Flow restrictor VDCA series

This multi-orifice flow restrictor incorporates slots and spin chambers to form a complex fluid passage. This provides a greater minimum passage for a given restriction and is better suited to handle much higher levels of contamination. Additionally, the fluid velocity is reduced by the series of restrictions, thus reducing the chances of cavitation. With robust screens protecting for bidirectional flow, the 68 Series Visco Jet® Multi-Orifice Restrictor is available calibrated to ± 5% or ± 10% tolerance. - Type: Multi-Orifice - Diameter: 0.68 inches - Metered Flow Range: 1370 to 19,600 Lohms - Test Fluid: Water - Operating Pressures: Up to 3000 psi General Performance - Lohm Rate Tolerance: ± 5% or ± 10% - Maximum Working Pressure: 3000 psid - Nominal Weight: 24.7 - 35.8 grams Materials - Body: 303 CRES - Visco Stack: 304L CRES - Screens: 304L CRES - Spacers: 303 CRES - End Washer: 303 CRES - Shims: 304L CRES - “A” Washer: 303 CRES - Back Up Rings: Customer Supplied (MS28774-015) - “O” Ring: Customer Supplied (M83248/2-015) - Finish: All CRES Parts Passivated Dimensional Views & Installation Hole Details: For dimensions, please refer to the Part Numbers & Specifications tab. Key Product Facts - Type: Multi-Orifice - Diameter: 0.68 inches - Metered Flow Range: 1370 to 19,600 Lohms - Test Fluid: Water - Operating Pressures: Up to 3000 psi Part Numbers & Specifications (selection): - PART NUMBER: VDCA6825137D, Tolerance: ± 5%, LOHM RATE: 1370 Lohms - PART NUMBER: VDCA6815880D, Tolerance: ± 5%, LOHM RATE: 8800 Lohms - PART NUMBER: VDCA6815196H, Tolerance: ± 5%, LOHM RATE: 19,600 Lohms For More Information: Technical Hydraulic Handbook of Aerospace, Energy, and Motorsport Solutions Page B50 - B51 CAD Envelope: 68 Series Visco Jet® Multi-Orifice Restrictor Model (available on request) Resources: - An Engineer's Guide to Selecting a Flow Restrictor - The Lee Visco Jet® Overview - What are the Performance Characteristics of a Flow Restrictor? - The Difference Between Calibrated Orifices and Holes - What is a Flow Restrictor and How Does it Work? Characteristics / Technical Specifications: - Type: Multi-Orifice - Diameter: 0.68 inches - Metered Flow Range: 1370 to 19,600 Lohms - Test Fluid: Water - Operating Pressures: Up to 3000 psi - Lohm Rate Tolerance: ± 5% or ± 10% - Maximum Working Pressure: 3000 psid - Nominal Weight: 24.7 - 35.8 grams - Body Material: 303 CRES - Visco Stack Material: 304L CRES - Screens Material: 304L CRES - Spacers Material: 303 CRES - End Washer Material: 303 CRES - Shims Material: 304L CRES - “A” Washer Material: 303 CRES - Back Up Rings: Customer Supplied (MS28774-015) - “O” Ring: Customer Supplied (M83248/2-015) - Finish: All CRES Parts Passivated