Cornerstone Valve — Severe Service Engineering
Severe-service valve solutions

Ball Valves Engineered for the conditions that matter most.

Cornerstone Valve core expertise has been design and manufacturing reliable, engineered-to-order metal seated, bubble tight leakage, high performance isolation valve solutions up to API 6A – 15000# which are dependable, application-driven valve solutions for critical service across energy, industrial, defense, and infrastructure markets.   From material selection through final inspection, every Cornerstone Valve product is designed around the operating conditions, standards, and documentation your project requires.

industries served
Oil and gas topside valve application

Oil & gas topside

Severe-service ball valves engineered for demanding topside process conditions such as High pressure drop (>50 bar / 700 psi), Flashing or multi‑phase flow, Contaminated or abrasive media or Flashing or multi‑phase flow, Contaminated or abrasive media or High velocity, cavitation, or erosion

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Oil and gas subsea valve application

Oil & gas subsea

Severe-service ball valves engineered to ensure long life & maintenance, safe operation. These valves operate reliably under extreme hydrostatic pressure, near-freezing temperatures, corrosive seawater, and years of unattended service which makes them essential for offshore oil and gas, deepwater production, and HPHT well systems.

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Oil and gas production valve application

Oil & gas production

Severe-service ball valves engineered for high pressure, corrosive media, and demanding production conditions. Built to support reliable isolation across offshore platforms, terminals, and onshore facilities.

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Oil and gas cryogenic valve application

Oil & gas cryogenic

Severe-service ball valves engineered for the most extreme low-temperature process conditions. Built to support reliable isolation where cryogenic performance, material integrity, and operational confidence are critical.

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Power generation valve application

Power generation

Severe-service ball valves engineered for demanding HRSG applications and high-temperature process conditions. Built to support reliable isolation, operational efficiency, and long-term performance in power-generation systems.

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Refining valve application

Petrochemical & Refining

Severe-service valves engineered for Refinery market segments such as Hydrocarbon Refining, Hot high-pressure separators (HHPS), Reactor feed control, Distillation column letdown, Compressor Anti-Surge, High-pressure fracking, or Turbine bypass. In Petrochemical market segments, they support chemical tank or process vessel service in aggressive, mixed acid/alkali environments.

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United States defense valve application

U.S. defense

Built to support demanding defense applications and specifications.

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Aerospace valve application

Aerospace

Precision valve solutions for high-performance aerospace applications.

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Mining, pulp, and paper valve application

Mining, pulp & paper

Durable designs for abrasive, high-cycle industrial service.

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Wastewater sludge treatment valve application

Wastewater sludge

Reliable valve solutions for wastewater sludge handling and treatment operations.

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How we support your project

More than a valve supplier

Application engineering

We help translate operating conditions, specifications, and standards into a practical valve solution.

Material expertise

Our team supports material selection for pressure, temperature, corrosion, and service-life requirements.

Quality documentation

Traceability, inspection records, and project documentation are managed with care from start to finish.

Project support

Need help selecting the right valve?

Share your service conditions and project requirements with our team. We will help you identify the right path forward.