放大器、电子放大器、液动放大器和气动放大器等，其中用得最广泛的是电子放大器。随着射流技术（见射流元件）的推广，液动或气动放大器的应用也逐渐增多。电子放大器又按所用有源器件分为真空管放大器、晶体管放大器、固体放大器和磁放大器
ME-AC-01F20/3,
E-ME-AC-01F20/4,E-ME-AC-01F20/6, E-ME-AC-01F20/A1, E-ME-AC-01F20/A2,
E-ME-AC-01F20/A4, E-ME-AC-01F/4R-420, E-ME-AC-01F/4RE-ME-AC-01F/4RE-ME-AC-01F/4RE-ME-AC-01F/I20, E-ME-AC-01Fnbsp;
E-ME-AC-01FE-ME-AC-01FE-ME-AC-01F/RR20/4, E-ME-AC-01F/RR20/A2, E-ME-AC-01F/RR-420, E-ME-AC-01F/RRE-ME-AC-01F/RRnbsp;
E-ME-AC-01FE-ME-AC-05F20, E-ME-AC-05F20/2,E-ME-AC-05F20/3,
E-ME-AC-05F20/4, E-MRQKB-LAN 流量760L/min 插孔T-18A
导压操作平衡活塞型，气控
RPID-BBN 流量380L/min 插孔T-16A
RPKD-BBN 流量760L/min 插孔T-18A
导压级比例阀
RPGC-8WN 流量200L/min 插孔T-3A 压力控制阀
RPIC-8WN 流量380L/min 插孔T-16A 压力控制阀
RPKC-8WN 流量760L/min 插孔T-18A 压力控制阀
平衡提动塞型调节元件15 带T-8A 插孔
RPIS-8WN 流量760L/min 插孔T-16A
导压操作平衡活塞，透气型
RVCA-LAN 流量60L/min 插孔T-11A
RVEA-LAN 流量120L/min 插孔T-2A
RVGA-LAN 流量240L/min 插孔T-17A
RVIA-LAN 流量480L/min 插孔T-19A
旁通补偿阀，附泄压
RVCB-LAN 流量20L/min 插孔T-11A
RVEB-LAN 流量40L/min 插孔T-2A
RVGB-LAN 流量80L/min 插孔T-17A
RVIB-LAN 流量160L/min 插孔T-19AE-AC-05F20/A3, E-ME-AC-05F/4RE-ME-AC-05F/4RE-ME-AC-05F/I20, E-ME-AC-05FE-ME-AC-05FE-ME-AC-05F/RR20, E-ME-AC-05F/RR20/3, E-ME-AC-05F/RR20/4, E-ME-AC-05F/RRnbsp;
E-ME-AC-05F/RRE-ME-AC-05FE-ME-AC-05FE-ME-K-PID,
E-ME-L-01H40/DL17SA, E-ME-L-01H40/DL26SB, E-ME-L-01H40/DL27SB, E-ME-L-01H40/DL27SB, E-ME-L-01H40/DL27SB, E-ME-L-01H40/DL35SB, E-ME-L-01H40/DL67SA, E-ME-L-01H40/LQ22SA, E-ME-L-01H40/LQ32SA, E-ME-L-01H40/DL27SB, E-ME-L-01H40/PCNNSA, E-ME-L-01H/DL27SB, E-ME-L-01H/I40/LQ32SA, E-ME-T-01H40/DH04SA, E-ME-T-01H40/DH05SA, E-ME-T-01H40/DK14SC, E-ME-T-01H40/DK15SB, E-ME-T-01H40/QV0NSA, E-ME-T-01H40/TK14AA, E-ME-T-01H40/TK14SC, E-ME-T-01H40/TQ25SA, E-ME-T-01H40/TQ32SA, E-ME-T-01H40/TQ42SA, E-ME-T-01H40/DK14SC, E-ME-T-01H40/DK15SB, E-ME-T-01H40/QV1NSB,E-ME-T-01H40/TQ25SA, E-ME-T-01H/I40/DH04SA, E-ME-T-01H/I40/DK14SC, E-ME-T-01H/I40/DP25SB, E-ME-T-01H/I40/DP25SC, E-ME-T-01H/I40/QV0NSA, E-ME-T-01H/I40/TQ25SA, E-ME-T-01H/I40/DK15SB, E-ME-T-01H/I40/QVONSA, E-ME-T-01H/I40/TQ25SA, E-ME-T-05H40/DH07SA, E-ME-T-05H40/DK17SA, E-ME