Keystone Series GRF Resilient Seated Butterfly Valves, Keystone-EN Manuals & Guides

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

Before installation these instructions must be fully read and understood

Intended valve use

The valve is intended to be used only in
applications within the pressure/temperature
limits indicated in the P/T diagram of the product
manual.
When the valve is used in an end-of-line function,
PED Cat-I applications are allowed only. For
other categories, please contact thefactory.

1 STORAGE AND HANDLING

1.1 Storage

When valves are to be stored for some time
(2months or more) before being fitted, storage
should be in the original delivery crates or cases.

IMPORTANT

Before valves are installed or used the following
actions are recommended.

1. Valves/parts have to be inspected and
thoroughly cleaned if required.

2. Elastomer parts need to be greased with
silicone grease if not present anymore.

3. All surfaces in contact with seats have to be
thoroughly cleaned and greased with silicone
grease if stored for more than 5 months.

1.2 Handling

To prevent damage during handling, the valves
should be lifted by using appropriate lifting
equipment. Do not fasten lifting devices around
the valve operating shaft, actuator or through
the valve waterway. The valve should be lifted
with chains or slings which are fastened to rods
or bolts which go through the bolt holes in the
body flanges. The valves should be protected
from external events e.g. (bumps, hitting and
vibration) during transport.
Any flange protection caps need to be removed
before the valve is mounted in the pipeline.
Lift the valve with great care from the transport
package (crate, pallet). While handling or
installing the valve, ensure that no damage
occurs to the valve, the pneumatic/electrical/­hydraulic actuator or other instrumentation.

4.

Misuse of the valve is not allowed. Forexample:
the valve, handles, actuators or other parts may
not be used as ‘climbing tools’.

5.

Ensure that valve pressure/temperature
limitations marked on the identification tag are
within the service conditions. The trim number
on the valve’s nameplate identifies the valve
materials. See Product Manual for valve specific
P/T diagram and trim number definition.

6. Ensure that valve materials are compatible
with the pipeline fluid.

1.1.1 Storage conditions

The valves should be stored off the ground in a
clean, dry indoor area.
Protect the valve from temperature and
humidity extremes, and exposure to excessive
dust, moisture, vibration, deformations,
sunlight and ozone.

Recommendations

1. Temperature: storage temperature below
25°C (77°F), above 0°C (32°F) preferable
below 15°C (59°F).

2. Humidity: storage conditions should be such
that condensation does not occur, store in
a dry environment. Maximum 50% relative
humidity.

3. Light: valve elastomers should be protected
from light, in particular direct sunlight or
strong artificial light with high ultra violet.

4. Ozone: storage rooms should not contain
any equipment generating ozone. E.g.
lamps, electric motors.

www.valves.emerson.com © 2017 Emerson. All rights reserved.

2 SPARE PARTS

Only original Keystone spare parts are
allowed to be used. Safe operation cannot be
guaranteed if third party spare parts are used.

3 INSTALLATION

WARNING!

For safety reasons, it is important to take the
following precautions before you start work on
the valve:

1.

Personnel making any adjustments to the valves
should utilize suitable equipment. Allrequired
personal protection means should be worn.

2. The line must be depressurized before
installing the valve.

3. Installation and handling of valves should be
done only by personnel who are trained in all
aspects of manual and mechanical handling
techniques.

VCIOM-06276-EN 15/03

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

3.1 Visual valve inspection

1. Confirm that the materials of construction
listed on the valve nameplate are
appropriate for the service intended and are
as specified.

2. Tag/name plate identification

Manufacturer: Keystone
Model: Series GRF
Nominal size: DN or NPS
M.P.W.P.: maximum permissible

working pressure
Flange
compatibility: e.g. ASME 125/150 PN 10/16
Temperature: e.g. -28/120°C (-18/250°F)
Trim: Materials of construction

3.2 Flange and pipe compatibility

Check matching of flange drilling pattern of
valve and pipe before assembly.
Flanges have to meet the following
requirements (see Figure 1):

- The face inside diameter should be:
D min.: The valve Q-dimension + adequate

disc clearance.

