Naniwa Centrifugal Pump Naniwa Centrifugal Pump Naniwa Centrifugal Pump Naniwa Centrifugal Pump Impeller – Shaft – Shaft Sleeve – Pump Casing – Casing Cover – Bearing Housing – Casing Ring – Gland – Insert – Lantern Ring – Wear Ring – Shoulder Ring – Inter Stage Ring – Bearing Cover – Mechanical Seal Etc. Impeller – Shaft – Shaft Sleeve – Pump Casing – Casing Cover – Bearing Housing – Casing Ring – Gland – Insert – Lantern Ring – Wear Ring – Shoulder Ring – Inter Stage Ring – Bearing Cover – Mechanical Seal Etc. Impeller – Shaft – Shaft Sleeve – Pump Casing – Casing Cover – Bearing Housing – Casing Ring – Gland – Insert – Lantern Ring – Wear Ring – Shoulder Ring – Inter Stage Ring – Bearing Cover – Mechanical Seal Etc. Impeller – Shaft – Shaft Sleeve – Pump Casing – Casing Cover – Bearing Housing – Casing Ring – Gland – Insert – Lantern Ring – Wear Ring – Shoulder Ring – Inter Stage Ring – Bearing Cover – Mechanical Seal Etc. Impeller – Shaft – Shaft Sleeve – Pump Casing – Casing Cover – Bearing Housing – Casing Ring – Gland – Insert – Lantern Ring – Wear Ring – Shoulder Ring – Inter Stage Ring – Bearing Cover – Mechanical Seal Etc. Casing Ring – Gland – Insert