Three screw pump

Three screw pump

The 3GR type three-screw pumpis a rotor type positive displacement pump. The principle is that the primary and secondary moving screws cooperate with the meshing and then use the inner and outer parts of the bushing with three holes to cooperate, so that the oil pump inlet and outlet have a number of sealed chambers. This chamber will allow the oil pump to continuously enter the inside of the oil pump during operation, will enter the screw oil pump, then use the axial movement to move the liquid to the outlet and also allow the input to gradually increase to form a It is continuous, stable and also capable of axially moving the pressurized liquid.

Parameters

Flow rate: Q=2～320m3/h

Pressure: H=0.1～4.0 Mpa

Speed: n=400rpm/630rpm/720rpm/960rpm

Viscosity: 3.0～760mm²/s；

Temperature: T=-20～120℃

ZGPV screw pumpFeatures

3GR screw pump has a simple structure: it has various structural forms, generally a small flow rate of 0.2~6.5m3/h. The pump body and bushing of the 3GR screw pump are integrated (collectively referred to as the pump body), and the shaft seal is a mechanical seal. The pump bushing above the medium flow is a separate part fixed in the pump body. The large flow pump is mostly made into a double suction structure horizontal installation. The shaft seal has two kinds of mechanical seal and packing seal depending on the transport medium. ZGPV screw pumpis installed in both horizontal and vertical versions. The prime mover is AC and DC marine motors.

3GR screw pump has a long service life: the active screw of the 3GR screw pump is driven by the motor, there is no mechanical contact between the main and the slave rods, and the pressure liquid is driven to rotate from the rod around the shaft line, between the main and the slave rods. There is a layer of oil film protection between the screw and the bushing, so the mechanical friction of the pump is extremely small and the service life is long.

The liquid pumped by the 3GR screw pump moves linearly in the pump at a constant speed, so the pressure pulsation is small, the flow rate is stable, and the noise is low. Since the inertia of the rotating component is small, the starting torque and vibration are small.

3GR screw pump has high suction capacity.

Structure

MOC

	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

ZGPV screw pumpApplication

Three-screw pump is suitable for lubricating oil and lubricating liquid for fuel oil, lubricating oil, hydraulic oil, crude oil, and other similar oils.

To handle industrial and domestic wasterwater, and muddy water containing solid particles and short fibre;To handle mediums such as oil remains in oil tankers,oil water,oil residue and etc.;

To handle thick paste ,emulsified paste,unguent cosmetics and etc.;

To handle adhesive starch ,cooking oil ,honey, pulpy sugar, mashed fruit,cream and other leftovers;

To handle paste in the industries of brewage,construction ,mining ,printing ,papermaking and etc

screw pump manufacturer: Sichuan Zigong Pump & Valve Co., Ltd.

Visit company website:

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