以下是天榆液压气动 MTCV-02A 叠加式单向节流阀的中英文介绍：

天榆液压气动 MTCV-02A 叠加式单向节流阀是一种用于液压系统的控制元件。它具有单向节流功能，能够在保证油液单向流动的同时，对流量进行有效调节。该阀采用铸铁材质，本体强度高且耐久性好，使用寿命长。内部的硬钢元件进一步提高了产品的耐用性。它可使用 P 孔、A 孔、B 孔以及 A、B 孔同时使用，为液压系统的设计和应用提供了更大的灵活性。此外，该阀还提供六角螺丝或把手两种流量调整选择，方便用户根据实际需求进行操作。其最大工作压力为 250bar，适用管径为 1/4 英寸，最大流量可达 40L/min。

The Tianyu hydraulic and pneumatic MTCV-02A modular check throttle valve is a control component for hydraulic systems. It features a check throttle function, which can ensure the unidirectional flow of hydraulic fluid while effectively regulating the flow rate. The valve is made of cast iron, offering high strength and durability, resulting in a long service life. The internal hard steel components further enhance the product s durability. It can utilize P port, A port, B port, and both A & B ports simultaneously, providing greater flexibility for the design and application of hydraulic systems. Moreover, the valve offers two flow adjustment options: hex screw or handle, allowing users to operate according to their actual needs. It has a maximum working pressure of 250 bar, a suitable pipe diameter of 1/4 inch, and a maximum flow rate of 40 L/min.