VSI 2100 Series User manual

VSI, LLC.
2” - 48” SERIES 2100
RESILIENT SEATED BUTTERFLY VALVES
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
VSI SERIES 2100 RESILIENT SEATED BUTTERFLY VALVES
Publicaon: DOC-00000207(C)
MAY 2022

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
DOC-00000207
05-22 2© 2022 VSI, LLC.
TABLE OF CONTENTS
INSTRUCTIONS 3
SAFETY MESSAGES 3
FUNCTIONAL DESCRIPTION 4
RATINGS 4
INSTALLATION 5
TABLE 1 BOLT LENGTH 7
FIGURE 1 BOLT TIGHTENING 7
OPERATION 8
MAINTENANCE 8
TROUBLESHOOTING 8

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
© 2022 VSI, LLC. DOC-00000207
05-22
3
SCOPE:
This installaon, operaon, and maintenance manual covers the VSI Series 2100 Buery valve and should be
read and understood thoroughly by all pares responsible for installaon and connued use/maintenance.
WARNINGS:
The crical safety messages within this manual are labeled with an exclamaon symbol within a red triangle
ag. Care should be taken to thoroughly read and understand these warnings before proceeding to ensure no
damage to equipment occurs. Failure to following all warnings could result in injury or death.
!WARNING!
All pares that take part in any installaon or connued use/maintenance are cauoned to be
vigilant in the possible exposure to media that is contained within the valve and its pipeline.
Because of the vast range of media that could be within the valve, protecon from pipeline
media is not within the scope of this manual. All personnel should be aware of the media
within the valve and take appropriate precauons when exposure is possible while installing
or servicing the valve.
RECEIVING:
The Series 2100 Buery valve is rugged and will be packaged to provide protecon during most shipping
incidents, however care should be taken to inspect the valve on receipt for any possible shipping damage.
Inspecon should be performed as soon as praccal. Failure to promptly nofy VSI of any shipping damage
may invalidate any claim for shipping damage. Most shipments from VSI will be made FOB Origin, unless noted
on the sales documents, the purchaser will own the freight while in transit, assumes all risk while in transit,
and will be responsible for reporng shipping damage promptly to the carrier.
!WARNING!
Read all applicable instrucons and direcons prior to any maintenance, installaon or
troubleshoong.
SECTION 1 - FUNCTIONAL DESCRIPTION
The SERIES 2100 Buery Valve is a resilient-seated concentric buery valve for use in general industrial and
commercial applicaons. Both lugged and wafered end connecons are available, and a variety of opons in
disc, sha and seat materials.
Size, pressure rang, and seat material are shown on the valve tag. The valve disc rotates 1/4 turn and provides
bubble ght shuto in water pipelines. The valves can be used to regulate ow rates by posioning the disc
between 10 and 90 degrees open.

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
DOC-00000207
05-22 4© 2022 VSI, LLC.
SECTION 2 - RATINGS
!WARNING!
Valves shall never be exposed to temperatures or pressures beyond their rated capacity.
Exposure to excess temperature or pressure will lead to increased likelihood of failure.
Sec 2.1 Body Pressure Ratings
Hydrostac body maximum pressure rangs for the Series 2100 Buery Valve are shown below. Seat
pressure may be a lower rang than the hydrostac pressure rang and is noted on valve tag.
Temperature (°F) Pressure (psi)
-20 to 100 250
200 235
300 215
400 200
500 170
600 140
650 125
Sec 2.2 Seat Temperature Ratings
Valve seats in the Series 2100 Buery Valve are rated connuously to the following temperatures:
Material Temperature Rang (°F)
EPDM -30 to 225
PTFE 40 to 250
Buna-N 10 to 180
Neoprene 20 to 200
Hypalon 0 to 275
Viton 10 to 275
High Temp. Viton 10 to 400
SECTION 3 - INSTALLATION
!WARNING!
Valves are a signicant component of any piping system. Failure due to faulty installaon,
improper operaon or maintenance in such systems could result in damage, down me,
and costly repairs. Many problems can be traced to improper installaon, operaon or
maintenance procedures.
Sec 3.1 Unloading
Inspect valves upon receipt for any damage that may have occurred during shipping, as well as conformance
with quanty, conguraon and descripon from the shipping order. When removing valves from the shipping
containers, be careful not to li the valves using slings or chain around the operang sha, actuator, or thru
the waterway. Instead, li the valves with eye bolts or rods thru the ange holes.

