Metso Neles PZ Series Operating and maintenance manual

8 PZ 70 en • 12/2008
CAPPING VALVE
Series PZ
Installation, Maintenance and
Operating Instructions

28 PZ 70 en
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about safe handling and operation of the valve.
If you require additional assistance, please contact the manufacturer or manufacturer's representative.
Addresses and phone numbers are printed on the back cover.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
Table of Contents
1 GENERAL........................................................ 3
1.1 Scope of the manual..............................3
1.2 Valve construction..................................3
1.3 Valve markings.......................................3
1.4 Specifications.........................................3
1.5 Valve performance.................................3
1.6 Valve approval .......................................4
1.7 Recycling and disposal ..........................4
1.8 Safety precautions .................................4
2 TRANSPORTATION, RECEPTION AND
STORAGE........................................................ 5
3 INSTALLATION AND COMMISSIONING ....... 5
3.1 General ..................................................5
3.2 Mounting the valve on the digester........5
3.3 The actuator...........................................5
3.4 Commissioning.......................................5
4 MAINTENANCE............................................... 6
4.1 General ..................................................6
4.2 Changing the gland packing...................6
4.3 Bearings.................................................6
4.4 Body joint ...............................................6
4.5 Ball and seating......................................6
4.6 Dismantling the valve.............................6
4.7 Valve assembly......................................7
5 INSTALLING THE ACTUATOR ..................... 9
5.1 Adjusting open and closed position....... 9
6 REQUIRED TOOLS ....................................... 10
7 ORDERING SPARE PARTS ......................... 10
8 EXPLODED VIEW AND PARTS LIST........... 11
9 REAR TILTING DEVICE................................ 12
10 SAFETY LOCKING........................................ 13
11 DIMENSIONS................................................. 14
12 TYPE CODE................................................... 15

8 PZ 70 en 3
1 GENERAL
1.1 Scope of the manual
This manual provides the essential information needed
by users of PZ capping valves. If you require further
information on actuators and instrumentation, see the
separate installation, maintenance and operation
instructions for the various models.
1.2 Valve construction
The PZ is a capping valve designed for use in batch
digesters. The valve is fitted to the digester from the
lower body flange.
The upper body half has a metal seat into which the
ball is pressed by a mechanical tilting device when the
digester is not pressurized. The tilting device is pre-
tightened during installation, and no adjustments are
required during operation. The pressure of the digester
further tightens the seal provided by the tilting device.
The mounting holes for the chip feeding chute are in the
top flange plane of the valve.
The ball and stem are integrally cast. The hard-
chromed ball surface ensures low friction and high cor-
rosion resistance. The full-bore ball and the flow port’s
liner insert allow smooth passage of the chips.
Optionally there are electrical or mechanical interlock-
ing devices available.
The electrical interlocking device consists of pressure
transmitters (2 pcs.), relays, solenoid valves and limit
switches.
The mechanical interlocking device is based on a
spring-return cylinder which operates a lever inside the
actuator. This lever locks the valve in the closed position.
These devices prevent the valve from opening while the
digester is pressurized.
1.3 Valve markings
The valve has an identification plate (Fig. 2). The upper
body half is marked with the pressure rating, nominal
size, batch number, body material and manufacturer’s
code.
Identification plate markings are:
1. Body material
2. Ball material
3. Stem material
4. Seat material
5. Maximum operating temperature
6. Minimum operating temperature
7. Maximum shut-off pressure differential/temperature
8. Type designation
9. Valve manufacturing parts list no.
10. Pressure class
1.4 Specifications
Product type: Full-bore ball valve
Ball and stem integrally cast
Split-body design
Metal-seated
Custom-fit lower flange
Body pressure class: PN 16 and ANSI 150
Size range: DN 500, 600 (750) /20", 24" (30")
Temperature range: ...+200 °C (390 °F)
Flanges: To order
Standard materials:
Body halves: ASTM A 351 gr. CF8M
Ball: ASTM A 351 gr. CF8M +
hard-chrome
Bearings: Hard-chromed PTFE +
UNS S21800
Seat: AISI 316 + cobalt based alloy
1.5 Valve performance
Actuators are factory set for proper opening times.
1.5.1 Operation time
During start-up or other exceptional circumstances,
capping valves must meet extreme conditions where
pressure, impurities and high operational velocities can
cause material damages (ball / seat ring). Therefore PZ
capping valves have a recommended minimum opera-
tion time for 90° rotation as listed:
Fig. 1 PZ valve with B1C/BC actuator
Fig. 2
Valve size Minimum operation
time 90° full stroke
Adjusted operating
time with 6 bar
supply pressure,
B1C actuator
PZ 500 (20”) 8 seconds 10 seconds
PZ 600 (24”) 10 seconds 12 seconds
PZ 750 (30”) 12 seconds 15 seconds

