TLV SS1NL Manuale utente

172-65390MA-04 (SS1 Series) 13 September 2021

Free Float Steam Trap

SS1NL / SS1NH

SS1VL / SS1VH

172-65390MA-04 (SS1 Series) 13 Sep 2021

Contents

Introduction .......................................................................1

Safety Considerations.......................................................2

Checking the Piping..........................................................4

Operation ..........................................................................5

Specifications....................................................................6

Configuration.....................................................................7

Installation.........................................................................8

Maintenance......................................................................9

Disassembly/Reassembly...............................................10

Troubleshooting ..............................................................13

TLV EXPRESS LIMITED WARRANTY...........................14

Service............................................................................16

Introduction

Thank you for purchasing the TLV free float steam trap.

This product has been thoroughly inspected before being shipped from the

factory. When the product is delivered, before doing anything else, check the

specifications and external appearance to make sure nothing is out of the

ordinary. Also be sure to read this manual carefully before use and follow the

instructions to be sure of using the product properly.

This free float steam trap uses a precision-ground float and three-point

support for the valve body. With no hinges or levers, the trap automatically

continuously discharges condensate, preventing it from collecting.

The three-point seating for the valve body supports the precision-ground float

securely at three points and ensures a high degree of sealing when even

only minute quantities of condensate are present.

This free float steam trap is ideal for places at which extremely small

amounts of condensate are generated, such as superheated and saturated

steam mains and branches, and trace lines.

If detailed instructions for special order specifications or options not contained

in this manual are required, please contact TLV for full details.

This instruction manual is intended for use with the model(s) listed on the

front cover. It is necessary not only for installation but also for any

troubleshooting required. Please keep it in a safe place for future reference.

172-65390MA-04 (SS1 Series) 13 Sep 2021

Safety Considerations

•Read this section carefully before use and be sure to follow the instructions.

•Installation, inspection, maintenance, repairs, disassembly, adjustment and valve

opening/closing should be carried out only by trained maintenance personnel.

•The precautions listed in this manual are designed to ensure safety and prevent

equipment damage and personal injury. For situations that may occur as a result

of erroneous handling, three different types of cautionary items are used to

indicate the degree of urgency and the scale of potential damage and danger:

DANGER, WARNING and CAUTION.

•The three types of cautionary items above are very important for safety: be sure to

observe all of them as they relate to installation, use, maintenance, and repair.

Furthermore, TLV accepts no responsibility for any accidents or damage occurring

as a result of failure to observe these precautions.

Symbols

Indicates a DANGER, WARNING or CAUTION item.

Indicates an urgent situation which poses a threat of death or

serious injury

Indicates that there is a potential threat of death or serious injury

Indicates that there is a possibility of injury or equipment/product

damage

NEVER apply direct heat to the float.

The float may explode due to increased internal pressure,

causing accidents leading to serious injury or damage to property

and equipment.

Install properly and DO NOT use this product outside the

recommended operating pressure, temperature and other

specification ranges.

Improper use may result in such hazards as damage to the

product or malfunctions that may lead to serious accidents. Local

regulations may restrict the use of this product to below the

conditions quoted.

DO NOT use this product in excess of the maximum

operating pressure differential.

Such use could make discharge impossible (blocked).

Take measures to prevent people from coming into direct

contact with product outlets.

Failure to do so may result in burns or other injury from the

discharge of fluids.

Continued on the next page

DANGER

WARNING

CAUTION

WARNING

CAUTION

172-65390MA-04 (SS1 Series) 13 Sep 2021

When disassembling or removing the product, wait until the

internal pressure equals atmospheric pressure and the

surface of the product has cooled to room temperature.

Disassembling or removing the product when it is hot or under

pressure may lead to discharge of fluids, causing burns, other

injuries or damage.

Be sure to use only the recommended components when

repairing the product, and NEVER attempt to modify the

product in any way.

Failure to observe these precautions may result in damage to the

product and burns or other injury due to malfunction or the

discharge of fluids.

Use only under conditions in which no freeze-up will occur.

Freezing may damage the product, leading to fluid discharge,

which may cause burns or other injury.

Use only under conditions in which no water hammer will

occur.

The impact of water hammer may damage the product, leading to

fluid discharge, which may cause burns or other injury.

CAUTION

172-65390MA-04 (SS1 Series) 13 Sep 2021

Checking the Piping

Use only under conditions in which no water hammer will occur.

The impact of water hammer may damage the product, leading to fluid

discharge, which may cause burns or other injury.

Check to make sure that the pipes to be connected to the trap have been installed

properly.

1. Is the pipe diameter suitable?

2. Is the piping where the trap is to be installed horizontal (for the SS1NL/SS1NH)

or vertical (for the SS1VL/SS1VH)?

3. Has sufficient space been secured for maintenance?

4. Have maintenance valves been installed at the inlet and outlet?

If the outlet is subject to back pressure, has a check valve (TLV-CK) been

installed?

5. Is the inlet pipe as short as possible, with as few bends as possible, and installed

so the liquid will flow naturally down into the trap?

6. Has the piping work been done correctly, as shown in the figures below?

Requirement

Correct

Incorrect

Install catchpot with the

proper diameter.

Diameter is too small.

Make sure the flow of

condensate is not

obstructed.

Diameter is too small and

inlet protrudes into pipe

interior.

To prevent rust and scale

from flowing into the trap,

the inlet pipe should be

connected 25 – 50 mm

(1 – 2 in) above the base

of the T-pipe.

Rust and scale flow into

the trap with the

condensate.

When installing on the

blind end, make sure the

flow of condensate is not

obstructed.

Condensate collects in the

pipe.

