... shaft seals for type M AH and HH pumps may be adoptable of gland seal or expeller seal11) The discharge branch can ... /GH gravel pumps, SP/SPR sump pumps, series ZGB slurry pumps, series ZJ slurry pumps, sand pumps, mud pumps, ash pumps, chemical pumps, coal pumps, mine pumps, dredger, sewage pumps, desulphurization pump ...