您的專屬咨詢顧問：張經理
詳細地址：徐州市泉山區段莊街道礦山路百合嘉園2棟303室
備案號1：蘇ICP備16030684號-19
產品描述
一.溢流閥
是一種液壓壓力控制閥，在液壓設備中主要起定壓溢流作用，穩壓，系統卸荷和安全保護作用。溢流閥在裝配或使用中，由于O形密封圈、組合密封圈的損壞，或者安裝螺釘、管接頭的松動，都可能造成不應有的外泄漏。
如果錐閥或主閥芯磨損過大，或者密封面接觸不良，還將造成內泄漏過大，甚至影響正常工作
二、主要作用：
1、定壓溢流作用:在定量泵節流調節系統中，定量泵提供的是恒定流量。當系統壓力增大時，會使流量需求減小。此時溢流閥開啟，使多余流量溢回油箱，保證溢流閥進口壓力，即泵出口壓力恒定(閥口常隨壓力波動開啟)。
2、穩壓作用:溢流閥串聯在回油路上，溢流閥產生背壓，運動部件平穩性增加。
3、系統卸荷作用:在溢流閥的遙控口串接溢小流量的電磁閥，當電磁鐵通電時，溢流閥的遙控口通油箱，此時液壓泵卸荷。溢流閥此時作為卸荷閥使用。
4、安全保護作用:系統正常工作時，閥門關閉。只有負載超過規定的極限(系統壓力超過調定壓力)時開啟溢流，進行過載保護，使系統壓力不再增加(通常使溢流閥的調定壓力比系統最高工作壓力高10%~20%)。
5、實際應用中一般有:作卸荷閥用，作遠程調壓閥，作高低壓多級控制閥，作順序閥，用于產生背壓(串在回油路上)。
三、溢流閥一般有兩種結構:1、直動型溢流閥 。2、先導式溢流閥。
對溢流閥的主要要求:調壓范圍大，調壓偏差小，壓力振擺小，動作靈敏，過載能力大，噪聲小
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企業介紹
公司供應攤鋪機配件，壓路機配件，銑刨機配件，攤鋪機刮板驅動軸，刮板驅動軸總成，找平儀，找平儀支架以及液壓泵和配件。我廠還供應攤鋪機易損件，攤鋪機平衡梁，攪龍軸，踏板，輸料底板，葉片，熨平板，減速機，鏈軌，履帶板，支重輪，刮板大鏈條，輸料鏈條等。
聯系人：梁經理
聯系方式：13645201509（微信同號）
QQ：2870202745
1、 Relief valve
It is a hydraulic pressure control valve that mainly functions as a constant pressure overflow, pressure stabilization, system unloading, and safety protection in hydraulic equipment. During assembly or use, the overflow valve may experience unexpected leakage due to damage to the O-ring or combination sealing ring, or loose installation screws or pipe joints.
If the cone valve or main valve core is excessively worn or the sealing surface is in poor contact, it will also cause excessive internal leakage and even affect normal operation
2、 Main functions:
1. Constant pressure overflow function: In the throttling and regulating system of the quantitative pump, the quantitative pump provides a constant flow rate. When the system pressure increases, it will reduce the flow demand. At this point, the overflow valve opens, causing excess flow to overflow back into the oil tank, ensuring that the inlet pressure of the overflow valve, i.e. the pump outlet pressure, remains constant (the valve port often opens with pressure fluctuations).
2. Pressure stabilizing effect: The overflow valve is connected in series on the return oil circuit, generating back pressure and increasing the stability of the moving parts.
3. System unloading function: Connect a small flow solenoid valve in series to the remote control port of the overflow valve. When the solenoid iron is energized, the remote control port of the overflow valve is connected to the oil tank, and the hydraulic pump is unloaded at this time. The overflow valve is now used as a unloading valve.
4. Safety protection function: When the system is working normally, the valve is closed. Only when the load exceeds the specified limit (the system pressure exceeds the set pressure), can the overflow be opened for overload protection to prevent the system pressure from increasing (usually the set pressure of the overflow valve is 10% to 20% higher than the maximum working pressure of the system).
5. In practical applications, it is generally used as a unloading valve, a remote pressure regulating valve, a high and low pressure multi-stage control valve, a sequence valve, and used to generate back pressure (connected to the return oil circuit).
3、 There are generally two types of structures for relief valves: 1. Direct acting relief valves. 2. Pilot operated relief valve.
The main requirements for the overflow valve are: large pressure adjustment range, small pressure deviation, small pressure oscillation, sensitive action, high overload capacity, and low noise
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Enterprise Introduction
The company supplies paver accessories, roller accessories, milling machine accessories, paver scraper drive shaft, scraper drive shaft assembly, leveling instrument, leveling instrument support, hydraulic pump and accessories. Our factory also supplies vulnerable parts of paver, balance beam of paver, auger shaft, pedal, conveying bottom plate, blade, screed, reducer, chain rail, track plate, supporting wheel, scraper large chain, conveying chain, etc.
Contact person: Manager Liang
Contact information: 13645201509 (same WeChat account)
QQ: 2870202745
您的專屬咨詢顧問：張經理
詳細地址：徐州市泉山區段莊街道礦山路百合嘉園2棟303室
備案號1：蘇ICP備16030684號-19