48 PZ 70 en
Adjusted operating times are factory preset values,
obtained with restrictor valves installed in actuator air sup-
ply lines between solenoid valve and actuator cylinder.
1.5.2 Vacuum during cooking
In modern cooking processes there can be sequences
where digester vessel operates below atmospheric
pressure ie. in vacuum conditions.
In such cases it is recommended not to exceed 30 kPa
(0.3 bar) vacuum with PZ capping valve.
If higher values are expected, please contact the man-
ufacturer. See also Section 1.5.5.
1.5.3 Valve tightness
All PZ capping valves are factory tested to fulfill
ISO 5208 rate D leakage test.
Corresponding leakage values, tested with water
1.1 x nominal pressure.
1.5.4 Additional arrangements
During normal sequences of cooking the PZ-series
locked scraping metal seat keeps the hard chrome
plated ball surface clean ensuring long lasting tightness
and smooth operation. However, in practice, it is difficult
to totally prevent chips, sawdust, dirt or any other con-
taminants from adhering to the ball surface, particulary
during the cooking sequence (temp about 175 °C /
347 °F), causing possible ball surface damages.
Metso realizes that some mills may require a water
wash/spray to the ball surface and others may require a
water bed. Information on these additional services
may be found in bulletin 2611/01/05 or contact your
nearest Metso’s Automation business office.
1.5.5 Rear tilting device
The support (38) can be replaced with a rear tilting
device which locks the ball against the seat during
cooking. The device must be unlocked when operating.
See Sections 9 and 10.
Operation:
1. The valve is open during filling. The pressure on top
the piston keeps the lock open (the supply pressure
is lead to part 74.
2. The valve is closed for cooking. The pressure under-
neath the piston locks up the rear stem (the supply
pressure is lead to part 72.
3. During cooking the lock pushes the ball against the
seat. This prevents impacts of the vacuum to the ball
and improves the tightness in the beginning of cooking.
4. Before opening of the valve the pressure should be
lead on top the piston to open the lock. If the locking is
on when opening the valve, the seating surfaces of the
ball and seat will be damaged.
Max. supply air pressure pressure to the locking cylin-
der is 6 bar.
1.6 Valve approval
The design of the valve meets the standards and crite-
ria set by ANSI and ASME.
DIN 50049 3.1B material certificates are available for
body halves, ball and bonnet. A tightness test certifi-
cate is also supplied.
1.7 Recycling and disposal
Most valve parts can be recycled if sorted according to
material. Most parts have material marking. A material
list is supplied with the valve. In addition, separate
recycling and disposal instructions are available from
the manufacturer. A valve can also be returned to the
manufacturer for recycling and disposal against a fee.
1.8 Safety precautions
Fig. 3 Speed control
DN NPS ml/min, water
500 20 3.0
600 24 3.6
750 30 4.5
CAUTION:
Do not exceed the permitted values!
Exceeding the permitted values marked on the valve
may cause damage and result in uncontrolled pres-
sure release.
Damage to equipment or personal injury may result.
CAUTION:
Do not remove or dismantle a pressurized valve!
Removing or dismantling a pressurized valve leads to
uncontrolled pressure release. Always release pres-
sure and remove the media from the valve before
removing or dismantling it.
Protect yourself and the environment from poisonous
or otherwise harmful substances.
Otherwise, personal injury or damage to equipment
may result.
CAUTION:
Beware of the cutting movement of the ball!
Keep hands, other body parts, tools and other objects
away from the open flow port. When the valve is in
operation, the ball functions like a cutter. Shut off the
actuator pressure supply and detach the supply pipes
for the duration of maintenance.
Otherwise, personal injury or damage to equipment
may result.

