3通, 直动式, 换向阀 带口4外泄 (口3到口4打开, 口2关闭)

流量: 15 gpm60 L/min. | 插孔: T-22A
DRCR : 3通, 直动式, 换向阀 带口4外泄 (口3到口4打开, 口2关闭)
技术特性 [ + ]

直动式,3通换向阀(口3到口4打开,口2关闭)为切换装置,常用在中等流量油路中。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。当口1与口4之间的压差超出设定时,此阀将切换。

  • 注意:800psi(55bar)是这款阀的最大可能设定压力。
  • 3口的最大压力需要限制在3000psi(210bar)。这是基于疲劳强度的要求而非工作运行的要求。
  • 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。
  • 2口和3口之间的流道是双向的。
  • 由于采用了直动式的设计,这些阀具备了低内部泄漏以及低先导流量损失的特性。
  • 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。
  • 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。
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-22A
系列 2
通流能力 15 gpm60 L/min.
最大操作压力 5000 psi350 bar
110 SUS (24 cSt)下的最大泄漏 3 in³/min.@3000 psi50 cc/min.@210 bar
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 1 1/8 in.28,6 mm
阀安装扭矩 45 - 50 lbf ft61 - 68 Nm
锁紧螺母六角尺寸 9/16 in.15 mm
锁紧螺母力矩 80 - 90 lbf in.9 - 10 Nm
型号重量 .65 lb0,30 kg
Seal kit - Cartridge Buna: 990022007
Seal kit - Cartridge Polyurethane: 990022002
Seal kit - Cartridge Viton: 990022006
性能曲线 [ + ]
常见问题 [ + ]

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.

There are exactly 250 Sun drops in a cubic inch or 15 in a cc.

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.

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.

DP**s and DR**s are from the reducer/reliever family and are very capable of modulating. They are not bistable.

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.

额外来源 [ + ]