Model: MBIA
导压比3:1 , 负载作用, 负载控制 阀
Cavity: T-19A | Capacity:
技术规格
带先导协助开启的负载反作用，负载控制阀结合了两种阀的功能；单向阀与溢流阀。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。
- 负载反应负载控制阀的设定值都为最大负载压力值的1.3倍。
- H范围的最大推荐负载压力为3080 psi (212 bar)。
- J范围的最大推荐负载压力为3850 psi (265 bar)。
- 顺时针旋转降低设定值，减小负载。
- 对于H系列，完全泄压设置值为1000psi（70bar）；对于J系列来说，最小为2000psi。
- 2口的背压将直接叠加到有效溢流压力上,此时压力值为（1+先导比）×背压。
- 此阀功能上是3口平衡阀。阀座形式是锥阀结构，动作调节过程又是滑阀结构，所以其集结了两种结构的优点。
- 这类阀与锥阀芯的结构相比，可以调节更为广泛的流量。对于这种长距离的冲击动作，这里设计了单向的阻尼结构，令其开启更平稳，关闭更迅速。
- 耐腐蚀插装阀适用于在腐蚀性环境中使用，并通过型号代码后缀/AP标识外部不锈钢组件，或/LH标识外部镀锌镍镀组件。有关选项，请参阅配置部分。欲了解更多详情，请查看位于技术资料下的结构材料页面。
- 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）。
- Sun负载控制阀和平衡阀都可以之间安装于执行器外壳处，一次给执行器、回路更安全的保护。
- 此阀在所有口之间完全密封。
- 这款阀有完全的溢流能力。
- 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-19A
- 系列4
- 通流能力120 gpm
- 最大操作压力5000 psi
- 先导比3:1
- 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.
- 调节 - 从最小设定到最大设定的逆时针圈数7
- 复位≥77% of setting
- 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7/32 in.
- 锁紧螺母六角尺寸3/4 in.
- 锁紧螺母力矩25 - 30 lbf ft
- Seal kit - Cartridge
- Seal kit - Cartridge
- Seal kit - Cartridge
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?
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技术指导
技术信息
- MBIAX 固定设定, 导压比 3:1, 负载作用, 负载控制阀