temperatures in excess of 400°C (752°F).

Many products are not self-draining. Take due care when dismantling or removing

the product from an installation (refer to 'Maintenance instructions').

1.14 Freezing

Provision must be made to protect products which are not self-draining against

frost damage in environments where they may be exposed to temperatures below

freezing point.

1.15 Disposal

The product is recyclable. No ecological hazard is anticipated with the disposal of

thisproductprovidingduecareistaken,EXCEPT:

Viton'O'ring:

- Wastepartscanbelandfilled,whenincompliancewithNationalandLocalregulations.

- Waste parts can be incinerated, but a scrubber must be used to remove Hydrogen

 Fluoride, which is evolved from the product and with compliance to National and

 Localregulations.

-Parts are insoluable in aquatic media.

1.16 Returning products

Customers and stockists are reminded that under EC Health, Safety and

Environment Law, when returning products to Spirax Sarco they must provide

information on any hazards and the precautions to be taken due to contamination

residues or mechanical damage which may present a health, safety or

environmental risk. This information must be provided in writing including

Health and Safety data sheets relating to any substances identiﬁed as hazardous

or potentially hazardous.

IM-P145-02 ST Issue 2

2. General product information

Fig.2FTS14-C(R-L)-Flanged

Fig.3Sectionofthemainvalve

assembly - DN25 (1") only

Fig.1FTS14X-

Screwed (vertical down)

2.1 General description

The FTS14 is an austenitic stainless steel ball float steam trap with an integral automatic air vent.

It provides efficient condensate drainage and prompt air removal to ensure process equipment

operates to its maximum potential.

As standard the FTS14 has horizontal connections with flow from right to left (R-L). However

its unique design allows the cover to be simply rotated to provide horizontal left to right (L-R)

and vertical up or vertical down configurations.

Standards

This product fully complies with the requirements of the European Pressure Equipment

Directive 97 / 23 / EC.

Certification

This product is available with certification to EN 10204 3.1. Note: All certification/inspection

requirements must be stated at the time of order placement.

Optional extras

FTS14X is available with an integral strainer screen to protect the internals from dirt.

FTS14-C is a combined steam lock release (SLR) valve and thermostatic air vent. This is used

on applicatons where steam locking can occur. See Section 3.11.

The trap can also be supplied with optional tapping in the cover to take a suitable temperature

sensor such as a PT100. Thread size is " BSP and is supplied with a stainless steel plug fitted.

Note: For additional product information see the Technical Information Sheet TI-P145-01.

IM-P145-02 ST Issue 2 7



   

















Temperature °C

Pressure bar g

Steam

saturation

curve

C B

The product must not be used in this region.

The product should not be used in this region as damage to the internals may occur.

A - BFlanged PN16, PN25, ASME 300, screwed and socket weld.

A - CFlanged ASME 150.

Note: Tri-clamp compatible end connections, used for hygienic / sanitary applications, are

only available on the FTS14-4.5.

Body design conditions PN25

PMA Maximum allowable pressure 25 bar g @ 50°C (25 psi g @ 122°F)

TMA Maximum allowable temperature 300°C (572°F)

Minimum allowable temperature -20°C (-4°F)

Maximum operating pressure A- B19 bar g (275.5 psi g)

PMO for saturated steam service A- C13.5 bar g (195.5 psi g)

TMO Maximum operating temperature 225°C @ 19 bar g (437°F @ 275.5 psi g)

Minimum operating temperature 0°C (32°F)

Note: For lower operating temperatures consult Spirax Sarco

Maximum FTS14-4.5 4.5 bar (65 psi)

PMX differential FTS14-10 10 bar (145 psi)

pressure FTS14-14 14 bar (203 psi)

Designed for a maximum cold hydraulic test pressure of: 37.5 bar g (544 psi g)

2.4 Materials

Part Material

Body and cover Austenitic stainless steel (316) EN 10213-4 (1.4408)

