EVP ZJ Series User manual

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Operating instruction
-- ZJ, ZJP Series
Roots Vacuum Pump
This operating instruction is important to
assure pump operated and maintained
properly, it’s required to read this instruction
carefully you start the pump.
Kindly forgive that no special notification will
be given for future amendment of this manual.

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Index
1Important basic information..................... 1
1.1 Statement.................................................2
1.2 Warranty................................................... 2
2. Survey.........................................................3
2.1 Introduction.............................................. 3
2.2 Features................................................3
2.3 Usage and model explanation: ...4
ZJ/ZJP-1200...................................................4
3. Performance specification....................... 4
3.1 ZJ model Technical data.....................4
3.2 ZJP model Technical data.................. 5
3.3 performance curve...............................5
4. Operating principle....................................6
5. Installation.................................................. 7
6. Operating instructions.............................. 7
6.1. Preparations before starting..............7
6.2. Starting................................................... 8
6.3. Stopping................................................. 8
7. Maintenance & accessories.................... 8
7.1 Safety information...................................8
7.2 Oil change/gear box............................... 8
7.3 Oil Change/Shaft Seal Housing........... 9
7.4 Cleaning the Fan and the Cooling Fins
.......................................................................... 9
7.5 Cleaning the Pumping Chamber..........9
7.6 Disassembling and Assembling
procedure........................................................9
7.7 Accessories........................................... 10
7.8 Troubleshooting.................................... 10
8. Pump structure........................................12
8.1 ZJ pump structure................................ 12
8.2 ZJP series pump structure..................13
9. Installation drawing.................................14
9.1 ZJ series installation size .................. 14
9.2 ZJP series installation size ............... 15

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1. Warning & Attention
1.1 Statement
These operating instructions form part of the
technical documentation of the system, and are
addressed to the person in charge of the plant,
who is obliged to provide them to the staff
responsible for the system set-up, connection,
operation and maintenance.
He must ensure that all information included
in the operating instructions and the enclosed
documents have been read and understood.
These operating instructions are the
exclusive copyright of “ SHANGHAI EVP
VACUUM TECHNOLOGY CO. LTD “. Or its legal
successor.
Any company or personal cannot duplicate,
transfer it to third party, or make illegal business
use. Any operation on the pump should be in
accordance with the instruction.
1.2 Warranty
The manufacture does not accept liability for
damage to persons, animals, objects or
incomplete observance of the safety precautions
included in these operating instructions or by
modifications to the system or use of improper
spare parts.
Warning: Do not move and modify any safety and
insulating device, which may cause great
danger.
Warning: The pump can only pump gas. However,
it cannot pump any gas that is poisonous,
inflammable, explosive and corrosive,
either gas that reacts with vacuum gas.
The pump cannot used to transit gas. It
could be used to pump gas with few
particles; however, it cannot pump
Chemicals, condensates, powders and
other granules which will damage
equipment, reduce performance and
shorten service life.
Warning: Do not put the pump in rain, steam and
humid air which may cause an electric
shock, a short circuit and the damage of
the whole system.
Warning: Whenever changing the wire, please
use qualified wire.
Warning: Use suitable fuses to prevent short
circuit.
Warning: Do not put hands or other stuff into the
pump when it operates. The behavior will
cause bodily injury and damage of pump
parts.
Attention: The pipe of the cooling water cannot
be obstructing, otherwise the
temperature of pump will be too high.
Attention: The pump needs regular maintenance;
otherwise there will be damage, or even
reduction of its life. Cut down circuit
before check and repair, and only
operate when power is off.
Attention: The temperature of operation
environment should be 5 C-40 C to
prevent the pump from damaging and
shortening the life of use.
Attention: The pump should be put at safe places
with proper ventilation, solid and flat
base, and clean floor, without corrosive
gas. Otherwise, the pump will be
damaged and the life of use will be
shortened.
Attention: In cold area, the coolant jacket must
be drained after car stopped. Otherwise
the coolant may freeze and thus damage
the pump shell.

