Valve and Actuator Engineering


Home Page

Engineering Services

Typical Applications

Clients and Projects

Courses and Training

Articles and Technical Papers

Staff and Facilities

Quality Audit

Reconditioning Services

NDE/NTE Services

What’s new?


Contact Us




Reconditioning, Repair, and Maintenance

Reconditioning and repair

We provide reconditioning, repair, modifications and actuation services on any type, material, and make of valves. We do custom repair of valves – your plant or our shop - under stringent quality control. We can test any valve with steam, air/gas, or liquid in compliance with industry standards such as ASME, API, MSS, FCI, and Pressure Vessel Boiler Codes.

Relief & Safety relief valves – valves of all sizes and manufacturers

Gate, Globe & Check valves – 1" through 48" steel, iron, and steel. Class 125 through 4500

Tilting Disc Check valves – 2" through 36" steel or iron. Class 125 through 2500

Butterfly valves- 6" through 100" resilient seat or metal to metal seats

Control/Pressure regulating valves – 1/2" through 24". Class 125 through 2500

Plug valves – 1" through 24". Class 25 through 2500

Ball valves – 2" through 48". Class 125 through 2500

Strainer valves – 4" through 36". Single, Self-cleaning, or Duplex

Specialty valves – Cryogenic, High-temperature, Oxygen, Chlorine, NACE, etc.

Valve actuator and control system packages – fully engineered, mounted, tested, and installed.


Our repair facilities are certified and hold the VR stamp of approval from The National Board of Boiler & Pressure Vessel Inspectors.


SigmaTech is ready to partner with you to provide a comprehensive valve maintenance service on a long-term basis.


Return to top



SigmaTech  1339 Shotgun Road,  Sunrise, FL 33326
Phone: 636-346-7594  Fax: 636-349-7788 e-mail: