FZA/FZE series petrochemical process pumps

    overview   

NX-B/C series process pumps

This series of pumps is horizontal, single-stage centrifugal pump, rear pull-out design, in line with the "Centrifugal Pump for Petroleum, Heavy Chemical and Natural Gas Industry" ANSI/API610-2004 tenth edition and GB/T3215-2007 "Centrifugal pump for petroleum, heavy chemical and natural gas industry" national standards.

    application   

Award-winning clean and slightly contaminated, low and high temperatures, chemically neutral and corrosive media.

    size   

    application   

· Refineries, petrochemical industry, coal processing industry, and cryogenic processes

· Chemical industry, papermaking, pulp industry, sugar industry and other general process industries

· Water supply plants and desalination plants

· Heating and air conditioning systems

· auxiliary system of the power station

· Environmental protection engineering

· Ship and offshore engineering

    Performance   

Caliber DN 25-400mm

The flow rate Q can reach 2600m3/h

Head H up to 300m

Working pressure P up to 7.5MPa (related to material and operating temperature, see P-T diagram for details)

Operating temperature t -80°C- 450°C

    Devise   
The NX-B/C series is a radial part of the pump casing, of which NX-B is an API610 standard OH1 type pump and NX-C is an API610 standard OH2 type pump. high degree of generalization, hydraulic components and bearing components are consistent; series pump type can be equipped with Baowen jacket structure; High pump efficiency; The corrosion margin of the pump body and impeller is large; The shaft is protected by shaft sleeve sealing, which is completely isolated from the medium, avoiding the corrosion of the shaft and improving the overall life of the pump. The motor adopts an extended conjunctival coupling, which can be maintained without disassembling the pipeline and motor, which is very convenient and fast.

Pump body
The pump body with a diameter of DN80 or above adopts a double volute to balance the radial force, thereby reducing the noise of the pump and extending the bearing life. The NX-B pump body is supported by the foot and the NX-C pump body is the center support.

Flange

Suction flange horizontally suction, discharge flange vertically upward, flange can withstand large pipe mouth load. The flange can perform GB, HG, DIN, ANSI standards according to customer requirements, and the suction flange and discharge flange have the same pressure registration.

Cavitation
The blade extends to the impeller inlet, and the caliber is enlarged, so the pump has excellent anti-cavitation performance, and under special circumstances, an induction wheel can be added to improve the anti-cavitation performance of the pump.

Bearings and lubrication

The bearing suspension is a whole, the bearing is lubricated by oil bath, and the oil ring is thrown to ensure full lubrication, so as to prevent the local temperature rise caused by the low level of lubricating oil. Depending on the specific working conditions, the bearing suspension can be uncooled (with heat dissipation ribs), water-cooled (with water-cooled jacket) and air-cooled (with fans). The bearings are sealed by a labyrinth dust disc.

Shaft seal
The shaft seal can be configured according to API682 to ensure the sealing reliability of the pump under different working conditions.

Pump steering

From the direction of the drive end, the pump rotates in a clockwise direction.

Operating parameters of each model

NX-C series process pumps

Caliber DN 25-400mm

The flow rate Q can reach 2600m3/h

Head H up to 300m

Working pressure P up to 2.5MPa (depending on material and operating temperature)

Operating temperature t -80°C - 177°C

This type of pump is an API610 OH1 type pump.

Scope of application:
Convey slightly contaminated, highly viscous, chemically neutral and corrosive media.