TLV P46S, P21S Instruction Manual
INSTRUCTION MANUAL
Keep this manual in a safe place for future reference
THERMODYNAMIC STEAM TRAP
MODEL P46S/P21S ver.C
P46S/P21S ver.C
Option
( )
BD1
Manufacturer
881 Nagasuna, Noguchi, Kakogawa, Hyogo 675-8511, Japan
Tel: [81]-(0)79-422-1122 Fax: [81]-(0)79-422-0112
Copyright (C) 2021 by TLV CO., LTD. All rights reserved.
Introduction
Before beginning installation or maintenance, please read this manual to ensure correct use of
the product. Keep the manual in a safe place for future reference.
The P46S steam trap can be used without adjustment for small capacity applications between
0.03 and 4.6 MPaG (5 and 650 psig). For best performance over extended periods, it is
recommended that the trap be operated at or below 2.1 MPaG (300 psig).
The P21S ver.C steam trap can be used without adjustment for small capacity applications
between 0.025* and 2.1 MPaG (3.5* and 300 psig).
These models are suitable for steam mains, branch pipes, tracer lines, etc. In particular, the P21S
ver.C is purpose-built for troublesome Copper Tracing applications, whereas the P46S is
designed for multi-purpose applications.
* Vertical installation: 0.04 MPaG (6 psig)
1 MPa = 10.197 kg/cm
For products with special specifications or with options not included in this manual, contact TLV
for instructions.
The contents of this manual are subject to change without notice.
2
, 1 bar = 0.1 MPa
1. 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.
Indicates a DANGER, WARNING or CAUTION item.
DANGER
WARNING
CAUTION
CAUTION
Indicates an urgent situation that 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.
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.
DO NOT subject this product to condensate loads that exceed its
discharge capacity. Failure to observe this precaution may lead to
condensate accumulation upstream of the trap, resulting in reduced
equipment performance or damage to the equipment.
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
1
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.
CAUTION
2.
Specifications Technische Daten Données techniques
Refer to the product nameplate for detailed specifications.
Maximum Allowable Pressure*
Nominal Diameter
Maximum Operating Pressure
Production Lot No.
Maximum Allowable Back Pressure: 80% of inlet pressure
* Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are
PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS.
** P46S : For best performance over extended periods, it is recommended that the trap be
operated at or below 2.1 MPaG (300 psig).
*** Valve No. is displayed for products with options. This item is omitted from the nameplate when
there are no options.
CAUTION
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.
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 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.
Model
**
Valve No.***
To avoid malfunctions, product damage, accidents or serious injury,
install properly and DO NOT use this product outside the specification
range. Local regulations may restrict the use of this product to below the
conditions quoted.
Max. Allowable
Temperature* TMA
Max. Operating
Temperature TMO
Minimum Operating Pressure
Horizontal Vertical
P46S
P21S
ver.C
0.03 MPaG (5 psig)
0.025 MPaG
(
3.5 psig
)
0.04 MPaG
(
6 psig
)
2
3. Configuration
P46S P21S ver.C
8
7
3
2
8
7
3
2
1
4
5
6
Body
Cover
Disc
Screen
Description
M*
R*
-
-
-
-
No.
1
2
3
4
* M = Maintenance Kit; R = Repair Kit; replacement parts are available only in their respective kits.
1
4
5
6
No.
Screen Holder Gasket
5
Screen Holder
6
Cap
7
Nameplate
8
Description
M*
R*
-
-
-
-
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