Spare Kits of Prominent Dosing Pumps in Pakistan | ENGINEERIC A spare kit contains individual replacement parts that are used when a specific component fails or wears out. Includes: Diaphragm Valves (suction & discharge) O-rings and seals (sometimes individual) Springs or small internal parts (depending on model) Purpose: Replace only the damaged or worn part Used for targeted repair Cost-effective for minor issues Use Case: When one part stops working but the rest of the pump is fine.