Sun Hydraulics DRBOXFN 换向阀-产品快照
- 品牌:
- Sun Hydraulics
- 型号:
- DRBOXFN
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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 DRBOXFN 换向阀
DRBOXFN - 3-way, direct-acting, fixed setting, directional valve with drain to port 4 (1 blocked, 2 to 3 open)
Sun Hydraulics
Direct-acting, 3-way directional cartridges (1 blocked, 2 to 3 open) are switching devices typically used in moderate flow circuits. They can be used by themselves or to actuate larger pilot-operated directional cartridges or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 exceeds the setting. Port 3 can be used as a work port. The flow path between port 2 and port 3 is bidirectional. Because of their direct-acting design, these cartridges feature low internal leakage and low pilot flow consumption. Direct-acting and pilot-operated versions of these valves are interchangeable. They fit the same cavities and have the same flow paths. Pressure at port 4 is directly additive to the setting of the valve. This valve is not bistable; it is capable of modulating between the two positions shown. The flow path between port 1 and port 2 is bidirectional. Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits. 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-21A Series 1 Capacity 7 gpm28 L/min. Factory Pressure Settings Established at 4 gpm15 L/min. Maximum Operating Pressure 5000 psi350 bar Maximum Valve Leakage at 110 SUS (24 cSt) 2 in³/min.30 cc/min. Valve Hex Size 7/8 in.22,2 mm Valve Installation Torque 30 - 35 lbf ft41 - 47 Nm Model Weight .55 lb0,25 kg Seal kit - Cartridge Viton: 990-021-006 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. I used a DP** in a circuit but it hangs. What happened? DP**s and DR**s are from the reducer/reliever family and are very capable of modulating. They are not bistable. Where would I use a DR__ instead of a DP__? In many circuits the directional cartridge is set to shift at a low pressure no matter how high the pilot pressure goes. If you use a DP__ , the pilot flow increases to significant amounts. A DR__ however will only consume a small amount of flow. A DP__ is useful when you want to block or open the pilot flow to shift the valve. 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. Related Files Technical TipsTechnical Tips for Manufacturing Sun Cartridge Cavities (522.27 KB) Technical Tips for Pilot Controlled Directional Cartridges (629.97 KB) Sun's Floating Style Screw-In Cartridge (719.9 KB) Sun Model Code Explanation; 999-901-334 (343.9 KB)
Home / Sun Hydraulics - DRBOXFN - 3-way, direct-acting, fixed setting, directional valve with drain to port 4 (1 blocked, 2 to 3 open)
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