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What we do

Compressor Parts Manufacturer | KB Delta

By his early twenties he was already a reciprocating compressor expert - Boris Giourof 1954

Passion and Experience Makes all the Difference for a Compressor Parts Manufacturer

As a compressor parts manufacturer we pride ourselves on having 100% interchangeable OEM and aftermarket products. Our in-house injection molding machines, exclusive molds, metallic laser cutters, CNC machines, proprietary equipment and our attention to detail are the tools and qualities allowing KB Delta to provide durable, abrasion resistant and stress-free components. These are the characteristics together with our passion which gives us the ability to manufacture the best compressor valve parts in the industry and make KB Delta superior to our competitors.

Our history

KB Delta has become the premier compressor parts manufacturer and supplier of compressor valve parts for the natural gas, air, refrigeration and P.E.T. industries worldwide. KB Delta was established in 1982 by Boris Giourof, a recognized reliability specialist in the refinery and gas compressor industry.

After many years of servicing compressors, he became frustrated with poor OEM lead times and the inconsistent quality of parts. In the late 70s, Mr. Giourof developed new and innovative methods to manufacture compressor valve components. By 1981, he had established reliable fabricating processes and in 1982 launched KB Delta with the promise to manufacture high quality parts and ship them the same-day.

With more than 30 years of experience, KB Delta can proudly say we are one of the largest compressor parts manufacturers in North America. Our state-of-the-art equipment, years of engineering experience along with Boris’s dedication and commitment provides KB Delta the pleasure of assuring our compressor parts are OEM quality.

KB Delta backs all products with a
"Parts Performance Guarantee"
KB Delta Parts Performance Guarantee

Our Product Line

KB Delta manufactures the most durable and highest quality compressor valve repair parts in the industry. One factor which sets us apart as a compressor parts manufacturer is that we have the most complete product line in stock for valve refurbishment and repair.

Our Team

KB Delta Founder and President
- Boris Giourof

Founder and CEO/President

KB Delta Vice President
- George Giourof

Chief Operating Officer

KB Delta Managing Director
- Zoran Maslovaric

Chief Financial Officer

KB Delta Managing Director - Japan
- Mitsuaki Hirano

Managing Director - Japan

KB Delta Director of Business Development
- Vinod Bhan

Middle East - Representative

KB Delta Vice President, Operations & Technology
- Kevin Cain

Vice President, Operations & Technology

KB Delta Head of Manufacturing & Production
- Ivica Grozdic

Vice President Manufacturing & QC

our advantages

100% Interchangeable with OEM Parts

KB Delta's products are backed by over 100 years of combined engineering and compressor repair experience. This ensures KB Delta has a thorough understanding of each part's function and critical design features which results in parts that are well manufactured and perform as the OEM intended.

Highest Quality Metallic Plates and Rings

KB Delta's state-of-the-art laser cutting equipment guarantees precisely cut metallic plates. Our proprietary stress-relieving procedures have dramatically improved part quality when flatness is critical. KB Delta's finishing processes ensure that our metallic plates are optimized for maximum abrasion resistance and durability.

Durable Thermoplastic Plates and Rings

KB Delta's state-of-the-art in-house injection molding machines and proprietary molds ensure remarkable plate and ring durability. Our unique molds have been engineered to eliminate stress that is typically found with other vendor's parts. Simply put, our stress-free parts result in better sealing and improved valve plate lifespan and performance.

Our Mission Statement


The KB Delta team is focused on delivering the most advanced compressor OEM and Aftermarket technologies and innovations in its never-ending drive to achieve best-in-class results that exceed customer expectations.


We make real what matters, our expertise in compressor OEM and Aftermarket, innovative engineering and precision manufacturing drive us and what we create. Together we deliver value to our customers.

Quality Policy

At KB Delta, Quality is an integral part of our Business Principles. These principles guide our actions to deliver products and services that are safe, compliant and preferred by our customers. We are determined to:

-Foster a quality culture with the objective of developing, manufacturing and providing products and services with zero defects that are trusted and preferred by our customers.

-Comply with relevant laws and regulations as well as internal requirements.

-Continuously challenge our team to improve the company quality management systems, prevent quality incidents, and eliminate defects through the review of quality objectives and results.

Clients say

KB Delta has the most reliable parts in the industry. We have been very happy with KB Delta's quality and service as our compressor parts manufacturer. - Jürgen - Supply Chain Manager
I purchase from KB Delta on a weekly basis; their sales team is always a pleasure to work with. KB Delta gives me that extra special service. We have been very pleased with their parts and their service. - John - Parts Purchasing Agent
We only use the best components because the internal parts of the compressor are so critical. For this reason we only use KB Delta parts. - Sergei - Field Engineer
KB Delta’s sales team is friendly and goes the extra mile to help me satisfy my parts list requirements. They are like an unseen partner that attributes to our company’s success and they take the edge off of a demanding job. - Paul - Parts Manager
  • Metallic Plates

    KB Delta manufactures and stocks a complete range of metallic compressor valve plates and rings for the natural gas, refrigeration and P.E.T. industries.

  • Thermoplastic Plates

    Our specialized precision tooling and proprietary lapping process gives our customers the highest quality thermoplastic plates and rings in the industry.

  • Springs

    We manufacture our own springs and stock over 2 million springs for a variety of OEM spring styles, forms and materials.

  • Peripheral Valve Internals

    KB Delta offers one of the most complete lines of valve internals in the industry. All of our parts are manufactured to OEM Standards in performance and efficiency.

  • Complete Valve Repair Kits

    KB Delta offers a full line of valve repair kits for all the major reciprocating compressor manufacturers.

  • P.E.T. Compressor Parts

    KB Delta specializes in manufacturing compressor valve parts for high pressure air compressors used in the P.E.T. plastic bottle manufacturing industry.

  • Complete Valve Assemblies

    KB Delta manufactures and stocks a complete line of complete valve assemblies for air and process gas compressors and the PET industries. We also carry valve seats and guards.

  • Resources

    KB Delta resource page contains many resources to help you identify parts, request parts and find what material works best for your compressors environment.

  • Contact

    Contact KB Delta today to see how we can get your compressor up and running as soon as possible. We are also available if you have any questions.

Industries we serve

Natural Gas Industry

The processing and refining of Natural Gas into a marketable products, by separating gas into pipeline-quality natural gas and a stream of mixed natural gas liquids and the transportation of natural gas to through a series of reciprocating compressor stations and pipes, and from there to end users.

Blow Molding Industry

This industry manufactures blow molding machinery. Injection stretch blow molding process has two main different methods, a single-stage and two-stage process; these are the methods by which hollow plastic parts are formed.

Medical Technology Industry

The medical technology industry is an important part of the healthcare sector. It includes most medical devices which aid the prevention, diagnosis and treatment of diseases and illnesses. Established centers of this industry include the United States and Western Europe.