Nippon Vpro NS User manual

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Instruction manual
Electric
Actuated
Needle
Valve
NS
N
H
N
P
SP-1401
Please read this manual before installation and use.
GENERAL
Compact and lightweight electric actuated needle valve. (linear)
LAX type actuator has a high quality positioner.
Valve
NS type For general use
NH type 3 piece / For high pressure and high temp.
NP type For Corrosive fluid
NS NH
NP
PRODUCT CODE
NS type (Linear) L A X N S 0 5 U U F 0 - -
(EQ%) L A X N S 0 5 U U F X E 1 5 - -
NH type L A X N H 0 5 U U T 0 - -
NP type L A X N P 0 1 K K T 0 1 5 - -
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13)
(1) Actuator
LAX
(2)
Valve
NS
NH
NP
(3)
Voltage
1 : 100 / 110 V AC
2 : 200 / 220 V AC
(4) Sizing code
0 : Standard
1 : Light
2 : Heavy
(5) Connection
5 : Threaded End Rc
1 : JIS 10K
(6) Body material
U : SCS14A / SUS316
K : PEEK
(7) Trim material
U : SUS316
K : PEEK
(8) Stem packing material
F : F-PTFE
T : PTFE
(9) Cv value
S : 0.05
M : 0.13
L : 0.34
H : 0.8 (NP: 1.4)
X : 2 (NP: 0.8)
(10) Flow characteristics
0 : Linear
E : EQ%
(11) Size [mm]
ex. 15 A 15
(12) Option
(13) Operation mode
Nil : Mode A
J : Mode B

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VALVES SPECIFICATIONS
Water Oil Air, Gas Steam Chemicals Sea water Slurry Negative pressure
NS NH NP type
Valve type NS NH NP
Design 2-way 2-way 2-way, Wafer
Connection Threaded End Rc Threaded End Rc JIS10K Flanged-end
Fluid
Max pressure 4 MPa 14 MPa 1 MPa
Size [mm] 10 to 15 10 to 15 15
Material Body SCS14A SUS316 PEEK
Trim SUS316 SUS316 + HCr PLTD PEEK
Seat F-PTFE SUS316 None
Stem seal Packing F-PTFE PTFE PTFE
Allowable Leak Rate Bubble-tight
Class VI (ANSI B16.104)
Less than 0.01 % of rated Cv.
(ANSI Class IV)
Less than 0.01 % of rated Cv.
(ANSI Class IV)
PRESSURE & TEMPERATURE RATING
NS NH NP
INHERENT FLOW CHARACTERISTIC
Linear EQ%
Cv value (%)
Valve opening (%)
Cv value (%)
Valve opening (%)
Range ability 30:1 Range ability 30:1

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ELECTRIC ACTUATOR SPECIFICATIONS
LAX type
Actuator type ( :Voltage code) LAX-030- LAX-070-
Voltage 100 / 110 V AC ±10 % 50/60 Hz (Code: 1)
200 / 220 V AC ±10 % 50/60 Hz (Code: 2)
Thrust [N] 300 700
Operation time [mm/s] 0.39 / 0.47 (50/60 Hz) 0.46 / 0.55 (50/60 Hz)
Stroke [mm] 7.5 7 to 11.5
Adjustment range Fixed Adjust by OPEN / SHUT trimmers
Power consumption [VA] 4.5 11
Motor Synchronous motor (Triac control)
Overload protection Timer
Method of operation Proportional control (linear motion)
Input signal 4 to 20 mA (Input resistance: 220 ) 4 to 20 mA (Input resistance: 250 )
Operation [Mode A] SHUT by decreased signal OPEN by increased signal (Standard)
[Mode B] SHUT by increased signal OPEN by decreased signal (Option: J)
Impossible to change the mode. Please appoint it at the time of the order.
Indication signal 0 mA : SHUT 1 mA : OPEN (External load resistance: less than 3 k)
Common in mode A / B
Resolution Less than 0.2 %
Duty cycle 100 / 200 V AC : 100 %
110 / 220 V AC : 50 % 30 min.
Ambient temperature -10 to 50 ºC
Space heater Built in to the control board
Manual operation Manual shaft
Enclosure Equivalent to IP65 (IEC 60529)
Housing material Aluminum alloy diecast (acrylic resin baking finish)
Terminal block For bare wire 0.2 to 1.5 mm² (AWG 26 to 16) Ground terminal: M3
Conduct port G3/8 Cable gland (for 5 to 10.5 mm cable)
WIRING
Note) • Input signal circuit is non-isolated. Do not connect DC (-) wire to other DC (-) common.
• Do not adjust operating angle of a valve (OPEN/SHUT trimmer).
Please contact us if you need to adjust operating angle.
LAX-070only
Voltage
100/110V AC
200/220V AC
Input signal
4 to 20mA
Indication signal
0 to 1mA
Ground terminal(M3)
Trimmers
Operation
range
Potentiometer
Indication
signal
Dead band