D max.: The optimum inside diameter (ID)

is equal to the inside diameter of
flange standard EN 1092-1, table 8,
type 11 or ASME B16.5, table 8, Weld
Neck, dimensions B. For larger than
D max inside diameters or other
flange types please contact your local
Emerson Sales organization, as larger
inside diameters might result in
reduced valve functionality.

- If the flange (or pipe) is provided with a
raised face, the diameter of this shall be at
least 8 mm larger than the YY-dimension of
thevalve.

The use of the flange-gaskets is not allowed
since it might damage the valve.
The Keystone seat-face design eliminates the
need for the gaskets.
Use flange bolting in accordance with
appropriate standard.

and 3 to 5 pipe diameters straight outlet piping.
A valve is not a crow-bar. Do not use the valve
to spread the flanges. Seat damage might
result.

NOTES

• The valve can be installed in the pipe-line either
with or without the actuator mounted on top of the
valve. Make sure to turn the disc slowly in the event
there is a mismatch causing the disc to touch the
adjacent piping.

• It is the responsibility of the valve user and not the
valve manufacturer to ensure that the pipeline
system has been built professionally and the valve
has been properly installed.

• Adjacent piping must be positioned so that minimal
piping stresses are transmitted to the valve flanges
during or after installation.

• Handling and lifting of the valves during installation
MUST be performed following the same instructions
described in previous section ‘1.2 Handling’.

IMPORTANT

Mating flange faces should be in good condition
and free of dirt and/or inclusions and pipe insides
should be well cleaned.

YY

D max./min.

FIGURE 1

Q

Do not use flange gaskets, as this could lead
to valve damage!

3.3 Valve installation

The valves are bi-directional and may be installed
in either direction relative to the flow. The valve
will control flow equally in either direction.

For valve sizes DN 600-1000 (NPS 24-40)
therecommended installation position is
shaft horizontal and the lower disc edge
opening down-stream. (Especially for slurry
service and media with a tendency for
sedimentation). Valves can be purchased
with an option for vertical shaft installation.
ValvesDN 1050 (NPS 42) and above must be
installed with the shaft in horizontal position.

For optimum valve control and smooth
performance, it is recommended to have a 10
to 20 pipe diameters of straight run inlet piping

2

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

3.3.1 Existing system (see Figure 2)

1. Check whether the flange distance
meets the valve face-to-face dimensions.
Spreadthe flanges with adequate tooling for
easy insertion of the valve.

2. Close the valve so that the disc edge is at
least 10 mm (⅜”) within the body.

3. Insert the valve between the flanges, center
the valve body and insert all flange bolts.
Tighten the flange-bolts hand tight.

4. Slowly open the valve completely.
(Thediscis in line with parallel flats or
keyway in shaft head. Keyway points towards
discedge).

5. Maintain the valve flange alignment while
gradually removing the flange-spreaders
and tighten the flange-bolts hand tight.

6. Slowly close and open the valve to check for
adequate disc clearance.

7. Cross-tighten all bolting to the proper
torque. Do not over tighten.

3.3.2 New system (see Figure 2)

1. With the disc in the near-closed position,
center each mating flange with the valve
body. Fix the body with some flange-bolts
and tighten the bolts.

2. Use the flange-valve-flange assembly for
fit-up and centering to the pipe.

3. Tack-weld the flanges to the pipe.

4. Remove the bolting and remove the valve
from between the flanges.

EXISTING SYSTEM NEW SYSTEM

1. Spread the flanges with the adequate tooling.
Insert some flange bolts to hold the valve.

2. Open the valve and remove the flange spreads. 2. Tack weld the flanges to the pipes.

1. Center a flange-valve-flange assembly
between the pipes.

IMPORTANT

Do not finish-weld the flanges to the pipe with the
valve bolted between the flanges as this will result
in serious heat-damage to the seat.

