CQB-G High Temperature Magnetic Chemical Pump

Product Description

Model Code Explanation

Product Introduction

CQB-G high temperature magnetic drive pump (abbreviated as high temperature mag drive pump) is usually composed of four main parts: motor, magnetic coupling, water cooling device, and corrosion-resistant centrifugal pump head. Its key feature is the use of a magnetic coupling to transmit power. When the motor drives the outer magnet of the magnetic coupling to rotate, the magnetic flux passes through the gap and isolation sleeve and acts on the inner magnet, causing the pump rotor to rotate synchronously with the motor without mechanical contact, thus transmitting torque.

On the power input side of the pump, the liquid is completely enclosed within a stationary isolation sleeve, so there is no dynamic seal and therefore no leakage. The magnetic coupling uses high-temperature-resistant rare earth permanent magnetic materials, which can withstand media temperatures up to 300 °C while maintaining strong magnetic torque. A water-cooling device is installed between the motor and the magnetic coupling to prevent heat from the high temperature medium from being transferred to the motor, ensuring reliable motor operation and truly leak-free conveying of high temperature media.

CQB-G high temperature magnetic drive pump is a newly developed, fully leak-free corrosion-resistant pump with performance indicators approaching those of similar foreign products. The design type, basic parameters, and technical performance comply with relevant national standards. The wetted parts of the pump can be made from a range of corrosion-resistant materials according to the medium, including 304, 304L, 302, 321, 316, 316L, UB6, CD4Mcu, titanium alloys, and nickel-based alloys.

Product Features

CQB-G high temperature magnetic drive pump adopts a multi-circulation cooling structure to ensure reliable and stable power transmission and magnetic drive. A pin-type coupling is used to reduce noise and vibration. The use of both a back-pull-out structure and pin-type coupling optimizes overall pump length, improves heat dissipation, and greatly simplifies maintenance and parts replacement. Cooling blades are installed on the outer rotor to enhance heat dissipation and ensure the stability of the magnets. CQB-G high temperature magnetic drive pump is suitable for conveying high temperature media with temperatures up to 300 °C.

Application Range

CQB-G high temperature magnetic drive pump is widely used in petroleum, chemical, pharmaceutical, metallurgical, electroplating, environmental protection, food, film processing, water treatment, and national defense industries. It is an ideal pump for conveying high temperature flammable, explosive, volatile, toxic, rare and precious liquids, as well as various corrosive media. It is suitable for systems with working pressure up to 1.6 MPa, medium temperature up to 300 °C, medium density less than 1840 kg/m³, and viscosity not greater than 30 cm²/s, without hard particles or fibers.

Performance Parameters

Model	Flow (m3/h)	Head (m)	Shaft Power (kW)	Speed (r/min)	Efficiency (%)
CQB32-20-125G	3.2	20	1.1	2900	30
CQB32-20-160G	3.2	32	1.5	2900	28
CQB40-25-105G	6.3	12.5	1.1	2900	39
CQB40-25-125G	6.3	20	2.2	2900	35
CQB40-25-160G	6.3	32	3.0	2900	32
CQB40-25-200G	6.3	50	5.5	2900	25
CQB50-40-85G	12.5	8	1.5	2900	49
CQB50-32-105G	12.5	12.5	2.2	2900	47
CQB50-32-125G	12.5	20	4.0	2900	42
CQB50-32-160G	12.5	32	4.0	2900	39
CQB50-32-200G	12.5	50	7.5	2900	31
CQB50-32-250G	12.5	80	18.5	2900	25
CQB65-50-125G	25	20	4.0	2900	30
CQB65-50-160G	25	32	7.5	2900	28
CQB65-40-200G	25	50	15	2900	39
CQB65-40-250G	25	80	22	2900	35
CQB80-65-125G	50	20	7.5	2900	32
CQB80-65-160G	50	32	15	2900	25
CQB80-50-200G	50	50	22	2900	49
CQB80-50-250G	50	80	37	2900	47
CQB100-80-125G	100	20	15	2900	42
CQB100-80-160G	100	32	22	2900	39
CQB100-65-200G	100	50	30	2900	31
CQB100-65-250G	100	80	55	2900	25
CQB100-65-315G	100	125	90	2900	50

Note: Motors of 0.75 kW and above can be supplied as explosion-proof motors. Wetted parts are available in materials such as 304, 304L, 316, and 316L. Non-standard magnetic drive pumps can be customized according to customer requirements.

