单向阀,B-25(B)
产品概述
单向阀B-25(B)是一种用于控制流体单向流动的液压元件,适用于工业液压系统、机械设备及各类流体控制场景。其核心功能是确保流体(如油液)仅沿单一方向通过,反向流动时自动封闭,从而有效防止介质倒流或系统压力波动。该产品采用高强度弹簧与精密阀芯结构,确保在0.2~0.6MPa的开启压力范围内稳定工作,同时兼具低压力损失(≤0.1MPa)和长寿命特性。B-25(B)可适配管式或板式安装,广泛用于回油路背压控制、执行机构保压等场合,提升系统运动平稳性并减少停机时的空气侵入风险。
英文描述:
The B-25(B) check valve is a hydraulic component designed for unidirectional flow control in industrial systems and machinery. It ensures fluid (e.g., oil) passes only in one direction while automatically blocking reverse flow, preventing backflow and pressure fluctuations. Featuring a robust spring mechanism and precision valve core, it operates stably within an opening pressure range of 0.2~0.6MPa with minimal pressure loss (≤0.1MPa). Compatible with threaded or plate-mounted configurations, it is widely applied in return-line backpressure control and actuator pressure maintenance, enhancing system stability and reducing air ingress during shutdowns. 11727
结构与材质
B-25(B)采用直通式或直角式设计,阀体材质为优质铸铁或不锈钢,内部密封元件选用耐磨合金或工程塑料,确保在高压(≤6.3MPa)和常温至中温环境下长期可靠运行。其结构紧凑,安装便捷,阀芯与阀座经精密研磨配合,反向密封性优异,泄漏量极低。产品适用于水、油类及弱腐蚀性介质,且维护简单,仅需定期清理阀腔杂质即可恢复性能。
英文描述:
The valve features a straight-through or right-angle design, with a body crafted from high-grade cast iron or stainless steel. Sealing components utilize wear-resistant alloys or engineering plastics, ensuring durability under pressures up to 6.3MPa and moderate temperatures. Its compact structure facilitates easy installation, while the precision-matched valve core and seat deliver exceptional sealing with minimal leakage. Suitable for water, oil, and mildly corrosive media, maintenance involves simple periodic cleaning to preserve performance. 71218
应用场景
B-25(B)单向阀广泛应用于工程机械、冶金设备、注塑机等液压系统的回油路中,用于建立背压以改善执行元件运动的稳定性,并防止停机时空气混入油路。其坚固设计也适用于矿山机械等高振动环境,同时可作为小型系统的简易背压阀使用。
英文描述:
This valve is commonly deployed in hydraulic systems of construction machinery, metallurgical equipment, and injection molding machines. It stabilizes actuator movement by creating backpressure in return lines and prevents air entrainment during shutdowns. Its rugged construction suits high-vibration environments like mining equipment, while also serving as a compact backpressure solution for small-scale systems. 21922
产品特点
- 可靠密封:锥形阀芯与阀座硬密封设计,确保零泄漏。
- 快速响应:弹簧优化的动态特性实现毫秒级闭阀响应。
- 宽压适应:兼容0.2~6.3MPa工作压力范围。
- 低维护:模块化结构支持快速拆装维护。
英文描述:
- Reliable Sealing: Hard-sealed cone valve core guarantees zero leakage.
- Rapid Response: Optimized spring enables millisecond-level closing.
- Pressure Adaptability: Compatible with 0.2~6.3MPa working pressure.
- Low Maintenance: Modular design allows quick disassembly. 112127
简单介绍
B-25(B) 单向阀背压阀的结构与单向阀相同,只是选用较强的弹簧,使之产生背压。P1为进油口,P2为出油口。下面只列出背压阀之技术规格,其余请按同一流量查阅单向阀
B-25(B) 单向阀
的详细介绍
B-25(B) 单向阀
一、用途
背压阀一般装于液压系统的回油路中,形成回油路上一定的背压力,以增加工作机构运动的平稳性。回油路上装有背压阀,在停车时可防止空气从回油路侵入,避免重新开车空气被显著压缩面产生运动不均匀。背压阀的结构与单向阀相同,只是选用较强的弹簧,使之产生背压。
P1为进油口,P2为出油口。下面只列出背压阀之技术规格,其余请按同一流量查阅单向阀。

三、外型尺寸
与单向阀相同
压力阀的使用与维修
1、溢流阀安装得离油泵越近越好,回油管道越短越好,以便能调到低压力,并在卸荷时亦可得到小卸荷压力。
2、溢流阀的回油管路的管接头一定要拧紧,并使油管浸入油液内,以免把空气带入油内而引起压力振摆及泵发出响声。
3、压力阀滑阀上的小孔及阀座上的小孔易堵塞,堵塞时对溢流阀来说,会引起无限升压而引起事故,对其他压力阀则影响正常工作。因此使用油液必须清洁。当小孔堵塞时,应卸下来清洗,如果油太脏,则应换油或滤油,以便正常工作。
4、对力振摆或噪音可能是锥阀磨损而引起,可以换一个;也可能是油液中混入空气,则系统中所有油管必须拧紧,回油管必须浸入油液内。
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