Mueller BFV Series 90 High Performance Butterfly Valves Instruction Manual
- June 9, 2024
- MUELLER
Table of Contents
BFV Series 90 High Performance Butterfly Valves
Instruction Manual
Installation Instructions
Series 90 High Performance
Butterfly Valves
High Performance BFV
WARNING
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information can result in death,
serious personal injury, property damage, or damage to the equipment.
Keep this Manual for future reference.
DANGER
Electricity, electrocution and shock hazards.
NOTICE
Warning applies where an actuator is used.
WARNING
Local building or plumbing codes may require modifications to the information
provided. You are required to consult the local building and plumbing codes
prior to installation. If the information provided here is not consistent with
local building or plumbing codes, the local codes should be followed. This
product must be installed by a licensed contractor in accordance with local
codes and ordinances.
NOTICE
Follow the guidelines listed here for proper installation, operation, and
maintenance.
Inquire with governing authorities for local installation requirements.
Basic Principle of Operation
High Performance BFV Butterfly Valves are an eccentric butterfly valve with
RPTFE.
Version Lug 2″ up to 40″.
Hardware Description
2″ up to 40″.
Version| Size| Maximum Permissible Pressure at Room
Temperature| Version Carbon Steel
---|---|---|---
Lug High Pressure| 2″ – 40″| 580 psi| 14°F to +122°F
Storage
Handling
The boxes and pallets containing the products must be handled by appropriate
lifting equipment, respecting the safety rules (limits of use of the lifting
equipment, safety measures of the company or site, etc…).
WARNING
Valves over 30 lbs. must be handled by straps attached to drums or lifting
holes (or lifting shackles).
NOTICE
Product should be stored in its original packaging until installation. Product
should be stored in a manner such that it is not exposed to vibrations.
Installation
WARNING
Before installation, the pipes must be depressurized and purged (empty of its
fluid) in order to avoid any danger to the operator.
Preparation
The pipe work must be correctly aligned so that no extra stress is exerted on
the valve casing.
Check the compatibility of the connection flanges against the operating
pressure:
the PN number of the flanges must be greater or equal to the operating
pressure.
The valve is a machined piece of equipment and must not be used to prise apart
the flanges.
Installation Conditions:
It is recommended that the distances mentioned below be respected in order to
prolong the lifetime of the valve.
Mounting the valve close to pipe work junctions places it in turbulent zones
which increase its wear.
Installation Diagrams
A. Mounting Between Flanges:
Lug – All Versions
Dia. In.| | 2″| 2 1/2″| 3″| 4″| 5″|
6″| 8″| 10″| 12″| 14″| 16″| 18″| 20″|
24″
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
ANSI B16.5| Class 150| X| X| X| X| X| X| X| X| X| X| X| X| X| X
ANSI B16.47A| **** Class 150| See ANSI B 16.5
MSS SP44| Class 150| | | | | | | | | X| X| X| X| X| X
X Available for all versions
Maximum permissible pressure is
| Version | In. | Connection Type | Maximum Pressure |
|---|---|---|---|
| RPTFE/Lug | 2″ – 40″ | Flanged | 290 psi |
Note: Lug 18″ and above require mounting with a counter flange.
WARNING
For safety reasons, the throttle valve used in these mounting conditions, at
the end of the pipe, provides only a full flange function. In the closed
position, the maneuvering device must be locked in order to avoid any
unauthorized maneuver. Opening the valve is only possible after taking all
safety measures.
NOTICE
These valves are designed for “dead-end” service. These can be installed at
the end of pipelines.
B. Inspection
The valve will be unpacked carefully without shock or fall.
The visual inspection of the valve before assembly is imperative, check the
absence of foreign bodies in the valve and the pipe. Clean with water or
compressed air if necessary.
Check the surface condition of the valve flange seals.
Confirm that the materials indicated on the plate comply with your demand and
conditions of use.
Check the preferred flow direction according to the type of application.
NOTICE
The corrosion protection treatment of steel parts constitutes temporary
protection. A coating by paint is recommended before the valve is put into
service.
NOTICE
Beware of weld drops and metal chips that deteriorate the joints.
Never weld the flanges on the piping once the faucet is in place (risk of
damage to the cuff).
Assembly
Measurement to be taken before the first commissioning.
Spread the flanges sufficiently to slide the valve freely without causing
damage (without contact).
Ensure that flanges are parallel and aligned.
Place the seals next to the flange faces.
Center the tap by assembling the tie rods trapped in the guidance ears of the
body (Butterfly closed).
Gradually tighten the diametrically opposed tie rods alternately until the
valve body has contact with the flange faces.
