Chemical Pump

Horizontal chemical axial flow pump

Owns 8 patent technologies, the comprehensive performance of ZW axial flow pump ranks in top among all the local competitors in China. It is also known as chemical elbow pump, chemical propeller pump, evaporative circulation pump and forced circulation pump for brine/salt industry. It is a product of provincial achievement, and it gained the award of technology progress of China machinery industry. There are plenty of real sales achievements for every single specification from diameter 250 mm to 1600 mm. ZW axial-flow pump is widely used as forced circulation pump in the applications of big flow rate with low total head, for example: forced circulation evaporator, MVR water treatment, vacuum salt industry, aluminum oxide, sodium sulfate, chlorine-alkali, sugar making, seawater desalination... There are various materials available for our axial flow pumps, including stainless steel SS304, SS316, SS316L, 904L, duplex stainless steel CD4MCu, 2205, 2507, Alloy 20, Hastelloy, Titanium, Monel, Nickel...

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Parameters
Features
Structure
MOC
Configuration
Application
Performance

■Flow rate: Q=250～55000（m³/h）

■Total head: H=8～1.5 (m)

■Speed: n=180～1450rpm

■Fluid s.g.: γ ≤1.5

■Fluid temperature: T=0～180℃

■Fluid viscosity: ν ≤600(mm2/s)

■Pump diameter: Ф250mm~1800mm

■The impeller is high hydraulic efficiency type and is designed to be applicable to the requirements of evaporation system, it is able to adapt the fluctuation of evaporator loading, therefore reduces the energy consumption and increases the output.

■Adopting the adjustable impeller to fit different applications.

■Butt welding and thermal compensation reduces the investment cost.

■Low pump speed and low linear velocity reduces the damage of crystals.

■Pipe hung arrangement solved the stress compensation caused by heat expansion, no need of pump baseplate and expansion joint.

■Slight vibration, low noise, smooth operation, high efficiency and energy-saving.

■Elbow structure for pump body, piece-welded body and casted body for selection.

■Pump impeller is cantilever type with spherical hub, impeller blades are adjustable.

■Pump shaft adopts butt welding workmanship, the wetted parts or possible wetted parts are made from stainless steel or other corrosive materials.

■Mechanical seal and packing seal can be interchangeable.

■Adopting cartridge mechanical seal, reliable and easy for maintenance.

■Enlarged cylinder type bearing housing with oil level glass and oil filler, which extends the bearing life and interval of lubricant changing.

■Pump and be driven by motor through V-belts,gear box or directly through couplings. For pipe hung pump,the universal joint transmission must be adopted if the motor ≥200kW.

Structure drawing is as below

Horizontal chemical axial flow pump

1. Casing

2. Impeller hub cover

3. O-ring

4. Impeller

5. Adjust bolt

6. Gland plate

7. O-ring

8. Elbow

9. Shaft

10. Catridge mechanical seal

11. Water retaining ring

12. Front bearing cover

13. Skeleton oil seal

14. Front bearing

15. Bearing housing

16. Oil level gauge

17. Oil leveler

18. Rear bearing

19. Bearing spacer

20. O-ring

21. Bearing box

22. Lock nut

23. Retaining gasket

24. Rear bearing cover

25. Skeleton oil seal

26. Key

27. Oil flinger

	K-pipe hung arrangement No baseplate for both pump and motor,no expansion joint on pipe. Pump is driven by motor through V-belts.This arrangement is only applicable for the pump diameter from 300-500mm and motor capacity below 55Kw.
	E-half pipe hung arrangement No baseplate for pump,pump is hung on the pipe,no expansion joint on pipe.For pumps above 700mm diameter,there must be a fluctuating frame at the horizontal pipe connecting the pump.Only V-belts and universal joint are recommended as the transmission method for this arrangement.
	F-horizontal arrangement Baseplate is required for both pump and motor.An expansion joint on the pipe is also required for high temperature applications.Transmission methods can be V-belts and direct coupled.
For easy maintenance purpose,the above mentioned arrangements require a casing between horizontal pipe and pump.

The name of material	The code name of materials		The name of spare parts
The name of material	International standard	American standard	Impeller	Impeller cover	Pump body (with casing)
Corrosion resistant cast iron	Aluminum cast iron gray cast-iron nodular cast iron Cr28 Cr30	C.I D.I	● ● ● ●	● ● ● ●



Carbon steel	Q235-A 23 25	A A36 WCA WCB			● ●
Carbon steel	Q235-A 23 25	A A36 WCA WCB			● ●
Stainless steel	(ZG)00Cr18Ni10	CF-3(SS304L)	●	●	●
	(ZG)0Cr18Ni9	CF-8(SS304)	●	●	●
	(ZG)0Cr18Ni12Mo2Ti	CF-8M(SS316)	●	●	●
	(ZG)00Cr17Ni14Mo2	CF-3M(SS316L)	●	●	●
	(ZG)0Cr18Ni9Ti	CD-4MCu	●	●	●
	(ZG)1Cr18Ni9Ti	Monel	●	●	●
	(ZG)1Cr18Ni12Mo2Ti		●	●	●
	NO.20 alloy		●	●	●
	1Cr13		●	●	●
Duplex Stainless steel	0Cr26Ni5Mo2	(AlSi)329	●	●	●
	0Cr17Mn13Mo2N		●	●	●
	00Cr18Ni5Mo3Si2		●	●	●
Anti-corrosion alloy	TA1、TA2、TA3	Monel	●	●	●
	TA9、TA9-1	H-B	●	●	●
	TA10	H-C	●	●	●
		Ni-Resist1	●	●	●
		Ni-Resist2	●	●	●
		Ni-Resist3	●	●	●

Item	Factory standard	Optional configurations
Motor	Reputed China brands	ABB, Siemens, Nanyany, Jiamusi or designated brands
Bearing	Reputed China brand	SKF, NSF, FAG or designated brands
Gear box	Reputed China brand	SEW, Shandong Chenghua, Zhengzhou machinery instituteSiemens, Flender
Flanges&counter flanges	China standard	European std, German std, American std, Japanese std
Couplings	Pin type	Flexible diaphragm coupling

ZW chemical axial flow pump is mainly applicable for the applications of big flow rate and low total head, like force circulation pump for evaporator systems:

■Salt-making force circulation pump

■Sodium sulfate force circulation pump

■Aluminum oxide force circulation pump

■Sugar-making force circulation pump

■Chlorine alkali force circulation pump

■MVR water treatment force circulation pump

Horizontal chemical axial flow pump