Guangzhou Qichao Machinery Parts Co., Ltd.
| Compatible Equipment | PC400-7,PC400-8,PC450-7,PC450-8 |
| Application | Excavator Main Hydraulic Pump Displacement & Flow Control |
| Order Processing Cycle | Normally 1–7 working days once payment received |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| MOQ Support | 1 Piece Sample Order Acceptable For On-site Mine Compatibility Test |
| Packaging Details | Neutral Packing/Branded Packaging |
| Warranty | 6 Months |
| OE Part Number | 708-2H-25240 |
| Place of Origin | China |
| Model Number | PC400-7 PC450-8 |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Compatible Equipment | PC400-7,PC400-8,PC450-7,PC450-8 | Application | Excavator Main Hydraulic Pump Displacement & Flow Control |
| Order Processing Cycle | Normally 1–7 working days once payment received | Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T | MOQ Support | 1 Piece Sample Order Acceptable For On-site Mine Compatibility Test |
| Packaging Details | Neutral Packing/Branded Packaging | Warranty | 6 Months |
| OE Part Number | 708-2H-25240 | Place of Origin | China |
| Model Number | PC400-7 PC450-8 | Brand Name | ZVEZDA |
| High Light | PC400-7 Excavator Solenoid Valve ，PC450-8 Excavator Solenoid Valve ，708 2h 25240 | ||
It is the core stepless power matching control component of large-displacement hydraulic pump. It converts ECU current signals into stable adjustable control pressure, dynamically matches pump output flow with engine power output, effectively avoid engine overload stall and reduce overall fuel consumption of the whole machine.
| Specification | Detailed Information |
|---|---|
| Full Product Name | PC400-7 PC450-8 Large Mining Excavator LS Load Sensing Main Pump Proportional Solenoid Valve Assembly |
| OEM OE Number | 708-2H-25240 / 7082H25240 |
| Compatible Machine | PC400-7, PC450-8 Large Heavy Mining Excavator |
| Condition | 100% Brand New Aftermarket OEM Equivalent Spare Parts |
| Origin | Guangdong, China |
| Core Material | Nitride Hardened Alloy Spool + Low Drift Pure Copper Electromagnetic Coil |
| Working Voltage | DC24V Standard Construction Machinery Voltage |
| Wiring Design | Corrugated Heavy-duty Oil-resistant Multi-core Harness + 2-Pin Fully Sealed Waterproof Plug |
| Installation Position | Excavator Hydraulic Variable Main Pump Regulator Valve Block |
| Shipment Lead Time | Dispatched within 1–7 working days after payment confirmation |
| Outer Packaging | Neutral Export Carton + Shockproof EPE Foam Inner Liner |
| Komatsu Parts | JCB Parts | Other Brand Parts |
|---|---|---|
| 20Y-43-41780 | 331/30884 | 4520781 |
| 22U-06-22420 | 331/30885 | 4581230 |
| 22U-06-22380 | 331/30886 | 4601592 |
| 782-5301-301 | 701/80284 | 4632710 |
| 782-5301-302 | 701/80285 | 4678921 |
| 7824-30-1600 | 11S-49 | 4756890 |
| 7825-30-1301 | 60117463 | 4721563 |
| 7825-30-1302 | 60117463LM | 4739125 |
| 7861-92-4130 | 60117464 | 4772106 |
| 7861-92-4131 | 60117465 | 4789321 |
| 20Y-43-41781 | YQ05.251.046 | 4801234 |
| 20Y-43-41782 | YQ05.251.047 | 106-0107 |
| 22U-06-22390 | YQ05.251.048 | 106-0108 |
| 22U-06-22400 | YN20S00002F3 | 106-0109 |
| 7821-30-1500 | YN20S00002F4 | 165-9569 |
| 7822-30-1200 | YN20S00002F5 | 206-3305 |
| 7823-30-1400 | LQ50S00001P1 | 134-0649 |
| 7826-30-1100 | LQ50S00001P2 | 144-6670 |
| 7827-30-1000 | 8-98074-566-0 | 152-8973 |
| 7828-30-0900 | 8-98074-567-0 | 171-2540 |
| 7829-30-0800 | 4812369 | 183-4216 |
| 20Y-43-41790 | 256-7891 | 191-6527 |
| 20Y-43-41800 | 300661-00004A | 212-7890 |
| 22U-06-22410 | 21Q6-20820 | 223-1456 |
| 22U-06-22430 | K1013849 | 234-9871 |
| 4705919 | 332/G0912 | 245-3690 |
| 4341545 | 60117466 | 4542152 |
| 4614910 | YQ05.251.049 | 4659775 |
| 4468335 | YN20S00003F1 | 4669841 |
| 4656205 | 7820-30-1700 | 4371651 |
| 4716708 | 4791230 | 4482963 |
| 1751ES-12A6UC4B3S1 | SA-4761-12 | 153-6409 |
| 708-2H-25240 | 256-7891 | 214-5427 |
| 702-21-07010 | 300661-00004A | 222-1399 |
| 702-21-07311 | 21Q6-20820 | 0419-9902 |
| 702-21-07610 | K1013849 | 0419-9903 |
| 702-21-57400 | 332/G0912 | 223-8181 |
| 585-9230 | 60117466 | 224-2092 |
| 627-2304 | YQ05.251.049 | 225-0300 |
| 585-9231 | YN20S00003F1 | 253-3809 |
| 702-21-58100 | 7820-30-1700 | 231-8194 |
| 702-21-57500 | 4791230 | 198-6528 |
| 702-21-60700 | 403-0363 | 328-4314 |
| 714-07-16730 | 485-5747 | 384-3892 |
| 201-0950 | 375-4414-02 | 485-5747 |
| 708-2H-25240 | 702-21-60700 | 708-2H-25240 |
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which large heavy excavators adopt LS load sensing main pump solenoid valve 708-2H-25240? | This square flange LS proportional solenoid is specially manufactured for PC400-7 and PC450-8 large mining construction excavator variable hydraulic pump regulator oil circuit. |
| Q2 | What core LS load sensing function does this valve realize for large excavator hydraulic system? | It collects real-time load signal from main valve, adjusts pump output pressure and flow in closed loop, matches engine power output, reduces unnecessary hydraulic loss and lowers fuel consumption during long-time heavy mining work. |
| Q3 | What abnormal machine performance will occur if the original solenoid fails? | Frequent engine stall under heavy rock excavation, unstable breakout force, slow boom & bucket movement, fluctuating pump pressure and continuous sharp rise of hydraulic oil temperature. |
| Q4 | Is full disassembly of the whole hydraulic main pump required during replacement? | No, this valve is externally mounted on pump regulator block; only four fixing bolts and wiring plug need to be removed for direct replacement, low maintenance difficulty and short repair period. |
| Q5 | What anti-interference design guarantees stable signal output under harsh mine environment? | Thickened corrugated oil-resistant protective wire + fully sealed two-pin waterproof connector, integral rust-proof alloy valve body, effectively resist long-term mine dust, strong vibration and high heat interference. |
| Q6 | Can single sample be supplied for field hydraulic performance test before bulk purchase? | Yes, single-piece sample order is supported to verify installation matching and LS load sensing power regulation effect on mining excavator on site. |
Company Details
Business Type:
Manufacturer
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi... Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi...
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