Rotork supplies actuators to chemical plant
A
Rotork Controls product story
Edited by the Engineeringtalk editorial team
Jul 16, 2009
Rotork actuators with thrust compensators assure reliable operation of high-temperature chemical valves.
A production plant ordered by a Japanese chemical company has been equipped with Rotork IQpro intelligent electric actuators that are specially designed to assure the reliable performance of valves subjected to operation in high and dramatically fluctuating temperatures.
The new plant, which is being installed by Mitsui Chemicals at Ichihara, uses Mitsui's technologies to manufacture specialised chemical products.
During the process the gate valves operated by the Rotork actuators will be handling gases at temperatures between 300C and 650C.
In such severe operating environments there is a potential danger that a closed valve could become jammed in its seat as a result of the thermal expansion of its valve stem.
In extreme cases this can cause the valve stem to distort or the valve to break.
Conversely, a valve that is moved to its closed position when at a very high temperature can be prone to seat leakage if it subsequently cools down.
In order to overcome these potential problems on 18 of the valves, Mitsui Chemicals accepted the valve vendor's recommendation to use Rotork IQpro actuators equipped with a specially modified valve stem nut design.
The design - known as the thrust compensator - was originally developed to overcome critical high-temperature applications in the nuclear power generation industry.
The thrust compensator consists of a spring-loaded stem nut that will absorb any expansion or contraction caused by temperature fluctuations without affecting the position of the closed valve stem.
The construction of the device is also designed to ensure that the positive valve shut-off demanded in critical applications is not compromised.
The Rotork thrust compensator design solution has proved itself in many severe service applications.
As a result, it is generally specified as standard for high-temperature operation by the manufacturer of the gate valves supplied for the Mitsui Chemicals project.
Not what you're looking for? Search the site.
Google Ads
Contact Rotork Controls
Related Stories
- Gast rocking pistons raise the game
- Screw jacks give Rother Salmon a helping hand
- Moog actuation solution operates Centre Court roof
- Underwater pipeline drill uses PBC Linear slides
- Power Jacks actuators used in Wimbledon roof
Articles by product category
- Consultancy and Services (904)
- Machine Building (4,536)
-
Engineering Design Software (6,194)
- Engineering Design Software (12)
- 2D CAD software (201)
- 3D CAD software (1,157)
- FEA and structural analysis software (370)
- Fluid, thermal, noise, vibration software (334)
- Simulation, modelling, validation software (918)
- Rendering, visualisation, styling software (196)
- Materials design and moulding design software (152)
- Process, instrumentation, automation software (259)
- Electrical design software (164)
- Publishing and documentation software (229)
- Maths, charting, statistics, QA software (317)
- Data, document management software (312)
- CAM, CNC, production management software (571)
- File conversion software, data capture (352)
- PLM and collaboration software (650)
-
Drives, Motors and Controls (3,371)
- Drives, Motors and Controls (1)
- Precision Motors and Gears (413)
- Industrial Drives/Controls (1,278)
- Linear Drives and Motors (114)
- Industrial Motors (498)
- Stepper and Servo Drives, Motors, Controls (1,065)
- Small Mechanical Components, Joining, Tools (1,979)
-
Control and Instrumentation (5,039)
- Plantwide control (1,330)
- Plant- and Machine-Wide Communications (1,178)
- Smaller-Sized PLCs (387)
- CNC and Motion Controllers (184)
- Mid-range and Large PLCs (201)
- Power Supplies, Uninterruptible Power (562)
- HMIs/Operator Interfaces (294)
- Logic Controllers, Timers and Relays (96)
- Cabling, Conduit, Signal Conditioning (807)
-
Monitoring, Measurement and Quality (5,473)
- Monitoring, Measurement and Quality (1)
- Data acquisition Software and Communications (494)
- Data Acquisition Hardware and PC I/O Boards (472)
- Electrical and Electronic Testing, PAT Equipment (631)
- Form/co-ordinate, optical, vision instruments (709)
- Gauges, Indicators and Instruments (441)
- Data loggers (423)
- Materials testing equipment (418)
- Telecomms/network test equipment, software etc (154)
- Testing and Calibration Services and Information (504)
- Testing, analysing and monitoring equipment (1,226)
-
Electrical and Electronic Equipment Design (4,170)
- Batteries, chargers and circuit protection (558)
- Connectors, Terminals, Busbars, Slip Rings (680)
- Enclosures and Equipment Cooling Fans (709)
- Knobs, Handles and Enclosure Hardware (423)
- PCs and Embedded Systems (800)
- Electrical and Electronic Subassemblies (370)
- Electrical and Electronic Components (630)
-
Materials and Processing (2,971)
- Materials and Processing (5)
- Materials and components (2,221)
- Rapid Prototyping (458)
- Materials processing and testing (287)
-
Engineering Industry News, Resources (6,095)
- Engineering Industry News, Resources (4)
- Engineering Business News, Views (388)
- Engineering Exhibitions, Events (562)
- Engineering Conferences (425)
- Engineering Seminars (400)
- Engineering Industry Developments, Awards (633)
- Engineering Guides, Newsletters (350)
- Engineering Recruitment, Employment (219)
- Engineering Training Courses (434)
- Engineering Education, Resources, Standards (838)
- Engineering Industry Reports, Surveys (597)
- Electronic Resources for Engineers (278)
- Health and Safety Legislation (402)
- Health and Safety Strategy, Risk Assessment (113)
- Health and Safety Consultancy, Software (175)
- Health and Safety Events, Training, News (277)
-
Powertrain Design (3,618)
- Powertrain Design (2)
- Bearings (945)
- Chains and belts (326)
- Gears, brakes, couplings and engines (1,445)
- Hydraulic Components (471)
- Lubricants (428)
-
Capital Equipment (3,394)
- Capital Equipment (1)
- Manufacturing Machinery and Plant Equipment (468)
- Production line blowers and fans (62)
- Compressors and Air Treatment (512)
- Electronics Manufacturing, Tools, Instruments (192)
- Electrical hardware (131)
- Machinery and Production Equipment (1,096)
- Robotics, Handling and Storage (932)
-
Sensors (7,102)
- Sensors (8)
- Accelerometers and Vibration Sensors (429)
- Loadcells, Force Sensors, Torque Sensors (705)
- Pressure sensors (621)
- Flowmeters and Flow Sensors (619)
- Level Sensors and Leak Detectors (528)
- Linear Position Sensors (401)
- Rotary Position, Tilt and Angular Sensors (548)
- Proximity Sensors (704)
- Gas, Chemical, Radiation, Magnetic Sensors (285)
- Humidity and Environmental Sensors (153)
- Temperature sensors (612)
- Vision and Colour Sensors (1,386)
- Barcode Sensors (103)
- Valves, Pumps, Process Hardware (3,633)
