procurement of isi marked deep well hand pump components procurement of isi marked deep well hand pump components conforming to is 15500 part 3 4 5 6 7 2004 amended revised upto date , head assembly standard ( with handle assembly ) , handle assembly standard , head assembly edwp ( with handle assembly ) , handle assembly edwp , cylinder assembly sdwp , plunger valve assly. sdwp , check valve assly.sdwp , cylinder assembly edwp , plunger valve assly. edwp , check valve assly.edwp , head standard , head edwhp , front cover , third plate , handle standard , handle edwhp , chain with coupling , t-bar , counter weight , stand standard ( normal ) , stand edwp ( normal ) , watertank 32 , connecting rod , plunger rod standard , plunger rod long , handle axle , bearing spacer , washer , socket 32 , cylinder body standard with brass liner , cylinder body long with brass liner , reducer cap , plunger yoke body , upper valve , bucket spacer standard , bucket spacer-lower , follower sdwp , follower edwp , check valve standard , rubber seat retainer , check valve seatstandard , pump bucket standard , sealing ring standard , upper valve seating , lower valve seating standard