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2. Survey
2.1 Introduction
Roots pump have ZJ series and ZJP series.
As the input pressure is between 6.5-65 Pa, the
pumping speed is no less than 70L/s, 150L/s,
300L/s, 600L/s,1200L/s,1800L/s and 2500L/s. It is
a kind of roots vacuum pump in which a
couple of lobed rotors turn like 8-shape in
hig h speed synch ronou sly. Two rotors
rotate and pro duce aspir ation and exhaust
which principle is just like a ro ots blower.
As it works in a lower pressure, the free
flo w distance of gas molecul e is longer
and the resistance of gas passing a small
gap is mu ch larger. Thus, a bigger
compression ratio can be gai ned so that it
can also be us ed as a blowe r pump. Bu t it
cannot disc harge the gas to atmosphere
di rectl y and requires to be used with a
fore vacuum pump in seri es connection.
The n the sucked gas is dischar ged to
at mosphe re throug h the fore vacuum
pu mp (as chart 1).
Chart 1
2.2 Features
2.2 .1 There are defini te gaps betwe en
rotor and pump's ca vity, rotor and rotor
which are not in contact. As a result:
a. No friction, lower power co nsumption
tha t is comp ared with an oil sealed
mechani cal vacuum pump of the same
pumping speed.
b. No Oil-s ealing and lubrication so as to
avoid being polluted to the vacu um
pump by oil steam.
c. It is OK for pumping the gas with a litt le
dust.
2.2 .2 As the rot or has a good geometric
symmetry, its ro tatio nal speed is higher
tha n a common oil-sealin g mechanical
vacuum pump and at the same pumping
speed it has features of smal ler volume
and ligh ter weight.
2.2 .3 When the pump is in operatio n, there
is less vi brati on and its volume
ope ratin g ra tio is abo ut kv ≈0.5.
2.2 .4 Ther e is no compres sion in the pump
tha n that produced in a mechanical
vacuum pump. So, no discharge valv e is
required but agg lutinative ste am can be
rem oved.
2. 2.5 The pump can be st arted qui ckly and
a limi t vacuum can be reached in a short
time.
2.2.6 Whe n the pump is in a compression
scop e of 1. 3× 10 3-1.3pa (10-10 -2torr), it
will have a stable pumping speed and
qui ckly disc harge gas so as to remedy
the defe cts of diffusi on pump and
oil -sealed mechanical pump which are
in a compress ion of 1.3 ×10 3-1.3 Pa and
a lit tle pump ing speed. So, it is suitabl e
for a blower pu mp.Except the above
features, ZJP series Roots Pump has own a
relief valve which function is to control roots
pump's differential pressure between air-inlet
and air-outlet. When the differential pressure
is over standard one the relief valve opens
automatically. Because the pump's
inlet-outlet is interlinked, some of gas returns
to the inlet. At this time, the pump operates in
a constant differential pressure. When the
differential pressure is lower than that of a
relief valve, the valve close automatically
(shown as Diagram2)

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Diagram 2
2.3 Usa ge and model explanation:
2.3 .1 Usage:
vacuum degassing, vacuum smeltin g,
vacuum heat treat ing etc., in me tallu rgical
ind ustry and can also be used in chemical
industry., foodstuff, medicine. electrical
manufacture etc. Especially when a water-ring
vacuum pump is used for its fore pump, it can
extract the gas with large steam. So, it is much
suitable for productive procedures of distillation,
evaporation, freezing and drying etc.
2.3.2 Model explanation:
For Example: ZJ/ZJP-1200
ZJ/ZJP -mechanical boosting pump ;
(P: pump with overflow valve）
1200--capacity 1200 L/S
3. Performance specification
3.1 ZJ model Technical data
Model
ZJ-150
ZJ-300
ZJ-600
ZJ-1200
Pumping speed（L/s）
150
300
600
1200
Ultimate
pressure
（Pa）
1stage piston pump as
backing pump
5×10-2
2 stage piston pump as
backing pump
1×10-1
Max. allowable diff. pressure（Pa）
8×103
5×103
Motor rotary speed（RPM）
3000
Suitable motor power（kW）
2.2
4
7.5
11
Flange size
Inlet（mm）
100
150
200
250
outlet（mm）
100
150
200
200
Cooling water consumption（L/h）
120
150
Allowable temperature（℃）
100
Vacuum pump oil
100#
Weight（kg）
180
250
550
730

