Screw Pump

LQ3G insulation three screw pump

The LQ3G type three-screw pump (also known as insulation type asphalt pump and high viscosity pump) produced by our company is designed and produced according to the national standard GB/T10886-2002. The pump is a positive displacement pump, which utilizes the screw meshing principle, and the rotating screw meshes with each other in the pump sleeve, and the medium to be conveyed is enclosed in the meshing cavity, and is continuously and uniformly pushed to the discharge port along the axial direction of the screw. Provides stable pressure.There are various materials available for our LQ3G type three-screw pump, including cast iron, stainless steel SS304, SS316, SS316L, duplex stainless steel, Titanium...

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Parameters
Features
Structure
MOC
Configuration
Application
Performance

■Flow rate: Q=2～600m3/h

■Pressure: H=0.1～6.3 Mpa

■Speed: n=400rpm/630rpm/720rpm/960rpm

■Viscosity: 3.0～760mm²/s；

■Temperature: T=-20～120℃

1) LQ3G type insulated three-screw pump can transport all kinds of non-corrosive oils and similar oils and lubricating liquids. The viscosity of the transport liquid is generally in the range of 3.0-760 mm 2 /s (1.2-100 oE). The high viscosity medium can be transported by heating and viscosity reduction. Its temperature does not exceed 350 ° C.

(2) The LQ3G thermal insulation screw pump (insulation type asphalt pump) produced by our company has the advantages of conveying high viscosity and high temperature lubricating liquid. It is commonly used for the transportation of medium such as asphalt heavy fuel oil and heavy gear oil. The heat carrier can be steam, hot oil and hot water, and the cold carrier can be a gas and a liquid.

(3) LQ3G thermal insulation three-screw pump also has medium continuous conveying, no stirring, no pulsation; low vibration, low noise; high pressure, high efficiency; simple structure, convenient disassembly and assembly; slight wear and long life.

LQ3G insulation three screw pump

1. Discharge casing

2. Connection rod

3. Stator

4. Screw shaft

5. Universal joint

6. Suction chamber

7. Intermediate shaft

8. Seal cover

9. Axial seal components

10. Bearing housing

11. Bearing

12. Transmission shaft

13. Bearing cover

14. Couplings

15. Bracket

16. Motor

No.	Description	Material
		Anti-corrosion alloy		Cast steel		Stainless steel
		China standard	ASTM standard	China standard	ASTM standard	China standard	ASTM standard
1	Pump casing	20# Alloy Titanium Nickel 904L Ti/Pd Alloy Monel	Hastelloy Monel Ⅱ-B Ⅱ-C Ni-Resist1 Ni-Resist2 Ni-Resist3	25# 35#	WCA WCB	ZG1Cr13 ZG2Cr13 ZG00Cr18Ni10 ZG0Cr18Ni9 ZG0Cr18Ni12Mo2Ti ZG0Cr17Ni4CuNb ZG1Cr18Ni9 ZG1Cr18Ni9Ti ZG00Cr17Ni14Mo2 0Cr26Ni5Mo2 0Cr17Mn13Mo2N 00Cr18Ni5Mo3Si2	CA-15 CA-15M CF-3(304L) CF-8(304) CF-8M(316) CF-3M(316L) CN-7M(320) CD-4MCu
2	Stator
3	Rotor
4	Suction chambe


5	Intermediate shaft	Carbon steel SS420 2205 SS304 SS316
6	Bearing housing	Cast iron

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
Mechanical seal	Zigong brand	Burgmann, Sihuan riji, Chengdu Yitong
Flanges&counter flanges	China standard	European std, German std, American std, Japanese std

(1) Three-screw pumps are widely used in various industries such as resin, petroleum, chemical fiber, metallurgy, machinery, electric power, machine tools, leather, shipbuilding, glass, and highway.

(2) Three-screw pump is suitable for lubricating oil and lubricating liquid for fuel oil, lubricating oil, hydraulic oil, crude oil, asphalt, resin and other similar oils.

(3) The three-screw pump is used as a lubrication pump in the industrial field, as a hydraulic pump in the hydraulic system, as a conveying and boosting pump in the fuel system, and as a conveying and refueling pump in the oil conveying system.

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