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Hytork Air Fail Safe Actuator - China

price: contact company for price

The Hytork Air Fail Safe Actuator is for larger valves with higher

torque requirements, requiring reliable fail safe operation utilising a

unique in-built air reservoir giving fail safe action without the torque

losses inherent of spring designs. For torque requirement valves up to

28500 inch.lbs (3220 Nm.) The AFS (Air Fail Safe) actuator is designed

to provide a high fail stroke torque in a double rack and pinion

actuator that cannot be achieved using springs. All the safety and

performance features of double rack and pinion actuators are maintained

as is the Hytork XL reliability.The HYTORK AFS maintains the highest

seen air supply pressure within the chamber modules, to be released upon

control demand. This design also prevents closure 'creeping' when air

supply pressures drop, which occurs with all spring return designs.

Torque output is constant in the powered stroke with only a small drop

off on the fail stoke. The available torques are proportional to the air

supply pressure. Spring changes for various air supply pressures need

not be made.The AFS operates as a double acting actuator in both

directions until there is a loss of supply pressure. When this loss

occurs, the compressed air stored in the chambers powers the actuator to

close the valve. This makes the AFS Series suitable for use in ON/OFF

and MODULATING CONTROL situations while still providing the fail safe

requirement. The AFS is supplied already furnished with an installed,

direct mount solenoid valve. The coil type is selected to suit your site

requirements. This saves on site piping and ensures the assembly has

been fully tested.

At the same time, we still can offer the items as below:

Hytork XLW Series Water Operated Valve Actuator

Hytork XL 'Commando' Valve Actuator

Hytork Excel (XL) Series of Valve Actuator


Company Contact:


  • Phone: 862885218395

  • Address: Huayangnian,huahaoyuan , Chengdu , China

  • Email: Email


Published date: June 26, 2013 -

  • Business Description: Established in 2003, Contranspower Co., Ltd was an integrated trading, technology and service company engaged in retail and wholesale of international automotive products, imported hydraulic and pneumatic components, instruments, meters and various kinds of valves and valve accessories. With establishing partnerships with many international leading manufactures, we can provide customers with a comprehensive range of high quality services from process control valve accessories, petroleum and chemical instruments and meters to industrial automation.We possess extensive knowledge in technical requirements of related projects and capacity in equipment selection. We has leading expertise in petroleum and natural gas, petroleum chemical, refining, pulp and paper manufacture, water treatment and various process industries. The company is the agent for following recognized international brands:Parker Automatic, USA (hydraulic, pneumatic, EMD, CIC, instruments and meters, flow connectors, etc.); explosion proof solenoid valves from ASCO (USA), Kaneko, Konan SMC and CKD (Japan); electrical, hydraulic and pneumatic drives from TYCO BIFFI (USA); Cameron combined hydraulic pneumatic mechanisms, limit switches from WESTLOCK, AVID, HONEWELL (UK) and AZBIL(Japan), valve position controllers from ABC, Siemens, SMC and AZBIL;Borsch Rexroth (Germany), FESTO hydraulic and pneumatic components and Nass coils (German) and so on.
    In industrial automation area, the company offers following leading products and services:
    Valves, actuators and accessories (mainly for project cooperation)
    The company is the selling agent for flow drives (with imported BIFFI) from Cameron and Tyco (USA); Ledeen pneumatic actuators and electrical actuators, and pneumatic hydraulic interlocked actuating mechanism; TYCO AVID valve accessories: filter regulator, solenoid valve; Westlock and AVID value limit switch;and electrical/pneumatic and pneumatic/pneumatic localizers from ABB, Siemens, SMC, AZBIL (Japan) and YAMATAKE.We also can collaborate with customers in projects with selecting high quality and proven products and supplying complete equipments according to customer specific requirements.
    Automatic instruments (including project cooperation)
    To provide instruments, meters, automatic devices, filters, flow connectors, seals, etc. components and parts from the international industrial leader Parker (Parker Hannifin);ASCO explosion proof solenoid valves; Honeywell limit switches (USA), Herion explosion proof solenoid valve (Germany), and transformers, transducers, rasters, isolated gates, flow meters and controllers from TURCK, P+F, Burkert and other domestic and international recognized manufacturers.
    Parker, BEKO etc. imported complete filter series and flow detection products
    Only for filter, we can provide more than 5000 kinds of interchangeable components and parts of different brands and provide spare parts supporting services.
    Pneumatic components and generic flow controlling valves
    Products from Usa, German, Japan, UK and Korean leading manufactures such as PARKER, ASCO JOUCOMAITC, BOSCH, AIRTEC, KANEKO, SMC, CKD, NORGREN, FESTO and YTC; and equivalent products of domestic leading manufacturers.These products includes various solenoid valves, pneumatic valves, proportioning valves (flow pressure), cylinders, special cylinders, pressure switches, sensors and filter/pressure regulator assemblies.
    Hydraulic components and parts and medium small sized system retrofitting
    Hydraulic components and parts and whole sets of Parker hydraulic (including engineering hydraulic), Bosch Rexroth, Atos, Rexroth China, Vickers, Moog and equivalents of domestic manufacturers.We also provide medium small sized system retrofitting services for customers in Sichuan and adjacent provinces.
    We hope to have the opportunity to work with you and we will make every effort to satisfy your requirements!

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