MPI TRI-SEAL FIRE-FLEX 1150 Manual

FIRE-FLEX HIGH PERFORMANCE
FIRE-SAFE BUTTERFLY VALVE
OPERATING AND
MAINTENANCE
INSTRUCTIONS
2 1/2 - 24", 1150/2150 and
1151/2151 ANSI Class 150
Table of Contents:
Design Overview ................................................... 2
Installation Instructions ........................................ 2
Valve Operation..................................................... 2
Maintenance.......................................................... 3
Troubleshooting .................................................... 3
Dimensions........................................................... 4
Materials of Construction...................................... 5
Technical Data and Flow Characteristics ............... 7

The Tri-Seal Valve Fire-Flex Series Butterfly valves contain
improvements and refinements not found in any other high
performance butterfly valves. These features serve to insure
a long and trouble-free life as well as provide much simple
and less expensive maintenance when required.
A. DESIGN FEATURES
1. The Fire-Flex features an exclusive resilient and
metallic seating arrangement, under normal operating
temperatures, that assures bubble tight shutoff affected
by the pressure-activated resilient seat. In the event of
a fire, the 304 stainless steel metal seat provides sealing
conforming to API 607 4th edition requirements without
relying on springs, system pressure, or the complete
destruction of the resilient seat. The flexible graphite
packing and gaskets prevent external leakage, avoiding
the possibility of intensifying fire.
2. Body Design – The Fire-Flex valve employs a rugged
one-piece body design with an integrally cast travel stop
and installation guides for flange bolts. These guide holes
have sufficient clearance to allow flexibility for misalignment
of mating flanges.
3. Shaft Design – The Fire-Flex shaft is a double offset
style with one-piece construction design through 16”
size, two-piece construction 18” and larger.
4. Gland Design – The Fire-Flex packing gland is a flexible
graphite design. This design offers excellent sealing
characteristics at the temperature rating of the valve,
as well as the higher temperature that would be seen
in the event of a fire.
5. Disc Design – The Fire-Flex disc is of rugged construction
with a sealing edge that is a segment of a ball. Once the disc
is forced into the seat, a bubble-tight seal is affected. Any
change of position of the disc once it is forced into the seat
will not affect performance. The result being that (within the
width of the edge) an exact stop position is not critical.
B. INSTALLATION
1. The Fire-Flex Series valves are bi-directional, and as
such can be installed for flow in either direction. However,
a preferred flow is indicated.
2. When installing a butterfly valve always be sure that the
new flange gasket of the proper material for the intended
service media are used.
3. When installing flange bolts, always tighten bolts in a
sequential pattern, shown in Fig. 1. Bolts should be
tightened to the appropriate torque, as specified by SAE
for the bolting material used.
FIRE-FLEX HIGH PERFORMANCE BUTTERFLY VALVE
1
NOTE: After bolts have been tightened, it is good practice
to recheck flange bolt torques one-half to one hour after
initial tightening (particularly when stainless steel bolting
is used).
WARNING: As is the case with most valve types available
on the market today, (regardless of manufacturer), valve
stem seals may require periodic adjustment, therefore,
installations that do not allow access to the valve stem
should be avoided.
C. VALVE OPERATION
1. All Tri-Seal Valve Fire-Flex Butterfly Valves feature
¼ turn operation. Turning the valve handle 90 degrees
clockwise will fully close the valve, while 90 degree
counter-clockwise rotation will fully open the valve.
The valve handle also serves as a disc position indicator.
When the valve handle is parallel to the pipe the valve is
open, when perpendicular to the pipe the valve is closed.
To disengage the handle from the locking plate, simply
squeeze the bottom lever of the handle.
2. All Tri-Seal Valve Fire-Flex Butterfly valves are designed
to provide bubble tight performance when properly
selected in accordance with the valve’s pressure/temperature
rating, unless otherwise noted in the seat material
selection chart.
1
3
4
2
Figure 1: Flange bolt tightnening sequence

3. To provide the longest possible service life, a hand-
operated butterfly valve should be operated in either
its fully open or fully closed position. However, a
10 position locking plate is provided if an intermediate
operating position is desired.