8 PZ 70 en 5
2 TRANSPORTATION, RECEPTION
AND STORAGE
Check the valve and accompanying devices for any
damage that may have occurred during transport.
Store the valve carefully prior to installation, preferably
indoors in a dry place. Do not take the valve to the
installation site or remove the flow port protectors until it
is installed.
The valve is delivered in the open position mounted on
transportation supports.
3 INSTALLATION AND
COMMISSIONING
3.1 General
Remove the flow port protectors and check that the
valve is clean inside and not damaged. Do not remove
the transportation supports and flow port protection
tape until shortly prior to mounting the valve on the
digester.
3.2 Mounting the valve on the digester
Lift the valve by the lifting eye bolts, see Fig. 5.
The valve is delivered with the ball in the open position.
After any test-runs, make sure that the valve remains in
the open position to protect the ball surface.
To check whether an installed valve is in the open posi-
tion, ensure that
❑the arrow on the actuator pointer cover,
❑the groove at the end of the ball stem,
❑the stem key slot,
are all parallel to the ball flow port.
We recommend that the chip chute be provided with a
manhole approximately 300-500 mm above the valve.
3.3 The actuator
The actuator equipped with a jammer interlock is cus-
tom installed at the factory.
The valve should be installed in a position enabling the
actuator to be removed without detaching the valve
from the digester.
The recommended installation position is with the cylin-
der upright.
The actuator must not touch the digester structure;
vibration may damage it or interfere with its operation.
3.4 Commissioning
Make sure there is no foreign matter in the chip chute. If
the valve leaks check adjusting of the tilting device as
described in Section 4.7.2 Assembly. If the valve still
leaks something has been damaged in shipment or
installation and the factory should be contacted.
After long storage, the gland packing (28) may leak.
Tighten it before the valve is brought into use.
CAUTION:
Do not open the valve during cooking!
Valve control must be arranged to ensure that the
valve cannot be opened during cooking. Otherwise,
personal injury or damage to equipment may result.
CAUTION:
Beware of hot valve!
The valve body may be very hot during use.
Protect yourself against burns.
CAUTION:
When handling the valve or the valve package,
bear in mind its weight!
Never lift the valve or valve package by the actuator,
positioner, limit switch or their piping.
Always fasten the lifting ropes to the lifting eye bolts, see
Fig. 5. Weights are detailed in the table on page 12.
Dropping the valve may result in personal injury or
damage to equipment.
Fig. 4 Transport supports and protection tape
Soft material between
body and support beam
Soft material between
body and support beam
32
41
Paper masking tape
CAUTION:
When handling the valve or the valve package,
bear in mind its weight!
Fig. 5 Lifting the valve
NOTE:
When installing the actuator, make sure that the valve/
actuator package functions properly. Detailed infor-
mation on actuator installation is given in the separate
actuator instructions.

