VALVE OPERATION
The OCV Model 94-1 check valve, with adjustable opening speed, is a simple on-off valve that opens to allow forward flow and closes tightly to prevent backflow. The 94 operates on the differential between two pressures: upstream or inlet pressure acting under the seat of the valve, and downstream or discharge pressure acting on the diaphragm via the single hydraulic line. When upstream pressure is the greater of the two (forward flow), the valve opens at an adjustable rate to allow flow. When downstream pressure is greater (backflow), the valve is forced fully closed.
The Model 94-1 consists of the following:

  1. Model 65 Basic Valve
  2. Model 141-3 Opening Speed Control
  3. Model 159 Y-Strainer
  4. Model 141-4 Ball Valve
  5. Model 155 Valve Position Indicator

TOLL FREE 1.888.628.8258  |  phone: 918.627.1942  |  fax: 918.622.8916  |  7400 East 42nd Place, Tulsa, Oklahoma 74145