Frequently Asked Questions
Everything you need to know about the Atlas SSCV — from how it works to sizing, installation, and maintenance.
01 — General
The Atlas Severe Service Control Valve (SSCV) is a patented high-capacity, high-recovery control valve designed to withstand continuous choked-flow conditions. Unlike conventional globe valves, the Atlas uses an axisymmetric flow path that eliminates cavitation, reduces noise below 60 dB, and delivers upt to 700:1 control range.
Conventional globe valves use a tortuous flow path that creates localized low-pressure zones, leading to cavitation, noise, and rapid erosion. The Atlas SSCV's 360-degree uniform pressure dissipation design eliminates these failure modes entirely. The result: valve life measured in years instead of months, with near-zero maintenance.
The Atlas SSCV serves any application involving severe service flow control, including oil & gas (wellhead blowdown, separator service), petrochemicals (pressure letdown, cracker units), data centers (chilled water systems), power generation (turbine bypass), mining (slurry service), and pulp & paper.
Yes. The Atlas SSCV's core innovations are protected by multiple US patents, including the axisymmetric flow path design and the helical bevel gear-drive mechanism. Visit our Quality & Patents page for details.
02 — Technical & Sizing
The Atlas SSCV is available from ANSI 150 through ANSI 2500, with a maximum pressure rating of 6,000 PSI. Custom pressure ratings are available on request for special applications.
Standard sizes range from 1" through 24". Larger sizes can be engineered for specific project requirements. Contact our engineering team for sizing assistance.
Atlas can deliver as control range up to 700:1 thanks to its multi-turn helical bevel gear-drive mechanism. This allows precise throttling control across the entire operating range, far exceeding the typical 50:1 of standard globe valves.
Standard body materials include WCB, WCC, LCC, and CF8M (316SS). High-alloy options include Duplex 2205, Super Duplex 2507, Alloy 20, Hastelloy C-276, and Inconel 625. Trim materials include Stellite 6, Tungsten Carbide, and ceramic coatings. We select materials based on your specific process chemistry and conditions.
Send us your process data (inlet/outlet pressure, flow rate, fluid type, temperature) and our engineering team will perform a complete sizing analysis including Cv calculations, noise predictions, and cavitation assessment. Contact us to get started.
03 — Installation & Maintenance
In most cases, yes. The Atlas SSCV is designed with standard face-to-face dimensions and flange connections, making it a direct replacement for existing globe valves without piping modifications. Our engineers will confirm fit during the sizing process.
Yes. Our field operations team provides on-site installation guidance and commissioning support. We also supply detailed installation manuals and can conduct remote support via video call for straightforward installations.
The Atlas SSCV is designed for near-zero maintenance. Because cavitation is eliminated, there is no trim erosion, no seat damage, and no need for the frequent rebuilds that plague conventional valves. Typical maintenance intervals are 5–10+ years depending on service conditions.
Field data shows Atlas valves running 3–10+ years in continuous severe service with no trim replacement — compared to 3–12 months for conventional globe valves in the same applications. See our case studies for documented results.