4. The torques listed under “Break Away” at the end of this
instruction sheet are the normal expected breakaway
torques. These values represent the maximum force
required to begin to open the valve at specified differential
pressures. Typically, this breakaway torque is the maximum
torque requirement for the valve during a closed-to-open,
open-to-close cycle. Bear in mind that these have been
confirmed by laboratory testing of each valve size while
pressurized with water to its maximum pressure rating
(certain highly viscous or abrasive services could cause
an increase in torque requirements).
D. MAINTENANCE
During its normal service life, the only maintenance that
may be required by your Tri-Seal Valve Fire-Flex butterfly
valve should be periodic stem seal adjustment. If leakage
at the stem is noted, simply tighten the packing plate until
leakage subsides. DO NOT OVER TIGHTEN, AS PREMATURE
WEAR COULD RESULT.
It is impractical to predict frequency of stem adjustment,
as it is influenced by such factors as frequency of cycling
and service media.
IMPORTANT: As is the case with ANY valve on the market
today, it is important that stem leaks do not go unattended.
Lack of maintenance of stem leakage could cause a
premature need to replace stem seals.
NOTE: If operating temperature of system is substantially
higher or lower than 80° F, initial stem seal adjustment may
be required to prevent leakage.
E. DISASSEMBLY
WARNING: Most standard bi-directional High Performance
butterfly valves on the market today, regardless of
manufacturer, can trap fluid in the valve cavity when closed.
If your Tri-Seal Valve Fire-Flex butterfly valve has been used
to conduct a hazardous media, the following steps must be
taken prior to removal from line and disassembled:
1. Relieve line pressure.
2. Place valve in its half-open position and flush the line to
remove the hazardous material from the valve cavity.
The valve can now be removed from the line.
NOTE: Always advise maintenance personnel when they
are maintaining or rebuilding a valve that has been
conducting hazardous material. Proper protective clothing
and eye protection should always be utilized.
3. To disassemble entire valve:
a. Having assured that BOTH line and valve cavity pressures
have been relieved, remove the valve from the line.
b. Place the valve in a vice or other suitable retention tool
that will adequately support the valve while it is being
disassembled.
c. Remove valve handle, gear operator or actuator.
d. To access the seats (PTFE and metal back up) remove
outer seat retainer and inner seat retainer by the appropriate
method listed below, wafer style 2 ½ - 14 only. With the
valve rotated so the shaft side of disc is on the seat retainer
side (past full open), rotate the seat retainer such that the
notches are no longer in the 12 and 6 o’clock positions. Lift
outer seat retainer to remove from valve then lift out inner
seat retainer. Any Grafoil gasket material should be removed.
Lift the backup metal seat out of the body by prying it from
its outside edge or inside lock lip.
e. Remove hex head cap screws, lock washers and
positioning plate from top mounting flange.
f. Remove self-locking gland retainer hex nuts and
gland retainer.
g. Remove jam nuts, shaft retaining plate and outer gland ring.
h. Remove shaft retaining ring (2 ½ ” through 14” only)
stem packing and inner gland ring.
i. Remove hex head cap screws, lock washers, and cap on
the bottom of the valve.
j. Remove key (2 ½ ”- 8”) or pins (10”- 24”) from disc and
shaft assembly.
For key removal: grind off spot welds and punch out key.
For pin removal: All dowel pins have been drilled and tapped
to facilitate their extraction. The thread sizes are as follows:
10”-20” = ¼ - 20, 24” = 3/8-16.
k. Slide shaft from valve body, lift out disc and thrust
washers located at the top and bottom of shaft bore.
l. Care should be taken when replacing the bearings, as
they can be damaged while pressing them out.
F. REASSEMBLY
Having assured that all critical surfaces have been inspected,
cleaned and/or replaced, reassembly can begin.
1. If replacing shaft bearings, carefully press bearings into
the shaft bore of the valve body until bearings are flush with
shoulder inside bore.
FIRE-FLEX HIGH PERFORMANCE BUTTERFLY VALVE
2

2. While holding the thrust washers against the milled spot
faces on the O.D. of the disc, insert the disc into the valve and
align the disc shaft bore with the body bore.
NOTE: Be sure that the disc is orientated such that the “T” on
the keyed disc (8” and smaller) or the dowel pin holes (10” and
larger) are located toward the side opposite of the seat retainer
and near the packing side.
