Sandvik / Tamrock
551 684 25d Valve, Directional
DD321-40
| Part Number | 551 684 25d |
| Description | Valve, Directional |
| Brand | Sandvik (Tamrock) |
| Assembly | Control Valve Assembly |
| Type | Drill Rig Spare Part |
Quick answer
551 684 25d (also written 55168425d, 551-684-25d, or 551.684.25d) is a Sandvik valve, directional spare part used in the Control Valve Assembly assembly of the Sandvik DD321-40. Verified compatible with 1 Sandvik machine model including DD321-40. 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: 55168425d, 551 684 25d, 551-684-25d.
Compatible machines
1
OEM cross-reference
551 684 25d
About Sandvik 551 684 25d Valve, Directional
This valve controls fluid flow and pressure within the hydraulic or pneumatic system of the Sandvik DD321-40. Part of the Control Valve Assembly, 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 DD321-40 (DD321-40). 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.
