1211491 Hydraulic Swing Proportional Valve 121-1491 SKY5/G24-D For E320B E320D
Price:
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MOQ:
1 Piece
Delivery Time:
Negotiable
Brand:
ZVEZDA
Product Description
1211491 Hydraulic Swing Proportional Valve 121-1491 SKY5/G24-D For E320B E320D
It is the core proportional pressure regulating component of excavator swing system. It receives ECU PWM proportional signal to output linear control hydraulic pressure, adjust swing brake release oil supply volume, realize stepless smooth rotation and stable parking brake during rock loading and positioning operation, effectively avoid swing slipping or rigid brake locking phenomenon.
Product Details
| Specification | Detailed Information |
|---|---|
| Brand | ZVEZDA |
| Full Product Name | E320B E320C E320D E325B Excavator 24V Swing Brake Proportional Solenoid Valve 121-1491 (1211491 / SKY5/G24-D) |
| OEM Part Number | 121-1491 / 1211491 / SKY5/G24-D |
| Compatible Machine | E320B, E320C, E320D, E325B Medium Hydraulic Excavator |
| Matched Component | Main Multi-way Control Valve Swing Brake Regulator |
| Rated Voltage | DC24V |
| Condition | 100% Brand New Aftermarket OEM Equivalent Complete Assembly |
| Origin | Guangdong, China |
| Core Material | Full Ion Nitride Hardened Multi-groove Alloy Spool + Low Loss Pure Copper Electromagnetic Coil |
| Wiring Connector | Yellow Mark 2-Pin Fully Sealed Waterproof Plug |
| Installation Position | Excavator Multi-way Valve Flange Mounted Swing Brake Proportional Valve |
| Shipment Lead Time | Dispatched within 1–7 working days after payment confirmation |
| Outer Packaging | Neutral Export Carton + Shockproof EPE Foam Inner Liner |
Universal Spare Part Numbers
| Series 1 PN | Series 2 PN | Universal Spare Part Numbers |
|---|---|---|
| 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-43-41800 | 300661-00004A | 212-7890 |
| 708-2H-25053 | 21Q6-20820 | 214-5620 |
| 702-21-07010 | K1013849 | 0419-9902 |
| 702-21-07311 | 332/G0912 | 0419-9903 |
| 702-21-07610 | 60117466 | 223-8181 |
| 702-21-57400 | YQ05.251.049 | 224-2092 |
| 585-9230 | YN20S00003F1 | 225-0300 |
| 627-2304 | 7820-30-1700 | 253-3809 |
| 585-9231 | 4791230 | 231-8194 |
| 702-21-58100 | 403-0363 | 198-6528 |
| 702-21-57500 | 485-5747 | 328-4314 |
| 702-21-60700 | 375-4414-02 | 384-3892 |
| 714-07-16730 | 485-9850-03 | 485-5747 |
| 201-0950 | 485-9850-03 | 491-0908 |
| 25/220804 | 491-0908 | 553-5204 |
| 25/220994 | 25/220804 | 25/220994 |
| 31Q6-20131 | 25/220994 | 31Q6-91220 |
| 31Q6-91220 | 31Q6-20131 | 086-1879 |
| 086-1879 | 31Q6-91220 | 31765-FC000 |
| 31765-FC000 | 086-1879 | 053400-0745 |
| 053400-0745 | 31765-FC000 | 419-15-47221 |
| 419-15-47221 | 053400-0745 | KDRDE5K-20/40C04 |
| KDRDE5K-20/40C04 | 419-15-47221 | 31Q6-91720 |
| 31Q6-91720 | KDRDE5K-20/40C04 | 25/220804 |
| 25/220804 | 31Q6-91720 | 25/974628 |
| 25/974628 | 25/220804 | 4I-5674 |
| 4I-5674 | 25/974628 | 096-5945 |
| 096-5945 | 4I-5674 | 111-9916 |
| 111-9916 | 096-5945 | 111-9100 |
| 111-9100 | 111-9916 | 56D-15-35220 |
| 56D-15-35220 | 111-9100 | DRE2K-X5-937-16 |
| DRE2K-X5-937-16 | 56D-15-35220 | 116-3526 |
| 116-3526 | DRE2K-X5-937-16 | 121-1490 |
| 121-1490 | 116-3526 | 121-1491 |
Frequently Asked Questions
| No. | Question | Standard Answer |
|---|---|---|
| Q1 | Which excavators match 24V swing proportional solenoid valve 121-1491 SKY5/G24-D? | This flange-mounted rotary brake proportional valve fits E320B, E320C, E320D, E325B medium excavators equipped with standard multi-way hydraulic valve block. |
| Q2 | What core function does this solenoid realize? | It controls the swing brake release pressure proportionally, balances flexible rotary movement and reliable parking brake according to real-time working load. |
| Q3 | What abnormal rotary faults will occur when this solenoid fails? | Swing cannot rotate freely, brake cannot fully release, rotary slipping during composite operation, obvious swing jitter and continuous high hydraulic oil temperature. |
| Q4 | Is full disassembly of the multi-way valve required during replacement? | No, external flange fixed design; only remove four fixing bolts and disconnect the wire plug, no need to split the internal main valve body. |
| Q5 | What wear-resistant and high-temperature resistant process prolong service life? | The whole spool undergoes ion nitriding hardening treatment, matched double high temperature HNBR oil-resistant sealing rings and fully sealed two-pin waterproof plug to resist long-term oil mist and vibration. |
| Q6 | Are 121-1491 and 1211491 interchangeable part numbers? | Yes, the two codes are cross reference spare part numbers, corresponding to the same complete swing brake proportional solenoid assembly and can be replaced mutually. |
| Q7 | How to quickly detect coil damage before installation? | Use a multimeter to measure coil resistance, normal range 14–14.8 ohms; infinite resistance means open circuit, resistance below 10 ohms indicates internal short circuit and cannot be installed. |
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Company
Guangzhou Qichao Machinery Parts Co., Ltd.
Location
825-827, Zhuji International Machinery City, No.36 Zhuji Road, Tianhe District, Guangzhou, China
Contact Person
Sales