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ESI's Flange Tool Rentals and Sales

A diagram which shows the evolution of the Flange Spreader and the direction of forces when used.
A diagram which shows the evolution of the Flange Spreader the red line shows the direction of the forces applied. The first 2 examples show the forces in opposite direction causing damage or ejection. The step wedge redirects the force and avoids the dangers of ejection or breakage.

Flange Spreader Evolution

Methods & Functionality

Understanding the evolution of flange spreader technology is crucial to appreciating the benefits of modern advancements.

Flange spreading, a frequent necessity in servicing equipment or replacing gaskets, has historically posed significant risks to service personnel. The challenges faced by operators are manifold, especially considering the potential for shifted forces or increased intensity over time, which have led to numerous injuries and fatalities. In the realm of tool design, the pursuit of enhanced safety, simplified tasks, and greater efficiency stands paramount.

Enhancing safety and efficiency focuses on creating innovative tools that prioritize user safety, streamline complex processes, and boost productivity. By integrating advanced materials, ergonomic designs, and intelligent technology, these tools are engineered to reduce risks and facilitate ease of use. The goal is to empower users across various industries to achieve their objectives with precision and ease, fostering a safer and  more efficient working environment. 

Laws of Physics and How they Apply to your Tooling

Newton’s First Law states, “An object at rest remains at rest, and an object in motion remains in motion at constant velocity unless acted upon by an unbalanced force.”

Similarly, Newton’s Third Law asserts, “For every action, there is an equal and opposite reaction.” These principles highlight the importance of precision in force applications.

Newton’s laws of physics highlight the importance of precision when managing uncontrollable forces and stubborn flanges. Selecting the proper tools and methods is crucial to achieving safe and efficient operations.

Traditional Methods vs. Modernized Methods

Flange Spreader Comparative Analysis

Traditional Tools & Methods

The journey to achieving safe and efficient flange tooling has been extensive. It is rooted in a deep understanding of the physics governing the forces and energy involved. It reflects a sensitivity to the safety concerns of workers who must complete their tasks safely before returning home. It is a testament to the engineering prowess that has gone into designing and rigorously testing these devices until they reached perfection. Let’s explore some of the conventional methods used in various industries, along with the potential risks associated with them.

 

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Wooden Striking Wedge
Wooden Striking Wedge

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Metal Striking Wedge
Metal Striking Wedge

The Striking Wedge (Images Above): This method, despite its simplicity, carries inherent dangers. The use of a wooden or metal wedge, combined with a pry bar, can lead to serious injuries. The wedge can be forcefully ejected, and the pry bar can recoil, striking the worker.   Moreover, metal wedges can create sparks, posing an explosion risk in the presence of gas.

 

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Metal Banana Wedge
Metal Banana Wedge

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Banana Wedge
Banana Wedge

The Banana Wedge (Image Above): An advancement over the hammer-wedge, the Banana Wedge offered slight improvements but essentially presented the same geometrical force distribution and associated risks. 

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Mechanical Pop It - Prying Tool
Mechanical Pop It – Prying Tool

 

The Prying Tool, depicted in the image above and the middle illustration, remains popular due to its simplicity and affordability. However, its reliance on a slender metal tongue is a design flaw that makes it highly susceptible to breakage and ejection, given the directional forces at play during flange spreading. 

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Crowbar with slim edges
Crowbar with slim edges

 

The Crowbar have been employed for separating joints and prying things open, there are indeed limitations and risks associated with their use. Crowbars’ slender ends allow them to fit into tight spaces, making them useful for prying. However, this very slimness can also be a drawback. It means that the force applied is concentrated over a small area, which can lead to localized damage or deformation. They’re sometimes used beyond their intended capacity. Applying excessive force can result in injury or damage.

Set of Flange Alignment Pins
Set of Flange Alignment Pins

Flange alignment pins are straightforward and widely used tools for aligning flanged joints. They resemble bolts, tapering to a pointed end. While they offer a safer and more efficient alternative to crowbars, they have notable limitations that can lead to significant challenges. These tools are both time-consuming and labor-intensive to use. Additionally, each bolt hole size requires a specific corresponding pin, making transportation between tasks cumbersome. Commonly reported issues include gasket damage, leaks, and joint failures.

Modern Methods &Technology

The advancement of flange tooling technology has been a lifesaver, revolutionizing the service industry like never before. Firms dedicated to the safety of their workforce are on a constant quest for superior technologies and reliable partners. At ESI, we stand firm in our commitment to safety, refusing to endorse tools that compromise worker security. Let’s discuss how we can enhance the safety and efficiency of your team with our trusted solutions.

 

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SW9TM Mechanical Flange Spreader on a flange.
SW9TM Mechanical Flange Spreader on a flange.

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Viper-28M Hydraulic Twin Flange Spreader and Pump Kit
56 Ton Twin Hydraulic Flange Spreaders & Pump Kit
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The step wedge flange spreader is ingeniously designed to ensure safety and efficiency. Instead of exerting forces in opposing directions (north to south), it pushes the jaws from east to west. This clever arrangement eliminates the risk of incidents arising from conflicting forces.

Hydraulic Flange Spreader with Integrated Pump
The VIPER-28 Tons Hydraulic Flange Spreader with Integrated Pump
SWI2025TI on a Flange
SWI2025TI on a Flange

 The introduction of Step Wedge Flange Spreaders with Integral Pump, a brainchild of the now-defunct Equalizer International from the 1990s, has addressed nearly all the prevalent issues associated with flange spreading tasks. This technology is now widely recognized as the safest and most effective method for spreading flanges of any size and is gradually being adopted by new market players.

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Zero Gap Mechanical Flange Spreader SG11TM
Zero Gap Mechanical Flange Spreader SG11TM

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Hydraulic Zero Gap Flange Spreader
Hydraulic Zero Gap Flange Spreaders

 Perhaps the most revolutionary development was the bolt-hole spreading technology, also an Equalizer International innovation. This cutting-edge approach negates the need to insert any tools between the flange faces. Instead, it employs a set of collets within the bolt holes to latch onto the flanges, which are then separated using a clever lever or hydraulic cylinder mechanism.

 

Valve Removal Tool Kit safely removing a valve.
The Valve Removal Tool safely and efficiently remove valves from their flange connections by securely gripping the valves within the bolt holes of the flanges.
Spacer Change Out Mainenance with Zero Gap Flange Spreader with Short Collet Holder Kits
By modifying the arms or collet holders the zero gap tool can now spread flanges with small valves or large spacers.

The Valve Removal Tool is a specialized instrument designed for operators who need to perform valve replacements with utmost precision and control.

Flange Alignment tool with worker on a flange.
Hydraulic Flange Alignment tool on a flange.

This innovative design enables the tool to be placed into a specific bolt hole, with its wing extending to the neighboring flange. By harnessing gravitational forces, it realigns the pipes, turning a previously hazardous and labor-intensive task into a safer and more efficient process.

Available in both hydraulic and mechanical models, the tool accommodates joints of any size and significantly reduces the time required to complete the task.

BIC Magazine customer testimonial and artical on Zero Gap tools.
Customer Testimonial Published in BIC Magazine