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ELECTRIC ACTUATOR SPECIFICATIONS
DIMENSION
LAX-030 LAX-070
Parts name
1 Body 4 Control board 7 Drive shaft
2 Motor cover 5 Terminal block 8 Manual shaft
3 Motor 6 Potentiometer 9 Rubber packing
ADJUSTMENT
LAX-030
Adjust ZERO / SPAN trimmer
The trimmer is already setting when the shipped.
Adjust SHUT trimmer
Please contact us if you need to adjust trimmer.
Terminal board : Mode A
LAX-070
Adjustment of dead band
Adjustment of dead band is useful to prevent hunting of the
actuator. Turning D.B. trimmer clockwise increases the dead
band range.
Adjust ZERO / SPAN trimmer
The trimmer is already setting when the shipped.
Adjust OPEN / SHUT trimmer
The trimmer is already setting when the shipped.
Terminal board : Mode A
8
9
7
8
9
7
SHUT O- ZERO
SPAN
：
O+
I+
I-
T2
T1
Terminal board
Connector
LAX-030
：
SHUT OPEN
D.B. O-
ZERO SPAN
A B
O+
I+
I-
T2
T1
Terminal board
Connector
LAX-070

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INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
HANDLING & STORAGE
HANDLING
Proper care in handling the valve should be taken to
prevent damage. Do not drop or throw it.
STORAGE
Store the valve in the protected area from dust,
moisture, and direct sunlight. If possible, valve should
be kept in the original packaging.
CHECKING
• Check the product code, power supply, and voltage
before installation.
• Make sure that the bolts are not loose.
INSTALLATION
PRECAUTIONS
Flush the pipeline carefully before installing the valve.
Foreign particles, such as sand or pieces of welding
electrode, will damage the trim and seats.
INSTALLATION NOTES
• This type valve has a flow direction. Install the valve
accordingly.
• NS / NH / NP type has a flow direction. Install the
valve accordingly.
• When the Cv value is small, the foreign object
contained in the fluid causes blockage. The filter is
used in front of the valve.
Threaded End Rc (NS / NH type)
• If seal tape or sealant protrudes into the valve,
malfunction may result.
Pay attention to tape treatment and coating amount.
Flanged-end (NP type)
• Use only rubber gasket for plastic flange.
• Use spring washer to prevent from decreasing
surface pressure gasket when the temperature
change happens frequently.
• Tighten all bolts using crossover method to load the
joint evenly.
• Wafer type needle valve is put between two seats of
flanged-end and tightened with long bolts.
SUPPORT
Use proper support to prevent distortion of the valve.
ENVIRONMENT
• Do not install in place where corrosive gas is present
or where vibration is heavy (0.5 G or more).
• When radiant heat causes the surface temperature of
the control unit to exceed 50 °C, provide an
appropriate shielding plate.
• If there is a possibility that the fluid and drive part
freeze, please take measures to prevent freezing.
POSITIONING
• Should be positioned through 90° upward from
horizontal. Provide space around the product to allow
manual operation, inspection and replacement work.
• Maintenance space more than 90 mm upward from
the actuator is required.
OTHER NOTES
Until the wiring is completed there must be no
condensation or flooding in the interior of the actuator,
after piping. Protective caps on the cable gland are
not waterproof.
WIRING
• Do not wiring outdoors on a rainy day.
• Check the power supply and voltage.
Connect the signal as shown in the wiring diagram.
Do not connect unnecessarily terminal.
• Use suitable flexible cable (5 to 10.5 mm).
Lock and seal the cable completely to prevent
condensation inside the actuator.
• Built-in terminal block can clamp up to 1.5 mm in
diameter without using solderless terminal.
• Allow proper cable slack for maintenance.
• Actuator should be electrically grounded.
Use the terminal marked ( ) inside the actuator.
PREVENT DEW CONDENSATION
• When installing the cover after wiring, perform the bolt
by the temporary tightening procedure and the
permanent tightening procedure to tightly and
securely tighten the rubber packing so that water does
not enter from the outside.
• Tighten the cable gland nut so that there is no leakage
from the wire entrance.

