Flow Controls Product Family
Product Number: V303010200
Vernay Flow Controls regulate liquid flow over a wide range of pressures when used in conjunction with the proper seat. As they have no moving parts, Flow Controls are unaffected by silt or other fluid contaminants. Flow Controls do not require adjustments or servicing once installed. They are available in a variety of materials and geometries and can adapt to various types of seats. Vernay Flow Controls will operate in temperatures as low as -50°C (-58°F) and as high as 260°C (500°F), depending on the compound. The orifice and final seat diameter of the Flow Control are based on your particular application or system.
Materials of Construction
- Part Number: V303010200
- Product Group: Flow Controls
- Material Number: VL125X112
- Material Type: Nitrile
- Material Color: Black
Design Characteristics
Function
Vernay Flow Controls are engineered to compensate for variations in pressure, such as pipe friction, downstream restrictions, distance from the water tower or elevation, etc.
Working Principle
Vernay Flow Controls provide consistent flow from 0.24 to 38 liters (0.06 to 10.0 gallons) per minute over a pressure range of 138 to 828 kPa (20 to 120 psi). They operate by flexing in such a way as to reduce flow cross-section just enough to maintain constant flow.
Mounting Instructions
Vernay standard Flow Controls should be mounted on the correct seat (see table) and retained with a snap ring or other similar device. Care should be taken to apply the retainer so as to not compress the Flow Control.
Photo/Rendering
Technical Drawing
Performance Characteristics
Opening Pressure
Definition
Opening Pressure is the differential pressure required for the valve to achieve the specified flow threshold. As the flow threshold increases, the Opening Pressure will also increase. Conversely, lowering the flow threshold results in a decrease in Opening Pressure. Water test data is available upon request.
Reverse Leakage
Definition
Leakage, or reverse flow, is measured by gradually increasing the backpressure across the valve, starting from zero. Please note that the leakage graph uses a different scale compared to the flow graphs. Water test data is available upon request.
Forward Flow
Definition
Flow and differential pressure are measured simultaneously as the inlet pressure increases from zero. Once the maximum flow is reached, the pressure is gradually reduced back to zero, with flow and differential pressure measured throughout the process. The chart displays the minimum and maximum flow values recorded during tests of multiple samples at each pressure level. Water test data is available upon request.
Vernay Quality Policy
Vernay is committed to the highest level of quality and service to our customers. We focus on innovation and continuous improvement in all areas of our business and accomplish these goals through our quality management system. Maintain our existing quality certifications (ISO/IATF-16949, ISO 9001, and ISO 13485).