Features As one of button valve, such hand valve is entitled with practical adoptability, easy to use. Keep pressure-proof and explosion-proof, this mechanical valve is with aluminum alloy shell, which is safe to use. Via thread connection form, such button valve can be widely applicated in various pneumatic systems. With low failure rate for long service life, the mechanical valve supports precision mechanical structure. Built to strict quality control standards, aluminum alloy valve's design is improved for more durability. Specification:Item Type: Valve Model: 4R310-08 / 4R310-10 (optional) Nominal Pressure: 0 ~ 0.8Mpa Product Alias: Switch valve, button valve, mechanical valve Scope of Application: Widely applicated in various pneumatic systems Material: Aluminum alloy Connection Form: Thread Working Temperature: -10--60℃ Type: Five-way type Pipe Diameter: (4R310-08: G1/4 inch ), (4R310-10: G3/8 inch)  Package List:1 x Valve Package List 1 x Valve