Installation and Operation Instructions

Installation

• The pump must be installed horizontally. Before start-up, check the lubricant level in the cooling box; if the oil level is too low, replenish it in time.
• Before starting the pump, open the cooling water circuit. The opening of the cooling water inlet valve should be adjusted according to the temperature of the cooling water outlet when the pump is operating normally.
• If the liquid level in the suction tank is higher than the pump shaft centerline, open the suction valve before starting the pump. If the liquid level is lower than the shaft centerline, a foot valve must be installed in the suction pipeline.
• Before use, check that the motor fan rotates freely without jamming or abnormal noise, and that all fasteners are properly tightened.
• Confirm that the motor rotation direction is consistent with the rotation arrow on the magnetic drive pump.
• After the motor starts, slowly open the discharge valve. When the pump reaches normal operating conditions, adjust the discharge valve to the required opening. Before stopping the pump, first close the discharge valve, then cut off the power supply, and finally close the cooling water valve.

Important Notes

• The bearings of the CQB-G high temperature magnetic drive pump are cooled and lubricated by the conveyed medium. Dry running is strictly prohibited. Avoid restarting after a power failure if this would cause the pump to run without medium.
• If the conveyed medium contains solid particles, a strainer must be installed at the pump inlet. If the medium contains ferromagnetic particles, a magnetic filter should be used.
• The conveyed medium and its temperature must be within the allowable range of the pump materials. Standard limits: medium temperature up to 280 °C, working pressure up to 1.6 MPa, density not greater than 1840 kg/m³, and viscosity not greater than 30 cm²/s, without hard particles or fibers. Special operating conditions must strictly follow the contract specification.
• For media that tend to crystallize or precipitate, flush the system and drain the pump immediately after use to prevent deposits inside the pump.
• After approximately 1000 hours of normal operation, the pump should be disassembled to inspect the bearing and end-face moving ring wear, and worn parts should be replaced in time.
• The inner and outer magnetic couplings of this pump series use high-performance permanent magnetic materials, which may affect sensitive electronic and magnetic devices. Keep items such as pacemakers, credit cards and other magnetic cards, calculators, computer disks, and watches at a safe distance from the pump.

OEM & Custom Solutions

Chaodun Pump provides OEM and ODM customization for CQB-G magnetic pumps, including material (304, 316, 316L, titanium, nickel alloy), power, and voltage configurations. All pumps are CE and ISO9001 certified and designed for high-temperature, corrosion-resistant chemical applications.

FAQs for Oversea Buyers

Q1: What is the CQB-G High Temperature Magnetic Pump used for?
It transfers hot corrosive or flammable liquids such as acids, alkalis, or oils up to 300°C.

Q2: What materials are available?
304, 316, 316L stainless steel, titanium alloy, and nickel-based alloys depending on medium.

Q3: Can it handle explosive or toxic liquids?
Yes, its leak-free magnetic drive design ensures safe handling of hazardous fluids.

Q4: Is cooling required during operation?
Yes, a water-cooled system is built in to protect the motor from heat transfer.

Q5: What industries use CQB-G pumps?
Chemical, petroleum, metallurgy, pharmaceutical, electroplating, and energy sectors.

Q6: What’s the maximum operating temperature?
Up to 300°C continuous duty.

Q7: Does Chaodun Pump offer customization?
Yes, OEM/ODM available for material, voltage, flow, and motor type per project needs.