Rack And Pinion Actuators
Product DescriptionThis actuator series can output higher torque, used for middle-sized & large diameter valves. The connecting part with valve is applied to international standards ISO5211. According to users’requirements, devices like solenoid valve, positioners, reply device, filter regulator, limit switches and manually operated devices can be mounted on the pneumatic actuators.Technical Parameter(1)Indicator:Position indicator with NAMUR is convenient for mounting accessories such as Limit Switch box,Positioner and so on.(2)Pinion:The pinion is high-precision and integrative,made form nicklled-alloy steel,full conform to the latest standards of ISO5211,DIN3337,NAMUR.The dimensions can be customized and the stainless steel is available.(3)Actuator Body:According to the different requirements,the extruded aluminum alloy ASTM6005 Body can be treated with hard anodized,powder polyster painted(different colours is available such as blue,orange,yellow etc.),PTFE or Nickel plated.(4)End caps:Die-casting aluminum powder polyester painted in different colours,PTFE or Nickel plated.(5)Pistons:The twin rack pistons are made form Diecasting aluminum treated with Hard anodized or made form Cast steel with galvanization.Symmetric mounting position,long cycle life and fast operation,reversing rotation by simply inverting the pistons.(6)Travel adjustment:The tow independent external travel stop adjustment bolts can adjust±5°both open and close directions easily and precisely.(7)High performance springs:Preloaded coating spring are made form the high quality material for resistant to corrosion and longer service life,which can be denounced safely and conveniently to satisfy different requirements of torque by changing quantity of springs.(8)Bearing&Guides:Made form 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 applications Viton or Silicone.
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