意大利現貨放大器E-ME-AC-05F 21/2節流閥是通過改變節流截面或節流長度以控制流體流量的閥門。將節流閥和單向閥并聯則可組合成單向節流閥。節流閥和單向節流閥是簡易的流量控制閥R901180335  DBEE30-3X/100YG24K31M

R901114355  DBEE30-3X/200YG24K31M

R900704919  DBEE30-3X/315YG24K31M

R900718066  DBEE30-3X/350YG24K31M

R901118907  DBEE30-3X/350YG24K31M

R900954717  DBEME30-3X/50YG24K31M

R900954713  DBEME30-3X/100YG24K31M

R900954714  DBEME30-3X/200YG24K31M

R901104700  DBEME30-3X/315YG24K31V

R900954715  DBEME30-3X/315YG24K31M

R900746437  DBEME30-3X/315XYG24K31M

R901149635  DBEME30-3X/350YG24K31V

R900954716  DBEME30-3X/350YG24K31M

0811402045  DBE6X-1X/80G24-8NZ4M

0811402040  DBE6X-1X/80G24-25NZ4M

0811402044  DBE6X-1X/180G24-8NZ4M

0811402041  DBE6X-1X/180G24-25NZ4M

0811402043  DBE6X-1X/315G24-8NZ4M

0811402042  DBE6X-1X/315G24-25NZ4M

0811402023  DBETFX-1X/80G24-27NZ4M

0811402022  DBETFX-1X/180G24-27NZ4M

0811402021  DBETFX-1X/250G24-27NZ4M
，在定量泵液壓系統中，節流閥和溢流閥配合，可組成三種節流調速系統，即進油路節流調速系統、回油路節流調速系統和旁路節流調速系統。節流閥沒有流量負反饋功能DX02-621-60
DX01-621-60
DX02-651-60
DX01-651-60
DX02-606-60
DX01-606-60
DX02-616-60
DX01-616-60
DX02-611-60
DX01-611-60
DX02-613-60
DX01-613-60
DX02-421-60
DX01-421-60
DX02-451-60
DX01-451-60
DX02-406-60
DX01-406-60
DX02-416-60
DX01-416-60
DX02-411-60
DX01-411-60
DX02-413-60
DX01-413-60
P2E-KV32C1
P2E-KV32C2
P2E-KV31C1
P2E-KV31C2
P2E-KV32C1
P2E-KV32D1
P2E-KV32D2
P2E-KV34D1
P2E-KV34D2
P2E-KV31F1
P2E-KV31F2
P2E-KV31J1
P2E-KV31J2
DX1-621-BL49
DX2-621-BL49
DX3-621-BL49
DX1-651-BL49
DX2-651-BL49
DX3-651-BL49
DX1-606-BL49
DX2-606-BL49
DX3-606-BL49
DX1-616-BL49
DX2-616-BL49
DX3-616-BL49
DX1-611-BL49
DX2-611-BL49
DX3-611-BL49
DX1-613-BL49
DX2-613-BL49
DX3-613-BL49
DX1-621-BN
DX2-621-BN
DX3-621-BN
DX1-651-BN
DX2-651-BN
DX3-651-BN
DX1-606-BN
DX2-606-BN
DX3-606-BN
DX1-616-BN
DX2-616-BN
DX3-616-BN
DX1-613-BN
DX2-613-BN
DX3-613-BN
DX1-421-60
DX2-421-60
DX3-421-60
DX1-451-60
DX2-451-60
，不能補償由負載變化所造成的速度不穩定，一般僅用于負載變化不大或對速度穩定性要求不高的場合。
對節流閥的性能要求是：·流量調節范圍大，流量一壓差變化平滑；
·內泄漏量小，若有外泄漏油口，外泄漏量也要小；
·調節力矩小，動作靈敏。ATOS放大器 
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