Hydraulic Main Control Relief Valve 723-40-50200 For Komastu Aftermarket Excavator Parts PC200-6
- Hydraulic Main Control Relief Valve 723-40-50200 For Komasto Excavator PC200-6 Valve Spare Parts
- Product description
| Parts Name | Hydraunlic Main Control Relief Valve |
| Equipment | Komastu |
| Category | Excavator Hydraulic Parts |
| Item Condition | New |
| MOQ | 1 |
- Core functions
| 1.Overpressure Safety Protection (Primary Function) |
| (1)It is set to a factory-calibrated maximum pressure (typically around 32–35 MPa for this model). |
| (2)When system pressure exceeds this setpoint (due to overload, cylinder stall, or blockage), the valve opens fully to divert excess high-pressure oil back to the hydraulic tank. |
| This prevents catastrophic failure of hydraulic pumps, cylinders, hoses, seals, and the main control valve body. |
| 2.Pressure Regulation & Stabilization |
| (1)During normal operation, it maintains a consistent working pressure by bleeding off surplus flow from the main pump. |
| (2)It ensures smooth and predictable operation of all hydraulic functions (boom, arm, bucket, travel, swing). |
| 3.System Unloading |
| (1)When the excavator is idle or in neutral, the valve can be remotely signaled to fully open, allowing the hydraulic pump to operate at low pressure (unloaded), reducing energy consumption and heat generation. |
- Core details
| 1.Design |
| Built to Komatsu’s strict specifications, it uses a precision spring‑loaded mechanism to maintain consistent pressure regulation. It is engineered to withstand high pressure, heavy vibration, and harsh operating conditions in construction and mining environments |
| 2.Role |
| Essential for maintaining safe and stable hydraulic performance during digging, lifting, and swinging operations. It ensures the hydraulic system operates within its design pressure limits, protecting both the machine and operators. |
- Parts on group
| Pos. | Part No | Qty | Parts name | Comments |
| 723-46-10500 | [1] | VALVE ASS'Y Komatsu | 180 kg. | |
| ["SN: 84620-86929"] analogs:["7234610501"] |$4. | ||||
| 723-46-10107 | [1] | VALVE ASS'Y Komatsu | 170 kg. | |
| ["SN: 83720-84619"] analogs:["7234610105", "7234610103"] |$5. | ||||
| 723-46-10105 | [1] | VALVE ASS'Y Komatsu | 170 kg. | |
| ["SN: 82274-83719"] analogs:["7234610107", "7234610103"] |$6. | ||||
| 723-46-10103 | [1] | VALVE ASS'Y Komatsu | 170 kg. | |
| ["SN: 80001-82273"] analogs:["7234610105", "7234610107"] |$7. | ||||
| [-1] | THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 TO Y1660-11A0. | |||
| |$$5. | ||||
| 1. | 723-46-15150 | [2] | VALVE Komatsu | 0.021 kg. |
| ["SN: 80001-@"] | ||||
| 2. | 723-46-14150 | [2] | SPRING Komatsu | 0.005 kg. |
| ["SN: 80001-@"] | ||||
| 3. | 723-46-15180 | [6] | PLUG Komatsu China | |
| ["SN: 80001-@"] | ||||
| 4. | 07002-11823 | [6] | O-RING Komatsu | 0.36 kg. |
| ["SN: 80001-@"] analogs:["0700201823"] | ||||
| 5. | 723-46-15190 | [2] | VALVE Komatsu | 0.005 kg. |
| ["SN: 80001-@"] | ||||
| 6. | 723-46-14140 | [2] | SPRING Komatsu | 0.005 kg. |
| ["SN: 80001-@"] | ||||
| 7. | 708-8E-16160 | [2] | PLUG Komatsu | 0.01 kg. |
| ["SN: 80001-@"] | ||||
| 8. | 07002-11023 | [2] | O-RING Komatsu China | 0.025 kg. |
| ["SN: 80001-@"] analogs:["0700201023"] | ||||
| 9. | 709-74-91860 | [1] | PLUG Komatsu China | |
| ["SN: 80001-@"] | ||||
| 10. | 07002-12434 | [1] | O-RING Komatsu China | 0.01 kg. |
| ["SN: 80001-@"] analogs:["0700202434", "0700213434"] | ||||
| 12. | 723-46-40100 | [1] | VALVE ASS'Y Komatsu | 0.5 kg. |
| ["SN: 84620-@"] | ||||
| 12A. | 723-46-46101 | [2] | VALVE ASS'Y Komatsu | 0.5 kg. |
| ["SN: 84620-@"] | ||||
| 13. | 723-46-40300 | [4] | VALVE ASS'Y Komatsu | 0.48 kg. |
