Dynisco Pressure Sensor Maintenance and Cleaning Procedures

Certain maintenance and cleaning measures should be performed to ensure the long-term durability and accuracy of your Dynisco pressure sensor. This video demonstrates how to remove, care for, and maintain a Dynisco pressure sensor from an extruder.

This video explains the proper removal, care, and maintenance process of an extruder's Dynisco pressure sensor.

Do not attempt removal of the sensor while there is pressure in the process still, as this could cause polymer ejection through the sensor mounting hole.

The technician will unscrew the sensor from the extruder. Ensure that you are wearing proper safety equipment while removing the sensor. Dynisco recommends the sensors are removed from the process while hot. The technician then wipes clean the sensor immediately with a cotton rag. Dynisco does not recommend the use of sharp tools, screwdrivers, or wire brushes for removing polymers. With the diaphragm free of material, the technician examines the tip for damage or deformations. Damage may appear as a depression or a bubble on the diaphragm. Any deformation may affect the pressure reading. Dynisco recommends the sensor be sent back for evaluation by our repair department upon discovery of damage.

With the sensor removed, the focus is now on material that has entered the threaded area and the 45-degree seat—using the Dynisco mounting hole cleaning tool kit. The kit consists of a four fluted cleaning drill for cleaning the ½ 20 UNF threads and then a unique tool for cleaning the  45-degree seat (guide sleeve and T handle).

The technician will manually spin both tools into the mounting hole threads to remove polymer residue and other materials. After the hole is clean, the technician uses the gage plug included in the kit to check the mounting hole for contact points via the Dykem machine blue. The Dykem should not be missing around the edge of the tip; only the 45-degree seat will make contact. If contact appears on the outer diameter of the tip, then there is potentially pressure building on the sensing end of the sensor, which can cause damage, such as depressions or bubbles.

Once the mounting hole and contact points are confirmed clean, reinstall the sensor into the process, paying attention to the correct mounting torque. For the ½ 20 UNF threaded pressure sensor,  the recommended torque is 100 inch-pounds. Hand-tight and a quarter turn is the best practice. Over torque can cause the threads to gall. If your sensor is over-torqued,  use anti-seize to aid in the future removal of the sensor. Heat the pressure sensor to the proper temperature before re-pressurizing the extruder.

Proper care and maintenance of your sensors and mounts are essential for reducing operating costs and prolonging the lifespan of your sensors.

For more information on Dynisco products in New England and Upstate New York, contact AP Corp. Call (508) 351-6200 or visit https://a-pcorp.com.

Special Offer - Up To 35% Off a Druck DPI620PC or DPI620SPC Package

35% Off a Druck DPI620PC or DPI620SPC Package

The Druck DPI 620 is a sophisticated multi-function calibrator and HART/Foundation Fieldbus communicator combined to provide a world-class pressure measurement and generation. For usage in hazardous places, ATEX and IECEx approved intrinsically safe versions are available. 

Druck is offering a special promotion. Get 35% off when you purchase a DPI620PC or DPI620SPC package.

A DPI620PC package is defined as one of the following:

  • Safe Area - PN DPI620PC-2barg, DPI620PC-7barg, DPI620PC-20barg
  • Hazardous Area - PN DPI620SPC-2barg, DPI620SPC-7barg, DPI620SPC-20barg
  • HART capability, Safe Area - PN DPI620PC- H-2barg, DPI620PC-H-7barg, DPI620PC-H-20barg
  • HART Hazardous Area - PN DPI620SPC-H-2barg, DPI620SPC-H-7barg, DPI620SPC-H-20barg

All include Druck’s latest 4Sight2 software for up to 35% off the combined list price of the individual products.

For more information in New England, contact AP Corp. Call (508) 351-6200 or visit https://a-pcorp.com.

Part Cleaning Demonstration with the Dynisco PolyClean

This video demonstrated how to clean parts, in this case pressure sensors, using the PolyClean fluidized temperature bath.

Dynisco’s PolyClean is a fluidized temperature bath that will clean parts and tooling  2 to 3 times faster and safer than traditional cleaning methods, such as ovens. Dynisco’s fluidized bath system is air¬controlled with advanced PID temperature controller for optimal thermal performance. The system uses aluminum oxide sand (heated up to 1112°F) and air to surround the part or tooling. The “sand” will gently breakdown the polymer without damaging the part or tooling.

For more information about Dynisco in New England and Upstate New York contact AP Corp. Call (508) 351-6200 or visit https://a-pcorp.com.

A Live Webinar - Advanced Induction Heating: Brazing - Register Now!

Advanced Induction Heating: Brazing

Ambrell Induction Heating Solutions, a world leader in induction heating technology,  has an important upcoming PRO Skills webinar:

Advanced Induction Heating: Brazing

June 16th at 11:00 AM Eastern Time


Dr. Girish Dahake, Sr. Vice President of Global Applications

Dr. Dahakeone is one of the world’s foremost induction scientists. His webinars draw hundreds of attendees per event and they come from countries across the globe.

Each webinar is designed to provide helpful, relevant content about induction heating.  The webinars are approximately 1 hour in length and are followed by an interactive Q&A session with Dr. Dahake, which typically lasts about 30 minutes.



Webinar: Components of a Successful Noise Monitoring Program - June 16, 2021

Successful Noise Monitoring Program

AP Corp. is pleased to provide details for an upcoming webinar presented by OHD (Occupational Health Dynamics) and SVANTEK on implementing and operating a successful sound monitoring program.

In this 1-hour webinar, OHD's Certified Industrial Hygienist, Dr. Stephanie Lynch, will go over regulations, best practices, common downfalls, and much more when successfully building and enhancing your companies noise monitoring program. 

Stephanie Lynch is a Certified Occupational Hearing Conservationist and has over 15 years of Occupational Safety and Industrial Hygiene experience. Her doctoral dissertation research involved the collection of personal noise dosimetry and whole-body vibration measurements. Her research carries into the real world in manufacturing and military applications.

SVANTEK is the leading brand of sound and vibration meters for occupational health and safety, environmental noise, human vibration, and building vibration.

To register, visit this link (https://info.ohdusa.com/noisemonitoringwebinar). 

Dynisco Polyclean Fluidized Baths

Dynisco Polyclean Fluidized Baths

Cost-Effective, Fast, and Safe Way to Clean Various Plastic Processing Components

The Dynisco PolyClean Fluidized Temperature Baths come in three models and offer a cost-effective, fast, and safe way to clean various plastic processing components. PolyClean Fluidized Temperature Baths are applied in any polymer manufacturing or laboratory facility that needs minimal operator interaction and a low risk of harm to essential design requirements of a part during the cleaning process. 

The PolyClean 6L Fluidized Temperature Bath is ideal for cleaning small tooling from laboratory extruders or injection molding machines. 

The PolyClean 12L cleans extrusion tooling and other forms of hardware, forms parts, calibrates and tests various sensors and systems, heat treats metals and heats reactors, coils, flasks, and containers. 

The  26L PolyClean has similar functions and benefits to the PolyClean 12L, but its 26" deep basket allows it to clean larger components than the PolyClean 12L

For more information in New England and Upstate New York, contact AP Corp by calling (508) 351-6200 or visiting https://a-pcorp.com.