Parker offers a large variety of throttle and butterfly valves for different purposes. Industrial hydraulic throttle valves feature an exact and reliable control of oil flows. The range includes proportional throttle valves in slip-in cartridge design and with SAE flange, as well as throttle check valves for subplate, sandwich plate and pipe mounting. Various sizes enable an extremely variable use. The high-response valves allow the precise control of high flows at maximum dynamics. Parker butterfly valves are robust, compact and enable frequent operation with very low torque.