VP17 series male nipple, and female coupler, 1" x 1" NPT. The VP series Auto-Lock sleeve flat face coupler is the most popular solution for high residual pressure. With an auto-lock sleeve and the ability to connect/disconnect with residual pressure, the VP series provides positive secondary retention in hydraulic circuit applications subject to high-pressure impulses and circuits which experience high residual or trapped pressure in a line.
 
Applications:
All construction equipment applications with higher pressure requirements or connection/disconnection issues with tool attachments under residual pressure.
All large equipment needing junction points in circuit: cranes, drilling machines, oil field, well head drives, porta-power
Excavators with auxiliary line for attachments: thumbs grapples, hammers