68 PZ 70 en
4 MAINTENANCE
4.1 General
The valve does not require regular maintenance. It is
recommended, however, that the seal of the gland
packing and the settings of the actuator be checked
regularly.
In addition the condition of the ball surface should be
checked every 3 months. In case of leakage, see Sec-
tion 4.5.
The numbers in parentheses refer to the exploded view
in Chapter 8.
4.2 Changing the gland packing
If a leak in the gland packing cannot be eliminated by
tightening it, the packing must be replaced. The actua-
tor can be removed to facilitate this work.
❑Remove caps (53).
❑Loosen the tilting device nuts (18).
❑Remove nuts (17) and gland (6).
❑Remove ring (34) and old gland packings (28).
The lowest ring (34) need not be removed. Use a
suitable pointed instrument for removing the gland
packings. Do not damage the seating surface.
❑Clean the packing counterbore.
❑Push the new packing rings (28) one by one into
the counterbore with the gland. Position the cut
ends of the rings at a 90° angle to each other
and at a 45° angle to the flow port.
❑Push the outer ring (34) and gland (6) into place
and tighten the nuts (17) lightly.
❑Fasten tight the tilting device nuts (18) and then
the nuts (17).
❑Always check the seal of the gland packings
after installation.
4.3 Bearings
The ball stem bearing is located in the bonnet under
the gland packing (8). The bearing is maintenance free.
It is recommended to be dismantled only when the
whole valve is dismantled.
The purpose of the bearing at the rear end of the ball,
i.e. the support (38), is to keep the ball at the valve
center line during operation, allowing a free up-and-
down movement. Normally, the support does not need
to be inspected or replaced.
4.4 Body joint
If the body joint leaks, tighten nuts (16) as shown in
Table 1.
If the leak continues after the tightening, the valve must
be dismantled. Inspect the seating surface and ensure
that the body joint plane is level. Then replace the body
gasket (26). See Section 4.7.2.
4.5 Ball and seating
If the valve leaks, the probable cause is chips between
the ball and the seat. Before adjusting lifting springs (20),
wash and pool the ball surface with a water jet when valve
partly open. Operate the valve 2-3 times and retest.
If washing does not help, the valve must be dismantled
and cleaned.
If the ball surface is damaged for some reason and
causes leakage, the ball can be turned 180° provided that
the ball seat is not damaged. A damaged ball seat will
destroy the ball surface in a short time. The valve must be
dismantled for inspection before turning the ball.
4.6 Dismantling the valve
It is best to dismantle the valve for servicing when it is
detached from the digester. The lower body half can
alternatively be left mounted on the digester. Use the
loops delivered with the valve for lifting.
Dismantle the valve on a clean, level cardboard or
wooden underlay.
❑Lower the valve onto the underlay if you have
removed the whole valve from the digester.
❑Turn the ball to the closed position.
❑Detach the actuator using the extractor, see
Chapter 7.
❑Dismantle the upper body half (1).
❑Fasten the lifting strap through the ball and keep
it adequately tightened.
❑Remove caps (53) and the tilting device nuts
(18), disc springs (20) and screws (13).
❑Detach the actuator console (7).
❑Remove the bonnet with gland packings (28) and
bearings (5, 22).
❑Remove the support (38) with extractor.
❑Lift the ball out of the body; take care not to dam-
age the seating surfaces or the stem.
❑Clean all dismantled parts carefully and replace
worn or damaged parts as necessary.
4.6.1 The ball
After lifting the ball from the body, place it on a clean,
soft surface for cleaning. Take special care to clean the
ball seating surfaces and the gland packing area.
Grind any minor scratches on the ball and packing with
28/20 µm grinding paste and finish with 7/5 µm paste.
Scratches and burrs in the stem can be ground with
fine abrasive cloth of grade 400. If there are deeper
scratches in the ball or it is misshapen, send it to the
manufacturer for repair.
CAUTION:
Ensure that the valve is not pressurized while the
gland packing is changed!
NOTE:
Lifting springs are factory preset and excessive tigh-
tening might damage the ball surface. See Section
4.7.2, Table 2.
CAUTION:
Do not dismantle or remove the valve when it is
pressurized!

