How do I convert SCFM to Cv?
There are approximately 25 SCFM per Cv at 100 PSI.

Can my ROSS valves be mounted upside-down?
It is preferred that the valves be mounted with the pilot section up, but sideways and upside-down is okay.

Can I replace valve body only on my ROSS valve?
If your valve requires a new valve body, we recommend buying a new valve. This way you can take advantage of the one-year warranty.

What media, besides air, can I use in my ROSS valve?
Although, compressed air is the usual media, nitrogen, carbon dioxide, argon or any inert gas can be used.

Can I run water through my ROSS valve?
Our valves are designed to operate on compressed air. If the application requires the valve to control the flow of a liquid, please contact Technical Services.

How do I get my EEZ-ON® valve to shift?
If you are having problems getting your EEZ-ON® valve to shift to the full open position, there are a couple of things that may be the cause of the problem.

First, the downstream volume you are trying to fill may be too large. When the EEZ-ON® valve is signaled to shift to the on position it initially bypasses air downstream through a metered orifice. The metering is adjusted by turning the adjusting needle. (Turning the adjusting needle counterclockwise increases the flow through the orifice by opening the orifice wider.) The maximum flow through the bypass orifice is approximately 0.3 Cv. The EEZ-ON® requires the downstream pressure to fill up to approximately 50% of inlet pressure, then the valve opens fully. Of course, the larger the volume to be filled downstream, the longer the valve will take to shift. If the main supply air is dumped, the process starts over.

Second, a similar situation occurs when there are leaks downstream that add up to a leak larger than the flow through the bypass orifice in the EEZ-ON® valve. Essentially, the downstream air can escape to atmosphere faster than the bypass orifice can build pressure downstream. The result is an EEZ-ON® valve that won't shift. On very large systems, the leaks may be small, but the shear number of leaks add up. Another thing to look for is devices that constantly leak by, such as air motors. In the case of an air motor, an isolating valve might have to be installed so that the motor can be shut off until full system pressure is achieved.

Why does my air cylinder jerk as it is extending or retracting instead of moving smoothly?
Flow controls are usually designed to meter the air out of a cylinder. If the flow control is turned around backwards, metering the air in, the cylinder will have a jerky motion.