Is this seal suitable for high-speed applications?

Yes, it is designed for high-speed applications with a speed limit up to 13 m/s.

What is the structure of this mechanical seal?

It is a single-end, unbalanced mechanical seal designed for high pressure and high temperature environments.

Type21-1 1/2" Type21-1.5" Mechanical Seals Replace to John Crane Mechanical Seal Type 21 Material Car/Cer/Vit

Name: Type21-1 1/2" Type21-1.5" Mechanical Seals Replace to John Crane Mechanical Seal Type 21 Material Car/Cer/Vit
Brand: Zhangjiagang Akman Seal Manufacturing Co., Ltd.
SKU: 1957773175

Jiangsu, ChinaZhangjiagang Akman Seal Manufacturing Co., Ltd.

US$26.00-28.00

5 Pieces

Product profile

Customization

Available

Structure

Single End

Pressure

High Pressure Mechanical Seals

Model NO.

AKM-Type21

Speed

High-Speed Mechanical Seal

Temperature

High Temperature Mechanical Seal

Standard

Balance

Unbalanced

Transport Package

Carton

Trademark

Akman

Origin

China

HS Code

8484200090

Key features

Broad Compatibility: Direct replacement for John Crane Type 21, AES P04/P04T, Flowserve 110, Roten 21A, SEALOL 43 CU, STERLING 212A, and VULCAN 11.

Versatile Applications: Ideal for centrifugal, rotary, and turbine pumps, compressors, chillers, wastewater treatment, and HVAC systems.

Durable Seal Design: Features 'dent and groove' drive band to prevent elastomer bellows slip and protect the shaft from wear.

Non-Clogging Spring: Single-coil spring design offers greater dependability and prevents fouling due to fluid contact.

Flexible Compensation: Elastomer bellows automatically compensates for shaft-end play, run-out, primary ring wear, and equipment tolerances.

Premium Materials: Available with Carbon, SiC, SSiC, TC faces and 304SS/316SS metal components for various corrosive environments.

Fast Off-Season Delivery: Average lead time within 15 workdays during off-peak seasons.

Company profile

Zhangjiagang Akman Seal Manufacturing Co., Ltd.

Jiangsu, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2017-07-01Average Response Time: ≤24hTerms of Payment: T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW

AI-Powered supplier vetting

SummaryZhangjiagang Akman Seal Manufacturing Co., Ltd. is a China-based trading company and manufacturer/factory in Jiangsu, focused on mechanical seals for pumps, reactors, agitators, and other rotating equipment. The supplier reports more than 15 years of accumulated experience, 10 production lines, 11–20 quality-control staff, and 6–10 years of R&D-engineer experience. It states that its products serve power plants, petrochemical, textile and dyeing, food and brewery, pharmaceutical, water-treatment, and shipyard applications. The company emphasizes quality, service, technical support, and customized programs. It began exporting in 2017 and reports that 21%–30% of total sales come from exports, including agent-assisted exports. No certification information is provided. Financial assessment is limited because the available registered-capital information is not sufficient to establish broader financial credibility.

Supplier typeThe supplier is identified as both a Trading Company and Manufacturer/Factory, operating in industrial equipment and components and manufacturing and processing machinery. Its stated business focuses on designing and manufacturing mechanical seals, indicating a combined trading and production model.

After-Sales capabilityAkman states that it provides hands-on service, technical support, fast response, and best service, and presents customer commitment as a core value. These are explicit service commitments, although the slices do not describe service coverage, response-time guarantees, warranty terms, or a formal after-sales process.

R&D capabilityThe supplier reports efforts to improve management and technology, 6–10 years of R&D-engineer experience, and product design and manufacturing capability for multiple mechanical-seal applications. This supports some R&D and technical capability, but no specific innovations, patents, or documented development results are provided.

Production capacityThe company is identified as a manufacturer/factory and states that it designs and manufactures mechanical seals. It reports 10 production lines and 11–20 quality-control staff, providing direct evidence of established production and quality-control resources.

Customization capabilityAkman explicitly aims to provide customized programs and offers mechanical seals for pumps, reactors, agitators, and other rotating equipment, including OEM mechanical seals among its product keywords. This indicates support for application-specific or customized seal requirements.

Client casesThe supplier states that its products are widely used in power plants, petrochemical, textile and dyeing, food and brewery, pharmaceutical, water-treatment, and shipyard applications. These are declared industry-use cases, but no named customers, project references, quantities, or independently verified case studies are provided.