P9比例/开关压电阀
电压控制压电片形变，无发热元件，寿命>60亿次，紧凑设计30x19x7.7mm，质量6g，供气压力-1.0/1.2bar，流量1.5L/Min，超低功耗动作电流24VDC@10μA，维持电流0μA,响应时间2mS，可用于小流量压力/真空/流量控制阀或先导阀。
压电阀片P9由两片极性相反的压电陶瓷片粘接到电极上，单端固定，形成悬臂机构，通电时一片伸长一片收缩，将位移放大。薄片上不加电压时，压缩空气输入孔1封闭，输出孔2和大气想通，输出气压为0；薄片上加一定电压时由于压电陶瓷的材料特性，薄片上产生几十到几百微米的弯曲变形，大气孔3封闭，压缩空气有1流向输出孔2，产生输出气压信号，薄片的弯曲程度随着施加电压的大小变化而变化，输出口2的气压也发生响应的变化，所以P9先导阀片可以用作开关阀或比例阀。响应时间<2mS，在1.2bar的压力线流量1.5L/Min。
同样的道理，P9可以用于真空度的控制。
Standard Versions 标准版本 Special Versions 特殊版本
Proportional valve 比例型 Special pressure ranges on request 请咨询
Switching valve 开关型
| Characteristics Pressures are quoted as gauge pressure | ||||
| Characteristics | Symbol | Unit | Description | |
| General Features | ||||
| System | Directly actuated 3/2 way poppet valve with Piezoactor, overlaping, normally closed (NC) | |||
| Housing | Plastic | |||
| Mounting | Flange (see dimensional drawing) | |||
| Port size | = NW 0.33 | |||
| Weight | g | 6 | ||
| Flow direction | On: from 1 to 2 Off: from 2 to 3 |
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| Installation position | in any position | |||
|
Ambient |
Vmin Vmax |
°C °C |
-10 |
Note: When using below freezing point it is necessary to consult us. (-30°C to +80°C on request) |
| Pneumatic Characteristics | ||||
| Operating pressure | PN | bar | 1.2 (other pressures between 0 and 2.0 bar on request) | |
| Nominal flow@20℃ | QN | l/min | 1.5 | |
| Medium | Filtered air (5μ) * - dewpoint 10K under ambient temperature |
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| Leakage@20℃ | QL | l/min | On: 0.15 max Off: 0.10 max |
|
| Electrical Characteristics | ||||
| Operating voltage | UL | V | +/-24 DC control advice to be considered |
|
| Capacity | C | nF | < 100 | |
| Switching energy | E | mWs | 0.029 24VDC/10μA | |
| Holding energy | P | W | 0 0μA | |
| Switching time | t | ms | < 2 | |
| Connection | Contact pins – Ø0.8 mm | |||
| * other fluids on request | ||||
| Description |
Symbol |
Order Instructions | |
| Type | Order No. | ||
| Switching valve, normally closeed (+pole on the left side) |  |
P9-NG-S-L | PS11010-11L |
| Proportional valve, normally cloesed (+pole on the right and left side) |  |
P9-NG-P-LR | PS11010-31LR |
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