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固定设定, 导压比 2:1, 标准型 平衡阀
Cavity: T-11A | Capacity:
技术规格
固定设定，带先导协助开启的3口平衡阀和可调平衡阀功能类似，不过他们名义值为预先设定。此类阀是用来控制超驰负载。它允许油液从方向阀（口2）到负载口（口1）单向自由流通，同时直动式，先导协助溢流阀功能可以控制从口1到口2的液流。口3的先导协助以先导比率的作用系数降低了溢流功能的有效设定值。此阀还被称作运动控制阀或者越过中心阀。
- 对N系列弹簧，最大推荐负载为2200psi（150bar）。N系列弹簧最大的开启压力需小于3500psi（245bar）。
- 对P系列弹簧，最大推荐负载为1700psi（120bar）。P系列弹簧最大的开启压力需小于1680psi（185bar）。
- 注意：在“范围”下面陈列的压力是指大约的平均值，并不适用于精确要求。
- 注意：对于固定设定或者手动设定的这类阀来说，开启值和复位值的差值比每个都不一样。但是，对于手调控制的阀来说，可以通过机械装置设定开启压力误差在±50psi（3.5bar）之内。而固定设定式的型号，这种压力的设定，根据范围的不一样，将会有几百psi的误差。对于任意给定范围的阀，推荐负载的最大值都为最小可设定压力除以1.3。
- 对于固定值设定的平衡阀来说，它安装后比调节型具备更短的外突出部分
- 在支腿回路中，这种固定值设定的平衡阀可以防止热膨胀情况下的油缸密封损坏。可是这种阀不适用压力匹配的双缸回路中。
- 所有的3口平衡阀，负载控制阀，以及先导开启单向阀都结构上可以相互替换。（对同样的规格情况下，他们是相同流量路径相同孔型）
- 这种阀采用小孔的方法减少先导比，所以在1000psi的情况下2,3口之间将会有40in³/min的流量。（0.7L/min在70bar的情况下）。这在主从动的回路以及在阀控液压缸的泄漏测试中都需要考虑。
- 2口的背压将会增加溢流值，增加值为（1+先导比）×压力值
- Sun浮动式的结构可以最大限度地减少由于过大的安装扭矩以及孔型加工的误差所造成的干涉现象。
- 插孔T-11A
- 系列1
- 通流能力15 gpm
- 先导比2:1
- 最大推荐负载压力See Technical Features
- 单向开启压力25 psi
- 回座时最大泄漏5 drops/min.
- 工厂默认的设定值2 in³/min.
- 运行特性标准
- 阀头部安装六角尺寸7/8 in.
- 阀安装扭矩30 - 35 lbf ft
- 型号重量.35 lb
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
Model CAD Files
Symbol CAD Files
Why is turning the adjust screw for counterbalance valves opposite of most other valves?
What parts of the Sun cartridge valve are field serviceable?
You say your valves leak 5 drops/min. How can I keep my load from drifting?
How do I determine the setting of a counterbalance valve?
How do I know how much pilot pressure is required to lower a load with a counterbalance valve?
When should I use a vented counterbalance valve?
How does Sun test a counterbalance valve for leakage?
How do I decide which pilot ratio to select?
How big is a drop of hydraulic oil?
Why can't I use a counterbalance valve in a closed loop transmission circuit?
What do you mean by the setting of a counterbalance valve and what should it be?
I don't need pilot assist. Can I just block port 3?
Can I use an atmospherically vented counterbalance valve instead of the four-port version to save on plumbing?
Why is it that your valves have pilot ratios below 10:1, while other manufacturers start at 7:1 and go up?
Why can't I block the pilot vent port? That area is positively sealed, isn't it?
Should I replace the counterbalance valve if my cylinder is drifting or moving?
I have a pilot-to-open check on a large cylinder and the decompression is violent. Can I use a counterbalance instead?
How do I size a counterbalance valve?
Can I adjust a counterbalance valve in the field?
Why do you offer 2 check valve cracking pressures?
What happens to the counterbalance valve if I have backpressure in my system?
What do you mean by hysteresis when referring to a counterbalance valve?
- CBCY 导压比 2:1, 标准型 平衡阀
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