Description

The CLEARGUARD® series Autorodder is designed in accordance with ASME and ANSI standards using ASTM and DIN specified materials and grades, manufactured in accordance with ISO 9001 Quality Assurance Standards. The device is safe, easy to operate and simple to maintain, using hand held tools.

The Autorodder can be engineered and designed to suit most process installations. CLEARGUARD® series autorodders are manufactured using the most modern manufacturing methods and tested to the highest standards. The Standard autorodder is manufactured from Stainless Steel with energized process compatible packing materials, and sized to suit your application. Each autorodder is assigned a unique serial number allowing complete traceability on materials, testing and ease of spare part selection. CLEARGUARD® AUTORODDERS CAN BE APPLIED EVERYWHERE… Wherever Pressure Instruments are currently being used on dirty processes. Wherever Pressure Transmitters COULD be used to measure the Process Variable. Wherever any measuring, sampling or testing point is inhibited by debris or scale accumulation in the tapping point.

How Does The Autorodder Work?

The CLEARGUARD® autorodder is a simple device. By using proven pneumatic cylinders, operating on instrument air, a special scraper is periodically stroked through the tapping point, scraping all scale and debris from inside the tapping point. The scraping/cleaning stroke takes less than a few seconds and even during the stroke, your field instrument/pressure transmitter is on-line, measuring your process variable. Able to be operated locally or remotely, you get to dictate how often you would like the scraper to clean the tap.

Autorodders Technology

Blocked or plugged tapping points (taps) have been a curse on accurate and reliable process variable measurement for decades. Now that problem has been solved. Designed in Western Australia and manufactured in Australia and the U.S.A., the CLEARGUARD® autorodder keeps your tapping points clear at all times. Operating in applications where process temperatures can reach 1400 degrees Celsius (2552 degrees Fahrenheit) and pressures up to 100 BAR (1450psi), the CLEARGUARD® autorodder has proven itself to be reliable and effective in keeping the tapping point open, allowing for accurate and unimpeded process variable measurement.

Technical Features

• Blow out proof stem
• Seal wear tell tale
• Lightweight and robust
• Custom engineered
• Fail safe manual extraction

Configurations

• Process Connection sizes from 15mm (1/2 inch) to 80mm (3 inch)
• ANSI Class 150 up to 600
• Screwed NPT, BSPT and Flanged Connections
• Stroke lengths of 50mm (2 inches)to 1200 mm ( 48 inches)
• Optional Isolation Valve complete with Integral impulse/vent connections
• Pressure assisted packing
• Low temp, ambient and high temp versions available
• Toxic service versions available

Key Benefits

• Safety - Reduce injuries from burns and/or falls from costly manual rodding
• Process - Purge media reduced by up to 80%
• Accuracy - No spikes or false readings with clear tapping points
• Production - No process interruptions or disturbances due to incorrect instrument feedback
• Maintenance - Optional battery pack lasts for one year or the control system can be hard wired
• P.M. Reduction - No need to clean taps manually
• Easy Installation - Needs only instrument air
• Robust Design - Engineered and Designed for long service life
• Patented Apparatus - Does not effect pressure measurement signal
• Pro-active, preventative maintenance tool
• Optional Single, one piece isolation valve with Integral drain/vent behind isolation valve to bleed pressure into safe area
• Low, almost static flow inert parasitic purge
• Scaling removed frequently and periodically
• Manual rodding out eliminated
• No partially plugged or blocked tapping points = No spurious outages
• No need to isolate process = No lost production

Typical Applications

• Mineral Refining
• Petrochemical
• Pulp and Paper
• Steel Making
• Oil Refining

Download Datasheet Clearguard_Autorodder.pdf