Model: CVIV
外泄式, 液控单向阀
Cavity: T-24A | Capacity:
技术规格
此阀为先导液控单向阀。它具有密封导压，钢质阀座并且带外接口。它允许液流从阀口（口2）向负载口（口1）自由流动，截止其反向液流。先导口（口3）的压力使阀开启从口1到口2的流道。口3需要的开启先导压力与口1的负载压力直接成正比。因弹簧腔接外接口（口4），所以阀不受口2压力影响。
- 先导压力只要只要比泄油压力大75psi（5bar），就可以将阀芯打开。
- 4口（泄油口）最大承受的压力不超过5000psi（350bar）
- 先导开启的单向阀是锁阀，并不是动作控制阀。如需要动作控制，请使用平衡阀。
- 4口先导开启单向阀和4口平衡阀是结构上是可以相互替换的。（对同样的规格情况下，他们是相同流量路径相同孔型）。但是请注意它们的外部尺寸可能不一样。
- 大约每4000次动作可以产生1滴（0.07cc）的泄漏，从先导腔泄漏进弹簧腔。
- 对于人工释放负载的控制，顺时针可减小负载。
- 配置EPDM密封圈的插装阀可用在磷酸酯液压油系统。暴露在石油基液压油或润滑油脂中会损坏密封圈。
- 提供软管爆裂保护功能，防止负载坠落，很好地锁住高压负载。
- 非常低的泄漏量。阀座和阀芯经过热处理可以有更长的使用寿命。如果负载由于阀发生了移动，说明阀座处很有可能被污染物损坏了，阀需要被替换。
- 当回路要求口间没有泄漏，可以使用这种先导完全密封的阀。
- 4口（外泄口）不应该用密封阻塞，这种渗漏最终将会造成阀动作失灵。
- 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-24A
- 系列4
- 通流能力120 gpm
- 最大操作压力5000 psi
- 先导比3:1
- .30 in³
- 110 SUS (24 cSt)下的最大泄漏1 drops/min.
- 通向阀的先导流道.09 in.
- 阀头部安装六角尺寸1 5/8 in.
- 阀安装扭矩350 - 375 lbf ft
- 调节螺栓的内六角尺寸1/8 in.
- 锁紧螺母六角尺寸7/16 in.
- 型号重量2.50 lb
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
What parts of the Sun cartridge valve are field serviceable?
I need to discharge a large accumulator. How can I increase the capacity of my discharge circuit?
What should I do if I need load holding on the rod of a high ratio cylinder?
What happens to the pilot-to-open check valve if I have back pressure in my system?
Other companies make high ratio PO checks. Why doesn't Sun?
Can I control the motion of a load with a pilot-to-open check valve?
How do I know how much pilot pressure is required to open a pilot-to-open check valve?
Where should I mount pilot-to-open check valves in my system?
Can I use pilot-to-open check valves with paired cylinders?
What about intensification?
How big is a drop of hydraulic oil?
Vented pilot-to-open check valves are insensitive to pressure on the valve port (port 2), aren't they?
Should I replace the pilot-to-open check valve if my cylinder is drifting or moving?
Where should a vented valve be vented?
What is the actual pilot ratio of Sun's pilot to open check valves?
What ever happened to the Delrin seated valves?
What does pilot ratio refer to in a pilot-to-open check valve?
Direct acting or pilot operated - what do I use?
What is the difference between pilot-to-open check valves with sealed pilots compared to standard bleed through versions?
My load keeps drifting, and every time I take your valves out, the nose seals have been blown out of their grooves.
I want to use your pilot-to-open checks on air. Will they work?
Can I use a three-port vented pilot-to-open check valve instead of the four-port version to save on plumbing?
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