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9 Item(s)

  • 07.02.19 Posted in Quick Reference Guides By Margie Moschetti

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  • 14.06.18 Posted in Quick Reference Guides By Margie Moschetti

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  • 29.05.18 Posted in Quick Reference Guides By Margie Moschetti

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  • 08.05.18 Posted in Quick Reference Guides By Margie Moschetti



    Conveyor belts and their accompanying machinery present a number of dangers to those working with them.  The types of accidents that can occur for workers are numerous.  A conveyor belt is designed to keep moving and there are many parts that make up this machine any of which could fail at any time.  Injuries that are common include burns and abrasions, bone fractures, amputations and lost limbs and fingers, cuts and scrapes and the list goes on. 


    The following is a basic list of Safety Best Practices when working on and around conveyor systems.  If you would like to know more about Conveyor Safety, a good resource is the “CEMA – Conveyor Equipment Manufacturers Association”.  They have publications, directories and a whole host of safety guidelines for many industries and types of conveyors.  We have included additional resources at the end of this article.  




    No one should sit, stand, climb, walk on a conveyor, EVER.  This should be obvious, but it is one of the most common causes of injuries involving conveyors.  




    Overloading conveyor systems can lead to overheating, malfunction, falling goods, etc.  The safe operating capacity of any conveyor should be explained to workers and enforced.  




    Conveyor systems contain a great deal of moving parts.  Gears, chains and belts are normally found on conveyors all of which can be hazardous.  Conveyors should not be operated without having covers and guards in place to keep clothing and extremities out of its working parts.




    Even with guards in place, conveyors are capable of catching loose extremities, clothing and long hair resulting in severe injuries or even death.  Long hair should be tied back or under a cap; clothing should not be baggy, ties should be tucked in, loose jewelry should be removed, hands should only touch materials on the conveyor when necessary, NEVER the conveyor itself.




    In the event there is an accident or emergency, workers need to know exactly how to stop the conveyor and where they need to go to do it.  Controls should be easy to read and use, easily accessible, easily identifiable and all workers should be trained in their proper use. 




    Conveyors and their accessories should have accurate up-to-date warning labels ensuring workers are aware of particular hazards and best safety practices.  These labels must be where workers can easily see and read them.  Two of the most hazardous components of a conveyor system are the motors and rollers.  They should be well labeled with safety information.  




    Whenever your conveyor system needs maintenance or repair, only trained and fully qualified repair people should be allowed to do so.  Proper lockout/tagout procedures should be followed.  All power sources to the conveyor including electrical, hydraulic, air and gravity should be blocked, disengaged or otherwise locked out.  


    The above Best Practices for Conveyor System Safety should be initiated, but the most important goal is to establish a procedure and safety and maintenance guidelines that pertain to your specific system and facility.   Written guidelines posted on the wall is merely a beginning to becoming safety conscious around your conveyor systems.  Train and initiate today!!


    *Whenever in doubt, consult with the following:

    Conveyor Equipment Manufacturer’s Association – www.cemanet.org

    U.S. Occupational Safety & Health Administration – www.osha.gov

    Canadian Centre for Occupational Health & Safety – www.ccohs.ca

  • 25.04.18 Posted in Pumps Quick Reference Guides By Margie Moschetti

    Head – is the maximum height that the pump can achieve pumping against gravity. 
    Rate of Flow – the total volume throughput per unit of time at suction conditions.  Capacity is another term.
    Net Positive Suction Head (NPSH) – the minimum pressure required at the suction port of the pump to keep the pump from cavitating. 
    Impeller – The bladed member of a rotating assembly of the pump which imparts the principal force to the liquid pumped.
    Casing – the portion of the pump that includes the impeller chamber and volute diffuser.
    Volute – is the casing that receives the fluid being pumped by the impeller, slowing down the fluid’s rate of flow.  A volute is a curved funnel that increases in area as it approaches the discharge port. 
    Diffuser – A set of stationary vanes that surround the impeller.  The purpose of the diffuser is to increase the efficiency in the pump by allowing more gradual expansion and less turbulent area for the liquid to reduce in velocity.
    Inducer – A single-stage axial flow helix installed in the suction eye of an impeller to lower the NPSH.
    Centrifugal Pump – produce a head and a flow by increasing the velocity of the liquid through the pump with the help of the rotating vane impeller.  Centrifugal pumps include radial, axial and mixed flow units.  All centrifugal pumps include a shaft-driven impeller that rotates inside a casing.  Liquid flows into the suction inlet of the casing and is thrown to the outside of the casing, then exits the discharge port.  The velocity imparted to the liquid by the impeller is converted to pressure energy or “head”. 
    Positive Displacement Pumps – draws fluid into a compartment at the inlet and moves it to an outlet for discharge, most typically using a rotary, reciprocating, or diaphragm method to move fluid.  PD pumps will move fluid at the same speed regardless of the pressure on the inlet end whereas centrifugal pumps will not.

  • 15.02.18 Posted in Valves Quick Reference Guides By Margie Moschetti
    • Mount the valve in a vertical position so that the valve body is self-draining.  If a body drain port is provided, make sure it is open when required by the ASME Code.  Do not plug any bonnet vent openings.  The inlet piping should be as short as possible, with no elbows, and equal to or greater than the size of the pressure relief valve inlet connection.  This will help to limit the inlet pressure drop to 3% or less when the valve is relieving.


    • When discharge piping is connected to the valve outlet, make sure it is self-draining when a body drain port is not used.  The valve should not be connected to any discharge pipe that contains pressure before the valve opens or to any pipe where the pressure build-up is greater than 10% of the set pressure when the valve is open and relieving.


    • Discharge piping, other than a short tailpipe, must be supported by something other than the valve.  For steam service, a drip pan elbow or flexible connection between the valve and the pipe should be used to prevent excessive pipe stress, due to thermal expansion, from being imposed on the valve body.


    • For threaded valves, apply a small amount of pipe thread sealing compound to external threads only.  DO NOT put any sealing compound on the first thread or any internal threads.  To do so may cause the sealing compound to enter the valve and cause seat leakage.  Use wrench flats provided to tighten the valve to the connecting pipe.  Do not use the valve body or bonnet and do not over-tighten.  To do so may cause valve leakage.  


    • For flanged valves, use new gaskets and tighten the mounting studs evenly.

    Contact us to take advantage of our resetting and repair services!



  • 06.09.17 Posted in Quick Reference Guides By Margie Moschetti


    The cellphone has evolved from just a gadget used to make calls and check emails into a device that can transform the way maintenance is performed.  Many plants are already using computerized maintenance management systems (CMMS) software on their phones or tablets to allow technicians the opportunity to update work orders as they perform each task, eliminating the need to take notes and re-enter them later.

    With all of the new mobile technologies, the smartphone could become the new wrench in the toolbox of the future.  There are many apps and features available to transform your phone into a must-have gadget.  

    The following is a list of 12 features and apps that we have brainstormed along with one of the major CMMS software providers.  Applications may not be precise, but perhaps will provide ideas of what you can research and incorporate into your “tool box”.    



    Use the camera function to upload images and videos.  Many times, a repair or application can be difficult to describe so images and videos are a great way to document repairs.  Send that video to others and receive immediate response on the part, repair, etc.  If the video and/or picture is downloaded, it can be reviewed at a later date when that issue arises again.  



    Many of the modern smartphones come with built-in voice recognition software such as Apple’s SIRI.  Rather than using a small keyboard, just dictate the repair into the built-in microphone and include it on the work order.  



    Search your files for all of the vendors and/or service companies that have created their own QR code for immediate response.  This can save time and eliminate the tedious task of thumbing through long lists of items.  Some manufacturing companies have created bar codes for various pieces of equipment for inventorying purposes or log an issue against a particular asset.  Take time to load Control Specialties’ QR Code into your iPhone go directly to our web site for technical information and products.  



