比例閥與傳統電路不同，負載感應中執行器上的壓力信號不斷接收，并用作分配器和泵控制的先導參考點。
因此，與傳統的回路相比，液壓系統有效地工作并且每個工作部分消耗足夠的能量。負載感應比例方向控制閥由電子馬達驅動，可以超精細地驅動滑閥。GPV比例方向控制閥使運動的應用更加平穩可靠。
本產品顯示了在40°C-104°F溫度下通過粘度為46 mm2/s–46 cSt的礦物油測量的技術規范和圖表。
比例閥GPV 130主要特點
平穩可靠
精細度高
抗污染性能強
電信號便于傳遞，能簡單地實現遠距離控制
比例閥GPV 130主要應用
挖掘機
前置裝載機
起重機
反鏟裝載機
需要比例控制的船舶
比例閥GPV 130產品技術參數
| 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.