3. Insert the shaft through the shaft bore and disc, ensuring
proper alignment of the key way or pinholes to the same of
the disc.
4. Press the key or dowel pins in place and stake to secure.
NOTE: Key should be tack-welded to insure proper operation.
5. Making sure disc is rotated fully CCW, lay first Grafoil gasket
in seat counter bore, insert metal back up seat into body, making
sure back lock lip is in place. Lay second Grafoil on top of metal
seat. Place inner seat retainer into body. Lay third Grafoil gasket
on top of inner seat retainer. Insert the seat into the seat retainer
ensuring the flat back of the seat is flush with the top edge of
the retainer.
CAUTION: Care must be exercised to assure the seat is not
installed upside down. Install the seat retainer springs, with
seat retainer notches located at the 6 and 12 o’clock positions
insert the retaining springs as follows: insert the straight leg of
the retaining spring into the hole located at the bottom of the
groove on the OD of the retainer to the left of the notch that is
located at 12 o’clock, making sure that other end of the spring is
extending to the right. Then insert the remaining spring into the
hole located to the right of the notch located at 6 o’clock with the
opposite end extending to the left. NOTE: See enclosed drawing
for location of retaining springs.
6. With the valve still in the full CCW position and laying flat
on a safe working surface, place the seat retainer, seat and seat
retainer springs into the valve body, such that the seat retainer is
locked into place. Rotate disc to the fully closed position. On lug
valves the seat retainer screw should not be tightened until the
disc is in the closed position.
7. To secure the seat retainer to the valve body use the
following procedure:
WAFER (2 ½ ”-14”) ONLY – With one side of the seat retainer
pressed into the valve body, depress seat retainer seat retaining
spring and push the seat retainer down so that it is flush to .010
above the body. Rotate seat retainer until the notches are in the
6 and 12 o’clock positions locking the retaining springs in place.
LUG (and Wafer 16”-24”) – Install and tighten socket head cap
screws insuring the retainer is bottomed in body.
8. Install inner gland ring into shaft bore. Install flexible graphite
stem packing.
9. Install shaft-retaining ring into groove on shaft. Slide outer
gland ring onto the shaft and place nameplate and shaft retaining
plate onto gland retaining studs. Secure with jam nuts.
10. Install gland retainer plate and secure finger tight with
self-locking retainer nuts. Tighten as required when installed
into service.
11. Install end cap with Grafoil seal onto bottom of the valve and
secure with lock washer and hex head cap screws.
12. Place positioning plate onto mounting flange and secure
finger tight with lock washers and hex head cap screws. NOTE:
The overhang of the plate should be behind and to the right of
the seat retainer while looking at the retainer side of the valve.
13. With the valve in an approximate closed position, slide the
handle onto the shaft so that the bottom tang of the handle
engages the positioning plate. Secure handle to shaft by tight-
ening hex head cap screw on handle. Rotate the valve to its fully
closed position if the handle is not locked into the last notch of
the positing plate.
G. COMMON PROBLEMS encountered with high performance
butterfly valves (with associated corrective action options):
1. Shaft Leakage:
a. Tighten gland retainer nuts (careful not to over tighten –
just enough so leakage stops.)
b. Replace gland packing.
2. Leakage between Flange and Valve:
a. Tighten flange bolts.
b. Replace flange gasket.
3. Leakage through Valve Seat:
a. Clean seat and retainer groove. Replace seat.
b. Reposition seat on disc if evidence of minor damage is visible.
c. Replace disc and shaft assembly.
4. Excessive Torque:
a. Check alignment of valve actuator and adjust if side
loading is evident.
b. Replace bearings if slight galling has occurred on shaft.
c. Replace bearing and shaft if galling is excessive.
TRI-SEAL QUARTER-FLEX BUTTERFLY VALVE
3

TRI-SEAL QUARTER-FLEX BUTTERFLY VALVE
4
MATERIALS OF CONSTRUCTION - ANSI CLASS 150
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20 10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia. C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
S
S
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H
˚
H
˚
L- Dia. L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2 -8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20 10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia. C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
SS
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H
˚
H
˚
L- Dia. L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2- 8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20 10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia. C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
SS
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H
˚
H
˚
L- Dia. L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2- 8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20 10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia. C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
SS
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H
˚
H
˚
L- Dia. L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2- 8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20 10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia. C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
SS
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H˚
H˚
L- Dia.