5. Finish-weld the flanges to the pipe and
allow the flanges to cool completely.

6. Install the valve now according to the
procedure for installing in existing systems.

3.4 Valve verification

Check the operation of the valve by operating it
to ‘full open’ and ‘full close’. To verify the valve
operation, the disc position indicator on the
actuator or the handle should rotate between
the ‘full open’ and ‘full close’ indicators on
the actuator or throttle plate. For normal
installation the valve disc travels clockwise
toclose.

3. Close the valve clockwise, return to open position
and cross-tighten all bolting.

FIGURE 2

3. Remove the valve and finish weld.
Installthevalve according to the procedure
in the left column.

3

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

3.5 Sources of possible danger

This section contains some examples of
possible foreseen danger sources.

3.5.1 Mechanical

A. When manual operators are used, available

space should be checked in order to avoid
hands being clamped.

B. Mechanical sparks caused on impact of

valve and e.g. tooling, are a potential source
of ignition of surrounding atmosphere.

3.5.2 Electrical

If static charges or stray electrical currents
can initiate explosions, the valve should be
grounded to earth.

3.5.3 Thermal

A. Isolation should be used on valves with

application temperatures > +40°C (+104°F)
and < -20°C (-4°F) to prevent them from
being touched (to avoid burning).

B. If the valve is used in hot gas/fluid

applications that might give exothermic
reactions, precautions must be taken so
that the valve surface cannot lead to danger
for people or the direct environment. In dust
and possible explosion zones, the operation
temperatures and ignition temperatures for
dust should be reviewed.

3.5.4 Operational

Closing a valve too fast may result in water
hammer in the upstream part of the pipeline.
Water hammer results in excessive stresses in
the valve and will cause severe damage.
Water hammer should be avoided in all
circumstances.
Due to differential pressure across the valve
disc, butterfly valves have the tendency to be
closed by the flow. This is called ‘dynamic
torque’. Take care when unlatching the valve
operating mechanism. The valve might be
closed by the dynamic torque created by
theflow.

4 MAINTENANCE

WARNING!

Depressurize and, if necessary in case of
dangerous fluids, drain the line and flush with
appropriate cleaning fluid before starting any
maintenance. Failure to do so may cause serious
personal injury and/or equipment damage.
Before disassembling the valve, ensure the valve
has been decontaminated correctly from any
harmful gasses or liquids and that it is within
asafe temperature range for handling.
Personnel making any adjustments to the valves
should utilize suitable equipment. All required
personal protection means should be worn.
We recommend that personnel should be trained
in all aspects of these instructions before carrying
out handling of any valve.

4.1 Routine maintenance

The Keystone Series GRF butterfly valves
are designed to require a minimum of
maintenance.
Routine maintenance or lubrication is not
required, we recommend periodic (visual)
inspection to ensure satisfactory operation and
sealing to the environment.

4.2 Removing the valve from the pipe system

1. Turn the disc to nearly closed position.
(Thedisc is in line with the keyway in
theshaft).

2. Secure the valve with proper lifting
equipment and loosen all flange bolts and
remove the bolts, which prevent removing
ofthe valve.

3. Spread the flanges with adequate tooling,
and remove the valve.

3.6 TROUBLESHOOTING GUIDE

Symptom Possible cause Resolution

Valve would not rotate 1. Actuator has failed 1. Replace or repair

2. Valve packed with debris 2. Flush or clean valve to remove debris

Valve leaking 1. Valve not fully closed 1. Close valve, check actuator stop settings

2. Debris trapped in valve 2. Cycle and flush (with valve open) to remove
debris

3. Seat is damaged 3. Replace seat

Jerky operation 1. Extreme dry application 1. Put some silicone oil on seat or increase size

of actuator

2. Air supply actuator inadequate 2. Increase air supply pressure and/or volume

4

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

SERIES GRF DN 600 - 1000 (NPS 24 - 40)

Topview

16

3

11

14

13

10

12

15

1

Detail ‘A’

