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BlogThe company is eager to collaborate with users, foster friendships, and jointly advance our shared cause. Guided by technological innovation, we strive to ensure that our product quality consistently meets and exceeds customers’ ever-increasing demands. By leveraging advanced technologies, we aim to drive rapid enterprise growth and make an even greater contribution to the development of China’s pump industry.
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CaseThe company is eager to collaborate with users, foster friendships, and jointly advance our shared cause. Guided by technological innovation, we strive to ensure that our product quality consistently meets and exceeds customers’ ever-increasing demands. By leveraging advanced technologies, we aim to drive rapid enterprise growth and make an even greater contribution to the development of China’s pump industry.
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Technical supportThe company is eager to collaborate with users, foster friendships, and jointly advance our shared cause. Guided by technological innovation, we strive to ensure that our product quality consistently meets and exceeds customers’ ever-increasing demands. By leveraging advanced technologies, we aim to drive rapid enterprise growth and make an even greater contribution to the development of China’s pump industry.
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ContactsThe company is eager to collaborate with users, foster friendships, and jointly advance our shared cause. Guided by technological innovation, we strive to ensure that our product quality consistently meets and exceeds customers’ ever-increasing demands. By leveraging advanced technologies, we aim to drive rapid enterprise growth and make an even greater contribution to the development of China’s pump industry.
QXL Vertical Oblique Flow Pump
Operating temperature (T): <85 ℃
Head (H): 4–95 m
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- Product Description
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Overview:
To adapt to equipment upgrades and replacements centered on enhancing reliability and energy efficiency, our company has comprehensively introduced advanced technologies from both domestic and international sources and developed the QGY series of two-stage, single-suction petrochemical process pumps.
The pump is primarily suitable for applications in the petrochemical industry, including refinery plants, chemical plants, and aviation fuel transportation projects; as well as in the coal chemical industry, for transporting media such as those used in coal-to-methanol and dimethyl ether production processes—media that are free of solid particles or involve flammable, explosive, high-temperature, medium-temperature, or corrosive substances.
The product has the following advantages:
1. It adopts a highly efficient and energy-saving hydraulic model with high efficiency and excellent cavitation resistance.
2. Low vibration and noise, reliable operation, and easy maintenance.
3. The pump’s bearing and sealing components have been improved, extending their service life.
4. The components have a high degree of standardization and are fully interchangeable.
Performance range:
Flow rate Q = 3–300 m³/h
Head H = 80–300 m
Temperature T = -45 to +450℃ (can reach -196℃ for special requirements)
Model meaning:
QGY(P)300-300A
Q—Corporate Identity
GY—Two-stage, single-suction petrochemical process pump
(P)—The pump features a horizontal suction design; when no “(P)” marking is present, the pump has a vertical suction and vertical discharge design.
300—Rated flow is 300 m³/h; 300—Rated head is 300 m.
A—The impeller has undergone one cutting, and the sequence is indicated by A, B, C…
Structural features:
The QGY series pumps are available in two structural types: a two-stage, single-suction, double-bearing type and a two-stage, single-suction, cantilever type, as shown in the structural diagrams. The pump casing features a radial split design, and its mounting method is horizontal centerline support, which minimizes deformation and displacement caused by thermal expansion and contraction. For pumps with a discharge diameter ≥100 mm, the pump body is designed with a dual-volute chamber to balance the radial forces acting on the pump.
The shaft end seal can be a packing seal, a mechanical seal, or a dry gas seal.
The sealed cavity is designed according to industry standards: optimizing cavity dimensions to enhance operational efficiency.
The sealed cavity can be equipped, according to engineering requirements, with various types of modular, balanced, bellows, tandem mechanical seals, or dry gas seals to meet demanding operating conditions.
The exterior of the sealed cavity is equipped with an optional water-cooling jacket. The installation of a water-cooling jacket is required only when special requirements are specified or when the temperature of the conveyed medium exceeds 66℃ if it’s water, or exceeds 150℃ if it’s a hydrocarbon. When the conveyed medium needs to be kept at a constant temperature, low-pressure steam or other heat-insulating media can also be passed through the jacket.
The impeller features a single-suction design and is entirely cast as a single piece. It is connected to the shaft via a keyway and undergoes dynamic balancing together with the rotor. Both the casing sealing ring and the impeller sealing ring are standard, replaceable components; their excellent fit is ensured by differences in material and hardness. The two impellers are symmetrically installed at the suction ports, which helps balance axial forces. Any residual axial force is borne by thrust ball bearings.
When the pump features a cantilever support structure, the bearing housing is available in either cast iron or cast steel and includes a large oil reservoir for bearing lubrication. At the coupling end, two thrust ball bearings are mounted back-to-back, while at the opposite end, a single radial ball bearing is installed.
Product Inquiry
Modern pump manufacturing enterprise
The company is eager to collaborate with users, foster friendships, and jointly advance our shared cause. Guided by technological innovation, we strive to ensure that our product quality consistently meets and exceeds customers’ ever-increasing demands. By leveraging advanced technologies, we aim to drive rapid enterprise growth and make an even greater contribution to the development of China’s pump industry.
Contact Us
Phone:+86-24-25350039
Phone:+86-24-25350035
Phone:+86-24-25350049
Email:qypump@qypump.com
Address: No. 328, Dongpinghu Street, Yuhong District, Shenyang City