Assembly Build Process

Sun's Assembly Build Process allows you to configure a cartridge and manifold, or main stage and pilot stage cartridge, and build a digital assembly in three dimensional space. The resulting output of this process is the assembly product page, including configuration-specific images, symbols, product information and CAD files for download.

The Assembly Build Process can be accessed from either a cartridge or manifold product page. Only valid choices are allowed.

From a manifold page, you must first choose your cartridge function. Once you choose your function, click on the BUILD ASSEMBLY button below the WHERE TO BUY BUTTON. Once clicked, you will be presented with valid cartridges for your manifold. Select the cartridge of your choice and follow the instructions at the top of the page. If your particular combination has been generated before, the resulting assembly page will be available immediately. If not, you will be asked to enter your email address. Once the page is complete, an email will be sent to you including a link to the assembly product page.

From a cartridge product page, click on BUILD ASSEMBLY and you will be presented with a listing of compatible manifolds. In the case of main stage and pilot stage cartridges, you can either build a cartridge to cartridge assembly or a cartridge to manifold assembly. Once your choice has been made, follow the instructions at the top of the page. If your particular combination has been generated before, the resulting assembly page will be available immediately. If not, you will be asked to enter your email address. Once the page is complete, an email will be sent to you including a link to the assembly product page.

Please note that the Assembly Build Process is an automated process. It can be utilized at any time. Pages are generated typically within minutes but delays can occasionally be expected. In the event of a delay, a team at Sun will work to resolve the issue to ensure you receive your information as quickly as possible.

外接口控制, 先导式, 平衡滑阀溢流阀带口4外泄

流量: 15 gpm60 L/min. | 插孔: T-21A

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技术特性 [ + ]

外接口控制，先导控制式，平衡滑阀结构，带外泄漏溢流阀为常闭压力调节阀。当进口（口1）压力达到阀设定值，阀开始向油箱（口2）溢流，节流以调节压力。此类阀在主级活塞和先导级之间提供了一个外接口（口3），可以接入其它先导级控制阀或2通阀实现远程控制，并且外泄口（口4）使此类阀不受背压影响。此类阀压力调节精度高，压力波动随流量变化小，并且调节平稳，噪声小，响应速度适中。

口3（外接口）处的远程先导溢流阀可以控制此阀压力低于设定值。
可在口2接受最大压力；适合应用在交叉端口的溢流油路中。如果应用在交叉端口的溢流油路中，请考虑滑阀泄漏。
主级的阻尼孔被150微米的不锈钢滤网保护。
因为滑阀的泄漏，不适合使用在负载锁紧应用中。
口4处的压力直接以1:1的比例增加到阀的设定值上，口4处的压力不能超出5000 psi（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。
W和Y控制方式是可以指定或不指定特定设定值。当没有特定值设定要求时，将采用标准设定，并全范围可调。当按特定值设定时，这个特定值将会代表阀的最大设定值。
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。

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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-21A
系列	1
通流能力	15 gpm60 L/min.
最大操作压力	5000 psi350 bar
工厂默认的设定值	4 gpm15 L/min.
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
额定响应时间	10 ms10 ms
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	7/8 in.22,2 mm
阀安装扭矩	30 - 35 lbf ft41 - 47 Nm
调节螺栓的内六角尺寸	5/32 in.4 mm
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	.40 lb0,20 kg
Seal kit - Cartridge	Buna: 990021007
Seal kit - Cartridge	EPDM: 990021014
Seal kit - Cartridge	Polyurethane: 990021002
Seal kit - Cartridge	Viton: 990021006

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性能曲线 [ + ]

Performance Curve for RVCD: 外接口控制, 先导式, 平衡滑阀溢流阀带口4外泄

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常见问题 [ + ]

Can I use a kick-down relief for my system relief?

Maybe not. We build in a good amount of overlap in the kick-down reliefs to prevent false tripping. This means they are not as fast as our standard pilot operated reliefs. A direct-acting relief valve set just above the kick-down relief valve would be good insurance.

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.

SUN压力控制阀在设置压力时的误差是多少？

设置压力的误差在产品的性能参数页中都有详细说明，您可以通过点击可选产品网页中的更多产品信息到达产品性能参数页面。

Where would I use a kick-down relief?

One graphic example is on a portable grain auger for silos. When the farmer gets caught in the auger the kick-down relief trips and allows him to escape.

How big is a drop of hydraulic oil?

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

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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Related Models [ + ]