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Valvenok has partnered with Valve Systems International (VSI) to represent and support the Atlas Severe Service Control Valve.
The Atlas SSCV uses an axial linear flow path to eliminate cavitation at the source — not manage its symptoms.
Field-proven across natural gas production, injection pump control, storage blowdown, and hydrocarbon refining.
Maintenance cycles exceed 2 years vs. 3–6 months for standard valves, with trim replacement instead of full valve swap.
Available in three sizes (2", 3", 4") — API 6A and ASME B16.34 compliant, with tungsten carbide trim for particulate service.
Valvenok has partnered with Valve Systems International (VSI) to represent and support the Atlas Severe Service Control Valve — a valve that doesn't just tolerate the toughest conditions in our industry, but is built specifically to thrive in them.
This partnership is about more than adding a product line. It's about being able to give our customers a real, lasting answer to a problem many of you have lived with for years: the high-pressure, erosive, cavitating service that quietly chews through standard valves and budgets alike.
VSI shares something we care deeply about — solving the root cause, not selling around it. The Atlas wasn't built by tweaking an existing globe valve; it was designed from the ground up for severe service, and the field record backs that up. When we looked at how it performs and how the VSI team approaches engineering and support, the fit was obvious.
The Atlas is made in the USA in Oklahoma and shipped worldwide, with field-proven results across demanding production, storage, and refining applications. Pairing that with our local relationships and service means you get a better valve and a partner who's right there with you through sizing, installation, and the long run.
"Cavitation doesn't have to happen. It's a design choice."
— The principle behind the Atlas SSCVIn high differential-pressure, erosive service, standard valves fail by design. Inside a conventional globe valve, fluid changes direction abruptly, accelerates through the seat, and its static pressure drops below vapor pressure. Vapor bubbles form and then implode against metal surfaces downstream — driving severe erosion, vibration, loss of control, and premature failure. No upgrade in materials fixes a geometry problem.
The result operators know all too well: replacing the same valve every three to six months, recurring unplanned shutdowns, and collateral damage to surrounding piping and equipment. The cost is never just the valve — it's everything the valve takes down with it.
The Atlas is the only severe service control valve engineered from first principles for this exact problem. Instead of forcing fluid to turn, it uses an axial, linear flow path with zero direction change and an axisymmetric trim that keeps static pressure controlled below vapor pressure — so the implosion zone simply never forms.
Erosive trim surfaces are isolated from the high-velocity zones, and patented zero-backlash precision actuation delivers full-range positioning accuracy. The outcome is a valve that solves the root cause of cavitation rather than managing its symptoms — delivering reliability and performance no standard valve can match.
0–5,000psid
Pressure range — up to 10,000 psid with reduced trim
700:1
Control range with ±3% accuracy
<60dB
Noise level in choked flow
2+yrs
Maintenance cycle vs. 3–6 months standard
27
Atlas valves in service — trim replacement only
2–4×
Longer valve life, near-zero unplanned downtime
Here's what changes when an Atlas takes the place of a standard severe service valve on your most punishing line.
Standard SSCV
With Atlas
Flow path
Fluid changes direction abruptly
Axial linear path — zero direction change
Pressure at the seat
Implosion downstream of the seat
Static pressure kept below vapor pressure
Erosion risk
Erosive fluid contacts metal surfaces
Trim isolated — zero implosion zone
Vibration
Flow-induced vibration
Axisymmetric flow — no induced vibration
Maintenance cycle
Replacement every 3–6 months
Cycle exceeding 2 years
Service
Full valve replacement
Trim replacement only
The Atlas comes in three sizes, all compliant with API 6A and ASME B16.34, with tungsten carbide trim available for particulate-laden service.
Atlas 15
2" Valve
Capacity
Cv up to 70
Rangeability
up to 80:1
Atlas 21
3" Valve
Capacity
Cv up to 130
Rangeability
up to 58:1
Atlas 32
4" Valve
Capacity
Cv up to 300
Rangeability
up to 58:1
If any of these sound like a line you fight to keep running, the Atlas is worth a conversation.
Natural gas production
Reliable control in fluid loaded with water and erosive solids.
Injection pump control
Precise regulation that holds up in severe conditions.
Storage blowdown
Rugged, repeatable flow control from 3,500 PSI to atmospheric.
Pump test stands
Continuous choked flow without degradation or drift.
Hydrocarbon refining
High-pressure differential control where margins are thin.
High ΔP / high flow
Engineered for the most demanding conditions in the plant.
Our goal with this announcement is simple: we want the operators we work with to know that this option now exists, and that it's available through people you already trust. You don't have to keep budgeting around a valve that fails every six months. There's a design that was built to last — and now there's a local partner standing behind it.
If you've got a line that costs you more than it should, we'd love to talk through whether the Atlas is the right fit. No pressure — just a real conversation about your conditions and what's possible.
Reach out to learn more about the partnership and how the Atlas performs in your toughest service.