PSI is committed to meeting or exceeding the needs of our customers.  We will supply products and services consistently conforming to our customers requirements regarding design, manufacturing, performance, and reliability.


Continuous quality improvement is the responsibility of every employee and management provides the necessary leadership, training, and tools to properly support this effort. PSI's quality pledge is to "meet or exceed the needs of our customers". Our quality system is not a program; it's a process that is planned for, continuously improved, and managed by each employee. 

Our commitment to the highest levels of manufacturing excellence begins with:

  • An Employee Education Program
  • Continuously Improves with the Methodology of Six-Sigma
  • Focuses on Adding Value to the Customer through Implementation of Lean Principles

Employee Education

PSI employees educational program is comprised of 8 separate classes and is coordinated through the local community college. Core emphasis is placed on:

  • Fundamentals of Quality
  • Measuring Techniques
  • Mathematics
  • Leadership
  • Teamwork
  • Change


"Six-Sigma" is a disciplined methodology that focuses all products, processes, and services towards perfection---zero defects. PSI employs 1 Master Black Belt, 2 Black Belts, and 1 Green Belt. Six Sigma tools are applied to a variety of projects where the methodology is concentrated on 5 activities:

  • Defining
  • Measuring
  • Analyzing
  • Improving
  • Controlling

Six Sigma projects have and continue to increase the quality, speed, and efficiency of our operations.


Operational Excellence

The Operational Excellence program at Crane Co. is designed to implement Lean principles through all business units. It is built on the foundation of our Six-Sigma program, but it extends beyond Six-Sigma into a full Lean initiative. The goal is simple: Focus on adding value to our customers by eliminating non-value-added activities. 


A Six Sigma Company that seeks Operational Excellence has:

  • World-Class Quality
  • Only 3.4 Defects per Million Opportunities
  • Is a Successful Business
  • Exceeds their Customer's Expectations

In addition, PSI quality control consist of testing and inspection procedures to assure that all our finished products conform to full requirements and specifications. 

Raw Material

  • Bulk Density

  • Specific Gravity

  • Tensile Strength

  • % Elongation

  • Particle Size Distribution


Daily Audits

  • Dimensional Checks

  • Tensile & Elongation of Finished Liner

  • Mechanical Roll Testing of Finished Liner

  • Light Candeling of Finished Liner


Final Inspection

  • Dimensional Checks - Flare Diameters

  • Visual Inspection of Finished Liner

  • Electrostatic Spark Test of Finished Line


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