What are common problems with Self-Priming Pumps?

Issues include pressurized discharge lines, air leaks in suction piping, debris accumulation, excessive wear increasing clearances, and freezing damage in cold environments.

High-Efficiency Self-Priming Non-Clog Sewage Pump for Easy Drainage

Name: High-Efficiency Self-Priming Non-Clog Sewage Pump for Easy Drainage
Brand: Shanghai Semhai Pump Co., Ltd.
SKU: 1990801852

Shanghai, ChinaShanghai Semhai Pump Co., Ltd.

US$200.00-50,000.00

1 Set

Product profile

Customization

Available

After-sales Service

Online After-Sale Service

Warranty

12 Months

Model NO.

150ZW150-50-45

Max.Head

110m-150m

Max.Capacity

>400 L/min

Driving Type

Motor

Impeller Number

Single-Stage Pump

Working Pressure

Middle Pressure Pump

Influent Type of Impeller

Single Suction Pump

Position of Pump Shaft

Horizontal Pump

Pump Casing Combined

Verticaljoint Surface Pump

Mounting Height

Suction Centrifugal

Impeller

Closed

Usage

Pump, Pumps, Condensate Pump, Slurry Pump, Circulating Pump, Trash Pump

Material

Cast Iron, Stainless Steel

Suction Head

Max. 12m

Suction Distance

Max. 150m

Pump Struture

Self-Priming Type

Transport Package

Plywood Case

Specification

1500*1200*1200mm

Trademark

SEMHAI or OEM

Origin

China

HS Code

8413709990

Production Capacity

1000000sets/Year

Key features

High Efficiency Self-Priming: Evacuates air from suction line at startup for immediate pumping without extra equipment.

Versatile Material Options: Available in Cast Iron, Stainless Steel (ANSI304/316), and Duplex SS for various liquids.

Wide Application Range: Suitable for water, oil, chemicals, food, sewage, and industrial wastewater transfer.

Robust Mechanical Seal: Equipped with single or double mechanical seals for cooling, lubrication, and leak prevention.

Flexible Coupling Design: Absorbs vibrations and thermal expansion to reduce noise and protect shafts from damage.

Wear-Resisting Components: Features wear rings and balance holes to handle axial thrust and ensure long-term performance.

Comprehensive Warranty: Includes 12 months warranty coverage with online after-sales service support.

Company profile

Shanghai Semhai Pump Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2008-07-10Nearest Port: ShanghaiAverage Response Time: ≤2.46hTerms of Payment: LC, T/TInternational Commercial Terms(Incoterms): FOB, CFR, CIF

AI-Powered supplier vetting

SummaryShanghai Semhai Pump Co., Ltd. is a trading company and manufacturer based in Shanghai, China, specializing in a wide range of pumps and fluid equipment solutions. The company holds ISO 14001 and ISO 9001 certifications, indicating a commitment to quality and environmental management systems. With significant production capabilities and an extensive export market, they show potential in global business engagement. Their R&D team and after-sales service highlight a focus on innovation and customer satisfaction. However, explicit details on financial credibility and customization capabilities are not fully accessible from the provided data.

Supplier typeShanghai Semhai Pump Co., Ltd. is classified as both a trading company and manufacturer/factory, indicating a comprehensive role in both production and distribution.

CertificationsThe supplier holds ISO 14001 and ISO 9001 certifications, which are significant indicators of their adherence to environmental and quality management standards.

After-Sales capabilityThe company offers repair and maintenance services for pumps and pump stations, supported by a team of trained technicians and maintenance engineers.

R&D capabilityThe company has a dedicated R&D team with 11-20 engineers, focusing on various pumps, motors, and control devices, indicating a solid capability for innovation.

Production capacityThe supplier operates 10 production lines with an annual output capacity of 50 million pump sets, serving diverse global markets.

Product Q&A

Q:What are the advantages of Self-Priming Centrifugal Pumps?

They can handle a variety of liquids including slurries and corrosive fluids, continue pumping after submersion ends, and eliminate priming steps for frequent intermittent operations.

Q:What are the disadvantages of Self-Priming Centrifugal Pumps?

They require initial priming liquid, may be larger due to reservoir needs, and must be placed close to production lines to avoid reservoir depletion.

Q:Are Positive Displacement Pumps Self-Priming?

In principle, yes, including rotary gear, lobe, vane, and diaphragm pumps, but dry running can cause overheating, seal wear, or cavitation damage.

Q:Are Centrifugal Pumps Self-Priming?

Standard centrifugal pumps are not, but with modifications like a reservoir tank, they can become self-priming, though they still cannot operate when completely dry.

Q:Why might a Self-Priming Pump fail to prime?

Common causes include air leaks in the suction line, debris plugging the impeller, air binding due to closed valves, plugged recirculation ports, or insufficient suction lift.