Can cartridge seals reduce pump downtime?

Yes. Pre-set assembly means a faster, more repeatable changeout with less skill needed on site. Repair shops report shorter mean time to repair after switching to cartridge seals.

Cartridge Mechanical Seal for Sulzer APP Pump

Name: Cartridge Mechanical Seal for Sulzer APP Pump
Brand: FBU Sealing Technology (Suzhou) CO.,Ltd
SKU: 2323036115

Jiangsu, ChinaFBU Sealing Technology (Suzhou) CO.,Ltd

US$380.00

1-2 Pieces

US$340.00

3-10 Pieces

US$300.00

11+ Pieces

Product profile

Customization

Available

Structure

Cartridge

Pressure

Medium Pressure Mechanical Seals

Model NO.

sulzer APP Pump

Speed

General Speed Mechanical Seal

Temperature

High Temperature Mechanical Seal

Performance

Corrosion

Standard

Type

Mechanical Seal

Balance

Balanced

Applicable Pump Model

Sulzer APP Pump

Flush Plan

11 / 21 / 31 / 32 / 52 / 53A / 54

Material Combination

Carbon/Sic, Sic/Sic

Application

Chemical Process Pump, Petroleum, Refinery

Transport Package

Carton Box

Specification

30, 40, 50, 60, 90

Trademark

FBU

Origin

China

HS Code

8484200090

Production Capacity

5000pieces/Year

Key features

A mechanical seal stops process fluids and gases from escaping along the rotating shaft of equipment such as centrifugal pumps, mixers, and compressors.

Sites running modern equipment, where maintenance crews need repeatable installs without specialist alignment work.

A complete seal shipped as one factory-set unit: faces, springs, sleeve, and gland plate arrive pre-fitted, with no on-site assembly steps.

Mechanical seals rely on precisely matched contact faces to hold leakage at a near-zero level while meeting the environmental and safety requirements of modern industry.

Company profile

High Repeat Buyers ChoiceProduction Process VisualizationManagement CertificationStandardized quality control

FBU Sealing Technology (Suzhou) CO.,Ltd

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤0.31h

AI-Powered supplier vetting

SummaryThe supplier demonstrates professional technical and customization capabilities, including 3D software design, sample- and design-based customization, ODM, and OEM services. Its stated production environment includes high-end CNC equipment, network-connected machines, CAM control, and multiple machining, welding, testing, and measurement facilities. Quality and service processes are supported by documented procedures for supplier service assessment, corrective and preventive actions, complaint handling, quality assurance, and material traceability. The supplier offers overseas equipment installation, debugging, repair, and maintenance in Malaysia. Innovation evidence is positive because new products were developed during the past year, although no SDK is available. Financial credibility cannot be assessed because the supplied financial figures are excluded from consideration and no non-financial financial assessment is provided. Certification holdings and identifiable customer cases are not sufficiently...

Supplier typeThe supplier is identified as a professional technical supplier, while its business scope covers mechanical equipment, pumps, vacuum equipment, valves, plugs, rubber products, and special ceramic products. However, the company type is also stated as a trading company, so its exact manufacturing-versus-trading role is mixed rather than fully clear.

After-Sales capabilityThe supplier states that it provides professional after-sales service and has documented procedures and records for service-capability assessment, corrective and preventive actions, and customer complaints. It also offers overseas debugging, repair, maintenance, and equipment installation in Malaysia, supporting a positive assessment of after-sales capability.

R&D capabilityThe supplier reports R&D capability, new product development during the past year, ODM services, and OEM services for well-known brands. It also describes an intelligent manufacturing setup using network-connected CNC equipment, CAM control, and real-time equipment data, although no SDK is available.

Production capacityProduction-related evidence includes CNC turning, vertical boring and milling, sawing, welding, lapping, hardness testing, flatness measurement, digital depth measurement, and three-coordinate measurement. The supplier also describes a high-end CNC-based intelligent factory, but its company type is stated as a trading company, so the scale and ownership of production capacity are not fully established.

Customization capabilityThe supplier explicitly supports customization from samples, full customization, customization from designs, minor customization, and flexible customization. It also offers 3D software design, ODM, and OEM services, providing direct evidence of broad customization capability.

Product Q&A

Q:Why do mechanical seals fail?

Failure comes from face wear, dry running, thermal shock, corrosion, solids between the faces, or incorrect installation. Each leaves a distinct pattern on the faces that a trained eye can read.

Q:Why does my pump mechanical seal keep leaking?

Recurring leaks point to a root cause that was not fixed: poor lubrication, solids in the fluid, excessive shaft runout, or a seal type unsuited to the duty. Replacing the seal without fixing the cause just repeats the failure.

Q:Can you make a mechanical seal based on an existing seal?

Yes. We can copy an existing seal from the physical sample or its drawing, then adjust materials if the original choice was poor for the service. This is a common route for hard-to-find seals.

Q:How do I stop a mechanical seal from leaking?

First find the cause: check the faces, the set length, and the fluid compatibility. Clean or replace the seal, correct the installation, and confirm the pump shaft and chamber are within tolerance.

Q:Can you provide a replacement seal for my pump model?

Yes. With the pump model and shaft size, we can supply either the original-style seal or a proven equivalent, often from stock for common ANSI and centrifugal pumps.