Sigma Valves Company Profile


Sigma Valves began producing stainless steel pneumatic and hydraulic control valves dedicated specifically for the oil and gas industry over forty years ago. Sigma Valves originated as a company dedicated to valves specifically designed for safety system automation in offshore environments, not industrial valves converted for use in the oil/gas industry. These valves offer more robust design features and dependability than those found in smaller industrial-type valves.

Our current range of products includes: manual reset relays, quick exhausts, fusible valves, check valves, LPO kits for actuation, Hydraulic interface valves, pressure sensors, regulator, accumulators and other components for control system fabrication.

Sigma Valves CNC lathe machine

Sigma Valves, offering lower-cost pressure sensor and relay systems, has become a leading supplier to the shale gas market in North America.

Sigma Valves recently moved its main location and manufacturing facility to a new 22,000 square foot location in Flower Mound, Texas, 6 miles north of DFW International Airport. With the increased space capacity, the company expanded its machinery to include: 5 new CNC machines, with 4 CNC turning centers and a VMC with 4th axis capability.

Sigma Valves Wherehouse

Also, Sigma Valves installed Solid Works 2010 design software bringing on board an on-site certified Solid Works professional designer and added a document control system. The management team combines over one hundred years of experience producing Sigma Valves.

Latest Product

"S" Series - Auto/Manual Reset Relays Download

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Please contact us if you have any questions:

Phone:  972-355-3453
Fax:      972-446-8642