    There are some smartphones that are enabled with (NFC) near field communications that can be used to identify equipment through RFID tags.  Here again, RFID tags can placed on equipment for numerous applications such proof of presence for safety related assignments, etc.



    Many smartphones come equipped with maps and GPS technology.  Technicians can use satellites to pinpoint coordinates of their current location enabling them to locate assets without searching through reams of outdated maps.



    The majority of smartphones come equipped with a flashlight and if not, there are several flashlight apps available.  What ordinary flashlight provides a camera, voice recognition, etc. in one device!



    There are over 58,000 individual unit conversions that are immediately available and many are free.  Metric conversion charts, math calculators, language apps, and thousands more.



    There are a number of apps that turn the camera flash into a stroboscope.  This capability can be used to calculate the running speed of belts and motors as well as balancing and verifying alignment by checking for looseness.  



    Many modern smartphones have built-in accelerometers or gyroscopes that can be used for vibration analysis on pumps and motors.  Units such as the SKFTKSA11 when used with your iPhone provide high resolution graphics, etc.  https://www.control-specialties.com/skf-tksa11-shaft-alignment-tool.html



    There are many apps that use the embedded magnetic sensors in smartphones to turn it into an electromagnetic field meter.  Ideal application for simple tasks such as checking for power lines behind walls or equipment.



    The magnetic field sensors in your smartphone can also be used to detect metal objects.  Metal detector apps can be used for locating iron pipes in the ground, studs in walls, etc.



    There are apps available to measure the level of sound in decibels converting your iPhone into a basic sound pressure meter.  These apps with your iPhone are reliable and accurate enough for non-critical applications.  

  • 20.02.17 Posted in Quick Reference Guides By Margie Moschetti

    There are many different types of flanges found worldwide.  Most common include ASA, ANSI, and ASME (USA) PN/DIN (European), BS10 (British/Australian), and JIS/KS (Japanese/Korean).  These can be interchangeable as most local standards have been aligned to ISO standards.  However, some local standards are different.  For example an ANSI/ASME 150 flange will not mate with an ANSI/ASME 300.  

    These pressure classes have different pressure and temperature ratings for different materials.  The ANSI/ASME pressure classes for Flat-Face flanges are 125# and 250#.  The classes for ring-joint, tongue & groove and raised-face flanges are 150#, 300#, 600#, 900#, 1500# and 2500#.  

    The flange faces are also made to standard dimensions and are typically flat faced, raised face, tongue and groove, or ring joint.  

    Flange designs are available as weld neck, slip-on, lap joint, socket weld, threaded and blind.  

    Pipe flanges that are made to standards written by ASME B16.5 or ASME B16.47 are made from forged materials and machined surfaces.  B16.5 refers to nominal pipe sizes from ½” to 24”.  B16.47 covers NPS from 26” – 60”.  

    The Pressure classes do not correspond to maximum pressures in psi.  Instead, the maximum pressure is dependent upon the material of the flange and the temperature.  For example, the maximum pressure for a Class 150 flange is 285 psi and for a Class 300 is 740 psi.  

    Flanges always require bolt and nut sets and are generally specified by the standards.  

    Flanges are typically manufactured from carbon steel for piping applications.  However, there are many industry standard flanges that in some circumstances require different materials of construction.

    Visual examples of the various types of flanges:

     Image result for images of types of flanges



  • 21.07.16 Posted in Steam Traps Quick Reference Guides By Margie Moschetti
    A steam trap, in a simple definition, is an automatic valve which will vent non-condensables and condensate from a piece of steam consuming equipment and stop the loss of live steam as it enters the steam trap. Steam traps started to appear in use about 1900 and replaced the prior device which was typically a pinched piece of tubing or a cracked valve adjusted by a pipefitter. As you can imagine, this approach was neither efficient, effective, nor cost effective. Steam trap development started with float or bucket operated valves and then evolved into many other types.Read More

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