TLV PowerDyne P46Y Instruction Manual

INSTRUCTION MANUAL
Keep this manual in a safe place for future reference
Steam Trap Module
Thank you for purchasing the Steam Trap Module
P46Y used to retrofit the series 711/721 made by
Yarway Corp.
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

Installation, inspection, maintenance, repairs, disassembly, adjustment and valve opening/closing
should be carried out only by trained maintenance personnel.
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 the trap 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.
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.
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.

2. Specifications

Refer to the product nameplate for detailed specifications.
Max. Allowable
Pressure PMA*
Nominal Diameter
Maximum Operating
Pressure PMO
Production Lot No.
* 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

3. Configuration

No.
1 Module Valve Seat
Air Vent Ring
2
3 Disc Holder Ring
Disc
4
5 Cover
Module Gasket
6
7 Cap
8 Nameplate
Model
Max. Allowable
Temperature TMA*
Max. Operating
Temperature TMO
Valve No.**
8
7
5
4
3
2
1
6
Name

4. Proper Installation

1. Before installation, be sure to remove all protective seals.
2. Remove the module valve seat unit of the steam trap
711/721.
3. After removal and disposal of the module clean out dirt
and scale from the trap body. Check that the seat threads
have not been eroded due to steam leakage. If they are
damaged the trap cannot be used. A TLV steam trap
P46SRN should replace it.
4. To retrofit the existing steam trap install the P46Y parts
as shown.
5. Mount air vent ring, disc holder ring and disc on module
valve seat (the module gasket is already attached).
6. Insert the module into the body.
7. Coat cover threads with anti-seize, put it on top and tighten
to the proper torque.
8. If there is a problem, see the "Troubleshooting" section.

5. Inspection and Maintenance

Operational Check: A visual inspection can be carried out to determine whether the
steam trap is operating properly or has failed. Periodically (at least biannually) the
operation should also be checked using diagnostic equipment such as TLV TrapMan
or TLV Pocket TrapMan.
(When conducting a visual inspection, flash steam is sometimes mistaken for steam
leakage. For this reason, the use of diagnostic equipment is highly recommended.)
Procedure (P46Y only; follow Yarway's manual for the body)
Cover Check inside for damage, dirt, grease, oil film, rust, scale
Gaskets Check for warping or damage
Valve Seat Surface: Check for scratches or wear
Disc Check for damage or wear
Disc Holder Ring Check for damage or wear
Air Vent Ring Check for damage or wear

6. Disassembly / Reassembly

(P46Y only; follow Yarway's manual for the body)
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble.
Part During Disassembly
Cover Remove with a 1 " (41 mm)
5 /
8
socket wrench
Disc Remove, being careful not to
scratch the lapped surface
Disc Holder Remove without bending, as it
Ring will not return to its proper
shape
Air Vent Ring Remove without bending
Module Valve Remove, being careful not to
Seat scratch the lapped surface
Module Do not remove
Gasket

7. Troubleshooting

No Screen is clogged with rust or scale
(Model 721)
condensate
discharged
Air vent ring (bimetal) is broken or worn,
(blocked) or causing air-binding
discharge is
Disc holder ring is broken or worn, causing
poor
air binding
Disc is sticking to valve seat (due to oil etc.)
Steam
Valve closure is obstructed by scale, etc.
leakage or
Disc or module valve seat is worn
blowing
Air vent ring (bimetal) or disc holder ring is
from valve
broken, obstructing valve closure
seat
Disc is sticking to top of cover (due to oil, etc.)
Valve
Foreign matter or oil film on disc or module
chattering
valve seat
(leakage)
Scratches or wear on disc or module valve
seat
Leakage
Bypass valve is damaged or open
from a
Module valve seat gasket is damaged
location
Cover is loose or sealing surface between
other than
cover and module valve seat is damaged
valve seat
Inlet and discharge channels may be
connected, due to erosion
Manufacturer:
881 Nagasuna, Noguchi, Kakogawa, Hyogo 675-8511, Japan
Tel: [81]-(0)79-422-1122
Copyright c 2015 by TLV Co., Ltd. All rights reserved
During Reassembly
Coat threads with anti-seize and
tighten to 87 lbf ・ ft (119 N ・ m)
Make sure the seat surface (the
lapped side) is facing down, toward
valve seat
Make sure that it does not stick up
higher than the valve seat surface
Reinsert without bending
Insert into the body levelly, do not tilt
If gasket is damaged, replace module
valve seat
Clean
Replace air vent ring
Replace disc holder ring
Clean
Clean or replace screen
Replace worn parts
Replace broken parts
Clean
Clean
Replace disc or module
valve seat
Replace or close valve
Replace module gasket
Tighten or replace cover,
or replace module valve
seat
Replace trap (study trap
capacity)
Fax: [81]-(0)79-422-0112
Printed on recycled paper
Rev. 4/2016 (M)