比例阀与传统电路不同，负载感应中执行器上的压力信号不断接收，并用作分配器和泵控制的先导参考点。
因此，与传统的回路相比，液压系统有效地工作并且每个工作部分消耗足够的能量。负载感应比例方向控制阀由电子马达驱动，可以超精细地驱动滑阀。GPV比例方向控制阀使运动的应用更加平稳可靠。
本产品显示了在40°C-104°F温度下通过粘度为46 mm2/s–46 cSt的矿物油测量的技术规范和图表。
比例阀GPV 130主要特点
平稳可靠
精细度高
抗污染性能强
电信号便于传递，能简单地实现远距离控制
比例阀GPV 130主要应用
挖掘机
前置装载机
起重机
反铲装载机
需要比例控制的船舶
比例阀GPV 130产品技术参数
| Max. pressure
| Port P continuous 1) | 350 bar | [5075 psi] |
| Port P intermittent 5) | 400 bar | [5800 psi] | |
| Port A/B continuous | 350 bar | [5075 psi] | |
| Port A/B intermittent | 420 bar | [6090 psi] | |
| Port T, static/dynamic | 25/40 bar | [365/580 psi] | |
| Oil flow rated | Port P 3) 4) | 140/230 l/min. | [37/61 US gal/min] |
| Port A/B, with press. comp.2) | 100 l/min. | [26.4 US gal/min] | |
| Port A/B, without press. comp. | 130 l/min. | [34 US gal/min] | |
| Spool travel, standard | ± 7 mm | [±0.28 in] | |
| Spool travel, float position | Proportional range | ± 4.8 mm | [±0.19 in] |
| Float position | ± 8 mm | [±0.32 in] | |
| Dead band, flow control spools | Standard | ± 1.5 mm | [±0.06 in] |
| Linear characteristic | ± 0.8 mm | [±0.03 in] | |
| Max. internal leakage at 100 bar [1450 psi] and 21mm2/s[102 SUS]
| A/B ® T without shock valve | 20 cm3/min. | [1.85 in3/min] |
| A/B ® T with shock valve | 25 cm3/min. | [2.15 in3/min] | |
| Oil temperature (inlet temperature) | Recommended temperature | 30 ® 60 °C | [86 ® 140 °F] |
| Min. temperature | -30 °C | [-22 °F] | |
| Max. temperature | +90 °C | [194 °F] | |
| Ambient temperature | -30 ® 60 °C | [-22 ® 140 °F] | |
| Oil viscosity
| Operating range | 12 – 75 mm2/s | [65 – 347 SUS] |
| Min. viscosity | 4 mm2/s | [39 SUS] | |
| Max. viscosity | 460 mm2/s | [2128 SUS] | |
| Filtration (See chapter Filtration) | Max. contamination(ISO 4406) | 23/19/16 | 23/19/16 |
| Oil consumption in pilot oil pressure reduction valve | 5 l/min. | [0.13 US gal/min] | |
- With PVSI end plate. With PVS end plate max. 300 bar [4351psi].
- For 130 l/min contact GMS Product Application Engineering.
- In open circuit systems with short P-hoses/tubes, attention should be paid to pressure peaks at flows >100 l/min [26.4 US gal/min].
- For system with mid inlet PVPVM.
- Intermittent pressure at max. 250,000 cycles of full GPV life time cycles, with PVSI end plate. The maximum intermittent pressure at max. 250,000 cycles stresses the need to confirm application duty cycle before proceeding with specification. For further information contact GMS Product Application Engineering.