Detail ‘B’

FIGURE 3

PARTS LIST

Item Description Item Description

1 Body 9 Plug O-ring
2 Disc 10 Bushing
3 Shaft 11 Body circlip
4 Seat 12 Shaft circlip
5 Disc screw 13 Body O-ring
6 Disc screw O-ring 14 Shaft O-ring
7 Plug 15 Bearing
8 Plug circlip 16 Parallel key

5

6

2

4

15

9

8

7

Detail ‘A’

Detail ‘B’

5

11

18

10

13

12

15

1

4

2

16

17

3

6

5

8

7

19

6

9

14

15

11

10

7

11

18

10

13

12

15

8

7

19

6

9

14

15

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

DN 1050 - 1800 (NPS 42 - 72)

Topview

Detail ‘A’

16

11
10

3
1
4

17

2

11

18

14

10

13

12

15

Detail ‘A’

FIGURE 4

Detail ‘B’

PARTS LIST

Item Description Item Description

1 Body 11 Bushing cover
2 Disc 12 Shaft circlip
3 Shaft 13 Body O-ring
4 Seat 14 Shaft O-ring
5 Bottom shaft 15 Bearing
6 Through bolt 16 Parallel key
7 Bottom cover 17 Parallel key disc shaft
8 Bottom cover screw 18 Bushing cover screw
9 Bottom cover O-ring 19 Lock nut
10 Bushing

15

6

6

19

5

9

7

7

8

Detail ‘B’

6

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

4.3 Valve disassembly (see Figure 3)
DN600-1000 (NPS 24-40)

1. Turn the disc to almost open position.

2. Remove actuator.

3. Remove the disc screw with the O-ring from
the disc.

4. Remove the circlip from the top of the body.

5. Remove circlip from the bottom body plug
and pull the plug out of the body.

6. Remove the O-ring from the plug.

7. Pull the shaft out of the body.

8. Remove the bushing, shaft seals and circlip
from the top of the shaft.

9. Remove the disc by pulling or ‘rolling’ out of
the seat bore.

10. Remove the seat from the body: pry under
both seat edges at one point, collapse
the seat into the shape of a round bottom
heart configuration and pull the seat out of
thebody bore.

11. Remove bearings from shaft bores.

DN 1050-1800 (NPS 42-72) (see Figure 4)

1. Place valve horizontal on supports.
Turnthedisc to full open position.

2. Dismount the actuation.

3. Remove screws from bushing cover on dive
side. Screws type DIN912 M8, socket 6.
Remove bushing cover.

4. Remove bolts form bottom cover. Boltstype
hexagon head DIN933 M12 SW19.
Removethe bottom cover from body.
Remove O-ring from cover.

5. Remove lock nut from through bolt
(hexagonhead M20 SW30).

6. Pull the drive shaft with the through bolt out
of body. If required use the threaded hole
in shaft to pull. Support the disc and shafts
during removal. Together with the drive shaft
the bushing will be removed from the body.

7. Remove bushing and circlip from shaft.
Remove O-rings from bushing.

8. Remove the bottom shaft. If necessary
theshaft can be pushed out with the help of
abar through the drive shaft hole.

9. Lift the disc out of the seat and body.

10. Pull the lip of the seat out of the groove and
deform the seat to the shape of a heart.
Remove the seat from the body.

11. Remove the bearings from the body.

4.4 Valve assembly (see Figure 3)
DN 600-1000 (NPS 24-40)

1. Clean all parts.

2. Fit bearings into shaft bores (2 bearings are
to be installed close to the bore of the body
and 2 bearings at the outer ends of the shaft
bores).

3. Collapse the seat in the shape of a round
bottom heart firmly place the ‘bottom’
part of the seat into position in the body.
Alignthe holes in the seat properly with
theholes in the body.

