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RPI Metering Valves – What to Expect or Notby Phil Goldstein An RPI |
At this time, I would like to review some of the observations our customers have noticed during the installation of our metering valves that fit the MDT (Harvey) Chemiclave, Models E, 4000, 5000, 5500 and 6000. When rotating the control shaft from the “Depressurized” position to the “Pressurized” position, or vise versa, a small amount of solution is forced out through the two vent holes in the outer body of the metering valve. This is not a problem. It’s suppose to do that. In fact, a splash shield accompanies every RPI valve and is designed to absorb the drips. However, there are times you should be suspicious and here’s what to do. If the machine looses pressure, check the o-rings and tubing for cracks. Check for excessive bubbles in the fill tube. Then make sure that the operating temperature is below 275°F because the solution will start to boil away at 272°F. (Tip: If there are excessive bubbles in the fill tube, without a pressure leak, this means that the chamber temperature is too high. Use the Max Register Thermometer (RPI Part #RPT113) to confirm that the temperature is too high and not a valve problem. If you see fluid being pushed through the vent line then check the o-rings. If the main reservoir is depleted long before it should be, then check the o-rings. As you can see, the o-rings are the key to maintaining a working valve. In fact, RPI Metering Valves come with a FREE lifetime availability of the Metering Valve Service Kit (RPI Part #MDK057) that includes all of the o-rings and lubricant that you will need. Ask for a FREE Kit (RPI Part #MDK057) with any of the Metering Valves (RPI Part #MDV010, MDV011 or MDV016) the next time you place an order. That’s the RPI Advantage! |