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3.2 ZJP model Technical data
3.3 performance curve
Model
ZJP-70
ZJP-150
ZJP-300
ZJP-600
ZJP-1200
ZJP-2500
Pumping speed（L/s）
70
150
300
600
1200
2500
Ultimate
pressure
（Pa）
1stage piston pump as
backing pump
5×10-2
2 stage piston pump as
backing pump
1×10-1
Diff. pressure at overflow valve （Pa）
8×103
4×103
2. 7×103
Motor rotary speed（RPM）
3000
Suitable motor power（kW）
1.1
2.2
4
7.5
11
22
Flange size
inlet（mm）
80
100
150
200
250
320
outlet（mm）
80
100
150
200
200
320
Cooling water consumption（L/h）
120
150
Allowable temperature（℃）
100
Vacuum pump oil
100#
Weight（kg）
110
190
265
570
770
1350

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4. Operating principle
Diagram 3.
The pump’s operating principle is shown as
Diagram 3. When the pump is rotating, the gas in
an exhausted container directly enters the space
encircled by two rotor and pump cavity and the
gas entered before is merely encircled by space
V0(see the shaded parts in Diagram). The mixed
gas in V0is merely encircled, but not be
compressed and expanded. With the rotation of a
rotor, the rotor’s top reaches the outlet port edge,
the gas in pump’s outlet port will spread to the
space V0, the mixed gas in V0will be carried to a
fore pump to be exhausted.
Thus, with the rotor’s continuous operation,
more gas will be carried to outlet port and
exhausted by the fore pump. That is the functional
principle of the pump’s volume.
When this pump is operating under a very
low pressure, because of rotor’s high speed
(3000rpm), the linear speed of the rotor’ surface is
near to molecular heat pace. At this time, the gas
impacted on the rotor is brought to an outlet port
with a higher pressure and removed by
beforehand vacuum pump. That is the molecular
functional principle of thin pump.
The combined action by the two principles
makes this pump have features of a big pumping
rate and a stable pumping rate curve in an interval
of 1.3x103～1.3 Pa.
According to this pump’s characteristics and
different operating condition, different fore pump
can be freely chosen which is not required too
high vacuum, but required to remove corrosive
gas with large steam or little dust. Completed with
a double-stage water-ring vacuum pump and a
piston vacuum pump, the limit vacuum is lower
and its power proportioning is different, too. Our
company can specially design various pump’s unit
according to user’s different requirements and
operating conditions. Welcome to contact us by
call or email.
V0
（1）
V0
V0
（5）
（4）
（3）
（2）