4. Fit the shaft circlip to the groove in
theshaft.

5. Insert the shaft with sufficient (silicone)
grease so that it protrudes approximately
10 mm (⅜”) into the inside bore of the seat.
Install the disc, with the disc screw holes
toward the valve top-plate, by inserting
the disc in the seat with the shaft bore on
the topside against the shaft, leaving the
bottom part of the disc just outside the seat.
Pushthe bottom part of the disc in place
with a twisting motion.

6. Insert the shaft completely using a rotating
pressure on the shaft, and a rotating motion
on the disc. Pay special attention in order
that the seat is not damaged due to any
misalignment of shaft holes.

7. Align the counter-drilled position of
theshaft with the disc screw hole.
PlacetheO-ring on the disc screw.
Applythread locking compound around disc
screw thread. Install the disc screw and
tighten securely. (See Table 1 for suggested
tightening torques)

8. Place the O-ring onto the bottom plug.
Place the plug into the body and position it
with a circlip.

9. Place the shaft seals on the inside and
outside of the bushing then fit it over thetop
of the shaft and into the top of the body.
Retain it in place with the circlip body.

10. Mount the actuator.

7

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

TABLE 1 - RECOMMENDED DISC SCREW TIGHTENING TORQUES

Valve size Valve size Tightening torques
DN NPS Nm ft•lbs

600-800 24-32 470 346
900 36 1270 937
1000 40 1650 1216

DN 1050-1800 (NPS 42-72) (see Figure 4)

1. Place valve horizontal on supports.

2. Place bearings in the shaft hole of the body
using an assembly tool aligning the bearing
split perpendicular to the flow direction.
Place splits of the different (2 x 2) bearings
on opposite sides.

3. Tilt the seat into the body. Start at the top
side and work gradually towards left and
right, press the seat in to the groove ending
at the bottom shaft. First the hole for
thedrive shaft needs to be correct in line
with the body. Then line up the bottom shaft
hole by pulling the seat from the middle of
the body.

4. Grease the seat along the disc edge and
theshaft holes.

5. Clean and inspect shafts. Check if all edges
are rounded and/or broken (deburred).
Addcirclip DIN471 to drive shaft.

6. Check disc edge for surface scratches/
damages etc. Grease the disc edge.

7. Lower the disc, using a lift frame or
adequate hoisting tools, in the body with
theheat number of the disc looking from
the drive shaft on the left side of the disc.

8. Align the shaft holes of the disc with the
shaft holes in the body using a precursor.
Than place the bottom shaft, take caution
inserting through the seat

9. Assemble the through bolt in the drive
shaft. Insert the drive shaft in the body.
The marking on the drive shaft should be
in line with the disc edge. And the key way
in the shaft should face up. Take caution
protruding the shaft through the seat.

10. Next press the shaft through the seat and
into the disc. Add the nut to the through
bolt and tighten with appropriate torque.
Tightening torque on nut DIN985 M20 steel

8.8 is 390 Nm (288 ft. lbs).

11. Assemble the O-rings on the bushing using
silicon grease. Place bushing in the body.
Place bushing cover and screws DIN912 M8,
socket 6.

12. Assemble O-ring on bottom cover using
silicon grease. Assemble bottom cover in
body chamber. Bolt bottom cover to body
with bolts DIN933 M12, hexagon head SW19.

13. Remount the actuation.

14. Test the valve.

4.5 Re-installing the valve

See section 3.3.1

8

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

FIGURE 5

A

A

Through holes

(D x per flange)

Blind threaded holes

(E x per flange)

Laying length - D

T

B

B

Through hole dia - ØA

SECTION A-A

Laying length - D

TD max

TD min

Thread size - C

SECTION B-B

TABLE 2 - BOLTING INFORMATION - DN 600-700 (NPS 24-28) continued next pages

D ØA T E C TD max TD min

DN

Flange drilling

(NPS)

standard Rating

600 EN 1092-2 PN10 16 31 41 4 M27x3 34 27
(24) ISO 2084 PN10 16 31 41 4 M27x3 34 27

ASME B16.5 cl.150 16 34.9 41 4 1¼"-8UN 40 32
ASME B16.1 cl.125 16 34.9 41 4 1¼"-8UN 40 32
AWWA C207 table B/D/E 16 34.9 41 4 1¼"-8UN 40 32
MSS SP44 cl.150 16 34.9 41 4 1¼"-8UN 40 32
JIS B2210 10K 20 33 41 4 M30x3.5 38 30
JIS B2210 5K 16 27 41 4 M24x3 30 24
AS2129 D 12 30 41 4 M27x3 34 27
AS4087 PN16 12 30 41 4 M27x3 34 27

