CXID | 插装阀 » Directional » 单向阀

自由流，侧孔到鼻端孔单向阀为开/关液路元件，它允许液流从进口（口2）向出口（口1）自由流动，截止其反向液流。

两口单向阀都是采用相同的孔型，不过需要注意流动的方向有可能相反
在已有阀块孔加工错误的回路中，这些阀可考虑使用为回路简化阀。旁路到鼻尖（2口到1口）的2口单向阀流量等级比鼻尖到旁路（1口到2口）的2口单向阀少30%。后者为优先推荐型号。
单向阀具备非常低的泄漏等级，其中最大泄漏量每分钟少于1滴（0.07cc/min。）
1口和2口均可承受5000psi（350bar）的压力。
配置EPDM密封圈的插装阀用于磷酸酯液压油系统。暴露在石油基液压油或润滑油脂中会损坏密封圈。
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

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	1 drops/min.0,07 cc/min.
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	2.10 lb0,95 kg
Seal kit - Cartridge	Buna: 990018007
Seal kit - Cartridge	EPDM: 990018014
Seal kit - Cartridge	Polyurethane: 990018002
Seal kit - Cartridge	Viton: 990018006

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I need to discharge a large accumulator. How can I increase the capacity of my discharge circuit?

Because of the very high ratio, the COFO has limited capacity. The discharge path is across a .050 inch (1,3 mm) diameter orifice. If you have large accumulators combined with low precharge pressures, this may not discharge the energy quickly enough. Using the COFO XDN cartridge in conjunction with an LODA XDN will provide capacity for larger applications.

How big is a drop of hydraulic oil?

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

Direct acting, pilot operated, what do I use?

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.

What parts of the Sun cartridge valve are field serviceable?

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.

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