8 PZ 70 en 7
4.6.2 Ball seat
The seat (4) is locked in its groove. If the seat is in order
and there is no reason to suspect the condition of the
seal (25), the seat need not be dismantled for servicing.
Remove the seat as follows:
❑First grind down the locking points with a grinder,
see Fig. 6.
❑Open the locking points with a sharp chisel to
facilitate removal, see Fig. 7.
❑Make sure that the seat slides freely in the
groove.
❑Turn the body half upside down and knock it
lightly near the seating edge to make the seat
drop out of the groove on the underlay.
4.6.3 The body
Clean the body halves carefully and check all seating
surfaces.
The body gasket (26) must be replaced each time the
valve is dismantled.
4.7 Valve assembly
4.7.1 Ball seat
To replace the back seal (25) of the seat (4), proceed
as follows:
Cut the ends of the seal band to give a tight seal
against the edges of the groove where the two ends
overlap, see Fig. 8.
Place the seat into the upper body half and lock it at the
four points at 90° intervals, see Fig. 9.
Do not lock the seat too tight; it must be allowed to slide
in the groove.
4.7.2 Assembly
❑Place e.g. corrugated cardboard in the body to
protect the ball during the lifting. Fasten the lift-
ing straps through the flow port.
❑Lift the ball into the lower body half with the stem
first through the bonnet opening. Center the ball
in the flow port. Leave the ball suspended by the
lifting straps.
❑Mount the new support gasket (39) and the sup-
port (38).
❑Push the bearing (5) over the stem to match the
locking notches with the locking ring stops at the
butt of the ball stem.
❑Slip the bearing (22) along the stem. The bearing
lock notch must match with the locking groove on
the bonnet (8).
❑Mount the bonnet (8) and the new bonnet gasket (9).
❑Push the ring (34) and the new gland packings (28)
one by one into the packing groove with the gland.
Position the cut ends of the rings at a 90° angle to
each other and at a 45° angle to the flow port.
❑Set the outer ring (34) and the gland (6) into
place and tighten the nuts (17) lightly.
Fig. 6 Grinding the seat locking
Fig. 7 Opening the seat locking
Fig. 8 Mounting the back seal
Fig. 9 Locking the seat
Locking shoulder
Back seal (25)

88 PZ 70 en
❑Set the body gasket (26) in place. The gasket must
be replaced each time the valve is dismantled.
❑Install the tilting device. Replace the bearings
(24 and 23) and ring (41) of the console (7). Slide
the ring (41) onto the stem.
❑Turn the screws (13) into the valve lugs. Tighten
the disc spring packs (20) with nuts (18).
❑Loosen the ball from the lifting straps and remove
the straps.
❑Make sure that the ball is in the center of the flow
port by measuring the distances from the ball
surface to the groove of the body joint plane.
❑Lift the upper body half into place in the original
position. See that a gap of about 5 mm (0.2") is
left in the body joint when the body half is resting
on the ball.
❑Tighten the body joint nuts (16) as shown in
Table 1.
❑Mount the actuator, see Chapter 5.
❑Measure the distance "B", See Fig. 10.
❑Feed compressed air into the actuator via the
pressure regulator, see Fig. 11.
❑If the actuator cannot turn the ball with the pres-
sure indicated in Table 2, depressurize the actu-
ator and loosen both tilting device nuts (18) by
90°. When necessary, continue loosening the
nuts 90° at a time until the valve turns at the pres-
sure indicated in the table, see Fig. 12. Measure
the distance "A", see Fig. 13.
❑The measure "C" is the correct thickness of the
washer. If necessary, thin the washer. See Fig. 14.
❑Tighten the nuts (18).
❑Fill the cavities with Mobilplex 47 or equivalent
grease. Mount the caps (53).
Table 1 Body joint nuts, tightening torques
Valve Nut thread
UN
To r q u e
Nm (lbf ft)
PZ 500 (20") 1 1/8 - 8 UN 560 (420)
PZ 600 (24") 1 1/8 - 8 UN 560 (420)
PZ 750 (30") 1 1/2-8 UN 1400 (1050)
Fig. 10 Measuring "B"
Fig. 11 Air supply for adjusting the tilting device
Table 2 Feed pressure for adjusting the tilting device
Valve-actuator Feed pressure, bar (psi)
PZ 500 - BCP32 < 1.3 (< 19)
PZ 600 - BCP32 < 1.8 (< 26)
PZ 750 - BCP40 < 2.0 (< 29)
Fig. 12 Measuring "A"
Fig. 13 Loosening of the nuts
Fig. 14 The thickness of the washer

