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Highest quality and performance
Bi-directional zero-leakage isolation — from full vacuum to Class 1500 / PN 250 pressures (3750 psig/250 barg)
We specialize in creating valves that thrive in the harshest environments and our products are known for their ability to handle differential pressure scenarios, corrosive materials, extreme temperatures and detrimental solids.
We provide prompt delivery, honest customer service and a technologically advanced product made in North America, shipped throughout the world.
Designed for Severe Service™
As industrial processes continue to increase in complexity and risk, valve design and performance is crucial to maintaining consistent plant operation and maintaining your bottom line. Valves are critical to protecting your workers and the environment; they need to be reliable in the harshest of conditions.
Key Industries

Ready for Any Application
DSS Valves is known for creating dependable Severe Service Valves that outlast the competition in any scenario. Just because they’re built to thrive in the most severe conditions, doesn’t mean they shouldn’t be considered for more general applications.
Investing in a premium product pays dividends through increased service life and reduced downtime, making the overall cost of ownership much less in the long run.
Key Industries

Ready for Any Application
DSS Valves is known for creating dependable Severe Service Valves that outlast the competition in any scenario. Just because they’re built to thrive in the most severe conditions, doesn’t mean they shouldn’t be considered for more general applications.
Investing in a premium product pays dividends through increased service life and reduced downtime, making the overall cost of ownership much less in the long run.
AIS & BAA Compliant
DSS is dedicated to producing North American Made Severe Service Valves (SSVs). The majority of our components and parts are sourced from US-based vendors and manufacturing takes place at our headquarters in Niles, MI.
We are proud to be compliant with both the American Iron and Steel (AIS) Requirement and the Buy American Act (BAA).



SIL 3 Certified
SIL is an international safety standard that provides manufacturers with a common framework to use when designing products and systems, ultimately resulting in reduced field failure rates and design flaws.

ISO 9001:2015
Certified Quality Management System. MSECB Certification is an internationally recognized standard, exemplifying the commitment towards continual improvement and sustainable business continuity.

ABSA CRN Certified
The CRN (Canadian Registration Number) system is the Canadian method of reviewing and registering the design of pressure vessels, piping systems and the fittings used to make them.