含石膏、石灰漿液等雜質含量較高的介質。

HTM-40S220Q七星關脫硫泵七星關機械密封工作參數：

　　固定物含量：≤30%

　　溫 度：≤120℃

　　壓 力：≤1.6MPa

　　軸 徑：≤250mm

HTM-40S220Q七星關脫硫泵七星關機械密封主要應用：

　　該密封主要應用于燃煤發電煙氣脫硫上，適用于石膏漿液泵、石灰石漿液泵、石膏排出泵。

　　常見泵號如下：

　　LCF40/250I LCF40/350I LCF40/400I LCF40/450I LCF50/350N2 LCF50/400I LCF50/460I

　　LCF65/310I LCF65/315I LCF65/350I LCF65/400I LCF80/400I LCF80/450I LCF100/300 LCF100/320I

　　LCF100/350I LCF100/420I LCF125/405I LCF150/300I LCF150/350I LCF200/300I LCF100/500T

　　LCF150/400I LCF200/410I LCF250/430I LCF250/430I LC300/500I LC300/530I LC300/400I LC300/635I LC300/630I LC350/500I LC350/560I LC400/500I LC400/540I LC450/635I LC500/630I

　　LC550/700I LC550/710I LC550/750I LC600/825I LC700/900I LC700/898I LC800/1000I LC900/1150I

　　LC500/630II LC550/700II LC550/710II LC550/750II LC600/825II LC700/900II LC700/898II LC800/1000II LC900/1150II

　　密封型號：

　　HTM-30S251Z HTM-30S351X HTM-30S220Z HTM-30S220Q HTM-30D251ZZ HTM-30D351XX

　　HTM-40S251Z HTM-40S351X HTM-40S220Z HTM-40S220Q HTM-40D251ZZ HTM-40D351XX

　　HTM-55S251Z HTM-55S351X HTM-55S220Z HTM-55S220Q HTM-55D251ZZ HTM-55D351XX

　　HTM-60S251Z HTM-60S351X HTM-60S220Z HTM-60S220Q HTM-60D251ZZ HTM-60D351XX

　　HTM-80S251Z HTM-80S351X HTM-80S220Z HTM-80S220Q HTM-80D251ZZ HTM-80D351XX

　　HTM-30S HTM-40S HTM-55S HTM-60S HTM-80S

　　HTM-30D HTM-40D HTM-55D HTM-60D HTM-80D

　　LB-LK7-120S LB-LK7-120D LB-LK6-115S LB-LK6-115D

　　HMR3-125 HMR3-142 HMR3-158 HMR3-175 HMR3-198 HMR2-210 HR325/170 HR325/190

　　HR325/210 HR325/230 HA4104-D/68-M1-203 HA4104-D/78-M1-668 HA4104-D/93-M1-66

　　HA4104-D/98-M1-203 HA4104-S/68-M1-203 HA4104-S/78-M1-668 HA4104-S/93-M1-668 HA4104-S/98-M1-203