1、環(huán)密封圈越緊越好。瀝青 泵靜環(huán)密封圈基本處于靜止?fàn)顟B(tài)，相對(duì)較緊密封效果會(huì)好些，但過(guò)緊也是有害的。
一是引起靜環(huán)密封因過(guò)熱變形，影響密封效果;二是靜環(huán)材質(zhì)以石墨居多.一般較脆，過(guò)度受力極易引起碎裂;三是安裝、拆卸困難，極易損壞靜環(huán)。
2、新的比舊的好。相對(duì)而言瀝青泵使用新機(jī)械密封的效果好于舊的，但新機(jī)械密封的質(zhì)量或材質(zhì)選擇不當(dāng)時(shí)，配合尺寸誤差較大會(huì)影響密封效果：在聚合性和滲透性介質(zhì)中，靜環(huán)如無(wú)過(guò)度磨損，還是不更換為好。因?yàn)殪o環(huán)在靜環(huán)座中長(zhǎng)時(shí)間處于靜止?fàn)顟B(tài)，使聚合物和雜質(zhì)沉積為一體.起到了較好的密封作用。
3、靜拆修總比不拆好，瀝青泵一旦出現(xiàn)機(jī)械密封泄漏便急于拆修。其實(shí)，有時(shí)密封并沒(méi)有損壞，只需調(diào)整工況或適當(dāng)調(diào)整密封就可消除泄漏。這樣既避免浪費(fèi)又可以驗(yàn)證自己的故障判斷能力，積累維修經(jīng)驗(yàn)提高檢修質(zhì)量。
4、葉輪鎖母越緊越好。瀝青泵機(jī)械密封泄漏中，軸套與軸之間的泄漏(軸間泄漏)是比較常見(jiàn)的，一般認(rèn)為，軸問(wèn)泄漏就是葉輪鎖母沒(méi)鎖緊，其買導(dǎo)致軸間泄漏的因素較多、如軸間墊失效，偏移，軸問(wèn)內(nèi)有雜質(zhì)，軸與軸套配合處有較大的形位誤差，接觸面破壞.軸上各部件間有間隙;軸頭螺紋過(guò)長(zhǎng)等都會(huì)導(dǎo)致軸間泄漏。鎖母鎖緊過(guò)度只會(huì)導(dǎo)致軸間墊過(guò)早失效，相反適度鎖緊鎖母，使軸問(wèn)墊始終保持一疋的壓縮彈性，在運(yùn)轉(zhuǎn)中鎖母會(huì)自動(dòng)適時(shí)鎖緊，使軸間始終處于良好的密封狀態(tài)。
5、動(dòng)環(huán)密封圈越緊越好，其實(shí)動(dòng)環(huán)密封圈過(guò)緊有害無(wú)益。一是加劇密封圈與軸套間的磨損泄漏;二是增大了動(dòng)環(huán)軸向調(diào)整、移動(dòng)的阻力、在工況變化頻繁時(shí)無(wú)法適時(shí)進(jìn)行調(diào)整;三是彈簧過(guò)度疲勞易損壞：四是使動(dòng)環(huán)密封圈變形、影響密封效果。
6、彈簧壓縮量越大密封效果越好。其買不然，彈簧壓縮量過(guò)大，可導(dǎo)致摩擦副急劇磨損，瞬間燒損;過(guò)度的壓縮使彈簧失去調(diào)節(jié)動(dòng)環(huán)端面的能力，導(dǎo)致密封失效。

1, ring ring more compactly as possible. Asphalt pump static seal ring is basically in a static state, the relatively tight seal effect will be better, but too tight is harmful.
One is caused by static seal due to overheating, the impact of sealing effect; two static ring materials are mostly of graphite, are generally more brittle, vulnerableto excessive stress caused by fragmentation; three is installed, the removal of difficulties, easily damaged static ring.
2, the new better than old. Relatively new asphalt pump mechanical seal better than the old, but the quality of the new mechanical seal or choice of materials is not the time, with the larger size of the error will affect the seal: and permeability in the polymerization medium, such as static ring without excessive wear, or not replaced at all. Because the static ring in a static ring seat in a long time in the stationary state, so that deposition of polymers and impurities as a whole. Played a good sealing effect.
3, static demolition demolition than never good repair, asphalt pump once the mechanical seal leakage will be eager to overhaul. In fact, sometimes closed and not broken, just adjust the operation or the appropriate adjustments can be sealed to eliminate leakage. This can not only avoid wasteful and can verify their ability to judge the fault repair experience accumulation, improve the quality of maintenance.
4, the impeller lock nut tightening the better. Mechanical asphalt pump seal leakage, leakage between the sleeve and the shaft (inter axis leakage) is relatively common, generally, shaft impeller leakage is asked not the lock master lock, the buy in the shaft, such as more leakage factor axis pad failure, migration, shaft ask inside the impurities, shaft and sleeve with a larger form bit error, contact surface damage. Shaft gap between the parts; head thread is too long will cause inter axis leakage. Lock home lock will only lead to excessive axle pad premature failure, instead of moderate locking mother, so that axis asked pad remains elastic one piece, a lock nut in operation will automatically lock the right time, so that the axis is always in good sealing state.
5, ring ring tightening the better, in fact, dynamic tight ring seals harmful. One is the severe wear of sealing ring and sleeve leakage; two is to increase the dynamic axial adjustment of the resistance movement, the frequent changes in working conditions, unable to make timely adjustments; three spring fatigue is easy to damage: four ring seal is dynamic deformation, the impact of sealing effect.
6, the greater amount of spring compression seal effect. Buy otherwise, excessive compression spring, can lead to rapid wear of friction pairs, instantaneous burning; excessive compression spring lose their ability to adjust ring face, resulting in seal failure.