Pneumatic Actuated Red colour Flange Butterfly Valve DN50~2200mm
1,structure is compact rack and pinion pneumatic actuators
2,low friction ,long service life and the switching frequency is up
to 1000000 times
3,used for angular stroke valves, ball valves, butterfly valves and
4,mounting flange in accordance to DIN/ISO5211,DIN3337,control
valve with NAMUR standard
5,high quality aluminum alloy, the surface hard anodized + Teflon
6,through a variety of certificate : ATEX, CE, MD, CQC certificate
7,all products in the factory, are to undergo a rigorous testing,
each actuator are marked on the production code, easy
identification and tracking service
8,high-end products, excellent quality, complete certification
1.Indicator:In field visible indicator and standard socket in
accordance to VDI/VDE3845,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 thelastest standards of ISO5211,DIN3337,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
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 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
10.Fasteners: All the fasteners are made of stainless steel to be resistant to
corrosion for a long time.
The suggested safety, factor for spring return actuator under
normal working conditions is 30%-50%
The torque needed by valve=80N.m
According to the table of spring return actuators′output, we find
output torque of JHA0435SR K9 is:
Air stroke 0°=275N.m
Air stroke 90°=196N.m
Spring stroke 90°=234N.m
Spring stroke 0°=155N.m
All the output torque is larger than we needed.
Attention: During the restoration,the spring return actuators′Output torque
will not be affected by the inputing air from the port B. On the
contrary, it will help the restoration of springs.
1.All products will be well packed before shipping.
2.All products have 12 months warranty and we sure the products
will free from maintenance within warranty period.
3.Reply your inquiry in 24 working hours.
4.Customized design is available.
5.Exclusive and unique solution can be provided to our customer by
our well-trained and professional engineers.
6.As an honest seller,we always use high quality material,advanced
machines,skilled technicians to ensure quality.
7.Have our owm engineer team,each machine is design as customer's
specfic requirement,the performance is higher 20%~40% than other
factory with same cost.