ZA Petrochemical Process Pump

Excellent hydraulic model design：Advanced hydraulic model design, high efficiency and good anti-cavitation performance

Designed in compliance with API610 standards：Designed to meet API610 standards, the pump type is OH1 structure, suitable for transporting medium and low-temperature media, especially media in the petrochemical industry.

Standard mechanical seal design：The standard sealing chamber design complies with API682 standards, meets the requirements of single and double-end mechanical seals, and is suitable for the transportation of various media. Equipped with a complete sealing system to ensure good operating status of the pump

High degree of standardization and serialization：The ZA series has a total of 52 pump models, with only 7 types of bearing body components, with a high labeling coefficient; the super versatility and interchangeability design can reduce spare parts storage and management costs for users, and reduce the overall operating cost of the pump.

ZA type centrifugal process pump for petroleum chemical industry is designed and manufactured according to API610 specifications, so the product has the following characteristics:

1.The structure is safe and reliable, and the pump operates stably.

2. The pump has high average efficiency and low energy consumption, making it the ideal energy-saving product of choice.

3. The pump has good cavitation performance, which is unmatched by similar products. The minimum NPSH value of many products can be as low as about 0.5m, and some products are even lower. The NPSHR value of general products is about 1m. Since the low NPSHR value can reduce the installation height of the stone chemical device, the KZA pump can save investment for users.

4. The performance range of the pump is very wide, the flow rate Q can reach a maximum of 3000m/h, and the lift H can reach a maximum of 230m. Moreover, the flow rate and lift of the pump products are closely spaced, which provides convenience for users to select pumps.

5. There are three cooling methods for bearings: air cooling, fan cooling, and water cooling, which can be selected according to the different operating temperatures of the pump. Among them, fan cooling is especially suitable for areas lacking water or with poor water quality.

6. It has a high degree of standardization and strong versatility. In addition to the interchangeability of general standard parts, the impellers and bearing suspension components of the KZA and KZE series pumps are also interchangeable.

7. The materials used for pump flow parts are carefully selected and refined. According to the requirements of the working conditions, the choice of materials is completely decided by the user.

Our company has obtained ISO9001 2000 quality system certification. The entire process of product design and manufacturing has a strict quality control system, and product quality is fully and reliably guaranteed.

1. The pump is a single-stage, single-suction, horizontal cantilever centrifugal pump (see structure diagram)

2. The pump suction port is a horizontal axial structure, and the pump discharge port is a vertical center-up structure, and they are both cast together with the pump body.

3.  The pump body is of volute type, radially split, and supported by feet.

4． The impeller is integrally cast with a rear sealing ring and a balancing hole for balancing the axial force of the pump. Residual axial forces are borne by a pair of back-to-back corner contact ball bearings.

5. The shaft seal cavity is integrated with the pump cover and can be filled with packing seals and various mechanical seals. There is an optional water cooling jacket on the outside of the shaft seal cavity. The equipment of water cooling jacket must be specially requested or used when the temperature of the conveying medium is water exceeds 66°C, and the temperature of hydrocarbon exceeds 120°C.

6． The bearing box is equipped with a set of single row radial short cylindrical roller bearings and a set (two sets) of thrust ball bearings installed back to back. Use oil throw ring to lubricate with thin oil. The oil level is controlled simultaneously by the oil mark (oil sight window) and the oil cup. The oil cup can also play a role in automatically adjusting the oil level. The outer surface of the bearing box is cast with a heat sink, which can be air-cooled (t<120℃). Fan cooling or water cooling (t>120℃) can also be selected. Suspension feet are added to the outer end of the bearing box to assist the stable operation of the pump.

7. In order to easily remove the impeller, shaft, bearings, shaft seal and other parts without having to disassemble the suction pipe and discharge pipe during pump maintenance. This series of pumps uses an extended flexible membrane coupling component. For safety, the coupling component is also equipped with a coupling cover.

8. The pump units are all provided with a common base with anchor bolts.

9. The pump inlet and outlet flanges are manufactured with butt-welded steel flanges, and their connection types with the device’s inlet and outlet pipelines include national standards (GB/T9115.1-), Ministry of Chemical Industry standards HG20615-(American system) and HG20595- (European system), three types are selected by users.

10． Piping system: Whether it is a seal flushing piping system or a cooling water piping system, it is equipped by the pump manufacturer according to the properties and temperature of the transported liquid.