Parker派克EW101系列換向閥用功率放大器
Parker派克EW101系列換向閥用功率放大器用于對帶位移傳感器的先導式比例換向閥進行控制。油液在閥芯中的流動方向可以通過預置指令信號電壓進行確定。閥芯行程和它的換向速度可以通過電位計進行調節。閥芯的運動特性由模塊的閉環反饋回路進行調控。
Rexroth力士樂放大器
歐板式放大器：VT2000-5X/，VT3000-3X/，VT3006-3X/，VT3015-2X/，VT5004S2X，VT5010S2X，VT-VRPA1-50-1X/，VT-VRPA1-51-1X/，VT-VRPA1-52-1X/，VT-VRPA2-1-1X/，VT-VRPA2-2-1X/，VT-SR2-1X，VT-VSPA1-1-1X/，VT-VSPA1K-1-1X/，VT-VSPA2-1-1X/，VT-VSPA2-50-1X/，VT-SWKA-1-1X/，VT-VRPD-1-1X/V0/0，VT-VRPD-2-1X/V0/0，VT-VSPD-1-1X/V0/0，VT-SWKD-1-1X/，VT-PVAR2-1X/，VT-PVPQ1-1X/0，VT-PVNR-1-1X/，VT-HNC100-1-2X/，VT16000-2X/。
模塊式放大器：VT11004-1X/，VT11007-1X/，VT11010-1X/，VT11015-1X/，VT11016-1X/，VT11021-1X/，VT11030-1X/，VT11031-1X/，VT11032-1X/，VT11033-1X/，VT11034-1X/，VT11037-1X/，VT11118-1X/，VT11131-1X/，VT11132-1X/，VT11550-2X/-VT11554-2X/，VT11165-1X/，VT-MRPA2-1-1X，VT-MRPA2-2-1X，VT-MSPA1-50-1X，VT-MSPA1-1-1X/，VT-SWMA-1-1X/，VT-SWMAK-1-1X/。
VICKERS威格士KBDG5V比例閥
Vickers Proportional Two-Stage Directional Valves. High Performance with Main Stage Spool Feedback. Pressures to 350 bar (5000 psi). KBFDG5V-5/7/8, 10 Series. Proportional Directional Control Valves. Two-Stage Models Without Electrical Feedback.
參考型號：KBDG5V-5-1*, KBDG5V-7-1*, KBDG5V-8-1*, KBDG5V-10-1*.
