Injection Valve Technologies

SkoFlo technology has proven to be the most reliable and accurate method of dispensing chemicals to maintain pipeline integrity and flow assurance.

SkoFlo valves operate on a simple and reliable principle that a given fluid flow rate will generate a consistent pressure drop across a known restriction. The pressure drop produces a net force on a piston which is countered by a spring force. A ceramic throttling point attached to the piston keeps the spring force equal to the pressure differential thereby maintaining a constant flow that is independent of fluctuations in external pressure. No adjustments are needed to maintain a preset flow!

As the pressure drop across the valve increases, flow through the valve will momentarily increase causing the pressure drop across the restriction and the piston to increase. The rise in pressure drop will cause the piston to move the pin toward the seat restricting flow. Since piston travel is slight the change in spring force is negligible and the pressure balance across the piston is the same after the piston reacts to the pressure change. The time for the piston is virtually instantaneous and occurs without hunting or chatter.

The chance of fluid erosion in the orifices is nonexistent because the pressure drop across the orifice assembly is governed to a maximum of either 200 psid or 350 psid full scale. The fluid energy is dissipated when the fluid passes over the ceramic surfaces of the throttling pin and seat.

The operation of a SkoFlo CIMV is entirely mechanical, except to adjust flow settings. This makes the SkoFlo valve remarkably reliable while requiring very low power.

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1 gallon per day!

Pressure independent flow regulation to 1 gallon per day!
Watch video to see what 1 gallon per day looks like.

Pioneering an industry

SkoFlo is the world leader in precision chemical injection systems for the petroleum
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Our chemical injection metering valves (CIMV) were the first in 1988, and today our patented spring-balanced valve technology is still revered as the industry's most accurate.

SkoFlo valves are pressure-independent, delivering constant flow with large changes in pressure drop. This allows one pump to accurately meter chemical to multiple injection points regardless of upstream or downstream pressure fluctuations.

We're ahead of the curve

Every year, we re-invest 20%
of our profits in R&D.
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Chemical injection is all we do, and we are committed to advancing our technology and staying ahead of the field. Our customers rely on us for our technical sophistication and our expertise. They bring their toughest injection challenges to SkoFlo … and we're proud to help solve them.

21 million operating hours and counting...

Our experience and track record speak for themselves.
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SkoFlo has delivered over 20,000 valves since 1988. We are the only company that proves our products by testing them in surface applications before deploying them subsea. The result is that SkoFlo valves have amassed over 21 million continuous operating hours.