單向節(jié)流閥，MK/MG20
產(chǎn)品概述
單向節(jié)流閥MK/MG20是一種液壓控制元件，兼具節(jié)流與單向閥功能，適用于需要精確調(diào)節(jié)流體流量并限制單向流動的液壓系統(tǒng)。該產(chǎn)品采用直通式管式安裝設(shè)計，結(jié)構(gòu)緊湊，操作便捷，廣泛應用于冶金、機床、工程機械等領(lǐng)域。其核心特點是雙向節(jié)流能力（MG型）或單向節(jié)流與自由反向流通能力（MK型），能夠有效平衡系統(tǒng)壓力與流量需求。138
技術(shù)特點
MK/MG20系列采用軸向三角槽節(jié)流口設(shè)計，通過旋轉(zhuǎn)調(diào)節(jié)套實現(xiàn)流量無級調(diào)節(jié)，調(diào)節(jié)范圍廣且穩(wěn)定性高。MK型單向節(jié)流閥在正向流動（B→A）時通過節(jié)流口控制流量，反向流動（A→B）時單向閥自動開啟，確保流體無阻礙通過。MG型則支持雙向節(jié)流功能，適用于雙向流量控制場景。閥體采用高強度耐腐蝕材料，工作壓力可達31.5MPa，適應礦物油或磷酸酯等介質(zhì)，油溫范圍為-30℃至+80℃，粘度兼容性為10~800mm²/s。2411
應用場景
該產(chǎn)品主要用于液壓系統(tǒng)中執(zhí)行元件的速度控制，例如油缸的進退調(diào)速或馬達的轉(zhuǎn)速調(diào)節(jié)。通過與溢流閥配合，可構(gòu)成進口、出口或旁路節(jié)流調(diào)速回路，適用于負載變化平緩或速度穩(wěn)定性要求適中的工業(yè)場景，如鋼鐵廠軋機、水泥生產(chǎn)線、煤礦機械等。其自我清潔設(shè)計（MK型環(huán)形縫隙）可減少沉積物堆積，延長使用壽命。5918
Product Overview
The MK/MG20 one-way throttle valve is a hydraulic control component integrating throttle and check valve functions, designed for precise fluid flow regulation and unidirectional flow restriction in hydraulic systems. With a straight-through threaded installation, it features compact structure and easy operation, widely used in metallurgy, machine tools, and construction machinery. The MG type supports bidirectional throttling, while the MK type combines throttling in one direction and free flow in the reverse direction, ensuring balanced system performance.120
Key Features
The MK/MG20 series employs an axial triangular-groove throttle orifice, enabling stepless flow adjustment via a rotating sleeve. The MK valve throttles flow in the forward direction (B→A) while allowing unrestricted reverse flow (A→B) via its integrated check valve. The MG valve regulates flow bidirectionally. Constructed with high-strength corrosion-resistant materials, it withstands pressures up to 31.5MPa, compatible with mineral oils or phosphate esters at temperatures from -30℃ to +80℃ and viscosities of 10~800mm²/s. Its robust design ensures reliability in harsh environments.48
Applications
Ideal for controlling actuator speeds (e.g., cylinder movement or motor rotation), this valve forms throttle circuits with relief valves for inlet, outlet, or bypass flow regulation. Typical applications include steel rolling mills, cement production lines, and mining equipment. The MK type’s self-cleaning annular gap minimizes deposit accumulation, enhancing durability in medium-pollution fluids (NAS1638 Grade 9 recommended).61419
簡單介紹
MK/MG20 單向節(jié)流閥該閥可以雙向節(jié)流。油通過旁 孔(3)流向閥體(2)和可調(diào)節(jié)套向(1)之間形成的節(jié)流口(4)。
MK/MG20 單向節(jié)流閥
的詳細介紹
MK/MG20 單向節(jié)流閥
通徑（NG）8至30 壓力至31.5Mpa 流量至400L/min MG6.MG8.MG10.MG15.MG20.MG30
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MK型單向節(jié)流閥從通徑6至通徑30共7個規(guī)格。
當壓力油從錐閥背面流入時，它作為節(jié)流閥使用，
若從相反方向 流入時，它作為單向閥使用，這時由于
有部分油液可在環(huán)形縫隙中流動，可以清除節(jié)流口上
的沉積物。MG型(節(jié)流閥)
該閥可以雙向節(jié)流。油通過旁 孔(3)流向閥體(2)和可
調(diào)節(jié)套向(1)之間形成的節(jié)流口(4)。轉(zhuǎn)動套筒(1)能夠
改變節(jié)流斷面。MK6.MK8.MK10.MK15.MK20.MK30節(jié)流閥
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