單向節(jié)流閥 MK/MG30 是一款廣泛應(yīng)用于液壓系統(tǒng)中的控制元件，主要用于調(diào)節(jié)油液的流量和方向，以滿足不同工況下的需求。該系列節(jié)流閥具有多種規(guī)格，通徑范圍從 NG6 到 NG30，能夠適應(yīng)不同的液壓系統(tǒng)。

MK 型單向節(jié)流閥在節(jié)流方向工作時(shí)，壓力油和彈簧將閥芯壓在閥座上，封閉連通。壓力油通過(guò)側(cè)孔進(jìn)入由閥體和調(diào)節(jié)套構(gòu)成的節(jié)流口，通過(guò)旋轉(zhuǎn)調(diào)節(jié)套可以無(wú)級(jí)調(diào)節(jié)節(jié)流口的過(guò)流截面。當(dāng)油液從相反方向流入時(shí)，閥芯被打開(kāi)，油液無(wú)節(jié)流地通過(guò)單向閥，同時(shí)部分油液通過(guò)環(huán)形槽流動(dòng)，起到自我清潔的作用。

MG 型節(jié)流閥則為雙向節(jié)流設(shè)計(jì)，油液通過(guò)旁孔流向閥體和調(diào)節(jié)套之間的節(jié)流口，通過(guò)旋轉(zhuǎn)調(diào)節(jié)套可以改變節(jié)流斷面，從而實(shí)現(xiàn)對(duì)流量的精確控制。

該系列節(jié)流閥最高工作壓力可達(dá) 31.5 MPa，最大流量可達(dá) 400 L/min，適用于多種液壓介質(zhì)，工作溫度范圍廣，能夠滿足不同環(huán)境下的使用需求。

The MK/MG30 Check Throttle Valve is a widely used control element in hydraulic systems, designed to regulate the flow and direction of hydraulic fluid to meet the requirements of various working conditions. This series of throttle valves is available in multiple specifications, with port sizes ranging from NG6 to NG30, making them suitable for different hydraulic systems.

The MK type check throttle valve works as a throttle valve in the throttling direction. The pressure oil and spring press the valve core against the valve seat to close the passage. The pressure oil enters the throttle port formed by the valve body and the adjustable sleeve through the side holes. The throttling area can be infinitely adjusted by rotating the sleeve. When the fluid flows in the opposite direction, the valve core is opened, allowing the fluid to pass through the check valve without throttling. Meanwhile, some of the fluid flows through the annular groove, achieving a self-cleaning effect.

The MG type throttle valve is designed for bidirectional throttling. The fluid flows through the side holes to the throttle port formed between the valve body and the adjustable sleeve. The throttling area can be changed by rotating the sleeve, thus achieving precise flow control.

This series of throttle valves can handle a maximum working pressure of up to 31.5 MPa and a maximum flow rate of up to 400 L/min. They are suitable for various hydraulic media and have a wide operating temperature range, making them adaptable to different environmental conditions.