This 30MPA pressure relief valving set features premium brass construction for strength and stability under extreme pressure, ideal for industrial equipment and hydraulic systems requiring reliably pressure controller Suitable for both professional industrial use and DIYer projects, this 4 piece valving set works effectively in pneumatic devices, mechanical repairs, and various high pressure systems Crafted from brass that resists rust and, extending product life for use in humid environments and processing industries Engineered with accurate machining technology to deliver accurate pressure, ensuring optimal in laboratories, factories, and mechanical maintenance applications Features ergonomic construction for tool less installation within seconds, perfect for fast deployment in pipeline systems and equipment maintenance scenarios, Manufacturer: Whoasyst