Key Specifications / Parameters Specification Value / Description Product Series Fisher LOC 105 locking/switching valve module Function Provides switching or locking actuation in a control valve or regulator system (e.g., hold position, switch flow path) Typical Use Pneumatic control systems, regulators, pilot modules where lock/switch functionality is required Maximum Supply Pressure Around 125 psi for certain LOC 105‑labeled models (for example switching valve models) Operating Spring Range Some units show spring ranges such as 40‑90 psi for actuation control Ports / Connections Often ¼ in NPT pilot/control ports (varies by specific variant) Application Size Range Modular accessory — size depends on main valve/regulator it’s paired with Materials Standard industrial materials for valve modules (body, pilot, actuator)