Free Float Drain Trap
SS1VA
Thank you for purchasing the
Free Float Drain Trap for air
and inert gases.
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. Before beginning
installation or maintenance, please read this manual to ensure
correct usage of the product.
This instruction manual is needed not only for installation, but for subsequent
troubleshooting. Please keep it in a safe place for future reference.
The contents of this manual are subject to change without notice.
1. Safety Considerations
DO NOT use for toxic, flammable or otherwise hazardous fluids. This
product is a drain trap that discharges condensate from air or inert gas
systems. Use only for air or inert gas. This product is for intended use
only. Improper use may result in such hazards as damage to the
product or malfunctions that may lead to serious accidents.
WARNING
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.
WARNING
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 which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
DO NOT use this product in excess of the maximum operating pressure
differential; such use could make discharge impossible (blocked).
CAUTION
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.
CAUTION
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.
CAUTION
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 or burns
or other injury due to malfunction or the discharge of fluids.
CAUTION
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.
CAUTION
Installation, inspection, maintenance, repairs, disassembly, adjustment
and valve opening/closing should be carried out only by trained
maintenance personnel.
CAUTION
2. Specifications
Refer to the product nameplate for detailed specifications.
* 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.
Minimum Required Condensate Load:
For SS1VA-M with a metal valve seat, a minimum
required condensate load of 0.5 kg/h (1 lb/h) is necessary to maintain a liquid seal. There is a
chance of air/gas leak if the condensate load falls below this rate.
3. Configuration
No. Name
No. Name
1 Body
7 Cover Gasket
2 Cover
8 Cover Bolt
3 Float
9 Nameplate
4 Valve Seat (Orifice)
10 Flange
5
Valve Seat (Orifice)
Gasket
11 Screw
12 Spring Washer
6 Screen
13 Connector
4. Proper Installation
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 flow.
4. To prevent air binding, inlet piping must be
straight, vertical, as short as possible and
with a minimum nominal diameter of 15 mm (
1
/
2
in). If a length of horizontal piping
between the equipment and the product is unavoidable, the horizontal piping must be
kept as short as possible. If it exceeds 200 mm (8 in), a pressure-balancing line must
be installed (see right).
5. The product must be installed vertically, inclined no more than 5° horizontally and
front-to-back.
6. Install a condensate outlet valve and outlet piping.
7. Open the inlet and outlet valves, make sure that the product functions properly.
5. Inspection and Maintenance
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 or thermometer.
If the product should fail, it may cause damage to piping and equipment, resulting in
faulty or low quality products or losses due to air or gas leakage.
When parts have been removed, or during periodic inspections, use the table to the
right to inspect the parts and replace any that are found to be defective.
Gaskets: check for warping or damage
Screen: check for clogging, corrosion or damage
Valve Seat: check for clogging, warping or scratches
Float: check for scratches, dents or water inside the float
Body, Cover: check for damage or build-up inside
6. Disassembly / Reassembly
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble. If drawings or other special documentation were supplied for the
product, any torque given there takes precedence over values shown here.
Part
During Disassembly
During Reassembly
Cover Bolt
Remove with a 17 mm (
21
⁄
32
in)
socket wrench
Coat threads with anti-seize; tighten to a
torque of 45 N
⋅
m (33 lbf
⋅
ft)
Cover
Remove; take care to prevent
any damage to the float, which
may fall out when the cover is
removed
Make sure there are no pieces of the old
gasket left on the sealing surfaces, then
reattach; be careful not to bend the float
guides (Fig. A)
Float
Remove being careful not to
scratch the polished surface
Place inside body, being careful not to
scratch or misshape
Connector
Remove
Insert into hole in cover
Cover Gasket
Remove gasket and clean
sealing surfaces
Replace with a new gasket if warped or
damaged, do not apply anti-seize
Valve Seat
Remove with a 13 mm (
1
/
2
in)
socket wrench
Coat threads with anti-seize; tighten to a
torque of 15 N
⋅
m (11 lbf
⋅
ft)
Valve Seat
Gasket
Remove gasket and clean
sealing surfaces
Replace with a new gasket if warped or
damaged, apply anti-seize
Screw &
Washer
Remove with a Philips
screwdriver
Tighten to a torque of 0.3 N
⋅
m (0.22 lbf
⋅
ft)
Screen
Remove without bending
Insert the screen with the proper orientation,
aligning screw holes (Fig. B)
(1 N
⋅
m
≈
10 kg
⋅
cm)
Figure A
Note: Do not change
the position of the
float guides. Tight
sealing cannot be
guaranteed if the float
guides have been
moved out of position.
Figure B
7. Troubleshooting
When the product fails to operate properly, use the following table to locate the cause.
Problem
Cause
Remedy
No condensate is
discharged
(blocked) or
discharge is poor
The float is damaged or filled with
condensate
Replace with a new float
The valve seat opening, screen or piping
are clogged with rust and scale
Clean parts
The trap operating pressure exceeds the
maximum specified pressure, or there is
insufficient pressure differential between
the trap inlet and outlet
Compare specifications and
actual operating conditions
Air binding has occurred
Correct the installation
(see “Proper Installation”)
The specific gravity of the fluid is not
suitable for this product
Consult TLV
Air/gas is
discharged or
leaks from the
outlet*
(blowing)
(air/gas leakage)
Rust and scale have built-up around the
valve seat or beneath the float
Clean parts
The valve seat is scratched or damaged
Replace with a new valve
seat
The float is deformed or has a build-up
Clean or replace with a new
float
Improper installation orientation
Correct the installation
There is excessive trap vibration
Lengthen the inlet piping and
fasten it securely
Air/gas is leaking
from a place other
than the outlet
Gasket(s) are deteriorated or damaged
Replace with new gasket(s)
Improper tightening torques were used
Tighten to the proper torque
* SS1VA-M with metal valve seat requires a minimum condensate load of 0.5 kg/h (1 lb/h) to
prevent any air/gas leak
Manufacturer
881 Nagasuna, Noguchi, Kakogawa, Hyogo, 675-8511 Japan
Tel: [81]-(0)79-422-1122 Fax: [81]-(0)79-422-0112
Copyright © 2017 by TLV Co., Ltd. All rights reserved
Rev. 3/2017 (T)
SS1VA-M
(with metal valve seat)
Nominal Diameter
Production Lot No.
Valve No.**
Maximum Allowable Pressure*
Max. Allowable Temperature*
Max. Operating Temperature
Model
Maximum Differential Pressure
Screw & Washer
Screen
Float Guides
Connector
Cover
Gasket
Standard
Requiring
Balancing Line
Pressure-balancing Line
Inlet Piping
INSTRUCTION MANUAL
Keep this manual in a safe place for future reference
SS1VA-R
(with rubber valve seat)
④
⑤