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5. Installation
5.1. Before installation, checking each part and
make sure there have no damaged, and to
see whether the product is fit to order
contract.
5.2. The pump must be installed in a place of
cleaning, no dust or a little dust and infection
with dielectrics. According to its operating
condition, the pump’s inlet port can be
equipped an anti-dust device (such as an
oil-sealed mechanical pump used as fore
pump).
5.3. The pump’s operating environment temp. is
5-40 ℃and the max. temperature rise is
cannot exceed 100 ℃.
5.4. According to operating condition, the pump
can be installed to a cement base or steel
frame base which should be calibrated.
Otherwise, it will be seriously affecting the
pump’s normal operation.
5.5. The gas inlet pipe should be kept sealing,
even a small leakage will affect its vacuum.
5.6. The length of a pipe is as short as possible,
using less joint and elbow with its diameter
less than its pump’s bore.
5.7. A flexible soft pipe such as a metal bellows
should be linked between this pump and a fore
pump so as to prevent damaging this pump
because of fore pump’s vibration.
5.8. It is better to equipped a vacuum valve on
the pump’s inlet and outlet pipes so as to
keep the vacuum of pump cavity after
stopping operation.
5.9. A valve should be installed on inlet pipe for
cooling water so as to regulate water quantity
and control the outlet temperature of cooled
water at 20-40℃。Pay attention to the water
temperature not over 40℃so as to avoid
producing sediment in a water tank.
5.10. An advance vacuum pump must be used
as this pump’s fore pump which is not used
alone. If an oil-sealed mechanical vacuum
pump is used as its fore pump, the two may
be used in series connection. So, this pump
is not suitable for drawing out the gases
such as too much oxygen content,
explosiveness, corrosion to ferrous metal,
chemical reaction to vacuum oil and
containing dust etc. Otherwise, the service
life of a fore pump will be shortening.
6. Operating instructions
6.1. Preparations before starting
①Check the cooling water pipe is open.
②Check there have enough lubrication oil in
end cover A and end cover B, make sure the
oil should be reached to the oil level of oil
mirror.
The oil cup of oil sealing should be filled full
usually and keep clean. New pump’s oil must
be changed after operating30 ～50 hours.
After then, the oil can be changed according
to the operating condition.
③If there have dust and other metal powder in
the exhausted gas, anti-dust or filler devices
should be installed in front of air inlet port. If
there have corrosive gas in exhausted gases,
some neutralizing measures should be
adopted.
④Check there have no any loosening in
various parts. Motor’s rotational direction
should be in accordance with arrow direction
on a pump.

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6.2. Starting
①Start the fore pump
②Open the gas inlet valve of this pump
③Open the water cooling valve and start this
pump.
④The pump should be in a stable operation and
the rotor without crash . Or should be
stopped.
⑤There is no leakage in the oil –sealed position
of a pump’s shaft.
⑥During the operating, if the temperature rise is
too high, the reading of current meter is
suddenly changed, an abnormal noise or
other unusual phenomena appears, the pump
should be stopped immediately.
6.3. Stopping
①Close gas inlet valve which on inlet port at
first.
②Stop pump（and close the inlet valve ）
③Stop the fore pump
④Close the water inlet valve of water cooling
pipe.
⑤If the pump’s operation is stopped for a long
time or its operating in a cold zone, the
cooling water must be drained out completely.
Otherwise, the cooling water will be frozen and
make the pump’s castings in frost crack.
7. Maintenance & accessories
7.1 Safety information
The safety information was given in the
following applies to all maintenance work.
Warning: Disconnect the electrical power before
disassembling the pump and venting to
atmospheric pressure. Make absolutely sure
that the pump cannot be accidentally started. If
the pump has been pumping harmful
substances, determine the nature of hazard and
introduce suitable safety measure.
When drying or blowing out the pump with
compressed air, technician must observe and
obey all safety regulations.
Caution: All maintenance and cleaning work
described in this section must be only carried
out by the trained person.
When handling the used oil please observe the
relevant environment regulations.
Improper maintenance or repairs may affect the
service life and pump performance.
7.2 Oil change/gear box
Warning: Before pumping oxygen or other highly
reactive gases at concentrations which
exceeding 20% in the atmosphere will be
necessary to choose a special pump. Such a
pump has to modified and degreased as well
as a special lubricant oil. Bearings consume a
little oil and the gear under clean operating
conditions. We recommend you to change the
oil after the first 500hrs operation to remove
any wearing residue. Then, under the normal
operating conditions, change pump oil after
every 3000hrs operating. Change oil much
more frequently when pumping corrosive
vapors or large amount of dust or when
sucking from the atmospheric pressure to
working pressure usually.
Warning: Before removing the oil-drain/oil filling
screw, the pump should be stooped at first
and vent to atmosphere pressure (have no
vacuum inside pump chamber). When the
pump has become warm during operation,
the casing and the oil temperature may
exceed 80℃,then should leave the pump to
cooling down. Always wear protective gloves
to protect yourself against aggressive
residues in the oil. Loosen the oil-drain/oil-fill
screw and then drain out the oil. Clean the
sealing surface and firmly re-install the
oil-drain screw using a gasket which is in a
perfect condition. Wipe off any oil residues
from the casing. Fill in new oil. Make sure to
use the right kind of oil.

