Pilot-operated, 常闭, 电比例 节流阀 带 逆流单向阀

流量: 60 gpm240 L/min. | 插孔: T-16A
FPHK : Pilot-operated, 常闭, 电比例  节流阀 带 逆流单向阀
技术特性 [ + ]

此阀是一款先导控制,常关,电比例节流阀,带反向单向阀。电磁铁得电可以在先导级产生作用力,从而比例地打开主级的阀芯。液流方向为1口流向2口,2口到1口直接流通。

  • 运行压力最高可达5000psi。
  • 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。
  • 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。
  • 通流能力在200 psi (14 bar)压差以及最大线圈电流下测得。
  • 最大死区 (信号的百分比):A流量等级 = 39% C流量等级 = 30% E流量等级 = 46%
  • 200psi (14bar)下最大滞环:A流量等级 = 5 gpm (20 L/min) C流量等级 = 6 gpm (23 L/min) E流量等级 = 13 gpm (49 L/min)
  • 1000psi (70bar)下最小通流能力:A流量等级 = 35 gpm (140 L/min) C流量等级 = 80 gpm (320 L/min) E流量等级 = 110 gpm (416 L/min)
  • 根据系统需求,在使用FPHK和外部补偿器时,可能需要用到反向单向阀来旁路补偿器。
  • 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-16A
系列 3
通流能力 60 gpm240 L/min.
推荐颤振频率 100 Hz100 Hz
110 SUS (24 cSt)下的最大泄漏 20 drops/min.@5000 psi20 drops/min.@5000 psi
手动紧急操作需要的力 5 lbs/1000 psi @ Port 133 N/100 bar @ Port 1
名义死区(一定的输出) 25%25%
手动紧急操作动作行程 .06 in.1,50 mm
衔铁直径 .75 in.19 mm
阀头部安装六角尺寸 1 1/4 in.31,8 mm
阀安装扭矩 150 - 160 lbf ft203 - 217 Nm
型号重量 1.50 lb0,70 kg
型号重量(带线圈) 2.00 lb2.00 lb
Seal and nut kit - Coil Viton: 990770006
Seal kit - Cartridge Buna: 990016007
Seal kit - Cartridge EPDM: 990016014
Seal kit - Cartridge Polyurethane: 990016002
Seal kit - Cartridge Viton: 990016006
性能曲线 [ + ]
常见问题 [ + ]

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.

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.

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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