Low Pressure / Back Pressure Valve Assembly for Montabert HC170 Hydraulic Drifter
This assembly includes the diaphragm kit, lower flange, slide, spring, lining, seals, back-up rings, cover and related mounting components for the Montabert HC170 hydraulic drifter. These components regulate low-pressure and back-pressure hydraulic circuits, ensuring stable pressure control, reliable sealing and consistent percussion performance under demanding drilling conditions.
Assembly Components
| Item | Part No. | Name | Qty | Remarks |
|---|---|---|---|---|
| 180 | 86752979 | 1/2" UNF Socket Head Screw | 7 | - |
| 190 | 86252327 | O-ring | 1 | Hydraulic seal |
| 200 | 86634003 | Diaphragm Kit | 1 | Service kit |
| 200A | 86265048 | Inflating Screw | 1 | - |
| 200B | 86241403 | BS Ring | 1 | - |
| 210 | 86398229 | Plastic Plug | 7 | - |
| 220 | 86751401 | 1/2" UNF Socket Head Screw | 7 | - |
| 230 | 86672623 | Lid | 1 | - |
| 240 | 86590122 | Lower Flange | 1 | - |
| 250 | 86590056 | Ring | 1 | - |
| 260 | 86223427 | Spring | 1 | - |
| 270 | 86312196 | Washer | 10 | - |
| 280 | 86366259 | Slide | 1 | - |
| 290 | 86590049 | Lining | 1 | - |
| 300 | 86301272 | O-ring | 3 | Hydraulic seal |
| 310 | 86588001 | Back-up Ring | 3 | Anti-extrusion ring |
Contact our team for pricing, availability and technical assistance regarding low pressure valves, back pressure valve components, diaphragm kits, slides, springs, seals and replacement parts for the Montabert HC170 hydraulic drifter. You can also browse the complete range of Montabert HC170 spare parts.