Centrifugal Pump · Pumps
Sulzer ZPP Double-Suction Axially-Split Single-Stage Centrifugal Pump — Marine cooling water, seawater systems, water supply.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
| Bearing lubrication/grease change | typically every 2,000-4,000 running hours or per the maker's schedule |
|---|---|
| Mechanical seal inspection | every 4,000-8,000 running hours or on leakage indication |
| Coupling alignment check | annually, or after any pump/motor removal |
| Wear ring clearance check | at major overhaul, typically every 3-5 years depending on duty |
| Performance test against curve | annually |
| Wear ring radial clearance | typically 0.3-0.5 mm as new, generally renewed around double the as-new clearance - confirm against Sulzer's own tolerance table |
|---|---|
| Shaft/sleeve runout | commonly within 0.05-0.08 mm - confirm against the maker's limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Essential seawater/cooling pumps fall under the machinery survey scope; class expects evidence of running/standby pump testing and, for pumps serving essential services, confirmation that a standby unit is available and periodically exercised.
Estimated lifetime: Double-suction axially-split centrifugal pumps of this class typically give 15-20+ years of service in continuous cooling/seawater duty with periodic bearing, seal and wear-ring renewal; the cast casing itself is normally the longest-lived component.
Free of charge — send us your request for Sulzer equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Sulzer first.
Tell us what you need for this Sulzer ZPP Double-Suction Axially-Split Single-Stage Centrifugal Pump — a part, a service call, a second opinion. Are you Sulzer? Claim this brand page.
Service engineer? Write the day report for this ZPP Double-Suction Axially-Split Single-Stage Centrifugal Pump in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.