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INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
CONTROL
• Set to stabilize the MV value the PID constant of the
adjustment meter.
• The life of the actuator and the valve becomes short if
the movement of MV value is used on unstable
condition.
• Use shielded wire for signal wiring where high level
noise is generated or when the wiring distance is long.
• When wiring, if wiring of a signal is mistaken, it will not
operate correctly. Contact us when you use two valve
or more by one controller or indicator.
• Input signal circuit is non-isolated.
Do not connect DC (-) wire to other DC (-) common.
• The input signal and operation mode are set as
follows. (Factory shipped)
Input signal 4 to 20 mA
Operation mode Mode A
Operation SHUT by decreased signal
OPEN by increased signal
OPERATION
TESTING
• Make sure that power supply voltage is correct. Also
check operating position, wiring, speed and signals.
• During trial operation, check that valve movement and
output signal are correct.
ATTENTION
• Keep power supplied for built-in space heater to
prevent condensation inside actuator.
• Do not touch the moving parts of actuator in
operation.
• Never put anything on the actuator or make it into a
foothold.
ADJUSTABLE RANGE OF STROKE
LAX-030
• SHUT by an input signal 4 mA and shipped.
• It is not necessary to adjust the stroke.
LAX-070
• SHUT by an input signal 4 mA and shipped.
• Can be adjusted in the range of 7 to 11.5 mm.
(default stroke: 11.5 mm)
MANUAL OPERATION
PRECAUTIONS
• Manual operation should be a temporary operation.
• Be sure to turn off the power before manual operation.
NOTE
• See indicator during operation and check OPEN /
CLOSE position to prevent overturn.
• For manual operation, do not give more than the rated
torque and make at a slow rate. Actuator might be
damaged if excessive force is added.
Manual operation is to put a wrench
(width: 13 mm)
，
turn manual shaft slowly.
MAINTENANCE
• To prevent electric shock, be sure to turn off the power
when removing the actuator cover.
• Perform the first time in the state of the first stage
included in real operation.
• Do the routine maintenance at least once in half a
year.
Inspection items
• Confirm operation of opening and closing.
• Confirm that an actuator is not hot excessively.
• Confirm existence of abnormal noise and
vibration during operation.
• Confirm whether screws are loose or not.
• Confirm that water or condensation no remains
in the actuator.
• Confirm that operate the hunting or move
continuously at high frequency.
OPEN
CLOSE

OSCNS209-EN
Document is subject to change without notice.
NIPPON VALVE CONTROLS, INC.
1-21-19 Meieki minami, Nakamura-ku, Nagoya 450-0003 JAPAN
TEL: [phone] FAX: [phone]
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INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
TROUBLE SHOOTING
Problem Cause Solution
Actuator
does not
move.
Faulty wiring. Correct the wiring.
Voltage and
input signal are
not coming.
Check the voltage and
input signal.
Incorrect
voltage.
When it's burned out by
excess voltage, replace
the actuator.
Connection or
wiring is not
correct.
Correct the miswiring
and misconnection.
Be careful not to
mistake the plus and
minus of wiring.
Short the circuit,
contact failure.
Review wires and
connection.
Motor is too old. Replace the actuator.
Operation
is unstable.
Excess surge or
voltage was
applied.
Replace the actuator.
Rainwater
entered the
actuator.
Added high
harmonics noise
from an inverter.
Attachment a filter for
each inverter maker
option.
Effect of high
level noise.
Use the shielded wire
and ground the wiring.
Separate signal wire
from power line.
Problem Cause Solution
Stop in the
mid position.
• Biting of
valve seat.
• The scale
has adhered
to the valve
trim.
Remove a foreign
object.
Clean or replace valve
parts.
(NH)
Overload
protector runs
because of
over-torque.
Motor protection circuit
returns by the signal of
operation of an
opposite direction. Turn
on the power again.
Leakage
from
valve body
• Valve cap
get loose.
• Valve body is
damaged.
Replace the valve.
(NS NP)
Leakage
from
valve seat
Seat is worn
or damaged.
Replace the valve.
Replace the actuator.
Loose
seal-spring,
damage.
Replace seal-spring.
Leakage
from
valve trim
Packing is
worn or
distorted.
Replace the valve.
Tighten the gland nut.
(NH)
For more information contact
NIPPON VALVE CONTROLS, INC. for consultation.