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Peak season lead time is 1-3 months, while off-season lead time is one month.

Chesterton 491 Pump Mechanical Seal, Monolithic Seal Face

Name: Chesterton 491 Pump Mechanical Seal, Monolithic Seal Face
Brand: Shanghai Trisun Parts Manufacture Co., Ltd.
SKU: 724801992

Shanghai, ChinaShanghai Trisun Parts Manufacture Co., Ltd.

US$1.00

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Structure

Single End

Pressure

High Pressure Mechanical Seals

Model NO.

TS 491

Speed

High-Speed Mechanical Seal

Temperature

High Temperature Mechanical Seal

Performance

Temperature

Standard

Type

Chesterton 491

Balance

Balanced

Type 491

Chesterton 491

Mechanical Seal

Chesterton Seal

Pump Seal

Type 491 Seal

Transport Package

Neutral Packing or Customized

Specification

all sizes

Trademark

TRISUN

Origin

China

HS Code

84842000

Production Capacity

200, 000

Key features

Direct Replacement for Chesterton 491: Model TS491 serves as a direct replacement for CHESTERTON 491 seals in industrial pumps.

Non-Fretting Shaft Protection: Design prevents damage to shaft sleeves and metal parts, ensuring long-term equipment integrity.

Anti-Clog Balanced O-Ring: Features springs out of fluid and dynamic O-Ring on clean surface for reliable anti-clog performance.

High Flexibility Applications: TS491 runs against various stationary seal rings, offering maximum flexibility for diverse applications.

High Speed Capability: Supports speeds up to 20 m/s (4000 fpm) for high-speed mechanical seal requirements.

Standard Dimension Fit: Fits EN12756 L1K dimension standards, ensuring compatibility with existing pump setups.

OEM/ODM Customization: Manufacturer offers OEM and ODM services with 3 R&D engineers for custom seal solutions.

Company profile

Shanghai Trisun Parts Manufacture Co., Ltd.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 1998-02-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShanghai Trisun Parts Manufacture Co., Ltd. is identified as a Chinese manufacturer established in 2001, focused on mechanical, pump, compressor, and automotive sealing products. The provided information indicates broad production coverage, more than 10 production lines, multiple production bases, and reported mechanical-seal output of approximately 9–10 million pieces. The supplier cites OEM or cooperation relationships with SANDE, DENSO China, ITT, Volkswagen, Bizer, Flowserve, and MTU. Quality-related evidence includes WRAS, FDA, and ISO 14001:2004 certificates, although supplier-management-system certification is listed as NIL. Production and customer-case evidence is relatively strong, while after-sales service, customization processes, and financial credibility cannot be fully assessed from the available non-financial information.

Supplier typeThe supplier is explicitly classified as a manufacturer and operates as a limited company in Shanghai, China. It was established in 2001, supporting an established manufacturing identity rather than a trading-only profile.

CertificationsThe supplier reports WRAS and FDA material-quality certificates and an ISO 14001:2004 environmental management certificate. However, supplier-management-system certification is explicitly listed as NIL, so the certification profile is positive but not comprehensive.

R&D capabilityThe supplier offers a broad range of seal and valve products, including dry gas seals, welded metal bellow seals, cartridge seals, and automotive applications. It reports three R&D engineers and more than 20 years of development, indicating some product-development capability, but no explicit evidence of patented technology or measurable innovation outcomes is provided.

Production capacityProduction capability is supported by more than 10 production lines, reported mechanical-seal output of approximately 9–10 million pieces, three production bases in Shanghai, Wenzhou, and Jiangsu, and a stated one-month off-peak lead time. The records contain differing workforce and workshop-area figures, so the exact current operating scale should be verified.

Client casesThe supplier reports appointed OEM or cooperation relationships involving SANDE, DENSO China, ITT, Volkswagen, Bizer, Flowserve, and MTU. A separate trade record identifies CARBONMASTER INDUSTRIAL SALES INC as an associated buyer, but it records only one transaction and does not independently validate the broader customer claims.