8 PZ 70 en 9
❑Fasten tight the gland packing nuts (17). Always
check the tightness of the gland packings after
installation of the valve.
5 INSTALLING THE ACTUATOR
Make use of the separate actuator instructions.
❑Make sure that the stem end is clean and free
from burrs.
❑Select the stem key slot that indicates that the
valve is in the extreme position when the valve is
closed.
❑Turn the studs into the actuator before sliding the
actuator onto the stem.
❑Slide the actuator into position carefully.
❑Adjust the open and closed position limits.
5.1 Adjusting open and closed positions
The open and closed position limits of the valve are
adjusted with the stop screws on the actuator, see Fig. 15.
Adjusting the closed position:
Using a soft pencil, draw two lines on the top surface of
the ball, the first at G1 and the second at G2 distance
from the edge of the ball flow port, see Fig. 16 and
Table 3.
❑Adjust the closed position retaining screw so that
the end of the G1 line is just visible directly under
the edge of the body flow port when the valve is
closed, see Fig. 17.
❑Adjust the closed position retaining screw so that
the valve limit switch is activated when the end of
the G2 line is just visible directly under the edge
of the body flow port, see Fig. 18.
Adjusting the open position:
❑Open the valve and adjust the open position
retaining screw so that the ball and the body flow
ports are parallel.
❑After the adjustment, lock the retaining screws
and seal them e.g. with Loctite 225.
Fig. 15 Actuator stop screws
Fig. 16 Drawing the marking lines
Table 3 G-dimensions
Valve G1, mm G2, mm
PZ 500 (20") 52 (2.1") 30 (1.2")
PZ 600 (24") 62 (2.5") 35 (1.4")
PZ 750 (30") 69 (2.8") 35 (1.4")
Closed position
stop screw
Open position
stop screw
Fig. 17 G2measure
Fig. 18 G1measure

10 8 PZ 70 en
6 REQUIRED TOOLS
In addition to standard tools, you will need the following
special tools, which can be ordered from the manufac-
turer:
❑Detaching the actuator from the valve
- extractor
7 ORDERING SPARE PARTS
When ordering spare parts, always give the following
information:
❑valve type designation (from the identification
plate or valve documents)
❑parts list number (or number of this manual), part
number, name of the part and number of pieces
required.
Table 4 Extractors
Valve-actuator Extractor
PZ 500 - BCP32 H801
PZ 600 - BCP32 H801
PZ 750 - BCP40 H802
NOTE:
Use original spare parts to ensure that the valve func-
tions as intended.

8 PZ 70 en 11
8 EXPLODED VIEW AND PARTS LIST
33
1
16
25
4
3
40
38
39
35 31
21
42 (BC)
41 24
53
18
32
20
7
13
41 (BC, B1C)
5
22
9
10 8
12
34 28
34
6
17
26
11
30
29
2
38*
44 (B1C)
Item Qty Description Recommended spare part
1 1 Body, upper part
2 1 Body, lower part
31Ball
41Ballseat
5 1 Bearing bushing
6 1 Gland
7 1 Console
8 1 Bonnet
9 1 Spiral gasket x
10 Screw
11 Stud
12 2 Stud
13 2 Stud
16 Nut
17 2 Nut
18 2 Nut
20 Disc spring
21 1 Key
22 1 Bearing bushing
24 1 Bearing strip x
25 2 Sealing cord x
26 1 Seal strip x
28 Packing ring x
Item Qty Description Recommended spare part
29 1 Identification plate
31 4 Stud
32 2 Adjusting plate kit
33 4 Lifting eye bolt
34 2 Support ring
35 Nut
38 1 Support
38* 1 Rear tilting device
39 1 Spiral gasket x
40 6 Screw
41 1 Bearing ring
42 2 Washer
44 1 Retainer plate
53 2 Protection cover

