SMC速度控制阀作用,SMCAS系列控制阀
而右侧的回路则为进气节流方式，进气侧单向阀关闭，排气侧单向阀开启。
进气流量小，进气腔压力上升缓慢，排气迅速，排气腔压力很低。
主要靠压缩空气的膨胀使活塞前进，
故这种节流方式很难控制气缸的速度达到稳定。
一般只用于单作用气缸、夹紧缸和低摩擦力气缸的速度控制。.

AS4201F-04-12W2
AS1001F-04K
AS2201F-01-06ST
AS2211FM-02-06S
AS3201F-03-08S-X95
AS4201F-04-13S
AS1001F-04N
AS2201F-01-06S-X214
AS2211FM-02-08
AS3201F-03-08W2
AS4201F-04-13SK
AS1001F-04T
AS2201F-01-06S-X242

SMC速度控制阀作用,SMCAS系列控制阀
AS2211FM-02-08S
AS3201F-03-09W
AS1001F-04-5-X250
AS2201F-01-06SK-X264
AS2211FM-02-04S
AS3201F-03-08S-X214
AS4201F-04-12S-X95
AS1001F-04D
AS2201F-01-06SN-X36
AS2211FM-02-06
AS4201FE-04-10SK
AS1001F-06
AS2201F-01-06S-X26
AS2211FM-02-10
AS3201F-03-10
AS4201FE-04-12SK
AS1001F-06-3
AS2201F-01-06S-X36
AS2211FM-02-10S
AS3201F-03-10K
AS4201FG-04-10
AS3201F-03-08S-X214A

,SMCAS系列控制阀