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Caution: We recommend the vacuum oil is N100
or N62. Make sure the oil level is correct. If
the oil level is too low, the bearings and
gearwheels will not be lubricated adequately;
if it is too high, oil may enter into the pump
chamber. Clean the oil-fill port and re-install
the screw using a gasket which is in a perfect
condition.
Caution: The oil fill port must be sealed tightly. Or
the air will be entered into pump chamber
through impeller seals.
7.3 Oil Change/Shaft Seal Housing
Warning: The oil in the shaft seal housing should
be changed every 3,000hrs operating.
Loosen the oil-drain screw under the shaft
seal housing, drain out the oil and then screw
the oil-drain with a gasket which is in a perfect
condition. Fill in fresh oil through the oil cup
and the oil should be reached to the oil level.
Maximum level:
- when the pump is warm = 1/2 of the height
of the oil cup.
- when the pump is cold = 1/3 of the height of
the oil cup. Wipe off any oil residues from the
casing.
7.4 Cleaning the Fan and the Cooling Fins
Warning: The fans slits as well as the motor fins
will be polluted when working in humidity
conditions. In order to ensure a sufficient air
enter into motor and the pump’s casing, the
fan grids must be cleaned using a cleaning
brush when polluted. Any coarse dirt must be
removed from the motor fins and the pump.
7.5 Cleaning the Pumping Chamber
Warning: Under dirty operating conditions, pump
chamber and rotor will be getting polluted.
After removing the two connecting lines, the
contaminants can be blown out with dry
compressed air or flushed out using a
suitable solvent. Contaminants that cannot be
removing completely from the pump chamber
with a wire brush, metallic sponge or scraper.
Then change the oil.
Warning: During cleaning, the rotors must be
turned only by hand. The loosened parts must
not remain in the pump. After cleaning, check
the pump by slowly turning the rotor. The
rotor should be moved freely and without any
resistance.
7.6 Disassembling and Assembling procedure
7.6.1 Disassembling procedure:
7.6.1.1 Loosen screw and take down End cover B
7.6.1.2 Loosen screw (ZJ/ZJP70-ZJP600) or
using hydraulic gear device (for ZJ/ZJP1200-2500)
to take down gear.
7.6.1.3 Loosen screw and take down the gear
cover, bearing, bearing seat B, piston ring and
piston ring cover.
7.6.1.4 Loosen screw and take down locating pin,
and then disassembling side cover B.
7.6.1.5 Loosen screw and take down the motor,
disassembling coupling.
7.6.1.6 Disassembling the locknut in the
active/driven shaft.
7.6.1.7 Take down the shaft, rotor from the side
cover B direction.
7.6.1.8 Disassembling the check ring, bearing
cover, bearing seat A, side cover A, piston ring
and piston ring cover.

