电比例 流量控制阀 - 常关

流量: 10 gpm40 L/min. | 插孔: T-13A
FPCC : 电比例 流量控制阀 - 常关
技术特性 [ + ]

此类阀为常闭,电比例流量阀。阀在弹簧偏置作用下关闭。线圈得电将产生一个作用在阀芯上使阀打开的力,此力与线圈电流大小成比例并且与弹簧力和液动力相平衡。在平衡状态下,此阀将形成一个与电流大小成比例的节流孔。此阀在口1到口2方向上具有很大程度上自补偿效果,在口2到口1方向接入外部压力补偿器时,此阀可提供电比例流量控制。在口2到口1方向上即使无外接补偿时,最大指令下通过公称逆向液流(口2到口1)也是可以的。

  • 常开和常闭型都有3种流量等级。
  • 运行压力最高可达5000psi。
  • 在关闭位置将有更小的泄漏等级。
  • 线圈可与SUN其他电磁流量阀互换,同时它可以以任意方向安装。
  • 这种阀具有集中人工紧急操作选择,也可无人工紧急操作。请查看一下选项选择。
  • 未获得最好性能,需要使用带有颤振信号的电流式放大器。颤振信号调节范围为100-250Hz。
  • 在使用“D”或“L”控制的方式中,这种人工的制动装置只是应用于紧急制动。这种“D”、"E"、“L”或“T”型的人工控制装置大约有7000次的机械寿命。
  • 瞬时/旋转重载选项“E”允许操作者顺时针旋转手动重载装置90度以切换阀。
  • 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。
  • 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
比例性能数据 [ + ]
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。
滞环(在颤振作用下) <4%<4%
直流驱动下滞环 <8%<8%
线性度(在颤振作用下) <2%<2%
Repeatability (with dither) <2%<2%
推荐颤振频率 140 Hz140 Hz
名义死区(一定的输出) 25%25%
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-13A
系列 1
通流能力 10 gpm40 L/min.
110 SUS (24 cSt)下的最大泄漏 6 in³/min.@3000 psi100 cc/min.@210 bar
手动紧急操作需要的力 5 lbs/1000 psi @ Port 133 N/100 bar @ Port 1
手动紧急操作动作行程 .10 in.2,5 mm
衔铁直径 .75 in.19 mm
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
型号重量(带线圈) 1.10 lb0,50 kg
Seal and nut kit - Coil Viton: 990770006
Seal kit - Cartridge Buna: 990413007
Seal kit - Cartridge EPDM: 990010014
Seal kit - Cartridge Polyurethane: 990413002
Seal kit - Cartridge Viton: 990413006
性能曲线 [ + ]
常见问题 [ + ]

We claim +/- 10%. We set to +/- 5% in production testing to allow for differences in customers' conditions. If you want accuracy, stay in the bottom 2/3rds of the range. Our 12 gpm (45 L/min.) flow controls are quite flat at 9 gpm (34 L/min.) and dead flat below 6 gpm (23 L/min.), until you get to the bottom of the range. Below about .25 gpm (1 L/min.), spool leakage and orifice conditions start to limit accuracy.

I am afraid not. Unless you are overflowing your current valve and correctly size ours, you are not likely to notice any improvement. Priority flow controls are not efficient devices. They are an easy way to get more than 1 source of oil from 1 pump but they can generate a lot of heat. Try to size your actuators so the pressures are similar on both the priority and the bypass circuits. If you can't do that, try to have the lower flow leg be the lower pressure. The pump pressure is determined by whichever leg is higher and if there is flow that is taking a pressure drop that is not doing work it is creating heat.

All flow is blocked, hence the term priority. The priority flow has to be satisfied.

The valve acts as a 2 port restrictive flow control.

The spring force in our flow controls equates to about 100 psi (7 bar). This is high enough to give the valves acceptable capacity (not really) and not too high for proper circuit operation. 100 psi (7 bar) is the spring force; at the upper end of the flow control's range, the drop through the valve will be as high as 250 psi (17 bar) before it starts modulating.

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

In a meter-in flow control circuit if the pump is set at 3000 psi and the load is 2000 psi the drop through the flow control is 1000 psi. In a meter-out circuit with the load at 2000 psi the drop through the flow control is 2000 psi.

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.
备注 [ + ]
  • 当选择Sun阀块时,请检查插装阀的间隙要求。不同的阀控制方式以及线圈要求的间隙不一样。
额外来源 [ + ]
Coil Information [ + ]

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