Sun Hydraulics DOFSXHE-产品快照
- 品牌:
- Sun Hydraulics
- 型号:
- DOFSXHE
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| 供应商名称 | 电话 | 备注 |
|---|---|---|
| 上海萨弗工控设备有限公司 | 021-51095192 | |
| 上海伦萨液压设备有限公司 | 021-69008526 | |
| 升旭液压系统有限公司 | 021-51162862 | |
| 橡达油压机械（上海）有限公司 |
产品介绍
Sun Hydraulics DOFSXHE
DOFSXHE - Normally open, balanced poppet, logic element - pilot-to-close
Sun Hydraulics
This is a normally open, balanced poppet, switching element. Pilot pressure at port 3 shifts the valve to the closed position. Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both ports 1 and 2, with the external drain open and a minimum pilot pressure of 300 psi (20 bar). Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed. Any backpressure at the drain port is directly additive to the required pilot pressure for reliable operation. Leakage rate between port 1 and port 2 is very low, typically less than 10 drops/min. at 5000 psi (0,7 cc/min at 350 bar). Valve will open when the pilot pressure falls below 145 psi (10 bar). Cartridges with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals. These valves are hydraulically balanced between port 1 and port 2. All ports will accept 5000 psi (350 bar). Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations. Cavity T-22A Series 2 Capacity 30 gpm120 L/min. Minimum Pilot Pressure Required to Shift Valve 300 psi20 bar Maximum Operating Pressure 5000 psi350 bar Maximum Valve Leakage at 110 SUS (24 cSt) 10 drops/min.@5000 psi0,7 cc/min.@350 bar Pilot Volume Displacement .02 in³0,33 cc Valve Hex Size 1 1/8 in.28,6 mm Valve Installation Torque 45 - 50 lbf ft61 - 68 Nm Seal kit - Cartridge Viton: 990-022-006 Show FAQ 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. 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. Related Files Technical TipsTechnical Tips for Manufacturing Sun Cartridge Cavities (522.27 KB) Technical Tips for Logic Element Cartridges (886.29 KB) Sun's Floating Style Screw-In Cartridge (719.9 KB) Sun Model Code Explanation; 999-901-334 (343.9 KB)
Home / Sun Hydraulics - DOFSXHE - Normally open, balanced poppet, logic element - pilot-to-close
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