EATON比例閥EFV1-12V-C系列參數(shù)介紹
Performance Data | |
Ratings and Specifications | |
Performance data is typical with fluid at 21,8 cST (105 SUS) and 49°C (120°F) | |
Typical application pressure | 210 bar (3000 psi) |
Cartridge endurance rating | 1million cycles |
Cartridge fatigue pressure (infinite life) | 210 bar (3000 psi) NFPA rated |
Rated flow | Flow rating “A” 55 L/min (14.3 USgpm) |
Internal leakage (fully closed) | 77-483 cm3 /min (5-30 in3 /min) @ 210 bar (3000 PSID) |
Nominal supply voltage | 12/24 V |
Current to fully close valve | 1500-1600 mA (12V coil), 750-800 mA (24V coil) |
Recommended dither frequency | 200-400 Hz |
Coil resistance | 4.7v /12V, 19.0 /24V |
Mass | Cartridge only 0,37 kg (0.82 lb), cartridge with coil and end nut 0,73 kg (1.62 lb) |
Temperature range | -30° to 90°C (-22° to 194°F) |
Maximum oil temperature | 120°C (248°F) |
Maximum internal coil temperature | 200°C (392°F) |
Cavity | C-12-3 |
Fluids | All general purpose hydraulics fluids such as: MIL-H-5606, SAE 10, SAE 20, DTE 24, etc. |
Filtration | Cleanliness code 18/16/13 |
Housing material (standard) | Aluminum or steel |
Hysterisis | 1 USgpm with 400Hz PWM driver |
Seal kit | 9900171-000 (Buna-N), 9900172-000 (Viton? ) |
EATON比例閥EFV1-12V產(chǎn)品介紹及選型
運作方式
該閥由提供給線圈的電流控制。在零電流下，閥從端口3到端口2完全關(guān)閉。在1500 mA（12V線圈）下，閥被視為完全打開。這是在應(yīng)用中使用的最大預(yù)期電流水平。端口1用于平衡閥芯和電樞的壓力，在任何情況下都必須將其阻塞。最大預(yù)期壓降為300 PSID。在壓降高于300 PSID時，幾乎沒有流量增加。預(yù)期的流向是從端口3到端口2。
閥從端口2到端口3的操作將產(chǎn)生流量與電流和流量與壓降的曲線，與從端口3到端口2的流量獲得的曲線明顯不同。由于閥芯和電樞是壓力平衡的，因此操作壓力不會影響閥門的工作特性，閥門的工作點僅由電流，壓降和溫度決定。
特征
硬化和磨削的工作部件可以延長使用壽命并具有良好的控制能力；緊湊的設(shè)計，低壓降IP69K堅固的線圈兼容性，連續(xù)額定值。
Operation
The valve is controlled by current supplied to the coil. At zero current, the valve is fully closed from port 3 to port 2. At 1500 mA (12V coil) the valve is considered fully open. This is the maximum intended current level for use in applications.Port 1 is used for pressure balancing the spool and armature and must be blocked in all cases. The maximum intended pressure drop is 300 PSID. At pressure drops above 300 PSID, almost no increase in flow is obtained. The intended flow direction is from port 3 to port 2.
Operation of the valve with flow from port 2 to port 3 will produce flow vs current and flow vs pressure drop curves that are significantly different from those obtained with flow from port 3 to port 2. Since the spool and armature are pressure balanced, the operating pressure does not affect the operating characteristics of the valve.The operating point of the valve is determined only by current, pressure drop and temperature.
Features
Hardened and ground working parts to give long life with good control; Compact design with low pressure drop.IP69K Tough coil compatibility, continuously rated.
EATON比例閥EFV1-12V-C系列其他常用型號：
EATON EFV1-12V-CB0-0-000-00000E00-00
EATON EFV112NCAS0000012DGE0000
EATON EFV112NCBS00000000000000
EATON EFV112NCAO00000000000000
EATON EFV112NCAS00000000000000
EATON EFV112NCB00000024DGE0000
EATON EFV1-12-CBS-0-24DGE
EATON Proportional valve NEW + ORIGINAL+ ONE YEAR WARRANTY
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EATON比例閥EFV1-12V-C系列 EFV1-12V-CB0-0-000-00000E00-00選型及介紹
