双向, 直动式溢流阀

流量: 25 gpm95 L/min. | 插孔: T-10A
RBDA : 双向, 直动式溢流阀
技术特性 [ + ]

该双向,直动式溢流阀为常闭式,用于限压以保护液压元件。当1口和2口的压差超过阀的设定,阀开启,通过节流限制压力上升,双向起作用。

  • 1口到2口的额定流量为25 GPM (95 L/min)。2口到1口的额定流量为10 GPM (40 L/min)。
  • 推荐最小设定为1200 psi (85 bar)。注意:设定低于1200 psi (85 bar)时,阀额定最大瞬时流量只有25 GPM (95 L/min)。
  • 因为调节发生在阀的内部,所以这些阀不会出现与气蚀相关的问题,即噪音和阀块腐蚀。
  • 调节螺杆的密封暴露在系统压力下。这意味着只有当压力被移除时,此阀才可被调节。设定流程为;检查设定,移除压力,调节阀,检查新设定。
  • 此阀对变动的油液温度和油液污染不敏感。
  • 选择溢流阀的弹簧范围时,为确保最大的可重复性,目标溢流设定值要接近最小和最大压力的中间范围。
  • 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。
技术数据 [ + ]
注意:技术参数可能因产品配置而不同。请查看产品配置部分。
插孔 T-10A
系列 1
通流能力 25 gpm95 L/min.
最大操作压力 5000 psi350 bar
工厂默认的设定值 4 gpm15 L/min.
回座时最大泄漏 10 drops/min.0,7 cc/min.
额定响应时间 2 ms2 ms
复位 >85% of setting>85% of setting
滞环 ≤ 3 %≤ 3 %
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 7/8 in.22,2 mm
阀安装扭矩 30 - 35 lbf ft41 - 47 Nm
型号重量 .40 lb0,20 kg
美国专利号# 11,384,85711,384,857
Seal kit - Cartridge Buna: 990310007
Seal kit - Cartridge Viton: 990310006
性能曲线 [ + ]
常见问题 [ + ]

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。

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.

Only external seals are serviceable.  Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.
额外来源 [ + ]