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7.6.2 Assembling procedure:
Checking all the disassembled spare parts
carefully, change spare parts if damaged. Clean
parts using petrol, diethyl ether or CCI4.
Assembling all parts after dried. The pump body
and side cover should be sealing in plane.
Assembling procedure is an opposite of
disassembling procedure. Technician should
adjust the end cover clearance.
NOTE: Assembling the active/driven gear of
ZJP1200/2500 should be using hydraulic
gear device, using fastener to make sure the
gear end cover come to the bearing end
cover at first, and then depressurization the
oil pump.
7.7 Accessories
Model
ZJP70
ZJ/ZJP150
ZJ/ZJP300
Reinforced seal
40*57*10(1PC)
30*50*10(2PCS)
30*50*10(2PCS)
O-ring
70*4（1PC）
100*4(2PCS)
115*3.5(3PCS)
18*24*4(5PCS)
170*5.7(3PCS)
18*24*4(5PCS)
Model
ZJ/ZJP600
ZJ/ZJP1200
ZJP2500
Reinforced seal
55*75*12(2PCS)
60*80*12(2PCS)
70*95*12（2PCS）
O-ring
220*5.7(3PCS)
18*24*4(5PCS)
220*5.7(2PCS);
270*5.7(1PC);
18*24*4(5PCS)
18*24*4（5PCS）
270*5.7(1PC)
340*5.7 （2PCS）
7.8 Troubleshooting
Fault
Possible cause
Remedy
Pump does
not start.
Motor is connected incorrectly.
Connect the motor correctly.
Faulty pressure switch.
Replace the pressure switch.
Oil is too thick.
Change the oil or warm the oil and the pump.
Motor rotor is malfunctioning.
After sales service.
Pump has seized up: damaged impellers,
bearings or gearwheels.
After sales service.
Pump gets too
hot.
Ambient temperature is too high or cooling
water supply is obstructed.
Install the pump at a suitable site or ensure
enough cooling water.
Pump is working in the wrong pressure
range.
Check pressure values of vacuum system.
Pressure differential is too great.
Check pressure values of vacuum system.
Gas temperature is too high.
Check the vacuum system.
Clearance between casing and impellers is
too small due to:
- contamination
- distortion of pump.
Clean the pumping chamber.
Ensure that the feet and connecting lines
aren’t placing a strain on the pump.
Excessive frictional resistance due to
contaminated bearings and/or oil.
Exchange oil.

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Oil level is too high.
Drain some oil to reach the correct level.
Oil level is too low.
Add oil to reach the correct level.
Wrong oil has been used.
Drain oil and fill in correct lubricant.
Bearing are malfunctioning.
After sales service.
overflow valve does not open.
Clean or repair the valve.
Power
consumption
of the motor is
too high.
See fault “pump gets too hot”.
See fault “pump gets too hot”.
Wrong mains voltage supply for the motor.
Connect the motor to the correct voltage
supply.
Motor is malfunctioning.
Repair the motor or exchange it.
Oil is too thick.
Exchange the oil or warm up the oil and the
pump.
Fault
Possible cause
Remedy
Pump is too
loud.
Clearance between casing and impellers
is too small due to:
-contamination
-distortion of pump.
Clean the pumping chamber.
Ensure that the feet and connecting lines aren’t
placing a strain on the pump.
Bearing or gearing is damaged.
After sales service. Switch off the pump at once.
Impellers strike the casing.
After sales service. Switch off the pump at once.
Rotor runs out of true.
After sales service. Switch off the pump at once.
Pump loses
oil.
Oil leak is visible:
Oil drain plug is not tight.
Drain lubricant, firmly screw in the oil drain plug
with a new gasket, fill in the correct quantity.
No oil leak is visible;
See fault “oil in the pumping chamber”
See fault “oil in the pumping chamber”
Oil level in the
oiler drops
Oil leak is visible:
Outer shaft seal is malfunctioning.
Exchange shaft seals.
No oil leak is visible;
Inner shaft seal is malfunctioning.
Exchange shaft seals.
Oil turns dark.
Oil has broken down.
Change the oil.
Pump gets too hot.
See fault “pump gets too hot”. After solving the
problem change the oil.
Oil in the
pumping
chamber.
Oil level is too high.
Drain lubricant to reach the correct oil level.
Oil leaks out of the system.
Check system.
Pump is not installed on a flat horizontal
surface.
Install pump correctly.
Pump has an external leak.
Check proper fit of oil-fill and oil-drain plugs,
replace gaskets if necessary.
Pump has an internal leak.
After sales service.
Impeller rings are malfunctioning.
After sales service.

