固定节流口 压力补偿 流量控制阀 带逆流单向阀
|通流能力||50 gpm200 L/min.|
|最大操作压力||5000 psi350 bar|
|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|
|调节螺栓的内六角尺寸||5/32 in.4 mm|
|Locknut Hex Size||9/16 in.15 mm|
|Locknut Torque||80 - 90 lbf in.9 - 10 Nm|
|型号重量||1.00 lb0,45 kg|
|Seal kit - Cartridge||Buna: 990018007|
|Seal kit - Cartridge||Polyurethane: 990018002|
|Seal kit - Cartridge||Viton: 990018006|
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.
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.
- Sun FLeX™系列电磁阀&线圈
- Check Valves, Flow Control and Priority Flow Control Valves Technical Tips
- Another Optimized Solution from Sun Hydraulics!
- Sun Cartridges with EPDM Seals
- QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool
- Sun’s Cartridge Symbol Library
- Sun插装阀插孔 (551.8 KB)
- 单向阀 节流阀 优先节流阀 (553.02 KB)
- Check, Flow Control, and Priority Flow Control Valves (537.44 KB)