12 8 PZ 70 en
9 REAR TILTING DEVICE
85
74 73 77 80 78 72 76 79 64 70 68
66 65 63 62
38 60
61
8675 88 87 6971 67 82
81
83
84
Item Qty Description Recommended spare part
038 1 Support
060 1 Support bar
061 1 Cylindrical pin
062 1 Cylindrical pin
063 1 Piston rod
064 1 Bracket
065 1 Bearing strip
066 1 V-ring set x
067 1 Casting gland
068 2 Stud
069 2 Retainer plate
070 2 Disc spring set
071 2 Hexagon nut
072 1 Cylinder base
073 1 Cylinder pipe
074 1 Cylinder end
075 2 Piston
076 1 O-ring x
077 1 O-ring x
078 2 O-ring x
079 1 Bearing strip x
080 2 Piston ring x
081 1 Hexagon screw
082 4 Hexagon screw
083 1 O-ring
084 1 Hexagon nut
085 8 Hexagon screw
086 1 Lock nut
087 1 Filling ring
088 2 Protection plug

8 PZ 70 en 13
10 SAFETY INTERLOCKING
(JAMMER, REAR TILTING DEVICE)
UNLOCKLOCK
"JAMMER" CLOSE
UNLOCK
AIR SUPPLY
AIR SUPPLY
CLOSE
OPEN
UNLOCK LOCK
2.B 11.B 19
11.A
4.B
4.A
2.A1 2.A2
NOTE!
THE SOLENOID VALVE 11.A HAS TO
BE ENERGIZED BEFORE ANY VALVE
OPERATION OR WHEN VALVE FULLY OPEN.
2.B PNEUMATIC ACTUATOR B1CP 32
2.A1 PNEUMATIC "JAMMER" CYLINDER LOCK
2.A2 PNEUMATIC CYLINDER "REAR TILTING"
4.B LIMIT SWITCH CAPPING VALVE (4 SWITCHES)
4.A LIMIT SWITCH "JAMMER"
11.B 5/3-WAY SOLENOID VALVE, DUAL COIL
11.A 5/2-WAY SOLENOID VALVE, SINGLE COIL
19 FILTER REGULATOR
"REAR TILTING"

14 8 PZ 70 en
11 DIMENSIONS
*) The lower flange is made to correspond to the digester flange. The valve height A varies with the lower flange diameter.
**) Weights are only approximative due different lower flange sizes.
H
J
B
A1
BD
X
V
C
DN
A
A
A
NPT
G
NPT
B
F
For chip chute mounting
Optional lower flange pattern
1
L
U
N pcs
M
O
B-B
A-A
O, M, and N
acc. to customer's
specification
Valve Main dimensions in mm Pneumatic
actuator
type
Weight
kg
**)
Type DN Lower flange* A A1 B C L U1 F G X V J
UNC Depth
PZ 500 AK 500 490 ≤D ≤520
640 ≤D ≤680
730
630
400
300 920 625 590 3/4 38 1330 910 395 153 840 B1C 32 1250
PZ 600 AK 600 580 ≤D ≤590
720 ≤D ≤740
870
770
480
380 1070 740 700 7/8 42 1330 910 395 153 970 B1C 32 1750
PZ 750 AK 750 730 ≤D ≤740
880 ≤D ≤890
1080
930
600
450 1330 910 860 1 42 1660 1150 505 194 1200 B1C 40 2600
Valve Main dimensions in inch Pneumatic
actuator
type
Weight
lbs
**)
Type Size Lower flange* A A1 B C L U1 F G X V J
UNC Depth
PZ 500 AK 20 19.29 ≤D ≤20.47
25.19 ≤D ≤26.77
28.74
24.80
15.75
11.81 36.22 24.61 23.23 3/4 1.50 52.36 35.83 15.55 6.02 33.07 B1C 32 2750
PZ 600 AK 24 22.83 ≤D ≤23.23
28.34 ≤D ≤29.13
34.25
30.31
18.90
14.96 42.13 29.13 27.56 7/8 1.65 52.36 35.83 15.55 6.02 38.19 B1C 32 3850
PZ 750 AK 30 28.74 ≤D ≤29.13
34.64 ≤D ≤35.04
42.52
36.61
23.62
17.72 52.36 35.83 33.86 1 1.65 65.35 45.28 19.88 7.64 47.24 B1C 40 5720

