天榆液壓氣動 Y-25B 中底壓溢流閥是一款專為中低壓液壓系統(tǒng)設(shè)計的壓力控制裝置，適用于工作壓力范圍為 0.5-6.3MPa 的工業(yè)場景。該產(chǎn)品采用直動式結(jié)構(gòu)設(shè)計，通過優(yōu)化閥芯幾何形狀和彈簧匹配系統(tǒng)，實現(xiàn)了壓力調(diào)節(jié)精度與響應(yīng)速度的平衡，可有效保障液壓系統(tǒng)的穩(wěn)定運行。

其主體采用高強度球墨鑄鐵材質(zhì)，關(guān)鍵密封件配置進口丁腈橡膠材料，在保持結(jié)構(gòu)緊湊（外形尺寸控制在 Φ52×120mm 以內(nèi)）的同時，兼具耐磨損和抗沖擊特性。閥體內(nèi)部流道經(jīng)過 CFD 流體仿真優(yōu)化，有效降低壓力損失，實測穩(wěn)態(tài)壓力波動值不超過設(shè)定壓力的 ±3%。調(diào)節(jié)機構(gòu)采用帶刻度盤的手輪設(shè)計，支持 0.2MPa 級差的無級調(diào)壓，便于操作人員根據(jù)工況需求進行精準(zhǔn)調(diào)整。

Y-25B 中底壓溢流閥特別適用于工程機械行走系統(tǒng)、農(nóng)業(yè)設(shè)備液壓回路、小型沖壓機床等場景，可發(fā)揮系統(tǒng)過載保護、壓力維持和壓力分級控制等多重功能。安裝接口符合 GB/T2877 標(biāo)準(zhǔn)，支持板式或管式兩種連接方式，適配國內(nèi)主流液壓設(shè)備接口規(guī)格。使用過程中建議定期檢查閥體密封狀態(tài)，并保持液壓油清潔度不低于 NAS 9 級。

The Tianyu Y-25B Medium-Low Pressure Relief Valve is a pressure control device specifically designed for medium-low pressure hydraulic systems, suitable for industrial applications with a working pressure range of 0.5-6.3MPa. This product features a direct-acting structure, with optimized spool geometry and spring matching system to achieve a balance between pressure regulation accuracy and response speed, ensuring stable operation of the hydraulic system.

The main body of the valve is made of high-strength ductile iron, and the critical sealing components are equipped with imported nitrile rubber materials. While maintaining a compact structure (with dimensions controlled within Φ52×120mm), it also has wear resistance and impact resistance characteristics. The internal flow channel of the valve body has been optimized through CFD fluid simulation, effectively reducing pressure loss, with the measured steady-state pressure fluctuation value not exceeding ±3% of the set pressure. The adjustment mechanism features a handwheel with a graduated scale, supporting stepless pressure adjustment with a difference of 0.2MPa, facilitating precise adjustments by operators according to different working conditions.

The Y-25B Medium-Low Pressure Relief Valve is particularly suitable for applications such as the walking systems of engineering machinery, hydraulic circuits of agricultural equipment, and small stamping machines. It can perform multiple functions, including system overload protection, pressure maintenance, and multi-level pressure control. The installation interface complies with the GB/T2877 standard, supporting both plate and pipe connection methods, and is compatible with the main domestic hydraulic equipment interface specifications. During use, it is recommended to regularly check the sealing condition of the valve body and maintain the cleanliness of the hydraulic oil at no less than NAS 9 grade.