Sun Hydraulics DVBA8FV 通气阀

Sun Hydraulics DVBA8FV 通气阀-产品快照

品牌:
Sun Hydraulics
型号:
DVBA8FV

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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

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产品介绍

Sun Hydraulics DVBA8FV 通气阀

DVBA8FV - 2-way, vent-to-operate, directional valve with internal drain to port 3 and integral T-8A control cavity - normally open

Sun Hydraulics

This valve is a normally open, 2-way directional cartridge that incorporates an integral pilot control cavity. It may be used by itself or to actuate larger pilot-operated directional cartridges or logic elements. The valve shifts when there is flow through the pilot control cartridge installed in the T-8A cavity. NOTE: The main stage valve should first be installed to the correct torque value followed by the T-8A pilot control section into the main stage valve to its required torque value. This valve is not bistable; it is capable of modulating between the two positions shown. Pressure at port 3 may oppose the opening of the valve. Because of this, port 3 may not be useable as a work port in your circuit. If this is a consideration, the 4 port version of this valve may be a solution. There must be a pressure source at port 1, relative to port 3, to shift the valve. The -8 control option allows the pilot control valve to be incorporated directly into the end of the directional cartridge via the T-8A cavity. These pilot control cartridges are sold separately and include solenoid operation, air pilot operation, and hydraulic pilot operation. See Pilot Control Cartridges. Leakage listed in technical data is for each path. 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-11A Series 1 Capacity 7 gpm28 L/min. Maximum Operating Pressure 5000 psi350 bar Control Pilot Flow 7 - 10 in³/min.0,11 - 0,16 L/min. Maximum Valve Leakage at 110 SUS (24 cSt) 2 in³/min.@1000 psi30 cc/min.@70 bar Pilot Control Cavity T-8AT-8A Valve Hex Size 7/8 in.22,2 mm Valve Installation Torque 30 - 35 lbf ft41 - 47 Nm Model Weight .50 lb0,25 kg Seal kit - Cartridge Viton: 990-011-006 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 - DVBA8FV - 2-way, vent-to-operate, directional valve with internal drain to port 3 and integral T-8A control cavity - normally open

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