The VR*-P series by Duplomatic are subplate-mounted poppet check valves designed for reliable one-way flow control in hydraulic systems. Here's a detailed overview:

 Specifications

• Mounting Style: Subplate (ISO 5781 interface)
• Sizes Available:
  • VR3-P: 3/8" BSP, max flow 100 l/min
  • VR5-P: 3/4" BSP, max flow 200 l/min
  • VR7-P: 1¼" BSP, max flow 400 l/min
• Max Operating Pressure: Up to 350 bar (VR3-P and VR5-P), 250 bar (VR7-P)
• Cracking Pressure Options: 0.5 bar, 5 bar, or 10 bar
• Viscosity Range: 10–400 cSt
• Contamination Class: ISO 4406:1999 class 20/18/15