L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2 - 8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20 10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia. C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
S
S
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H
˚
H
˚
L- Dia. L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2 -8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20
10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia.
C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
SS
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H˚
H˚
L- Dia.
L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2 - 8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75
Dimensions (inches) - ANSI Class 150
Wafer Style
Seat Detail
Stem Detail
Keyed Stem
10"-24" Cl. 150
8"-12" Cl. 300
Flatted Stem
2
1
/ 2 "- 8" Cl. 150
3"- 6" Cl. 300
Lug Style
Seat Detail
20
10
27
13
12
13
14
3
2
1
12
4
9
6
8
8
7
6
14
22
21
20
24
22
21
19
18
17
16
19
18
17
16
5
A- Dia.
C
B
G
Dia.
D
E
T
V-
Dia.
Thru
N
Flats
U
Y
V- Dia.
Thru
U
R
Y
X
TX
P
SS
J 1 - Dia. Thru
W- Qty.
K- Dia.
J- Dia.
(2) Thru Holes
See Stem Detail
See Seat Detail
K- Dia.
H˚ H˚
L- Dia. L- Dia.
F
D 1
E
F
A 1 - Dia.
Lug Style Wafer Style
Size
Dimension (in.) - ANSI Class 150
A A1 B C D D1 E F G H J J1 K L N P R S T U V W X Y
2.5
4.69 6.75 1.06 1.88 3.00 3.00 4.75 1.00 2.19 45.00 .69
5
/ 8 -11 5.50 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
3
5.19 7.25 1.06 1.88 3.25 3.31 5.13 1.00 2.81 45.00 .69
5
/ 8 -11 6.00 .56 .38 — — 1.078 1.50 3.25 .344 4 .75 1.63
4
6.50 8.88 1.06 2.13 3.94 4.94 6.25 1.00 3.88 22.50 .69
5
/ 8 -11 7.50 .63 .50 — — 1.078 2.00 3.50 .406 8 1.00 1.75
5
7.56 10.00 1.25 2.25 4.56 5.44 7.06 1.00 4.75 22.50 .81
3
/ 4 -10 9.00 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
6
8.63 11.00 1.25 2.25 5.00 5.88 7.63 1.00 5.75 22.50 .81
3
/ 4 -10 9.50 .88 .63 — — 1.078 2.00 3.50 .406 8 1.00 1.75
8
10.81 13.50 1.44 2.50 6.19 7.00 9.63 1.75 7.63 22.50 .81
3
/ 4 -10 11.75 1.13 .88 — — 1.828 2.56 4.00 .563 8 1.28 2.00
10
12.88 16.00 1.63 2.81 7.25 8.44 10.22 2.94 9.69 15.00 .94
7
/ 8 -9 14.25 1.13 — .25 .984 2.25 3.25 4.75 .563 12 1.63 2.38
12
15.25 19.00 1.75 3.19 8.75 10.00 11.94 3.00 11.69 15.00 .94
7
/ 8 -9 17.00 1.25 — .38 1.033 2.25 3.50 5.00 .688 12 1.75 2.50
14
16.75 21.00 1.88 3.63 9.88 10.88 13.19 3.00 12.81 15.00 1.06 1-8 18.75 1.38 — .38 1.156 2.25 4.75 5.63 .688 12 2.38 2.81
16
19.88 23.50 2.19 4.00 11.28 12.59 14.34 4.56 14.78 11.25 1.13 1-8 21.25 1.50 — .38 1.28 3.63 5.13 7.00 .688 16 2.56 3.50
18
21.00 25.00 2.47 4.50 13.38 13.38 16.44 4.81 16.75 11.25 1
1
/ 8 -8 1
1
/ 8 -8 22.75 1.75 — .50 1.47 4.00 5.50 8.00 .813 16 2.75 4.00
20
23.00 27.50 2.47 5.00 14.81 14.81 18.00 4.81 18.72 9 1
1
/ 8 -8 1
1
/ 8 -8 25.00 1.75 — .50 1.47 4.00 5.50 8.00 .813 20 2.75 4.00
24
27.75 32.00 3.03 6.06 16.63 16.63 20.25 4.44 22.63 9 1
