タイトルまたは説明
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°ï¿½
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.
国: |
China |
モデル番号: |
JHA0020DA
|
离岸价格: |
30 ~ 1000 / Set (交渉可能)
Get Latest Price
|
ロケーション: |
- |
最低注文量の価格: |
30 per Set |
最低注文量: |
10 Set |
パッケージの詳細: |
Outer packing:Carton and wooden frame to protect the goods during transportation Inner packing:Ctn |
納期: |
30-45days |
供給能力: |
100000 Set per Year |
支払いタイプ: |
L/C, T/T |
製品グループ : |
DA pneumatic actuator
|