MOOG伺服阀是MOOG公司研发的电液伺服控制中的关键元件知名品牌，它是一种接受模拟电信号后，相应输出调制的流量和压力的液压控制阀。电液伺服阀具有动态响应快、控制精度高、使用寿命长等优点，已广泛应用于航空、航天、舰船、冶金、化工等领域的电液伺服控制系统中。
MOOG伺服阀由永磁力矩马达、喷嘴、档板、阀芯、阀套和控制腔组成。当输入线圈通入电流 伺服阀时，档板向右移动，使右边喷嘴的节流作用加强，流量减少，右侧背压上升；同时使左边喷嘴节流作用减小，流量增加，左侧背压下降。阀芯两端的作用力失去平衡, 阀芯遂向左移动。
MOOG Flow control valve：Moog is a leader in designing, manufacturing, and selling high performance hydraulic valve products. With over 50 years experience producing servo and proportional valves for the industrial market, our products are legendary for reliability and accuracy. Moog valves contain either a mechanical or electrical feedback mechanism. Designed and built to meet the unique needs of even the most demanding customers, we offer numerous models with a range of sizes, performance characteristics and mounting options.
MOOG 2/2 way servo-controlled cartridge valve，1 450 - 20 550 l/min (383 - 5 430 gpm) | DSHR series：Main stage cone with metallic seat for leakage free closed position,Closed Loop Integrated Onboard Electronics ,Optional pilot stages (DDV or D661) allows the best fit to the application,Excellent dynamic response ,Different failsafe options available allow the best fit to the application.
部分库存型号：MOOG D661-4651/ C41156-421 G35JOAA6VSX2HA 、MOOG D661-4652/ C41156-421 G15JOAA6VSX2HA MOOG D661-4636、G60KOAA5VSX2HA 、MOOG D661-4469C、 G75KOAA6VSX2HA；MOOG D661-4697C、G15JOAA5VSX2HA 、MOOG D661-4033、 P80HAAF6VSX2-A；MOOG D661-4059/C41156-411 P80HAAF6VSX2-B 、MOOG D661-4444C、C41156-421、G60JOAA6VSX2HA；MOOG D661-4443C/C41156-421 G45J0AA6VSX2HA 、MOOG D661-4506C/C41156-421 G23J0AA6VSX2HA；MOOG D661-4539C/C41156-421 G35JOAA5VSX2HA 、MOOG D662Z4311K/D630-072A P01JXMF6VSX2-A；MOOG D662-4010/D061-8411 D02HABF6VSX2-A 、MOOG D662Z4336K/D630-272D P01JXMF6VSX2-A；MOOG D663Z4307K/D630Z067A P02JONF6VSX2-A 、MOOG D663-4007/D061-8412 L03HABD6VSX2-A ；MOOG D663Z4307K/D630Z067A P02JONF6VSX2-A 、MOOG D663-4007/D061-8412 L03HABD6VSX2-A；MOOG D634-341C R40K02M0NSS2 、MOOG D634-319C R40KO2M0NSP2。