Welcome to the official website of Shanghai Radk-Tech Hydraulic Control System Co., Ltd.
-
ABOUT USDedicated to building a company that integrates product R&D, intelligent manufacturing, sales and technical services.
-
PRODUCTSMain business includes high-end hydraulic components such as electro-hydraulic servo valves, proportional valves, proportional multi-way valves, high-performance threaded cartridge valves, balancing valves, and hydraulic integrated valve groups.
-
APPLICATIONIn the future, Norma Hydraulics will continue to strive forward, aiming to become a significant manufacturer in the high-end hydraulic components segment of the global hydraulic industry.
-
-
RT6619E（D663 D664）
Rated flow: 250~550L/min ( △P N =10bar时测)
- Product Description
-
High flow acceptance efficiency (more than 90% of the pilot stage flow is utilized), resulting in lower energy consumption
High dynamic response of the valve due to the high undamped natural frequency of the jet pipe pilot stage
Reliable performance, high pressure recovery capability of the jet pilot stage (more than 80% of the pressure recovery capability when the
rated signal is input), thus providing a larger driving force to the power stage spool and improving spool position accuracy
The minimum control pressure of the pilot stage is only 25 bar, so it has the advantage that it can be used for low-pressure systems such as
turbine control.
The high f requency response of t his s eries of v alves and t he good p osition a ccuracy of t he p ower s tage slide v alve c an improve t he s tatic
performance of the control system.
The pilot stage control oil can be controlled and discharged externally by X and Y port selection due to the large flow rate valve body flow path
design.
RT6619E
The main spool has a reduced driving area and has the following advantages:
High dynamic response with small pilot stage flow rate, which also enables fast spool movement
Position electrical feedback with LVDT
For fail-safe type proportional valves, the slide valve can be reliably secured in a safe position by spring, seating valve, or cutting off external oil pressure.The RT661 series has two-stage and three-stage configurations, and the power-stage slide valve is driven by a single-stage or two-stage pilot
servo valve. The two-stage RT661 series valves are mainly used in small signal requirements with The two-stage RT661 series valves are mainly
used in systems requiring high resolution and high dynamic response at small signals, while the three-stage valves are suitable for applications
requiring high dynamic response at larger command signals.The output flow rate of the valve is related to the input command electrical signal and the pressure drop at the throttle of the valve. For a given valve
pressure drop, the output flow rate of the valve can be calculated by the following equation
RT6619E
Product Description
Keywords
Related Products
No relevant data yet, please add it from the backend!
Service Hotline：
+86 400 997 5058
Telephone：+86-21-54832120
Address：3229 Jindu Road, Minhang District, Shanghai
WeChat ID：RADK-TECH
Email： info@radk-tech.com
Douyin QR code
