先導式溢流閥，DB10B
產(chǎn)品概述
DB10B型先導式溢流閥是一種高效、穩(wěn)定的液壓壓力控制元件，廣泛應用于各類工業(yè)液壓系統(tǒng)中。該閥采用先導控制技術，通過主閥和先導閥的協(xié)同作用實現(xiàn)精準的壓力調(diào)節(jié)，適用于中高壓工況下的溢流、穩(wěn)壓及系統(tǒng)卸荷功能。其核心特點是結構緊湊、響應靈敏，能夠在復雜工況下保持穩(wěn)定的壓力輸出，同時具備低噪聲和長壽命等優(yōu)勢。DB10B系列閥體采用高強度鑄鐵材料，內(nèi)部流道經(jīng)優(yōu)化設計，確保大流量通過時壓力損失最小化，滿足不同液壓設備的多樣化需求。816
工作原理
DB10B先導式溢流閥由主閥芯和先導閥兩部分組成。系統(tǒng)壓力油通過主閥芯下端作用，同時經(jīng)阻尼孔傳遞至先導閥錐閥。當系統(tǒng)壓力超過先導閥彈簧設定值時，錐閥開啟，主閥芯上腔壓力油通過內(nèi)部通道回流，使主閥芯抬升實現(xiàn)溢流。通過調(diào)節(jié)先導閥彈簧預緊力可靈活調(diào)整系統(tǒng)壓力。該設計既保證了高壓下的快速響應，又通過多級阻尼結構減少了壓力波動，尤其適用于需要精密壓力控制的場合，如工程機械、冶金設備等。512
技術特點
DB10B系列采用二節(jié)同心錐閥結構，主閥與先導閥均選用耐磨合金材料，確保長期使用中的密封性能。閥體集成鑄造流道設計大幅提升了流通效率，最大工作壓力可達31.5MPa，適配礦物基液壓油介質。其模塊化設計支持內(nèi)供內(nèi)排、外供外排等多種控制油組合方式，用戶可根據(jù)系統(tǒng)需求選擇不同配置。特殊的主閥芯面積比設計使得啟閉特性更為平緩，有效降低液壓沖擊，顯著延長泵閥使用壽命。1025
應用領域
本產(chǎn)品適用于機床、注塑機、船舶液壓系統(tǒng)等場景，能實現(xiàn)多級壓力控制和安全保護功能。在工程機械中可配合電磁換向閥組成卸荷回路，優(yōu)化能源利用；在冶金設備中可精準控制軋機液壓系統(tǒng)壓力，確保設備穩(wěn)定運行。其分體式結構設計便于安裝維護，對空間要求較低，可靈活適配各類液壓站布局。典型應用還包括造紙機械的壓力保持、風電設備的制動系統(tǒng)等高壓場合。719
產(chǎn)品優(yōu)勢
DB10B系列通過優(yōu)化先導閥阻尼特性和主閥復位彈簧參數(shù)，在同等通徑下具有更寬的調(diào)壓范圍和更小的壓力振擺。與傳統(tǒng)直動式溢流閥相比，其先導級控制顯著降低了調(diào)節(jié)力矩，使得手動調(diào)壓更為輕便精準。閥體表面經(jīng)特殊防銹處理，適應高溫高濕環(huán)境；所有密封件采用耐油橡膠材料，確保長期使用無泄漏。產(chǎn)品經(jīng)過嚴格出廠測試，各項性能指標均達到行業(yè)領先水平。1722
Product Introduction
The DB10B pilot-operated relief valve is a high-performance hydraulic pressure control component designed for industrial hydraulic systems. Featuring a two-stage concentric poppet structure, it combines a main valve with a pilot valve to achieve precise pressure regulation up to 31.5MPa. Its compact design integrates optimized internal flow paths to minimize pressure drop during high-flow operations, making it suitable for diverse applications requiring stable pressure control under medium-high pressure conditions. The valve body is constructed from high-strength cast iron with enhanced corrosion resistance. 828
Operational Principle
In the DB10B design, system pressure acts on the main spool while simultaneously transmitting to the pilot cone valve through damping orifices. When system pressure exceeds the preset value of the pilot spring, the cone valve opens to release pressure from the upper chamber of the main spool, causing the main valve to lift and divert excess flow. This staged pressure relief mechanism ensures rapid response during pressure surges while maintaining smooth operation. The adjustable pilot spring allows flexible pressure setting within the specified range. 525
Key Features
- Dual-stage pressure control: The pilot valve provides sensitive pressure feedback while the main valve handles high flow rates.
