


Sandvik / Tamrock
551 591 77 Directional valve
DC550
Available — Request Quote| Part Number | 551 591 77 |
| Description | Directional valve |
| Brand | Sandvik (Tamrock) |
| Assembly | Section |
| Type | Drill Rig Spare Part |
Quick answer
551 591 77 (also written 55159177 or 551-591-77) is a Sandvik directional valve spare part used in the Section assembly of the Sandvik DC550. Verified compatible with 1 Sandvik machine model including DC550. Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55159177, 551 591 77, 551-591-77.
Compatible machines
1
OEM cross-reference
551 591 77
About Sandvik 551 591 77 Directional valve
This valve controls fluid flow and pressure within the hydraulic or pneumatic system of the Sandvik DC550. Part of the Section, it ensures precise regulation of drilling parameters including feed force, percussion frequency, and rotation speed.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC550 (DC550). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
Why use OEM-compatible parts for Sandvik drilling equipment?
OEM-compatible parts are manufactured to the same dimensional tolerances and material specifications as original components, ensuring proper fit, reliable performance, and maintaining the designed safety margins of the drilling machine.