★ Overview
Series ZA(E) is a horizontal foot-mounted(ZA)/centerline mounted(ZE) single-stage single-suction cantilever type centrifugal pump. It is the standard chemical pump widely used in chemical industry for pumping acidic, alkaline and salt solutions and other liquid petrochemical products. This series is used for pumping clean media or slightly contaminated media. ZA(E) pumps comply with the standards API610 and ISO2858.
★ Application range
Mainly used in petroleum refineries and petrochemical, chemical, oil chemical, synthetic fiber and foodstuff industries and other applications, and also used for pumping petroleum and its products, as well as highly corrosive mid- and low-temperature media in a broad range of chemical process flows.
★ Technical
◎ Capacity Q: 25 ~ 600 m3/h
◎ Head H: 30~330 m
◎ Pressure P: Up to 4.0 MPa
◎ Temperature t: -45--420℃
★ Materials
Main materials: S-3, S-5, S-6, S-8, S-9, C-6, A-7, A-8, D-1, D-2 or other materials.
★ Sealing
All layouts and systems to API682 are available.
★ Direction of rotation
The pump can be manufactured as clockwise rotation from the view of driving end or as required by the customer.
★ Features
ZA(E) series petrochemical processing pump is mainly structured with radial split. Its casing is designed to be foot support and centerline support. The casing with larger than 80 mm (including 80mm)-diameter is designed double-volute, which can balance the radial thrust. The pressure chamber forms by means of the connecting of casing and casing cover, which makes the pump operate safely and reliably.
The pump can be equipped with heat-protection (cooling) sleeve. There is cooling water chamber on the casing cover which reserve the heat of pump chamber and enlarge the application range. Impeller has open or close style when pumping different fluid. The wearing and balance hole in the impeller can balance axial thrust. The inducer can improve the NPSH performance.
The material of bearing housing is cast iron or cast steel (special condition). The bearing is lubricated with oil. The constant level oiler is equipped with the bearing house can control oil level automatically. The end bearing is selected by operation pressure and suction pressure, either diagonal touching ball bearing or taper roller bearing. There are three kinds of cooling methods: air cooling, water cooling and wind cooling which can be applied in different operation condition.
Seal chamber is designed totally according to API682 accommodating ripple seal, single-end and double-end mechanical seal which can be equipped with various flushing plans.
The pump rotation direction is CW viewing from the driving side.
