以下是DA-10/先导式卸荷阀DA10的产品中英文介绍：

DA-10先导式卸荷阀是一种性能卓越的液压控制元件，主要用于液压系统中实现卸荷功能。该阀采用先导式控制方式，通过先导阀对主阀进行控制，从而实现精确的压力调节。它具有多种调节方式，包括调节手柄、带保护罩的内六角调节螺栓和带锁手柄等，方便用户根据实际需求进行灵活调节。DA-10先导式卸荷阀的通径为10，最大工作压力可达31.5MPa，流量范围在240L/min以内。其工作介质为矿物质液压油或磷酸酯液压油，适用温度范围为-30~+80℃，粘度范围为10~800mm²/s。此外，DA-10先导式卸荷阀还具有多种压力范围可供选择，能够满足不同工况下的使用需求。它广泛应用于有蓄能器系统和高低压泵系统中，当蓄能器工作时，可使油泵卸荷，或者在高低压泵系统中使高压泵工作、低压泵卸荷，从而有效节省能源。

The DA-10 pilot-operated unloading valve is a high-performance hydraulic control component, mainly used in hydraulic systems to achieve unloading functions. This valve employs a pilot-operated control method, which allows precise pressure regulation by controlling the main valve through the pilot valve. It features multiple adjustment methods, such as adjustment handles, hexagon socket cap screws with protective covers, and locking handles, providing users with flexible options to meet their specific needs. The DA-10 pilot-operated unloading valve has a port diameter of 10, with a maximum working pressure of up to 31.5MPa and a flow rate within 240L/min. Its working medium includes mineral hydraulic oil or phosphate ester hydraulic oil, and it operates within a temperature range of -30~+80℃ and a viscosity range of 10~800mm²/s. Moreover, the DA-10 pilot-operated unloading valve offers various pressure ranges to cater to different working conditions. It is widely used in systems with accumulators and high/low pressure pump systems. When the accumulator is in operation, it can unload the oil pump, or in high/low pressure pump systems, it enables the high-pressure pump to work while unloading the low-pressure pump, thereby effectively saving energy.