Sandvik / Tamrock
550 903 91b Valve, Directional
DI550
| Part Number | 550 903 91b |
| Description | Valve, Directional |
| Brand | Sandvik (Tamrock) |
| Assembly | Valve assembly |
| Type | Drill Rig Spare Part |
Quick answer
550 903 91b (also written 55090391b, 550-903-91b, or 550.903.91b) is a Sandvik valve, directional spare part used in the Valve assembly assembly of the Sandvik DI550. Verified compatible with 3 Sandvik machine models including DI550, DP1100i, DP1500i. 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: 55090391b, 550 903 91b, 550-903-91b.
Compatible machines
3
OEM cross-reference
550 903 91b
About Sandvik 550 903 91b Valve, Directional
This valve controls fluid flow and pressure within the hydraulic or pneumatic system of the Sandvik DI550. Part of the 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 DI550 (DI550). 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.