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
© 2022 VSI, LLC. DOC-00000207
05-22
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Sec 3.2 Storage
The valves should be stored on a pallet or “skid” in a clean, dry warehouse. If the valves must be stored
outside, the following should apply:
1. Valves must be kept o the ground high enough to avoid standing water.
2. Cover the valves with a water repellent cover (not included with the valve), to prevent dirt and water from
compromising the valve body or seat.
Sec 3.3 Guidelines
1. SERIES 2100 Buery Valves are designed for installaon between ANSI Class 125/150 at or raised face
anges. Gaskets are not required.
2. SERIES 2100 Buery Valves have been designed so that the disc, in the open posion, will clear the inside
diameter of schedule 40 and 80 steel pipe.
! WARNING!
When installing the valve adjacent to lined pipe, as-cast ngs, or schedule 80 plasc pipe. In
some instances the disc in the open posion will interfere with the adjacent component and
could cause damage to the disc.
3. SERIES 2100 Buery Valves are a bidireconal seat design. For installaon on dead end service, the
special dead end service opon must be used or a ring ange must be installed on the exposed valve end.
4. For the best results in slurry service, posion the valve assembly so that the valve stem is in the horizontal
posion, and the lower disc edge opens downstream. This will create a self-ushing eect, thereby
extending the service life of the valve.
5. SERIES 2100 Buery Valves should be installed a minimum of six (6) pipe diameters upstream and four (4)
pipe diameters downstream from other line components (valves, elbows, etc.). This is not always praccal,
but it is important to design in as much distance as possible.
Sec 3.4 Pre-installation
1. Remove any protecve ange covers from the valve and the pipe anges.
2. Remove all material such as weld splaer, oil, grease, and dirt from the valve, anges, and pipeline.
3. Check the valve idencaon tag to make sure it is the appropriate valve for the locaon and service that it
is being installed for.
4. See Table 1 to make sure you have the appropriate size, threading and length of bolts for the valve.
Sec 3.5 Installation
1. SERIES 2100 Buery Valves should be installed in the “Almost Closed” posion. You want to open the
valve so that the seat is not enrely compressed, but sll have the disc edges within the edges of the valve
body.
2. Spread the anges to exceed the valves face to face dimension.
3. Carefully place the valve into place between the anges. Take care that the ange seang surface and the
valve seats are not scratched. Do not apply any lubricants to the seat faces as this may damage them.
4. Line up, center and secure the valve between the anges using the desired bolts or studs. Do not ghten
bolts at this me.
5. Carefully open the valve to assure free and unobstructed disc movement.

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
DOC-00000207
05-22 6© 2022 VSI, LLC.
TABLE 1: RECOMMENDED BOLT LENGTHS
Take note that below bolng torques assume use of steel at face anges to ANSI B16.5 or ANSI B16.47
dimensions with no gaskets or washers. Use of anges diering from these standards, raised face anges,
gaskets, washers, and/or lubricaon will aect the stated recommendaons.
Valve Soluons Lug and Wafer Valves, 2” - 36”, ASME 125/150 Bolt Paern
Valve Size Thread Size
UNC
Number
Required
Lug
Bolt Length (in)
Wafer
Stud Length (in)
Min Torque
(-lbs)
Max Torque
(-Lbs)
2” (DN50) 5/8 - 11 4 1.5 4.75 15 70
2.5” (DN65) 5/8 - 11 4 1.625 5.25 15 70
3” (DN75) 5/8 - 11 4 1.625 5.25 15 70
4” (DN100) 5/8 - 11 8 2 5.75 15 70
5” (DN125) 3/4 - 10 8 2.25 6.5 30 120
6” (DN150) 3/4 - 10 8 2.25 6.5 30 120
8” (DN200) 3/4 - 10 8 2.25 7 30 120
10” (DN250) 7/8 - 9 12 3 8 50 200
12” (DN300) 7/8 - 9 12 3 9 50 200
14” (DN350) 1 - 8 12 3 9.5 70 240
16” (DN400) 1 - 8 16 3.25 10.5 70 240
18” (DN450) 1 1/8 - 7 16 3.5 11.5 100 380
20” (DN500) 1 1/8 - 7 20 4 12.25 100 380
24” (DN600) 1 1/4 - 7 20 4.75 14 150 520
30” (DN750) 1 1/4 - 7 24
+4
4.75
4.25
14.75
(Bolt) 4.25 150 520
36” (DN900) 1 1/2 - 6 28
+4
6
5
18
(Bolt) 5 160 580
6. While gradually removing the ange spreaders, center the valve body to the anges and ghten the bolts
hand ght. Slowly close the valve to check for adequate disc clearance.
7. Return the valve to the “Almost Closed” posion.
8. Using an alternang cross-over paern shown in Figure 1, ghten the bolts to the minimum torque values
listed in Table 1. When installing valves 12” or larger (excluding dead end service valves), the installer
should alternate between each valve ange side when ghtening to avoid seat damage.
9. If an actuator is being used, connect any pneumac or electrical connecons as required by the actuator
documentaon.
10. Cycle the actuator fully, to the open and then to the closed posion, checking the actuator travel stop
sengs for proper disc alignment. The valve should be operated to assure that no binding is taking place.
11. Pressurize the piping to the valve and inspect for leakage. If leakage occurs, ghten the bolts using the
cross-over paern, increasing the torque, ll the leakage stops. Do not exceed maximum torques listed in
Table 1.
12. The valve is now ready for service.

