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Author Archives: Ryan Potvin

  1. Changing Coning Blades and Die Chasers on the Coning & Threading Machines

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    Changing Coning Blades and Die Chasers on the Coning & Threading Machines

    Since 2011,  MAXPRO Technologies has been building  patented, easy-to-operate coning and threading machines.  Coned and threaded connections are a safe and reliable option for medium, high, and ultra-high pressure tubing.  Follow these instructions for changing the coning blades and die chasers. Click here to watch a video.  

    Things You’ll Need

    • Screwdriver or rod
    • Die chasers
    • Coning blades
    • Tommy bar (supplied with the machine)
    • Setting tool (Supplied in the tool kit)

    Coning Blade Installation 

    1.  Two coning blades are required for each size and pressure, ¼” through ¾”, and must be identical.  
    2.  One or two coning blades may be used for 1” OD tubing, 15,200 psi or 22,500 psi pressure rated tubing.  Two identical blade operation is standard for 1” OD tubing.  One blade may be used, especially if paired with optional 1” deburring blade for the ID of the tube.
    3.  One coning blade and one ID deburring blade is used for coning 1½” OD 15,200 psig tubing.
    4.  Countersunk hole is on the top blade surface to accept a #8-32 flat head cap screw.
    5.  Check to make sure there are no chips in the blade pocket on the Tool Holder.
    6.  Set each coning blade Part # side up  in the pocket and tighten firmly with 3/32” Allen wrench (provided).

     Thread Chaser Installation

    1. Access Die Head by sliding the carriage with the lever handle into the CONE position and lift the plastic shield.

    2. Trip head into open position

    Thread Chaser Installation

    3. Open Head for Chaser Insertion

    Chaser Access

    4. Inserting Chasers

    Inserting Die Chasers

    5. Closing the Die Head

    Coning Pitch Adjustment 

    1. With the Die Head in the closed, ready to thread position, check for the proper thread diameter by attempting to screw in a known good threaded tube, or, alternatively use a rod with an outside diameter equal to the minor thread diameter. If the test tube does not thread in, or threads in too tight or loose, adjusting ring binding (set) screw (5/32″ Allen wrench provided) on the adjusting ring must be loosened and the adjusting ring rotated with a 5/16″ diameter pin (provided) inserted into a hold on the adjusting ring.

    Loosen adjusting ring binding screw using provided hex key

    2. There are two marks on the adjusting ring. Rotating the ring towards “S” makes the thread diameter smaller (moving ring CCW as you’re facing the Die Head). Rotating the ring towards “L” makes the thread diameter larger (moving the ring CW as you’re facing the Die Head).

    By means of a pin inserted into the hold of the adjusting ring, turn until desired thread size is obtained.

    3. Check for proper thread diameter using matching size minor thread setup gauge (provided with complete tooling kits). Care should be taken not to force the chasers onto the setup gauge. Alternatively, a known good threaded tube can be screwed into the chasers. Ensure the tube does not thread in too tightly or loosely. Further minor adjustments necessary to obtain correct size settings are achieved by repeating steps 1 and 2.

    4. Re-tighten the adjusting ring binding (set) screw on the adjusting ring.

    5. A trial cone and thread should be made on a scrap piece of tubing (or excessively long tube) to confirm proper threading sizing. Threading a collar onto the tubing smoothly with little clearance will confirm an acceptable thread diameter.


    MAXPRO Field Services, Installation, and Repair

    MAXPRO’s Maximator coning and threading machines are designed for easy operation and maintenance.   

    Please contact us if  you need help maintaining any Maxpro product.  We offer phone support, in-house repair services or service at your facility.   Contact us today to learn more about our capabilities.  


  2. Data Logger

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    MAXPRO’s Data Logger

    Data Logger

    I have been in the oil and gas testing industry for over 24 years and found that one of the essential elements of testing is collecting data to create a snapshot of what occurred during the testing process. Testing is crucial when proving new designs and determining if component can withstand the elements before being put into service. These elements could include axial loading in tension/compression, applied bending, torsion, internal/external pressure, and elevated/sub-zero temperatures in tubular type products. Testing can introduce all these elements independently or in a combination of two or more simultaneously. The applications of simulated environments are pretty much endless. Proper equipment is vital to retrieve the best results to create a snapshot of everything that occurred during testing. (more…)

  3. Coning & Threading of High-Pressure Tubing

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    Coning & Threading of High-Pressure Tubing

    In medium- and high-pressure systems, coned and threaded tubing connections ensure safety and reliability.

    Tools Required

    • Bottle of cutting oil
    • Collet
    • Collet wrench
    • Coning blades (and spare)
    • Coning tool
    • Deburring tool
    • Threading tool 
    • Tube holder
    •  Optional Complete Coning and Threading Kit includes everything you need!

    How to Change the Coning Blades in the Coning Tool

    To begin, the coning blades need to be properly installed in the coning tool. Locate the part numbers etched on one side of the blade and place the blade in the coning tool with the numbers facing outward. Once the blade is correctly installed, tighten the set screws on either side of the tool to secure the blade in place


    Now that the tool has been prepped, the following steps will guide you through the coning and threading process:

    1. Insert the tube into the tube holder until it can be seen at the top of the viewing window.
    2. Place the flat end of the tube holder into a vice and tighten the collet nut to secure it in place.
    3. Cover the coning blades in cutting oil and install the coning tool onto the side of the tube holder opposite the tube by turning the knurled nut.
    4. Begin rapidly turning the handle of the coning tool while gradually turning the knurled nut to drive the blades into the cone on the end of the tube.
    5. Remove the coning tool by loosening the knurled nut.
    6. Loosen the collet nut and move the tube further into the tube holder and tighten it to allow you to hold the tube during the threading process.
    7. To start the first thread, install the die holder onto the end of the tube and firmly press down.
    8. Add cutting oil into the die holder.
    9. To obtain the appropriate amount of thread for a ¼” tube, turn the die holder approximately 12 times.
    10. Every few turns, reverse the die holder to break off any chips.
    11. The tube now has a cone and left-hand thread and can be removed from the die holder and the tube holder.
    12. Install the gland and collar on the tube with 1 to 2 threads visible above the collar.
    13. Lubricate the threads on the gland to prevent them from galling when the stainless parts are joined. 
    14. Install the tube into the fitting by hand tightening it.
    15. Place the assembly into the vice to torque the fitting using the appropriate sized torque wrench for your tubing.

