Product Description
Product
structure
1.Indicator
In field visible indicator and standard socket in accordance to
VDI/DE***5,NAMUR could be installed and export all the
accessories such as limit switch cabinet electric localizer and
position sensor.
2.Pinion
The pinion is high-precision and integrative,made from
nickelled-alloy steel,full conform to the lastest standards of
ISO***1,DIN***7,NAMUR,The dimensions can be customized and the
stainless steel is available.
3.Actuator Body
The extruded cylinder body is made of high quality aluminum alloy
with fine machined socket and hard anodized outer surface(
anodisation would be provided at special occasion + teflon
coat)to prolong the service life and lower the coefficient of
friction.
4.End caps
Die-casting aluminum powder polyester painted in different
colours,PTFE or Nickel plated.
5.Pistons
The twin rack pistons are made from Die-casting aluminum treated
with Hard anodized or made from Cast steel with
galvanization,Symmetric mounting position,long cycle life and
fast operation,reversing rotation by simply inverting the
pistons.
6.Travel adjustment
The two independent extemal travel stop adjustment bolts can
adjust ±5°at both open and close directions easily and precisely.
7.High performance springs
Preloaded coating springs are made from the high quality material
for resistant to corrosion and longer service life,which can be
demounted safely and conveniently to satisfy different
requirements of torque by changing quantity of springs.
8.Bearings&Guides
Made from low friction,long-life compound material,to avoid the
direct contact between metals.The maintenance and replacement are
easy and convenient.
9.O-rings
NBR rubber O-rings provide trouble-free operation at standard
temperature ranges,for high and low temperature applications
Viton or Silicone.
*0.fasteners
All the fasteners are made of stainless steel to be resistant to
corrosion for a long time.
�
Operating principle of DA
double acting type
�
� � �When the air source pressure comes into the cylinder body
between the �two pistons from air entrance(A)and pushes the
pistons toward the ends of the cylinder body,the air between the
pistons and the ends of the cylinder body is released from air
entrance(B), actuator two piston racks synchronous drives the
output shaft to rotate counterclockwise(0°**0°) .
� � �The same, when air source pressure comes into the ends of
the cylinder body from air entrance (B)and pushes the pistons
toward each other with the air between two pistons released from
air entrance(A),the output shaft(gear wheel)would be driven by
the racks of the pistons simultaneously to rotate
clockwise(*0°*0°).
� � �(If the pistons are assembled in different directions from
each other,the output shaft would turn out to rotate inverse
direction,namely the double acting reverse "CCW" type).
�
The model of the double
acting actuators
� �An increment should be added to the identified valve torque
for safe when select the pattern of the pneumatic actuator.For
vapor or non-lubricant liquor medium, the increment should be up
to *5% of the valve torque,*0% for non-lubricant pasting liquor
medium,*0% for non-lubricant dry air medium,*0% for non-lubricant
particle medium delivered be air and *0% for lubricating clean
medium with low friction respectively, (the safe increment above
is recommended in theory for reference)
Example:
�The torque needed by valve= **0Nm
�The torque considered safety factor(1**0%)=**0Nm
�Air Supply=5Bar
According to the above table,we can choose the minimum model is
JHA***0DA
Note:Make sure that the
torque necessary to operate the valve is compatible with the
actuator torque(it depends on both actuator type and air supply).
Please note that the requested torque depends not only on the
valve,but also on the working conditions and the safety margins
of the plant,too.
�
Operating
conditions:
1,Operating media: Dry or lubricated air, or the non-corrosive
gases The maximum particle diameter must less than *0 µm
2,Air supply pressure:
The minimum supply pressure is 2.5Bar
The maximum supply pressure is 8Bar
3,Operating temperature:
Standard: **0°C~**0°C
Low temperature: **5°C~**0°C
High temperature:**5°C~***0°C
4,Travel adjustment:Have adjustment range of ±5°for the rotation
at 0°and *0°�
5,Application: Either indoor or outdoor
If you are interested in our
products,please feel free to contact me,It will be my big
pleasure to hearing from you.
| Country: |
China |
| Model No: |
JHA0020DA
|
| FOB Price: |
30 ~ 1000 / Set (Negotiable)
Get Latest Price
|
| Place of Origin: |
- |
| Price for Minimum Order: |
30 per Set |
| Minimum Order Quantity: |
10 Set |
| Packaging Detail: |
Outer packing:Carton and wooden frame to protect the goods during transportation Inner packing:Ctn |
| Delivery Time: |
30-45days |
| Supplying Ability: |
100000 Set per Year |
| Payment Type: |
L/C, T/T |
| Product Group : |
DA pneumatic actuator
|