AS2129 E 12 33 41 4 M30x3.5 38 30
700 EN 1092-2 PN10 20 31 39.5 4 M27x3 34 27
(28) ISO 2084 PN10 20 31 39.5 4 M27x3 34 27

ASME B16.47A cl.150 24 35 39.5 4 1¼"-8UN 40 32

AWWA C207 table B/D/E 24 35 39.5 4 1¼"-8UN 40 32

MSS SP44 cl.150 24 34.9 39.5 4 1¼"-8UN 40 32

JIS B2210 10K 20 33 39.5 4 M30x3.5 38 30

JIS B2210 5K 20 27 39.5 4 M24x3 30 24

AS2129 D 16 30 39.5 4 M27x3 34 27

AS4087 PN16 16 30 39.5 4 M27x3 34 27

AS2129 E 16 33 39.5 4 M30x3.5 38 30

Total number of

through holes

Through hole

diameter

Flange

thickness

Number of blind

threaded holes

Thread size

blind holes

Thread

depth max

Minimum insert

length bolt

NOTES

1. All dimensions in mm

2. Rows in bold: all holes are threaded holes

9

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

TABLE 2 - BOLTING INFORMATION - DN 750-1000 (NPS 30-40) continued

D ØA T E C TD max TD min

DN

Flange drilling

(NPS)

standard Rating

750 ISO 2084 PN10 20 33 43 4 M30x3.5 38 30
(30) ASME B16.1 cl.125 24 34.9 43 4 1¼"-8UN 40 32

ASME B16.47A cl.150 24 34.9 43 4 1¼"-8UN 40 32
AWWA C207 table B/D/E 24 34.9 43 4 1¼"-8UN 40 32
MSS SP44 cl.150 24 34.9 43 4 1¼-8UN 40 32
JIS B2210 10K 20 33 43 4 M30x3.5 38 30

JIS B2210 5K O 20 M30x3.5 43 4 M30x3.5 38 30

AS2129 D 16 33 43 4 M30x3.5 38 30
AS4087 PN16 16 33 43 4 M30x3.5 38 30

AS2129 E 16 36 43 4 M33x3.5 40 33
800 EN 1092-2 PN10 20 34 43 4 M30x3.5 38 30
(32) ISO 2084 PN10 20 34 43 4 M30x3.5 38 30

ASME B16.47A cl.150 24 41.1 43 4 1½"-8UN 48 38

AWWA C207 table B/D/E 24 41.1 43 4 1½"-8UN 48 38

MSS SP44 cl.150 24 41,1 43 4 1½"-8UN 48 38

ASME B16.47B cl.150 O 44 22.2 43 4 ¾"-8UNC 24 19

JIS B2210 10K 24 33 43 4 M30x3.5 38 30

JIS B2210 5K O 24 33 43 4 M30x3.5 38 30

AS2129 D 16 36 43 4 M33x3.5 40 33

AS4087 PN16 16 36 43 4 M33x3.5 40 33

AS2129 E 16 36 43 4 M33x3.5 40 33
900 EN 1092-2 PN10 24 34 46.5 4 M30x3.5 37.5 30
(36) ISO 2084 PN10 24 34 46.5 4 M30x3.5 37.5 30

