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Products / Valves / VSI Control Valves
Severe Service Control Valves — Atlas Series
VSI – Valve Systems International has built a global reputation engineering severe service control valves for the most demanding process conditions. The Atlas Series is designed, engineered and manufactured under proprietary specification with decades of proven application expertise in high-pressure, high-noise and erosive service environments. Precise flow control, extended maintenance cycles and 700:1 control range at ±3% accuracy define the Atlas range — performance that cannot be replicated by imitation.
Valvenok supplies a comprehensive range of industrial, marine and instrumentation valves engineered for demanding service conditions across oil & gas, petrochemical, power generation and marine industries. From API-rated process isolation valves to class society approved marine valves and precision SS316 instrumentation valves — every product built for leak-tight, reliable performance.
Atlas 15 Severe Service Control Valve
The Atlas 15 delivers the highest flow capacity in a 2" severe service control valve. Built for high-pressure precision control with up to 80:1 rangeability and extended 2+ year maintenance cycles.
2" NPS
Cv Up to 70
0–5,000 psi DP
Rangeability Up to 80:1
< 60 dB Choked Flow
2+ Year Maintenance Cycle
Atlas 21 Severe Service Control Valve
The Atlas 21 is engineered for pump testing, storage blowdown and severe service control in a 3" body. Delivers up to 130 Cv with ultra-low noise and 700:1 control range at ±3% accuracy.
3" NPS
Cv Up to 130
0–5,000 psi DP
Rangeability Up to 58:1
< 60 dB Choked Flow
2+ Year Maintenance Cycle
Atlas 32 Severe Service Control Valve
The Atlas 32 is the maximum capacity severe service control valve in the Atlas range. A 4" body with up to 300 Cv for the most demanding high-flow applications.
4" NPS
Cv Up to 300
0–5,000 psi DP
Rangeability Up to 58:1
< 60 dB Choked Flow
2+ Year Maintenance Cycle
API 607
Fire Safe Certified
SS316 (CF8M)
Material Standard
1/8" – 12"
Size Range
Up to 2000 PSI
Pressure Rating
11 Series
Ball Valve Range