2通, 外接口操作, 换向阀 带口4外泄 和 集成T-8A控制插孔 - 常开
此类阀为常开,2通换向阀并带一个集成先导级控制插孔。它们可以单独使用或者用来驱动更大流量的先导控制换向阀或者逻辑阀。当有流量流过安装在T-8A插孔中的先导级控制阀时,此阀将切换。
- 3口可以作为工作油口。
- 2口和3口之间的流道是双向的。
- 注意:先导级应该按照正确的扭矩安装后,之后再将T-8A的先导控制部分按照要求的扭矩旋入。
- 这个阀并不是双稳态的;其在所示的两个位置之间是可以调节的。
- 相对于3口,4口必须有足够大的压力才可以操作阀动作。
- 这种-8控制结构允许先导控制阀直接通过T-8A的孔型安装进入换向阀的底部。这种先导控制阀将被单独出售,其中包括电磁先导动作,气体先导动作以及液压先导动作。具体请查阅先导控制阀。
- 技术指标中泄漏值时针对每一路的值。
- 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-22A |
系列 | 2 |
通流能力 | 15 gpm60 L/min. |
最大操作压力 | 5000 psi350 bar |
控制先导流量 | 7 - 10 in³/min.0,11 - 0,16 L/min. |
110 SUS (24 cSt)下的最大泄漏 | 2 in³/min.@1000 psi30 cc/min.@70 bar |
先导控制孔型 | T-8AT-8A |
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 |
型号重量 | .50 lb0,25 kg |
Seal kit - Cartridge | Buna: 990022007 |
Seal kit - Cartridge | Polyurethane: 990022002 |
Seal kit - Cartridge | Viton: 990022006 |
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
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.
In many circuits the directional cartridge is set to shift at a low pressure no matter how high the pilot pressure goes. If you use a DP__ , the pilot flow increases to significant amounts. A DR__ however will only consume a small amount of flow. A DP__ is useful when you want to block or open the pilot flow to shift the valve.
- 组合插装阀(先导级和主级)集成块的信息仅供参考。插装阀必须单独订购并在使用时进行装配。
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