ASME B16.1 cl.125 28 41.3 46.5 4 1½-8UN 48 38

ASME B16.47A cl.150 28 41.3 46.5 4 1½-8UN 48 38

AWWA C207 table B/D/E 28 41.3 46.5 4 1½-8UN 48 38

MSS SP44 cl.150 28 41.1 46.5 4 1½-8UN 48 38

ASME B16.47B cl.150 O 40 ⅞"-8UNC 46.5 4 ⅞"-8UNC 28 22

JIS B2210 10K 24 33 46.5 4 M30x3.5 37.5 30

JIS B2210 5K O 20 M30x3.5 46.5 4 M30x3.5 38 30

AS2129 D 20 36 46.5 4 M33x3.5 41.25 33

AS4087 PN16 20 36 46.5 4 M33x3.5 41.25 33

AS2129 E 20 36 46.5 4 M33x3.5 41.25 33
1000 EN 1092-2 PN10 24 37 50 4 M33x3.5 40 33
(40) ISO 2084 PN10 24 37 50 4 M33x3.5 40 33

ASME B16.47A cl.150 32 41.1 50 4 1½"-8UN 48 38

AWWA C207 table B/D/E 32 41.1 50 4 1½"-8UN 48 38

MSS SP44 cl.150 32 41.1 50 4 1½"-8UN 48 38

ASME B16.47B cl.150 O 40 1"-8UN 50 4 1"-8UN 32 25

JIS B2210 10K 24 39 50 4 M36x4 45 36

JIS B2210 5K O 24 M30x3.5 50 4 M30x3.5 38 30

AS2129 D 20 36 50 4 M33x3.5 40 33

AS4087 PN16 20 36 50 4 M33x3.5 40 33

AS2129 E 20 39 50 4 M36x4 45 36

Total number of

through holes

Through hole

diameter

Flange

thickness

Number of blind

threaded holes

Thread size

blind holes

Thread

depth max

Minimum insert

length bolt

NOTES

1. All dimensions in mm

2. Rows in bold: all holes are threaded holes

10

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

TABLE 2 - BOLTING INFORMATION - DN 1050-1500 (NPS 42-60) continued

D ØA T E C TD max TD min

DN

Flange drilling
(NPS)

standard Rating

1050 ASME B16.47A cl.150 36 41.1 42.5 4 1½"-8UN 43 38
(42) ASME B16.1 cl.125 36 41.1 42.5 4 1½"-8UN 43 38

AWWA C207 table B/D/E 36 41.1 42.5 4 1½"-8UN 43 38

MSS SP44 cl.150 36 41.1 42.5 4 1½"-8UN 43 38
1100 EN 1092-2 PN10 32 37 42.5 4 M33x3.5 42.5 33
(44) ISO 2084 PN10 32 37 42.5 4 M33x3.5 42.5 33

ASME B16.47A cl.150 40 41.1 42.5 4 1½"-8UN 42.5 38

AWWA C207 table B/D/E 40 41.1 42.5 4 1½"-8UN 42.5 38

MSS SP44 cl.150 40 41.1 42.5 4 1½"-8UN 42.5 38

ASME B16.47B cl.150 O 52 1"-8UN 42.5 4 1"-8UN 42.5 25

JIS B2210 10K 28 39 42.5 4 M36x4 42.5 36

JIS B2210 5K O 28 M30x3.5 42.5 4 M30x3.5 42.5 30

1200 EN 1092-2 PN10 32 41 45 4 M36x4 45 36
(48) ISO 2084 PN10 32 41 45 4 M36x4 45 36

ASME B16.1 cl.125 44 41.1 45 4 1½"-8UN 45 38

ASME B16.47A cl.150 44 41.1 45 4 1½"-8UN 45 38

AWWA C207 table B/D/E 44 41.1 45 4 1½"-8UN 45 38

MSS SP44 cl.150 44 41.1 45 4 1½"-8UN 45 38

ASME B16.47B cl.150 O 44 1¼"-8UN 45 4 1¼"-8UN 45 32

JIS B2210 10K 32 39 45 4 M36x4 45 36

JIS B2210 5K O 32 M30x3.5 45 4 M30x3.5 45 30

AS2129 D 32 36 45 4 M33x3.5 45 33

AS4087 PN16 32 36 45 4 M33x3.5 45 33

AS2129 E 32 39 45 4 M36x4 45 36
1350 ASME B16.47A cl.150 44 47.6 46 4 1¾"-8UN 46 44
(54) ASME B16.1 cl.125 44 50.8 46 4 1¾"-8UN 46 44

