PB25系列溢流减压阀产品介绍
一、中文版（约450字）
PB25系列溢流减压阀是液压控制系统中的核心压力调节装置，采用模块化设计理念，适用于多种工业场景的流体压力管理需求。本产品通过精密的机械结构设计，实现了压力调节与系统保护的双重功能，在确保设备稳定运行的同时，有效延长系统使用寿命。
产品采用高强合金材料与特殊表面处理工艺，具备优异的抗磨损和耐腐蚀特性。阀体结构经过流体动力学优化，配备双通道泄压设计，可在0.5-25MPa工作范围内实现精确压力控制，调节精度达到±1.5%FS。特殊设计的阻尼腔室有效降低压力波动，配合锥形阀芯结构，确保在流量突变时仍能维持稳定的输出压力。
该系列产品配备人性化的调节机构，支持在线压力校准功能，旋钮刻度盘采用防震设计，便于工程人员在复杂工况下进行精准调校。标准接口配置包含G1/4、G3/8、G1/2三种规格，适配主流液压管路系统。内置过滤单元可拦截≥50μm的固体颗粒，特别适用于工程机械、铸造设备等存在介质污染的工业环境。
产品工作温度范围覆盖-20℃至+120℃，通过特殊密封组件设计实现全温域可靠密封。建议配套使用ISO VG32-VG68等级液压油介质，在石化、冶金、船舶动力等领域已有成熟应用案例。维护时建议定期检查弹簧预紧力状态，并保持阀体泄压通道畅通。
二、英文版（约430字）
The PB25 Series Pressure Relief/Reducing Valve
The PB25 series represents an advanced pressure management solution for hydraulic systems, integrating precision engineering with robust construction. This dual-function valve combines pressure regulation and system protection capabilities, delivering reliable performance across diverse industrial applications.
Constructed with high-strength alloy steel and enhanced surface treatment, the valve demonstrates exceptional resistance to wear and corrosion. Its hydrodynamically optimized body features dual relief channels and a tapered spool design, achieving ±1.5% FS regulation accuracy within 0.5-25MPa operational range. The integrated damping chamber effectively minimizes pressure fluctuations during flow variations.
The ergonomic adjustment mechanism incorporates shock-resistant calibration dials, enabling precise field adjustments. Standard port configurations (G1/4, G3/8, G1/2) ensure compatibility with mainstream hydraulic systems. The built-in filtration module (≥50μm particle retention) makes it particularly suitable for construction machinery and industrial environments with potential fluid contamination.
Operating reliably across -20℃ to +120℃ temperature range through specialized sealing components, the valve is recommended for use with ISO VG32-VG68 grade hydraulic fluids. Proven applications span petrochemical processing, metallurgical systems, and marine power installations. Maintenance protocols suggest periodic inspection of spring tension and ensuring unobstructed relief channels.
This product embodies modular design philosophy, allowing flexible integration into existing pressure control systems while maintaining compact dimensions (156×82×68mm). Optional accessories include pressure gauges adaptors and remote pilot operation kits for customized configurations.
