跳合, 先导式, 平衡滑阀 溢流阀
![RQGB : 跳合, 先导式, 平衡滑阀 溢流阀](https://cmsimages.sunhydraulics.com/cartg_rqgb.gif)
自动跳合溢流阀与电路中的断路器功能类似。当进口(口1)压力超过阀的设定值,此类阀会完全打开并且保持全开状态,液流从口1到油箱(口2)自由流通。只要口1压力超过口2压力,阀就会一直保持打开状态。要想重新设定此类阀,口1到口2的液流必须停止而且口2的压力必须等于或者大于口1的压力。
- 所有2口溢流阀(除了先导溢流阀)在尺寸和功能上可互换(如:给定的外形结构尺寸阀拥有相同的流道,相同的插孔)。
- 通过阀的液流必须停止,阀才能回座。
- 主级的阻尼孔被150微米的不锈钢滤网保护。
- 不适合使用在负载锁紧应用中。
- 如应用在系统的驱动端侧,通过阀的液流必须停止,阀才能回座。如果应用在一个系统的泵端侧,泵必须关闭,阀才能回座。
- 油箱口(口2)处的背压直接以1:1的比例增加到阀的设定值上。
- 耐腐蚀螺纹插装阀是设计用在易腐蚀环境中且阀型号带后缀/AP以用来区分。(参考下面选项)。这些阀的阀体是用带钛或铜的不锈钢来制造。内部零件是由与标准阀件相同的碳钢含铅合金制造。更多的细节,请参考结构材料页面。
- 利用Sun浮动结构减少由于过量安装扭矩或插孔/插装阀加工误差带来的内部零件粘结的可能性。
插孔 | T-3A |
系列 | 2 |
通流能力 | 50 gpm200 L/min. |
最大操作压力 | 5000 psi350 bar |
工厂默认的设定值 | Kick down pointKick down point |
110 SUS (24 cSt)下的最大泄漏 | 3 in³/min.@1000 psi50 cc/min.@70 bar |
额定响应时间 | 25 ms25 ms |
调节 - 从最小设定到最大设定的顺时针圈数 | 55 |
阀头部安装六角尺寸 | 1 1/8 in.28,6 mm |
阀安装扭矩 | 45 - 50 lbf ft61 - 68 Nm |
调节螺栓的内六角尺寸 | 5/32 in.4 mm |
锁紧螺母六角尺寸 | 9/16 in.15 mm |
锁紧螺母力矩 | 80 - 90 lbf in.9 - 10 Nm |
型号重量 | .50 lb0,25 kg |
Seal kit - Cartridge | Buna: 990203007 |
Seal kit - Cartridge | Polyurethane: 990003002 |
Seal kit - Cartridge | Viton: 990203006 |
One graphic example is on a portable grain auger for silos. When the farmer gets caught in the auger the kick-down relief trips and allows him to escape.
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
Maybe not. We build in a good amount of overlap in the kick-down reliefs to prevent false tripping. This means they are not as fast as our standard pilot operated reliefs. A direct-acting relief valve set just above the kick-down relief valve would be good insurance.
Direct acting valves are used to prevent over pressure and pilot operated valves are used to regulate pressure. If you are unsure, use a direct acting valve. Sun's direct acting valves are very fast, dirt tolerant, stable, and robust. Sun's pilot operated valves are moderately fast, they have a low pressure rise vs. flow curve, and they are easy to adjust.
设置压力的误差在产品的性能参数页中都有详细说明,您可以通过点击可选产品网页中的更多产品信息到达产品性能参数页面。
- 请勿用于负载保持场合。
- 对于采用O控制(旋钮调节,带面板锁)的系列1插装阀,面板上需要留一个直径0.75 in. (19 mm)的孔。
- Pressure Relief and Regulating Cartridge Valve Technical Tips
- Another Optimized Solution from Sun Hydraulics!
- Get the relief you need. Adjustable. Ventable. Blockable. FLeX-ible.
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