- Versatile configurations: Supports internal/external drain options with X and Y ports for customized hydraulic circuit integration.
- Low-noise operation: Precision-machined damping components reduce fluid turbulence and vibration.
- Maintenance-friendly: Modular design enables easy disassembly for inspection without full system shutdown.
- Wide compatibility: Suitable for mineral-based hydraulic fluids within -20°C to 80°C operating range. 1626
Typical Applications
This product series is widely implemented in injection molding machines for cavity pressure control, construction machinery for overload protection, and steel rolling mills for hydraulic cylinder pressure stabilization. Additional use cases include:
- Plastic extrusion equipment pressure regulation
- Marine hydraulic steering systems
- Wind turbine brake circuits
- Industrial press safety relief circuits
The valves compact footprint allows installation in space-constrained environments. 719
Performance Advantages
Compared to conventional relief valves, the DB10B demonstrates superior performance in:
- Pressure stability: ≤±0.5% pressure fluctuation at rated flow
- Response time: <50ms full-stroke actuation
- Leakage control: Internal leakage <5mL/min at maximum pressure
- Service life: Over 1 million cycles under standard testing conditions
The product undergoes rigorous quality verification including flow characteristic tests and endurance trials to ensure reliable operation. 1722
簡單介紹
DB10B 先導式溢流閥DB20A-1-30/31.5 DB30A-1-30/31.5 DB10B-1-30/31.5 DB20B-1-30/31.5 DB30B-1-30/31.5 DB10AG-1-30/31.5 DB20AG-1-30/31.5 DB30AG-1-30/31.5 DB10BG-1-30/31.5 DB20BG-1-30/31.5
DB10B 先導式溢流閥
的詳細介紹
DB10B 先導式溢流閥DB先導溢流閥 DB10A-1-30/31.5 DB20A-1-30/31.5 DB30A-1-30/31.5 DB10B-1-30/31.5 DB20B-1-30/31.5 DB30B-1-30/31.5 DB10AG-1-30/31.5 DB20AG-1-30/31.5 DB30AG-1-30/31.5 DB10BG-1-30/31.5 DB20BG-1-30/31.5 DB30BG-1-30/31.5 DB10A-2-30/31.5 DB20A-2-30/31.5 DB30A-1-30/31.5 DB10B-2-30/31.5 DB20B-2-30/31.5 DB30B-2-30/31.5 DB10AG-2-30/31.5 DB20AG-2-30/31.5 DB30AG-2-30/31.5 DB10BG-2-30/31.5 DB20BG-2-30/31.5 DB30BG-2-30/31.5 DB10A-3-30/31.5 DB20A-3-30/31.5 DB30A-3-30/31.5 DB10B-3-30/31.5 DB20B-3-30/31.5 DB30B-3-30/31.5 DB10AG-3-30/31.5 DB20AG-3-30/31.5 DB30AG-3-30/31.5 DB10BG-3-30/31.5 DB20BG-3-30/31.5 DB30BG-3-30/31.5 DB8A-1-30/31.5 DB15A-1-30/31.5 DB25A-1-30/31.5 DB8B-1-30/31.5 DB15B-1-30/31.5 DB25B-1-30/31.5 DB8AG-1-30/31.5 DB15AG-1-30/31.5 DB25AG-1-30/31.5 