2通, 2-stage, 电磁操作方向 锥阀 阀 - flow 1-2 (740 Series)

流量: 120 gpm480 L/min. | 插孔: T-18A
DFFI : 2通, 2-stage, 电磁操作方向 锥阀 阀 - flow 1-2 (740 Series)
技术特性 [ + ]

This solenoid controlled, 2-way, 2-position cartridge is a pilot-operated, poppet style directional valve with reverse free flow check. It is available in either a normally open or normally closed configuration. Due to its poppet style construction, it has extremely low leakage.

This valve is designed to be used with 740 and 747 Series coils.

  • 电磁套筒组件的疲劳强度至5000 psi(350 bar)。
  • 阀表现出极低的泄漏速率;小于10滴/分钟。@5000 psi(0,7 cc/min @ 350 bar)。
  • 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。
  • 该类阀的所有配置均配备锌-镍镀层,能够提供1000小时盐雾保护。
  • 线圈插头提供最高IP69K防护等级,详细信息见线圈产品页。
  • 该阀具有手动超越控制选项,详情见“配置”部分。
  • 带D或L控制的型号,手动重载中的止动机构是用来作临时驱动用途。
  • 此阀采用湿式衔铁线圈设计。这意味着衔铁周围的工作流体介质将曝露在线圈所产生热场中。如果线圈长时间通电,这将是一个影响因素。一些液体,特别是水/乙二醇混合物,会在长时间高温下分解并形成凡立水,而这将会影响阀的功能。
  • 不同的线圈接头与电压选项都是可选的,也同时可选带或不带浪涌保护。
  • 线圈的独特电磁设计使电磁阀有更高的效率,单位瓦特产生高的阀芯驱动力,从而使阀有可靠的切换。
  • 线圈可以双向安装到螺线管上。
  • 利用Sun浮动结构减少由于过量安装扭矩或插孔/插装阀加工误差带来的内部零件粘结的可能性。
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-18A
系列 4
通流能力 120 gpm480 L/min.
最大操作压力 5000 psi350 bar
110 SUS (24 cSt)下的最大泄漏 10 drops/min.@5000 psi0,7 cc/min.@350 bar
单向开启压力 50 psi3,5 bar
额定响应时间 30 ms30 ms
切换频率 15,000 max. cycles/hr15,000 max. cycles/hr
衔铁直径 .63 in.16 mm
阀头部安装六角尺寸 1 5/8 in.41,3 mm
阀安装扭矩 350 - 375 lbf ft474 - 508 Nm
型号重量 2.80 lb1,30 kg
Seal kit - Cartridge Buna: 990018007
Seal kit - Cartridge EPDM: 990018014
Seal kit - Cartridge Viton: 990018006
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.
额外来源 [ + ]
Coil Information [ + ]

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