1
/ 8 -8 1
1
/ 8 -8 29.50 2.75 — .75 2.38 4.00 9.00 11.00 .813 20 4.50 5.50
30
34 38.75 4.25 8.50 29.88 29.88 33.13 10.31 28 6.25 1
1
/ 4 -8 1
1
/ 4 -8 36.00 2.992 — .75 2.562 4.50 6.38 6.38
3
/ 4 -10 28 3 3
36 39.25 47.25 4.19 8.38 27.38 27.38 37.00 11.00 34.0 5.63 1
1
/ 2 -8 1
1
/ 2 - 8 4.75 3.999 — 1.0 3.437 4.50 6.50 9.50 1-8 32 3.25 4.75

MATERIALS OF CONSTRUCTION
Materials Carbon Steel Stainless Steel
Part Name 1150 / 1151 / 1300 / 1301 2150 / 2151 / 2300 / 2301
1Outer Gland Ring 300 Series Stainless Steel
2Shaft Ret. Plate 300 Series Stainless Steel
3Shaft Ret. Ring 300 Series Stainless Steel
4Packing Flexible Graphite
5Inner Gland Ring 316 Stainless Steel
6Bearing Bronze or Microlube Coated Stainless Steel
7Thrust Washer 316 Stainless Steel
8Key/Pin Key 316 or 17-4 Stainless Steel / PIN 316 Stainless Steel
9Shaft/Disc Assembly 2 1/2” -10” (316 Stainless Steel Shaft / CF8M Disc) 12”- 36” (17.4 Shaft / CF8M Disc)
10 Body ASTM A216 Grade WCB ASTM A351 Grade CF8M
12 Seat Retainer ASTM A515 or 516 GR 70 ASTM A240 GR 316 SS
12A Inner Seat Retainer ASTM A515 or 516 GR 70 ASTM A240 GR 316 SS
13 Seat PTFE/RPTFE
13A Backup Seat 304 SS Plated w/Grafoil Gaskets
14 Retaining Spring Inconel X750
16 Stud 18-8 Stainless Steel
17 Self Locking Nut 18-8 Nyloc Stainless Steel
18 Gland Retainer 300 Series Stainless Steel
19 Jam Nut 18-8 Stainless Steel
20 End Cap 316 Stainless Steel
21 Hex Head Cap Screw 18-8 Stainless Steel
22 Split Lockwasher 18-8 Stainless Steel
23 Name Plate 300 Series Stainless Steel
24 Sockethead Cap Screw 18-8 Stainless Steel
27 End Cap Seal Grafoil
Note: Listed are standard materials of construction. Optional Materials may be substituted. Please consult the How to Order guide for various
trims. Teflon®& Viton®are registered trademarks of DuPont Dow Elastomers.
TRI-SEAL QUARTER-FLEX BUTTERFLY VALVE
5

TRI-SEAL QUARTER-FLEX BUTTERFLY VALVE
6
0
100
200
300
285
400
500
600
700
740
100
Temperature-˚F
ANSI Class 150 and 300
Differential Pressure-PSI
200 300 400 500
ANSI
Class 300
ANSI
Class 150
Saturated
Steam Curve
UHMWP
PTFE
RPTFE
PTFE
RPTFE
Valve
Size (in.)
2½
3
4
5
6
8
10
12
14
16
18
20
24
30
36
Class 150
90
205
403
640
1075
2243
3885
5925
7307
10,050
13,075
18,050
26,863
Consult
Factory
Class 300
—
205
403
—
1075
1950
3100
4400
—
—
—
—
—
—
—
Cv Flow Coefficient
0
10
20
0
30
40
50
60
70
80
100
90
20
Percent of Disc Opening
Degree of Disc Opening
Percent of Maximum Cv
40 60 80 100
0 3015 45 60 75 90
Technical Charts and Data
Valve
Size (in.)
CV Flow Coefficient
Class 150 Class 300
2 ½ 90
3205 205
4403 403
5640
61075 1075
82243 1950
10 3885 3100
12 5925 4400
14 7307
16 10,050
18 13,075
20 18,050
24 26,863
30 Consult
Factory
36
Technical Charts and Data
Flow Characteristics CurveFlow Coefficients (Cv)Pressure Temperature Chart
NOTE: Maximum continuous operating temperature.