8 PZ 70 en 15
12 TYPE CODE
Safety equipment versions are specified in Application
Bulletins 2611/01/02 (ACC) and 2611/01/03 (Jammer
inside the actuator).
Capping valve, series PZ
1. 2. 3. 4. 5. 6. 7. 8.
PZ K S 600 / 800 A R V
1. Product series/Construction/Pressure rating
PZ
Ball valve, lower body half with flange to be
specified in order. Upper body half with 16 pcs
tapped holes with metric threads or unified threads
starting from center line. Body pressure rating
PN 16 / ANSI class 150.
2. Connections / Special construction
K2 pcs PN 16 / DN 80 connections in lower body
half.
C2 pcs ANSI class 150 / NPS 3" connections in lower
body half.
NLower body half without connections.
Y
Special connections, special location e.g. in upper
body half or special quantity or some other
speciality.
3. End-to-end length
DN 500 / 20" DN 600 / 24" DN 750 / 30"
L730 mm / 28.74" 870 mm / 34.25" 1080 mm / 42.52"
S630 mm / 24.80" 770 mm / 30.31" 930 mm / 36.61"
YSpecial Special Special
4. Size
mm in
500 20
600 24
700 30
5. Nominal size of lower body half (mm or in)
Specified in the order. Nominal size of lower body half is
given in the same units as the valve size, see 4. sign
separated by slash.
6. BODY BALL BALL SEAT BEARINGS
A
CF8M CF8M +
hard
chrome
316 SS +
cobalt
based hard
facing
Coated
hard
chrome +
UNS S21800
C
CG8M CG8M +
CA-chrome
317 SS +
cobalt
based hard
facing
Cobalt
based alloy
7. Ball seat type
RScraping, locked, seat seals in grooves.
8. Options*
-Standard, without sign
VWater flushing for ball.
LRear tilting device
YSpecial

Metso Automation Inc.
Europe, Levytie 6, P.O. Box 310, 00811 Helsinki, Finland. Tel. [phone]. Fax [phone]
North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, MA 01545, USA. Tel. [phone]. Fax [phone]
Latin America, Av. Independéncia, 2500-Iporanga, 18087-101, Sorocaba-São Paulo, Brazil. Tel. [phone]. Fax [phone]
Asia Pacific, 238A Thomson Road, #25-09 Novena Square Tower A, 307684 Singapore. Tel. [phone]. Fax [phone]
China, 19/F, the Exchange Beijing, No. 118, Jianguo Lu Yi, Chaoyang Dist, 100022 Beijing, China. Tel. [phone]. Fax [phone]
Middle East, Roundabout 8, Unit AB-07, P.O. Box 17175, Jebel Ali Freezone, Dubai, United Arab Emirates.
Tel. [phone]. Fax [phone]
www.metso.com/automation
16 8 PZ 70 en