ASTM A351 CF8M

Cover bolts Stainless steel BS EN 3506 A2-70

Cover gasket Reinforced exfoliated graphite

'O' ring Viton (FDA approved)

Internals Stainless steel

2.2 Sizesandpipeconnections

½",¾"and1" Screwed BSP (BS 21 and DIN 2999) or NPT (ASME B 1.20.1)

½",¾"and1" Socket weld ends to ASME B 16.11, BS 3799 Class 3000 or DIN 3239

DN15,20and25 Flanged ends to ASME B 16.5 Class 150 and 300 or EN 1092-1 /PN16/25

½",¾"and1" Tri-clamp ends (FTS14-4.5 only).

Note: For alternative connections please consult Spirax Sarco.

2.3 Pressure/temperaturelimits(ISO 6552)

IM-P145-02 ST Issue 2

3.Installation

Note: Before actioning any installation observe the 'Safety information' in Section 1.

Refering to the Installation and Maintenance Instructions, name-plate and Technical

Information Sheet, check that the product is suitable for the intended installation.

3.1 Check materials, pressure and temperature and their maximum values. If the maximum

operating limit of the product is lower than that of the system in which it is being fitted,

ensure that a safety device is included in the system to prevent overpressurisation.

3.2 Determine the correct installation situation and the direction of fluid flow.

3.3 Remove plastic protective covers from connections.

3.4 If the trap is to discharge to atmosphere ensure that it's to a safe place, the discharging

fluid may be at a temperature of 100°C (212°F).

3.5 The trap must be fitted with the float arm in a horizontal plane so that it rises and falls

vertically. This applies to all installation flow directions.

3.6 Although the standard flow configuration is right to left (R-L) the connection orientation

can be changed on site by undoing the four cover bolts and moving the cover to the

preferred flow orientation. Note: A new gasket must always be fitted.

 Warning:Thecovergasketcontainsathinstainlesssteelsupportringwhichmay

 causephysicalinjuryifnothandledanddisposedofcarefully.

3.7 Traps should be fitted below the outlet of the steam system with a small drop leg

immediately preceding the trap - Typically 150 mm (6") see Figure 4. If no drop leg is

allowed then it may be possible (under low load conditions) for steam to flow over the

condensate in the bottom of the pipe and reach the trap.

3.8 Always fit a non-return (check) valve downstream of any steam traps which discharge

into condensate return lines where back pressure is experienced. This is most

commonly caused by a rising condensate line. The check valve will prevent the steam

space flooding when the inlet pressure is reduced or the steam is shut off. Use a suitable

valve such as the Spirax Sarco DCV41, see Figure 4.

Fig.4Evaporator

Heater

Steam in

Product

Air vent

Product out

FTS14 150 mm (6")

mimimum

DCV41

Condensate

out

IM-P145-02 ST Issue 2 9

4.Commissioning

After installation or maintenance ensure that the system is fully functioning. Carry out tests on

any alarms or protective devices.

5. Operation

The float trap is a continuous discharge trap, removing condensate the instant it forms. On

start-up, the thermostatic air vent allows air to bypass the main valve preventing the system air

binding. Hot condensate will close the air vent tightly, but as soon as it enters the main chamber

of the trap, the float rises and the lever mechanism attached to it opens the main valve - keeping

the system drained of condensate at all times. When all condensate has been removed, the float

drops and closes the main valve. Float traps are renowned for their high start-up load handling

capability, clean tight shut-off and resistance to waterhammer and vibration.

On applications that suffer from steam locking an SLR unit should be fitted see Section 3.11.

3.9 Bypasses are not recommended because they can be left open and can cause the trap

to malfunction or allow steam wastage (and possible pressurisation of the condensate

return system).

3.10If the trap is to be welded into the line this should be done using the electric arc method.