Consult factory for application above those shown.
NOTE: Flow coefficients (Cv) based
on ambient water temperature
0
100
200
300
285
400
500
600
700
740
100
Temperature-˚F
ANSI Class 150 and 300
Differential Pressure-PSI
200 300 400 500
ANSI
Class 300
ANSI
Class 150
Saturated
Steam Curve
UHMWP
PTFE
RPTFE
PTFE
RPTFE
Valve
Size (in.)
2½
3
4
5
6
8
10
12
14
16
18
20
24
30
36
Class 150
90
205
403
640
1075
2243
3885
5925
7307
10,050
13,075
18,050
26,863
Consult
Factory
Class 300
—
205
403
—
1075
1950
3100
4400
—
—
—
—
—
—
—
Cv Flow Coefficient
0
10
20
0
30
40
50
60
70
80
100
90
20
Percent of Disc Opening
Degree of Disc Opening
Percent of Maximum Cv
40 60 80 100
0 3015 45 60 75 90
Technical Charts and Data
TECHNICAL DATA
Pressure Rating at 100°F
Class 150: 285 PSIG (A216 Gr. WCB)
275 PSIG (A351 Gr. CF8M)
Class 300: 740 PSIG (A216 Gr. WCB)
720 PSIG (A351 Gr. CF8M)
Minimum Operating Temperature
-35°F
Valve Operating and Rating Information
Maximum Temperature for Seats
and Seals at 0 PSIG
PTFE 425°F
Reinforce PTFE 450°F
UHMWPE 180°F
Steam Rating (Saturated)
PTFE 70 WSP
RPTFE 150 WSP
(On/off service only. For throttling
application, consult factory.)

TECHNICAL DATA
Torque - ANSI Class 150
Operating Torque
Torque - ANSI Class 300
Firesafe Operating Torque (in-lbs.)
PSIG 100 200 285 400 600 740
Size (in.) 150# 300# 150# 300# 150# 300# 300# 300# 300#
2 1/2 420 470 500
3500 500 610 610 720 720 750 775 8250
4900 900 1100 1100 1300 1300 1400 1500 1700
5
61600 1600 2400 2400 3000 3000 3200 3400 3500
82300 2900 3500
10 3700 4400 4600
12 7000 9100 9900
14 9000 12000 13000
16 14000 18000 24000
18 18000 29000 34000
20 22000 36000 44000
24 27000 48000 60000
30 29000 39000 49000
36 48000 69000 82000
NOTE: All torques based on clean service without safety factor
NOTE: Torques based on clean service only. Certain highly
viscous or abrasive services could increase these values.
NOTE: Torques based on clean service only. Certain highly
viscous or abrasive services could increase these values.
100,000
8
7
6
5
4
3
2
10,000 9
8
7
6
5
4
3
2
1,000 9
8
7
6
5
4
3
2
BREAKAWAY TORQUE (IN./LBS.)
100,000
8
7
6
5
4
3
2
10,000 9
8
7
6
5
4
3
2
1,000 9
8
7
6
5
4
3
2
BREAKAWAY TORQUE (IN./LBS.)
PRESSURE (BARS) PRESSURE (BARS)
DIFFERENTIALPRESSURE (PSIG) DIFFERENTIALPRESSURE (PSIG)
Note: Torques based on clean
service only. Certain highly
viscous or abrasive services
could increase these values.
Note: Torques based on clean
service only. Certain highly
viscous or abrasive services
could increase these values.
10 20 10 20 30 40 50
0 100 200 300 0 100 200 300 400 500 600 720
24”
20“
18”
16“
14”
12”
12”
10”
8”
6”
4”
3”
10”
8”
6”
5“
4”
3”
2 1/2”
VALVE
SIZE
MPI – MCWANE PLANT & INDUSTRIAL
1201 Vanderbilt Road Birmingham, AL 35234 866.924.8674 www.mcwanepi.com [email protected]
Kennedy Valve | Tyler Union | McWane Ductile | Waterman | Tri-Seal Valve
MPIK-4008-1 11/2021