CAUTION

172-65390MA-04 (SS1 Series) 13 Sep 2021

Operation

Principles of air and condensate discharge:

Start-up Air and Cold Condensate

Discharge

At start-up, before steam is supplied,

the system is cold and the bimetal air

vent strip is contracted, holding the

float off of the valve seat. This allows

for the rapid discharge of air and cold

condensate through the valve when

steam is first supplied to the system.

Condensate Discharge

If the temperature of the condensate

rises above 90°C (194°F), the bimetal

air vent strip expands allowing the

float to block the valve seat. Rising

condensate levels cause the float to

rise due to buoyancy, opening the

valve and allowing hot condensate to

be discharged.

Closed Position

When the condensate flow rate

decreases, the float falls, closing off

the valve seat opening.

A water seal is maintained at all times

over the valve seat opening to prevent

steam loss.

Air

Steam

Condensate

172-65390MA-04 (SS1 Series) 13 Sep 2021

Specifications

Install properly and DO NOT use this product outside the recommended

operating pressure, temperature and other specification ranges.

Improper use may result in such hazards as damage to the product or

malfunctions that may lead to serious accidents. Local regulations may restrict

the use of this product to below the conditions quoted.

DO NOT use the product in excess of the maximum operating pressure

differential; such use could make discharge impossible (blocked).

Use only under conditions in which no freeze-up will occur. Freezing may

damage the product, leading to fluid discharge, which may cause burns or other

injury

Refer to the product nameplate for detailed specifications.

SS1NL/SS1NH

SS1VL/SS1VH

Nominal Diameter

Maximum Allowable Pressure (PMA)*

Maximum Operating Pressure (PMO)

Valve No.**

Model

Production Lot No.

Maximum Allowable Temperature (TMA)*

Maximum Operating Temperature (TMO)

* Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are

PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS.

** Valve No. is displayed for products with options. This item is omitted from the

nameplate when there are no options.

CAUTION

D**

172-65390MA-04 (SS1 Series) 13 Sep 2021

Configuration

SS1NL/SS1NH

SS1VL/SS1VH

No.

Name

Body

Cover

Float



Valve Seat



Valve Seat Gasket



Screen



Cover Gasket



Cover Bolt

Air Vent Strip

(Bimetal)



Screw



Spring Washer



Nameplate

Flange

Connector

No.

Name

Body

Cover*

Float



Valve Seat



Valve Seat Gasket



Screen



Cover Gasket



Cover Bolt

Air Vent Strip

(Bimetal)



Screw



Spring Washer



Nameplate

Flange

Connector

* Includes attached float guides

Replacement parts are available

only in the following kits:

M = Maintenance Kit

R = Repair Kit

F = Float

172-65390MA-04 (SS1 Series) 13 Sep 2021

Installation

Install properly and DO NOT use this product outside the recommended

operating pressure, temperature and other specification ranges.

Improper use may result in such hazards as damage to the product or

malfunctions that may lead to serious accidents. Local regulations may restrict

the use of this product to below the conditions quoted.

Take measures to prevent people from coming into direct contact with

product outlets. Failure to do so may result in burns or other injury from the

discharge of fluids.

1. Before installation, be sure to remove all protective seals.

2. Before installing the product, open the inlet valve and blow out the piping to

remove any piping scraps, dirt and oil. Close the inlet valve after blowdown.

3. Install the product so the arrow on the body is pointing in the direction of

condensate flow.

4. The product must be installed within the allowable angles of inclination of 5°

horizontally and front-to-back.

5. Install a condensate outlet valve and outlet piping.

6. Open the inlet and outlet valves and check to make sure that the product

functions properly.

If there is a problem, determine the cause using the “Troubleshooting” section in this

manual.

Tolerance Angle for Installation: 5°

SS1NL/SS1NH (Horizontal Installation Model)

SS1VL/SS1VH (Vertical Installation Model)

CAUTION

172-65390MA-04 (SS1 Series) 13 Sep 2021

Maintenance

Take measures to prevent people from coming into direct contact with

product outlets. Failure to do so may result in burns or other injury from the

discharge of fluids.

Be sure to use only the recommended components when repairing the

product, and NEVER attempt to modify the product in any way. Failure to

observe these precautions may re

sult in damage to the product or burns or other

injury due to malfunction or the discharge of fluids.

Operational Check

A visual inspection of the following items should be done on a daily basis to

determine whether the product is operating properly or has failed. Periodically (at

least biannually) the operation should also be checked by using diagnostic

equipment, such as a stethoscope, thermometer, or TLV TrapMan.

If the product should fail, it may cause damage to piping and equipment, resulting in

faulty or low quality products or losses due to steam leakage.

Normal

Condensate is discharged continuously, together with flash steam,

and the sound of flow can be heard.

Blocked

(Discharge Impossible)

No condensate is discharged. The product is quiet and makes no

noise, and the surface temperature of the trap is low.

Blowing

Live steam continually flows from the outlet and there is a

continuous metallic sound.

Steam Leakage

Live steam is discharged through the product outlet together with

condensate, accompanied by a high-pitched sound.

(When conducting a visual inspection, flash steam is sometimes mistaken for steam leakage.

For this reason, the use of a steam trap diagnostic instrument [TLV TrapMan] in conjunction

with the visual inspection is highly recommended.)

Parts Inspection

When parts have been removed, or during periodic inspections, use the following

table to inspect the parts and replace any that are found to be defective.

Procedure

Gasket(s): Check for warping and damage

Screen: Check for clogging and corrosion

Float: Check for scratches, dents, etc.

Valve Seat: Check for damage

Valve Seat Opening: Check for rust, scale, oil film, wear or damage

CAUTION

White jet

containing

water droplets

Flash Steam

Clear, slightly

bluish jet

Live Steam Leakage

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