    MAXPRO Field Services, Installation, & Repair

    Since 1995, MAXPRO Technologies has provided industry-leading high-pressure solutions. With a team of highly qualified engineers and technicians, we install every piece of equipment sold to ensure accuracy and optimal performance. We provide support for our products throughout their life cycle and offer field and in-house repair to allow customers to get the most out of their purchase. To learn more about our coning and threading services and equipment, contact us today.


  4. Main Types of High Pressure Valves & When to Use Them

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    Main Types of High Pressure Valves & When to Use Them

    High pressure valves are used to regulate the flow of liquids, gases and other media through tubing, pipes, tanks, and other containers. There are several valve types to choose from, including some that provide on/off control.  The type of high pressure valve you choose depends on the specific requirements of your application. Here, we will discuss the various types of valves and the key factors you should consider when selecting a valve for your application.  

    Features to Consider When Choosing a Valve 

    There are several things to consider when selecting a valve, including:


    • Media Type. When determining the best valve for your needs, it is important to consider your process.   For example, Is the fluid corrosive?  Are you using gas? 
    • Application. It’s crucial to select the correct valve sizing based on your application’s requirements. It’s also important to consider the environment where the valve will operate.   Understanding conditions such as temperature, flow rate, and pressure will help you determine the best valve option. 
    • Valve Function. Consider how you need the valve to function and whether it will be used for on/off control or flow control  in a system. It is also important to determine if the valve you require will be operated by hand or via an actuator for remote control applications.     
    • Actuation. Consider whether the valve should be “air to close–normally open” or “air to open–normally closed”.    

    Types of Valves

    At Maxpro, we carry several valve styles to suit many applications:  


    Air to Close, Normally Open Valve Actuators

    Air to close valves are held in the open position by the valve spring and require air pressure to move them into the closed position. Choose this valve if you want to vent pressure in the line if you were to lose power.


    Air to Open, Normally Closed Valve Actuators

    Air to open valves are held in the closed position by the valve spring and require air pressure to move them into the open position. Choose this valve to maintain pressure in the line during a power failure.  


    Ball Valves

    Maximator ball valves are capable of handling liquids and gases up to 21,000 psi at room temperature.  Ball valves have larger orifices resulting in increased flow.  Choose this valve for your control panel or other hydraulic system if flow is the most important factor.  

    Block and Bleed Valves

    Maximator block and bleed valves are compact and easy to use.  Block and bleed valves are two-stem manifold valves designed for blocking, bleeding and calibrating  pressure gauges and transmitters up to 22,500 psi @ room temperature. 


    Cryogenic Valves

    Maximator cryogenic needle valves are designed to work with  line temperatures to -423°F.    For example:  This valve can be used  on high pressure nitrogen injection trucks and skids to control the flow of nitrogen.  


    Electric Flow Control Valves

    Electric flow control valves use an electric control signal to meter small flow rates with repeatable and precise control for liquids and gases. These valves are for metering only and are not ideal for complete shutoff applications.  One example of an application would be simulating a down hole environment by pressurizing or venting a large volume vessel with a controlled pressure ramp rate.  


    High Pressure Adjustable Relief Valves

    Maxpro proportional pressure relief valves are designed to protect systems and components from over-pressure for both gas and liquid applications.  The unique poppet design allows for chatter free pressure release and excellent deadband pressure control.  


    High Pressure Check Valves

    High pressure check valves permit fluid flow in one direction only, thus preventing backflow in high pressure applications.


    High Pressure Needle Valves

    Maximator high pressure needle valves  provide on/off control of fluids and gases.  These  valves are used in conjunction with high pressure fittings and tubing to plumb systems to 101,000 psi.  


    High Pressure Pipe Valves

    Maximator pipe valves with metal to metal seats provide on/off control for fluids and gases and are rated up to 15,200 psi.  


    Manifold Blocks

     A manifold is a component used to simultaneously connect multiple parts into a system so all parts are exposed to the same circuit conditions (such as media or pressure).  A manifold is used in place of multiple connections between components.   For example:  A manifold can be used  to hydrostatically test multiple parts at the same time.


    Micro-Metering Valves

    Micro-metering valves are designed for metering small flow rates with precise, repeatable control for both gases and liquids.   


    MAXPRO Technologies’ High Pressure Valves

    Since 2007, MAXPRO® Technologies has provided top-quality high pressure valve solutions for customers across a diverse range of industries. Our high pressure valves offer a variety of  body pattern options, metal-to-metal seat, non-rotating stem design, and performance in a wide range of temperatures. Our products meet the highest industry standards and can be used in various demanding applications, including food processing, oil and gas, waterjet, and chemical processing.


    When you partner with MAXPRO, we will work with you to determine the best possible solution for your high pressure valve needs. To learn more about our products and capabilities, check out our High Pressure Valve catalog or contact us today.


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