The Darda Low Pressure Complete Quick Coupling (S1 Hose) is a hydraulic connection assembly designed for low-pressure return lines in Darda splitter and power pack systems. It forms part of the hydraulic hose assembly that connects the power pack to the hydraulic splitter or crusher.This quick coupling enables rapid, leak-free connection and disconnection between the hydraulic tool and the power unit without fluid loss or contamination.
Design:
- Type: Complete quick coupling set includes both male and female halves designed for the S1 hose (low-pressure line).
- Operating Pressure: Typically rated for low-pressure hydraulic return flow (~3060 bar / 435870 psi).
- Connection Type: Push-to-connect or sleeve-type locking mechanism for secure and tool-free engagement.
- Valve System: Self-sealing (check valve integrated) to prevent oil leakage during disconnection.
- Thread Type: BSPP or metric thread (depending on model series).
- Sealing System: Nitrile (NBR) or Viton (FKM) O-ring for oil-tight sealing.
- Flow Path: Large-diameter bore to minimize pressure drop and allow unimpeded fluid return.
Application: Designed for the low-pressure return circuit of Darda hydraulic systems especially the S1 hose line used with Darda Splitters (C12, C20, C9, etc.) and Darda Power Packs (HCS 6, HCS 8, HPP series)
Function in System: Connects the low-pressure return hose from the hydraulic cylinder back to the power pack reservoir.Enables fast tool swaps between different Darda attachments (splitters, crushers) without system depressurization.
Industries:
Demolition and concrete splitting
Quarrying and rock removal
Controlled structural dismantling
Materials:
- Coupling Body – Hardened carbon steel (zinc-nickel plated) for strength and corrosion resistance
- Locking Sleeve – Case-hardened steel which provides wear resistance for repeated coupling cycles
- Internal Valve Components – Stainless steel for corrosion resistance and precise sealing surfaces
- O-Rings/Seals – Nitrile (NBR) or Viton (FKM) for oil and temperature resistant sealing
- Dust Cap – Thermoplastic (PA6) which protects coupling faces from dirt ingress