If this method is used the internals need not be removed. If any other welding method

is employed it may cause distortion of the trap body or damage to the internals

3.11 Float traps should be fitted as close as possible to the outlet of the plant to be drained,

otherwise the trap can steam lock. Steam locking occurs when the pipe between the

condensate outlet and the steam trap fills with steam preventing the condensate from

reaching the trap. This can lead to system waterlogging which will affect plant efficiency.

It is very similar to the air locking experienced in water systems.

The most common application where steam locking is a risk, is on rotating cylinders and

other applications where condensate is removed via a dip tube or syphon pipe. Steam

locking can easily be prevented by fitting the trap with a combined thermostatic air vent

and steam lock release valve (SLR).

The SLR valve is opened by turning the spindle anticlockwise. The standard factory setting

is a ½ turn open which equates to an approximate steam 'bypass' of 22 kg /h @ 10 bar.

Site adjustment of the SLR can be achieved by turning anticlockwise to increase the

bypass flow and clockwise to reduce the flow.

 Note: The SLR should not be used to provide 'blowthrough' steam loads which are

usually high and may reduce the working life of the trap. If blowthrough steam is required

consult Spirax Sarco for further details.

3.12If a float trap is to be situated in an exposed position, it should be either lagged or drained

by a separate, small thermostatic trap.

3.13Ensure adequate space is left to remove the body from the cover for maintenance.

Minimum withdrawal distance distance for the FTS14 is 135 mm (5.6") for DN15 (½") and

DN20 (¾") and 145 mm for the DN25 (1").

IM-P145-02 ST Issue 2

6. Maintenance

Note:Beforeactioninganymaintenanceprogrammeobserve

the 'Safety information' in Section 1.

Warning

Thecovergasketcontainsathinstainlesssteelsupportringwhichmay

causephysicalinjuryifnothandledanddisposedofcarefully.

6.1 General information

Before undertaking any maintenance on the trap it must be isolated from both the supply line

and return line and any pressure allowed to safely normalise to atmosphere. The trap

should then be allowed to cool. When reassembling, ensure that all joint faces are clean.

Note:ThefollowingSectionsneedtobereadinconjunctionwithFigure5.

6.2 Howtofitthemainvalveassembly

-Undo the cover bolts (2). Place two screwdrivers between the body and cover on either side

and lever off the body, keeping bolt holes aligned.

-Remove the pivot pin (14) and float assembly (8).

-Remove the two main valve assembly screws (7) and pivot frame (12).

-Remove the main valve seat (5) and replace with a new seat supplied with new gasket and

tighten to the recommended torque (see Table 1, page 8).

Note: A valve spring (16) is fitted to the DN25 (1") traps only.

-Refit the pivot frame (12) by tightening the assembly set screws (7) to the recommended

torque (see Table 1). Replace float assembly (8) and pivot pin (14) .

-Fit a new 'O' ring (15) onto the body ensuring that the 'O' ring contact surfaces are all clean

and in good condition. Care must be taken to ensure that the 'O' ring is not damaged during

assembly. A suitable lubricant may be used to ease assembly.

-Refit the cover using a new gasket (3) and tighten the cover bolts (2). This is relevant to all

configurations.

6.3 Howtofittheairventassembly

-Remove the spring clip, element and spacer plate.

-Unscrew the seat (9) and remove along with the gasket (6).

-Fit a new gasket, seat and frame and tighten to the recommended torque (see Table 1).

-Assemble the spacer plate, fit capsule and clip.

-Align the complete air vent horizontally so that the frame clears the cover.

6.4 Howtoreplacethestrainerscreen(wherefitted)

-Remove the cover bolts (2).

-Place two screwdrivers between the body and cover on either side and lever off the body.

-Remove the strainer screen and either clean or replace it.

-Ensure the screen is located securely between the two lugs either side of the outlet passage.

-Refit the body and tighten the bolts to the recommended torque (see Table 1). Always use

a new 'O' ring (15) and body gasket (3).

Ce manuel convient aux modèles suivants

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