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Pumping
speed of the
pump is too
low
Motor is connected incorrectly.
Connect the motor correctly.
Motor fault.
After sales service.
Pump or pump system has a leak.
Find and seal the leak.
Overflow valve does not close.
Clean or repair the valve.
Flow resistance in the intake or discharge
line is too high.
Use intake and discharge lines of sufficient
diameter.
8. Pump structure
8.1 ZJ pump structure
Sr.
Name
Sr.
Name
Sr.
Name
1
Pump body
10
Gear
19
Side end cover
2
Side cover A
11
Oil shedding plate A
21
Bearing
3
Side cover B
12
Oil shedding plate B
22
Bearing
4
End cover A
13
Bearing cove
23
Coupling
5
End cover B
14
Locknut
24
Oil seal
6
Active rotor
15
Coupling seat
25
Piston ring
7
Driven rotor
16
Oil glasses
26
Screw G3/8
8
Right frame
17
Water pipe joint
27
Motor
9
Left frame
18
Piston ring cover
28
Oil cup

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13
8.2 ZJP series pump structure
Sr.
Name
Sr.
Name
Sr.
Name
1
Pump body
11
Oil shedding plate A
21
Bearing
2
Side cover A
12
Oil shedding plate B
22
Bearing
3
Side cover B
13
Bearing cove
23
Coupling
4
End cover A
14
Locknut
24
Oil seal
5
End cover B
15
Coupling seat
25
Piston ring
6
Active rotor
16
Oil glasses
26
Screw G3/8
7
Driven rotor
17
Water pipe joint
27
Motor
8
Right frame
18
Piston ring cover
28
Oil cup
9
Left frame
19
Side end cover
10
Gear
20
Overflow valve

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14
9. Installation drawing
9.1 ZJ series installation size (Unit: mm)
Model
L
L1
L2
L3
L4
M
K
W
W1
W2
W3
H
H1
H2
ZJ-150
580
195
—
270
890
—
18
320
410
230
185
415
90
195
ZJ-300
740
275
—
350
1100
—
18
320
410
230
185
455
90
215
ZJ-600
760
277.5
—
375
1290
—
24
480
560
340
275
590
70
235
ZJ-1200
390
195
645
505
1665
M20
22
480
540
380
275
550
25
195
Model
D
D1
D2
n1-MA
d
d1
d2
n2-MB
ZJ-150
100
145
170
4-M10
100
145
170
4-M10
ZJ-300
150
195
220
8-M10
150
195
220
8-M10
ZJ-600
200
250
275
8-M10
200
250
275
8-M10
ZJ-1200
250
310
335
12-M10
200
260
285
12-M10

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15
9.2 ZJP series installation size (Unit: mm)
Model
L
L1
L2
L3
L4
M
K
W
W1
W2
W3
H
H1
H2
ZJP-70
194
97
—
224
740
—
14
230
270
170
195
280
40
120
ZJP-150
580
195
—
270
890
—
18
320
410
230
245
475
90
195
ZJP-300
740
275
—
350
1100
—
18
320
410
230
285
525
90
215
ZJP-600
760
277.5
—
375
1290
—
24
480
560
340
375
673
70
235
ZJP-1200
390
195
640
505
1665
M20
22
480
540
380
425
635
25
210
ZJP-2500
830
415
764
605
1935
M24
26
610
700
440
460
705
40
220
Model
D
D1
D2
n1-MA
d
d1
d2
n2-MB
N
N1
N2
n3-MC
ZJP-70
80
125
145
8-M8
80
125
145
8-M8
50
90
110
4-M8
ZJP-150
100
145
170
4-M10
100
145
170
4-M10
100
145
170
4-M10
ZJP-300
150
195
220
8-M10
150
195
220
8-M10
150
195
220
8-M10
ZJP-600
200
250
275
8-M10
200
250
275
8-M10
200
250
275
8-M10
ZJP-1200
250
310
335
12-M10
200
260
285
12-M10
200
260
285
12-M10
ZJP-2500
320
395
425
12-M12
320
395
425
12-M12
250
310
335
12-M10