Meet deadlines with confidence

 

At Kirksey, our company culture and responsive team of experts allow us to expedite orders and meet tight deadlines with reliable solutions. We offer a comprehensive range of valve modification services for both cast steel and forged steel, ensuring the highest standards of quality and efficiency.

 

Valve modification of a 24-inch,150-pound gate valve extending the bonnet.
A Kirksey team member modifies a 24-inch, 150-pound gate valve by extending the bonnet. This valve modification, featuring a longer stem, ensures optimal performance even in sub-zero conditions.

Industrial Valve Modification Services

Valve Modifications

Cast Steel

We excel in cast steel modifications due to our extensive experience and commitment to precision. Our services include:

  • Trim Changes: 316 SS, Monel, A-20, HF, Bronze, Hastelloy C
  • End Conversions: RTJ from RF, RF from RTJ, Flat Face, Machine Weld End to Smaller Schedule, Build Up Bore to Larger Schedule, Modify Flanged to BW Ends
  • Extended Bonnets: Cryogenic Gas Column
  • Drill & Tap Body & Bonnet: By-Pass Installation, Handwheel Extensions
  • Other Services: Globes to Stop Checks, Soft Disc Inserts, Gear Operator Supply and Mounting, Outside Lever & Weight, Bleed & Vent Holes, Packing & Gasket Changes, NACE, Oxygen & Chlorine Cleaning
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Valve Modifications

Forged Steel (API 602)

Our expertise in forged steel modifications ensures high-performance and durability. Our services include:

  • Trim Changes: 316 SS, HF, Monel, A-20, Hastelloy C
  • Valve Conversions: Globes to Piston Checks, Globes to Ball Checks, Gates to Swing Checks, Piston Checks to Ball Checks
  • End Conversions: Threaded to Socket Weld, Extended Body (O-Let) to Male SW or Male Thread, Male Thread from Male SW, Reduce Valve Size (Make full Port), Extended Bonnets (Cryogenic Gas Columns), Deep Stuffing Box, Packing & Gasket Changes, Soft Disc Inserts, Bolted to Welded Bonnet, Welding on Flanges – Class 150 – 1500, Buttweld end from Threaded, SW, or Flanged, RTJ from RF, RF from RTJ, Flat Face
  • Other Services: NACE, Oxygen & Chlorine Cleaning
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Valve modification of 12-inch 600 Velan Coker valves
During a hot turnaround, Kirksey Machine expertly modified 12-inch 600 Velan Coker valves. We handle thousands of valves like these in refinery operations, ensuring peak performance and reliability.
Valve modification of 12-inch 1500 gate valve trim change with precise modifications using a hydraulic torque wrench
An example of a completed a 12-inch 1500 gate valve trim change with precise modifications using a hydraulic torque wrench, tailored to meet specific requirements with a focus on quality and safety assurance.
High head modification adding black lube lines
Our team completed a high head modification, expertly adding black lube lines for enhanced functionality and durability. This custom enhancement ensures optimal performance in demanding conditions.
A modified butterfly valve by adding a gear extension. A successfully modified butterfly valve by adding a gear extension. This custom solution allows for seamless operation from a higher position, demonstrating our ability to help solve complex challenges.

Why Choose Kirksey?

Many of our team members began their careers on the shop floor, mastering the machines and techniques before advancing to management roles. This deep, practical knowledge ensures that we understand the urgency of your needs and can provide immediate, reliable solutions. While other companies may offer machinists, we offer comprehensive expertise—with CONFIDENCE in every step.

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Ready to experience the Kirksey Machine difference? Contact us today to learn more about our custom valve fabrication solutions and how we can help you achieve your goals.