AWWA C207 table B/D/E 44 47.6 46 4 1¾"-8UN 46 44

MSS SP44 cl.150 44 47.6 46 4 1¾"-8UN 46 44

ASME B16.47B cl.150 O 56 1⅛"-8UN 46 4 1⅛"-8UN 46 32

JIS B2210 10K 36 45 46 4 M42x4 46 42

JIS B2210 5K O 32 M30x3.5 46 4 M30x3.5 46 30

1400 EN 1092-2 PN10 36 44 46 4 M39x4 46 39
(56) ISO 2084 PN10 36 44 46 4 M39x4 46 39

ASME B16.47A cl.150 48 47.6 46 4 1¾"-8UN 46 45

MSS SP44 cl.150 48 47.7 46 4 1¾"-8UN 46 45

ASME B16.47B cl.150 O 60 1⅛"-8UN 46 4 1⅛"-8UN 46 32

AS2129 D 36 36 46 4 M33x3.5 46 33

AS4087 PN16 36 36 46 4 M33x3.5 46 33
1500 EN 1092-2 PN10 36 44 47.5 4 M39x4 47 39
(60) ISO 2084 PN10 36 44 47.5 4 M39x4 47 39

ASME B16.1 cl.125 52 50.8 47.5 4 1¾"-8UN 47 45

ASME B16.47A cl.150 52 47.6 47.5 4 1¾"-8UN 47 45

AWWA C207 table B/D/E 52

MSS SP44 cl.150 52 47.6 47.5 4 1¾"-8UN 47 45

ASME B16.47B cl.150 O 52 1½"-8UN 47.5 4 1½"-8UN 47 38

JIS B2210 10K 40 39 47.5 4 M42x4 47 42

JIS B2210 5K O 36 M30x3.5 47.5 4 M30x3.5 47 30

Total number of

through holes

Through hole

diameter

47.6 47.5 4 1¾"-8UN 47 45

Flange

thickness

Number of blind

threaded holes

Thread size

blind holes

Thread

depth max

Minimum insert

length bolt

NOTES

1. All dimensions in mm

2. Rows in bold: all holes are threaded holes

11

KEYSTONE SERIES GRF RESILIENT SEATED BUTTERFLY VALVES

INSTALLATION AND OPERATION MANUAL

TABLE 2 - BOLTING INFORMATION - DN 1600-1800 (NPS 64-72) continued

D ØA T E C TD max TD min

DN

Flange drilling
(NPS)

standard Rating

1600 EN 1092-2 PN10 40 50 49 4 M45x4,5 49 45
(64) ISO 2084 PN10 40 50 49 4 M45x4,5 49 45

AS2129 D 40 39 49 4 M36x4 49 36
1650 AWWA C207 table B/D/E 52 50.8 50 4 1¾"-8UN 50 45
(66)
1800 EN 1092-2 PN10 44 50 52 4 M45x4 52 45
(72) ISO 2084 PN10 44 50 52 4 M45x4 52 45

ASME B16.1 cl.125 60 50.8 52 4 1¾"-8UN 52 45

AWWA C207 table B/D/E 60 50.8 52 4 1¾"-8UN 52 45

AS2129 D 44 50 52 4 M39x4 52 39

AS4087 PN16 44 50 52 4 M39x4 52 39

NOTES

1. All dimensions in mm

2. Rows in bold: all holes are threaded holes

Total number of

through holes

Through hole

diameter

Flange

thickness

Number of blind

threaded holes

Thread size

blind holes

Thread

depth max

Minimum insert

length bolt

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12