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
© 2022 VSI, LLC. DOC-00000207
05-22
7
9
13
5
17
3
11
20
8
16
210
14
6
18
4
12
19
7
15
1
15
9
3
7
11
2
6
10
4
8
12
1 5
3
7
26
4
8
31
4 2
SECTION 4 - OPERATION
The Series 2100 closes by rotang the sha clockwise which turns the disc clockwise ll it is perpendicular to
the pipe centerline blocking ow. The sha is square and features a line cut into the top of the sha indicang
the plane of the disc. The travel of the sha and disc is quarter turn (90 degrees).
The valve is typically operated by lever, gearbox, or a powered actuator. For a lever the travel is directly
coupled to the disc travel. For a gearbox, closure is achieved by manually turning the input of the gearbox
mulple turns unl the valve is in the desired posion. For a powered actuator either uid or electric signals
drive the valve to the desired posion; please refer to the powered actuator’s manual for details.
In all instances, the valve’s operator will be equipped with end of travel limits to protect the valve from being
opened or closed past its natural limits. Indexing and adjustment of the operator’s limits is crical, please refer
to the actuator’s manual for details on adjustment.
FIGURE 1: RECOMMENDED BOLT TIGHTENING PATTERN

INSTALLATION, OPERATION AND MAINTENANCE
VSI SERIES 2100 BUTTERFLY VALVES
DOC-00000207
05-22 8© 2022 VSI, LLC.
SECTION 5 - MAINTENANCE
Roune maintenance or lubricaon is not required.
Sec 5.1 Parts
Order parts from your VSI, LLC. sales representave. Please include the serial number, located on the valve tag,
when ordering parts.
SECTION 6 - TROUBLESHOOTING
SYMPTOM PROBLEM SOLUTION
The valve opens only a
few degrees and stops.
(The valve will not open
fully.)
Improper installaon. The valve is
improperly aligned.
Loosen the ange bolts, realign the valve with
the anges, and reghten the bolts to the
recommend torques.
Leakage past the ange
face.
The ange bolts are not evenly
torqued.
Loosen the ange bolts and reghten them in
the recommended order and toques.
Improper anges. Please refer to Installaon Guidelines on page
4 for proper ange requirements.
Leakage in the closed
posion. (Leakage in
the pipeline).
The disc is not closing fully.
The actuator is not adjusted
properly
See actuator documentaon for proper
adjustment of travel stops on the actuator.
Damaged seat. Replace valve.
Line pressure exceeds valve’s
working pressure.
Reduce the line pressure to the valve’s
working pressure.
Damaged disc. Replace valve.
Water hammer The valve is closing too quickly. Adjust actuator.
Excessively high torque.
Obstrucon in the pipeline. Remove the valve from the pipeline and
remove obstrucon.
Valve stem or disc bent. Replace valve. Check the pipeline for water
hammer or freezing of line material.
Scale build-up on stem or seat. Open and close the valve several mes.
Operate the valve at least once a month.
Check the valve seat for deterioraon.