25M42A 11C 20
25M42A 1A 20
2520V10A2 1AAR 25M42A 1C 20
2520V12A11 11AD 22R 25M55A 11C 20
2520V12A11 11DD 22R 25M55A 1A 20
2520V12A11 1AA 22R 25M55A 1C 20
2520V12A11 1CC22R 25M65A 11C 20
2520V12A11 86AA22R 25M65A 1A 20
2520V12A12 11AA 22L 25M65A 1C 20
2520V12A12 1AA 22R 25V12A 11A 22R
2520V12A12 1CC 22R 25V12A 1A 22L
2520V12A2 1AA22R 25V12A 1A 22R
2520V12A5 11AA 22R 25V12A 1B 22L
2520V12A5 1AA 22R 25V12A 1B 22R
2520V12A5 1AB 22R 25V12A 1C 22R
2520V12A5 1AC 22R 25V12A 1C22L
2520V12A5 1BA 22R 25V12A 1D22R
2520V12A5 1CC 22R 25V14A 11A 22R
2520V12A8 11AD 22R 25V14A 11C 22R
2520V12A8 1AA 22R 25V14A 1A 22L
2520V12A8 1CB 22R 25V14A 1A 22L
2520V12A8 1CC 22R 25V14A 1A 22R
2520V14A11 1AA 22R 25V14A 1B22R
2520V14A11 1AB 22R 25V14A 1C 22R
2520V14A11 1CC 22R 25V14A 1C22L
2520V14A12 11CC22R 25V14A 1D22R
2520V14A12 11DC22R 25V14AM 1A22R
2520V14A12 1AA22R 25V14B 1A 22R
2520V14A12 1CC 22R 25V17A 11A 22R
2520V14A14 1AA 22R 25V17A 11A22L
2520V14A14 1CC 22R 25V17A 11B 22R
2520V14A14 86BA22R 25V17A 11C 22R
2520V14A2 1CC 22R 25V17A 1A 22L
2520V14A5 1AA 22R 25V17A 1A 22R
2520V14A5 1AC 22R 25V17A 1A 22R 321
2520V14A5 1AD 22R 25V17A 1B 22R
2520V14A5 1BB 22R 25V17A 1B22L
2520V14A5 1CC 22R 25V17A 1C 22L
2520V14A5 86AA22R 25V17A 1C 22R
2520V14A8 1AA22R 25V17A 86A22R
2520V14A8 1AC 22R 25V17A1D22R
2520V14A8 1BA 22R 25V21A 11A 22R
2520V14A8 1CC 22R 25V21A 11B 22R
2520V14A8 1DB 22L 25V21A 11C 22R
2520V14A8 1DD22R 25V21A 1A 22L
2520V14A811AA22R 25V21A 1A 22R
2520V17A11 11AA 22R 25V21A 1B 22R
2520V17A11 1AA 22R 25V21A 1C 22L
2520V17A11 1AD 22R 25V21A 1C 22R
2520V17A11 1BA 22R 25V21A 1D22R
2520V17A11 1CC 22R 25V21A 86A 22R 280
2520V17A12 1AA22R 25V21A 86A22R
2520V17A12 1AB22R 25VM12AM 292NA 22R
2520V17A12 1CC 22R 25VM17AM 292NA22R
2520V17A14 11AA 22R 25VM17AM 292NC22R
2520V17A14 11DC 22R 25VM21AM 292NA22R
2520V17A14 1AA 22R 25VMQ 020 KIT, COVER END OF 25
2520V17A14 1CB 22R 25VMQ 025 A A 01 A NB 20 R
增加密封油脂法
对未使用密封油脂的阀，可考虑增加密封油脂来提高阀杆密封性能。
增加填料法
为提高填料对阀杆的密封性能，可采用增加填料的方法。通常是采用双层、多层混合填料形式，单纯增加数量，如将3片增到5片，效果并不明显。
更换石墨填料法
大量使用的四氟填料，因其工作温度在-20～ 200℃范围内，当温度在上、下限，变化较大时，其密封性便明显下降，老化快，寿命短。柔性石墨填料可克服这些缺点且使用寿命长。因而有的工厂全部将四氟填料改为石墨填料，甚至新购回的调节阀也将其中的四氟填料换成石墨填料后使用。但使用石墨填料的回差大，初时有的还产生爬行现象，对此必须有所考虑。
2525V21A21 86AA22R