DB8BG-1-30/31.5 DB15BG-1-30/31.5 DB25BG-1-30/31.5 DB8A-2-30/31.5 DB15A-2-30/31.5 DB25A-1-30/31.5 DB8B-2-30/31.5 DB15B-2-30/31.5 DB25B-2-30/31.5 DB8AG-2-30/31.5 DB15AG-2-30/31.5 DB25AG-2-30/31.5 DB10BG-2-30/31.5 DB20BG-2-30/31.5 DB30BG-2-30/31.5 DB10A-3-30/31.5 DB20A-3-30/31.5 DB30A-3-30/31.5 DB先導溢流閥 DB10A-1-30/31.5 DB20A-1-30/31.5 DB30A-1-30/31.5 DB10B-1-30/31.5 DB20B-1-30/31.5 DB30B-1-30/31.5 DB10AG-1-30/31.5 DB20AG-1-30/31.5 DB30AG-1-30/31.5 DB10BG-1-30/31.5 DB20BG-1-30/31.5 DB30BG-1-30/31.5 DB10A-2-30/31.5 DB20A-2-30/31.5 DB30A-1-30/31.5 DB10B-2-30/31.5 DB20B-2-30/31.5 DB30B-2-30/31.5 DB10AG-2-30/31.5 DB20AG-2-30/31.5 DB30AG-2-30/31.5 DB10BG-2-30/31.5 DB20BG-2-30/31.5 DB30BG-2-30/31.5 DB10A-3-30/31.5 DB20A-3-30/31.5 DB30A-3-30/31.5 DB10B-3-30/31.5 DB20B-3-30/31.5 DB30B-3-30/31.5 DB10AG-3-30/31.5 DB20AG-3-30/31.5 DB30AG-3-30/31.5 DB10BG-3-30/31.5 DB20BG-3-30/31.5 DB30BG-3-30/31.5 DB8A-1-30/31.5 DB15A-1-30/31.5 DB25A-1-30/31.5 DB8B-1-30/31.5 DB15B-1-30/31.5 DB25B-1-30/31.5 DB8AG-1-30/31.5 DB15AG-1-30/31.5 DB25AG-1-30/31.5 DB8BG-1-30/31.5 DB15BG-1-30/31.5 DB25BG-1-30/31.5 DB8A-2-30/31.5 DB15A-2-30/31.5 DB25A-1-30/31.5 DB8B-2-30/31.5 DB15B-2-30/31.5 DB25B-2-30/31.5 DB8AG-2-30/31.5 DB15AG-2-30/31.5 DB25AG-2-30/31.5 DB10BG-2-30/31.5 DB20BG-2-30/31.5 DB30BG-2-30/31.5 DB10A-3-30/31.5 DB20A-3-30/31.5 DB30A-3-30/31.5 DB先導溢流閥 DB10A-1-30/31.5 DB20A-1-30/31.5 DB30A-1-30/31.5 DB10B-1-30/31.5 DB20B-1-30/31.5 DB30B-1-30/31.5 DB10AG-1-30/31.5 DB20AG-1-30/31.5 DB30AG-1-30/31.5 DB10BG-1-30/31.5 DB20BG-1-30/31.5 DB30BG-1-30/31.5 DB10A-2-30/31.5 DB20A-2-30/31.5 DB30A-1-30/31.5 DB10B-2-30/31.5 DB20B-2-30/31.5 DB30B-2-30/31.5 DB10AG-2-30/31.5 DB20AG-2-30/31.5 DB30AG-2-30/31.5 DB10BG-2-30/31.5 DB20BG-2-30/31.5 DB30BG-2-30/31.5 DB10A-3-30/31.5 DB20A-3-30/31.5 DB30A-3-30/31.5 DB10B-3-30/31.5 DB20B-3-30/31.5 DB30B-3-30/31.5 DB10AG-3-30/31.5 DB20AG-3-30/31.5 DB30AG-3-30/31.5 DB10BG-3-30/31.5 DB20BG-3-30/31.5 DB30BG-3-30/31.5 DB8A-1-30/31.5 DB15A-1-30/31.5 DB25A-1-30/31.5 DB8B-1-30/31.5 DB15B-1-30/31.5 DB25B-1-30/31.5 DB8AG-1-30/31.5 DB15AG-1-30/31.5 DB25AG-1-30/31.5 DB8BG-1-30/31.5 DB15BG-1-30/31.5 DB25BG-1-30/31.5 DB8A-2-30/31.5 DB15A-2-30/31.5 DB25A-1-30/31.5 DB8B-2-30/31.5 DB15B-2-30/31.5 DB25B-2-30/31.5 DB8AG-2-30/31.5 DB15AG-2-30/31.5 DB25AG-2-30/31.5 DB10BG-2-30/31.5 DB20BG-2-30/31.5 DB30BG-2-30/31.5 DB10A-3-30/31.5 DB20A-3-30/31.5 DB30A-3-30/31.5 DB先導溢流閥
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