Relief valve: For to use a press machine in lower capacity than its standard spec.Can drop it to approx. 1/8 of max. capacity. (an oil cooler option devise is required to use)
Counter Balance Valve: To be used when upper die mass is heavy and it dose not be changed the speed from descent high-speed to pressurization speed (Self-run prevention)by inertia.
Pilot Check Valve: To be used when RAM position falls by its self weight due to upper die mass is heavy.
Flow Regulator Valve: To make slow down a speed. (Approx. it can make speed a half slow) 3types are available: Descent (also pressurization speed slow), Ascent and Descent/Ascent..