Model：4F210-08 With Lock Product Size:6.2 x 3.9x 3.3in Weight :1.5lb Working temperature: -20-70℃ Material: Aluminum Alloy Fluid ： Air Port size：PT 1/4" Pressure range:0~145Psi(0-1MPa) Proof pressure:1.5MPa(215psi) Lockable type should be added grease periodically to ensure the lock mechanism can work regularly. 1. The aluminum foot pedal is designed with direct acting, which is steady and reliable. 2. If the duration of direction-change is long, the valves with lock may be selected. 3. The clamping framework is steady and reliable that it is easy and quick to unlock. However, with the limitation of the dimension of structure, it can not bear frequent strong impact.