Extension
Extension springs are closed-coiled helical springs that extend under a pulling force. There are a variety of extension spring types!
- Conical
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- Concave
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- Convex
Compression
A compression spring is a type of mechanical spring designed to resist compressive forces.
- Conical
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- Concave
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- Convex
Flat
A flat spring is a type of spring made from a flat, thin piece of metal or composite material.
- Conical
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- Concave
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- Convex
Torsion
A torsion spring is a type of helical spring that works by twisting its ends along its axis to exert a rotational or torque force.
- Conical
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- Concave
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- Convex
Assemblies
Spring Assemblies are mechanical systems that incorporate springs to perform specific functions such as absorbing shock, maintaining tension, storing energy, or providing flexibility.
- Conical
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- Concave
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- Convex
Wire Forms
Wire forms are custom-shaped wire components designed for a wide variety of applications.
- Conical
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- Concave
- -
- Convex
Looking for something custom?
Torsion springs are helical springs that exert a torque or rotary force and are subject to bending stresses.
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custom catalyst-retaining springs by katy spring
catalyst-retaining springs
Applications of Catalyst-Retaining Springs
Reactors: In chemical reactors, catalyst-retaining springs keep the catalyst bed stable, ensuring uniform flow of reactants and consistent reaction rates.
Environmental Control Systems: Springs are used to secure catalysts that break down pollutants in air or water purification systems.
Manufacturing: Springs hold catalysts in place within manufacturing equipment, ensuring they are effective in processes like polymerization, cracking, or synthesis.
Benefit of Using Catalyst-Retaining Springs
Optimal Catalyst Positioning: Ensures that the catalyst is properly positioned for maximum contact with reactants, enhancing the efficiency of the chemical reactions.
Uniform Distribution: Prevents channeling or uneven flow, leading to more consistent and predictable outcomes.
What our customers say
“ Definitively I will put Katy Spring in our preferred list of spring supplier, excellence and fast quoting service.”

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Héctor G.
Precision Tools
“ Thank you for the quick response given the circumstances!!”

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Joe H.
Oil Rig Design Engineer
“ Your pricing has been good and I know engineering likes your springs. Looking good!”

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Marsha R
Engineered Valves
quality is our guarantee
manufacturing quality since ‘99
At Katy Spring, we take the little things seriously. From the design and engineering quality to the way you feel through the entire process, we want to be your best manufacturer across the board. That’s how we do business.
Detailed Quoting & Estimates
Once Katy Spring receives your files and specifications we will begin working on your custom quote.
Thorough Quality Control Checks
Once Katy Spring receives your files and specifications we will begin working on your custom quote.
Trackable Schedules & Deliveries
Once Katy Spring receives your files and specifications we will begin working on your custom quote.
24/7 Production Support
Once Katy Spring receives your files and specifications we will begin working on your custom quote.
types and accessories of spring catalyst-retaining springs
- Catalyst Spring Gang Assembly - The catalyst spring “gang” assembly shown below provides more depth accuracy, time-saving insertion and removal, and greatly reduces inspection time.
- Long-Stem Catalyst Spring - Long-stem catalyst springs are typically used in deep tube sheets. The crossbar at the bottom of the stem allows for faster inspection time.
- Catalyst-Retaining Spring - Catalyst-Retaining springs are springs that do not require any assembly. These springs are the most economically-produced springs but do not offer the multiple insertion and quick inspection benefits that the assemblies offer.
- Heavy-Duty Catalyst Spring - Heavy-duty catalyst springs are used to support heavier catalyst loading requirements.
- Large-Tube Catalyst Retaining Springs - Katy Spring offers catalyst-retaining springs for large tubes, up to 3” ID.
- Short-Stem Catalyst Spring - Short-stem catalyst springs are typically used in shallow tube sheets. The crossbar at the bottom of the stem allows for faster inspection time.In addition, the end configuration allows for hand insertion and retraction.
- Inlay Assemblies - Inlay assemblies are typically used in acrylic manufacturing applications. Thermocouple Catalyst Spring Gang Assembly
- Insertion and Retraction Tools - Katy Spring can assist with the design and manufacturing of custom insertion and retraction tools. These tools can be shipped with the springs to be inserted, saving time in searching for tools used for previous turnarounds.
- Twistie or Spirals - Twisties or spirals, typically used for deep tube sheets, can be supplied in various lengths and in various “spirals-per-foot” configurations. Catalyst spring can be added to the end.
- Fish-Tape Wire - Fish-tape wire provided in rolls like the one shown below, can be cut to almost any length and supplied and many different wire diameters.
- Punch Wires - Punch wires are can be made up to 45 feet long with custom-end configurations that can be adapted for different types of punch-wire equipment. Punch wires are typically shipped in custom-made pipes to ensure safe packaging.
other custom springs:
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