| ["SN: 80001-@"] | ||||
| 14. | 723-46-40200 | [2] | VALVE ASS'Y Komatsu China | |
| ["SN: 82274-84619"] analogs:["7234640400"] | ||||
| 14. | 723-46-40400 | [2] | VALVE ASS'Y Komatsu China | |
| ["SN: 80001-82273"] analogs:["7234640200"] | ||||
| 15. | 723-46-41100 | [2] | VALVE ASS'Y Komatsu | 0.49 kg. |
| ["SN: 84620-@"] | ||||
| 15A. | 723-46-45100 | [3] | VALVE ASS'Y Komatsu | 0.49 kg. |
| ["SN: 84620-@"] | ||||
| 16. | 723-46-15100 | [1] | PLUG ASS'Y Komatsu China | |
| ["SN: 80001-@"] | ||||
| 17. | 723-40-50100 | [1] | VALVE ASS'Y,RELIEF Komatsu OEM | 0.837 kg. |
| ["SN: 80001-@"] | ||||
| 18. | 723-40-50200 | [2] | VALVE ASS'Y,RELIEF Komatsu | 0.35 kg. |
| ["SN: 80001-@"] analogs:["7234050201"] | ||||
| 19. | 723-40-56100 | [2] | VALVE ASS'Y,UNLOAD Komatsu | 0.198 kg. |
| ["SN: 80001-@"] | ||||
| 20. | 723-40-60100 | [1] | VALVE ASS'Y Komatsu OEM | 0.48 kg. |
| ["SN: 80001-@"] analogs:["7234060101"] | ||||
| 21. | 709-70-74302 | [4] | VALVE ASS'Y,SUCTION AND SAFETY Komatsu | 0.42 kg. |
| ["SN: 80001-@"] | ||||
| 22. | 709-70-74203 | [1] | VALVE ASS'Y,SUCTION AND SAFETY Komatsu | 0.42 kg. |
| ["SN: 80001-@"] | ||||
| 23. | 723-40-85100 | [5] | VALVE ASS'Y,SUCTION Komatsu | 0.19 kg. |
| ["SN: 84620-@"] | ||||
| 23. | 709-20-81201 | [5] | VALVE ASS'Y,SUCTION Komatsu China | |
| ["SN: 80001-84619"] |
We are able to supply you excavator parts either big to engine or small to seal, either genuine or replacement.
| Undercarriage parts | track chain, track shoe/pad, track roller, carrier roller, front idler, Sprocket, track recoil spring |
| Engine parts | Engine assembly, cylinder block, cylinder head, gasket kit, liner kit, fuel pump, water pump, oil pump, fuel injector, Exhaust Intake manifold, Turbocharger |
| Hydraulic parts | Hydraulic pump, Hydraulic motor, Main Control Valve, Hydraulic boom bucket stick cylinder |
| GET Parts | Bucket, tooth, Breaker.. |
| Filter | Air filter, hydraulic filter, oil filter, fuel filter, pilot filter |
| Electric parts | CPU Controller, wire harness, sensor, accel motor… |
| Gearbox system | Final drive, swing gearbox, travel motor, swing motor, slewing bearing |
- Supply for other brands of excavator
- Price term, Port, Delivery
Price term: EXW, FOB, CNF, CIF
Port: Guangzhou, or negotiable
Shipping: By Sea, By air to airport, By express(door to door, DHL Fedex TNT UPS), By truck
- Packing and Lead time
Package details: Standard export carton, Wooden box, Polly-wood Pallet, Packaging film
Delivery date: 2-5 days for parts in stock, 5-20 days for parts not in stock.
- FAQ
Question:
I know only the excavator model, and can not offer parts no, what I can do then?
Answer:
If possible, you can send us the photos of the old parts you need to order and try to get the series number(this could be found easily) of your machine. Send by email to us and make a contact.
Question:
Can I get warranty on the parts I purchase?
Answer:
Yes, you can. We give warranty of 3/6/12 Months on the parts.
Question:
I want parts for repairing my excavator, and they are for many different egory, like engine, undercarriage, hydraulic, bucket, can you supply all of them.
- How warranty goes?
1. Parts with quality problem can be replaced
2. Warranty Period:Warranty of 3/6/12 Months given according to the parts type and quality standard
3. Warranty do not cover for below:
* Wrong Order from customer.
* Natural Disasters cause the damage.
* Error installation.
* The machine and the parts work over time and over load.
* Lost by any condition.
* Human element destroyed.
* Corrode with rust during stock and running.
* Warranty Expired.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.