Control after assembly: perform a complete opening and closing of the throttle
to ensure that nothing opposes its travel.
Mount the valves with diameter > 20″ with the horizontal shaft.
Tighten the cable press moderately, but enough to ensure its tightness.
Bolting Instructions
General
- All cover styles
- All nuts are to be tightened snug in a 90 degree pattern.
- After all nuts are snug, then apply full torque per specification for unit.
- When adding full torque, nuts should also be tightened in a 90 degree pattern.
For Four and Eight-Bolt Flanges:
- 1st Round – 30 percent of final torque
- 2nd Round – 60 percent of final torque
- 3rd Round – 100 percent of final torque
- Final Round – Clockwise or Counter-Clockwise around the flange
For Flanges with 12 or More Bolts:
- 1st Round – 20 percent of final torque
- 2nd Round – 40 percent of final torque
- 3rd Round – 80 percent of final torque
- 4th Round – 100 percent of final torque
- Final Round – Clockwise or counter-clockwise around the flange
Troubleshooting
Issue| Causes|
Solutions
---|---|---
Non-Waterproof Valve
Internal Leak| Leaking Valve| Close the valve
Control actuators
Foreign body preventing the butter- fly from closing| Open the pipe, control
and remove the foreign body
Damaged seal| Replace the seal
Damaged butterfly| Replace the butterfly Replace the seal (Recom- mended)
External leak (Shaft/axis)| Damaged sealing
Press tow not tightened| Replace the seal Tighten the tow press
Damaged lid seal| Replace the lid seal
External leakage (flange)| Damaged flange seal| Replace the seal
Poorly assembled seal| Disassemble and reassemble the assembly. Replace the
seal if necessary
Damaged seal & seat| Replace seals and seat
High valve torque| Poorly assembled seal| Disassemble and reassemble the
assembly. Replace the seal if necessary
Damaged seal| Replace the seal
Shaft and actuator not aligned| Align the shaft and actuator
Deformed tree line| Replace the valve
The valve does not work| Damaged seal| Replace the seal
Poorly assembled seal| Disassemble and reassemble the assembly. Replace the
seal if necessary
Foreign body preventing the butter- fly from closing| Open the pipe, control
and remove the foreign body
Faulty actuator| Increase air pressure
Check and replace the actua- tor if necessary
Damaged Shaft/Actuator Coupling| Replace the key, shaft or actuator
Pre-Commissioning Protection
If a valve is assembled on a pipe more than 6 months before its commissioning, the following operations must be carried out:
- Perform an opening and closing cycle 1 time per month.
- Leave the valve in the open position.
- Before the valve is put into service, we advise you to have the good condition of the valve checked by a technician as part of an after-sales service.
Maintenance
The valve has been designed to operate for a long time without maintenance.
Depending on the conditions of use, the frequency of valve service is
recommended every 15,000 cycles or every year.
When service is necessary, check:
- External sealing either to the axis or to the flanges.
- Internal sealing.
- The maneuverability of the valve.
When one of these defects appears, the change of joints is necessary.
WARNING
Depressurize the pipe before performing any maintenance on the valve.
If this instruction is not respected, this intervention can cause serious
accidents of the personnel and / or significant damage to the equipment.
Limited Warranty: M ueller Steam Specialty warrants each product to be
free from defects in material and workmanship under normal usage for a period
of one year from the date of original shipment. In the event of such defects
within the warranty period, the Company will, at its option, replace or
recondition the product without charge. This shall constitute the sole and
exclusive remedy for breach of warranty, and the Company shall not be
responsible for any incidental, special or consequential damages, including
without limitation, lost profits or the cost of repairing or replacing other
property which is damaged if this product does not work properly, other costs
resulting from labor charges, delays, vandalism, negligence, fouling caused by
foreign material, damage from adverse water conditions, chemical, or any other
circumstances over which the Company has no control. This warranty shall be
invalidated by any abuse, misuse, misapplication or improper installation of
the product. THIS WARRANTY IS IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Any implied warranties that are imposed by law are limited in duration to one
year. Some States do not allow limitations on how long an implied warranty
lasts, and some States do not allow the exclusion or limitation of incidental
or consequential damages. Therefore the above limitations may not apply to
you. This Limited Warranty gives you specific legal rights, and you may have
other rights that vary from State to State. You should consult applicable
state laws to determine your rights.
A WATTS Brand
USA: T: 800-334-6259
F: 800-421-6772
MuellerSteam.com
Latin America: T: (52) 55-4122-0138
MuellerSteam.co
EDP M6762732
© 2022 Watts
IS-MS-BFV 2246