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Mechanical Seal Type 21, Pump Seal T21, Sealol T43
US$1.00
1 Piece
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableStructure
Single EndPressure
Medium Pressure Mechanical SealsModel NO.
TS21Speed
General Speed Mechanical SealTemperature
Temperature Mechanical SealPerformance
WearStandard
StandardType
Ts21Balance
UnbalancedType 21 Mechanical Seal
John Crane SealType C Mechanical Seal
Us SealType A21 Pump Seal
Apex SealArmstrong Pump Seal
T21 SealWater Pump Seal
Type 21 SealDewatering Pump Seal
Mechanical SealCentrifugal Pump Seal
Pump SealSubmersible Pump Seal
Shaft SealVortex Pump Seal
Screw Pump SealVertical Pump Seal
Pump Mechanical SealSlurry Pump Seal
Slurry SealMud Pump Seal
Type 1 SealHot Oil Pump Seal
Type M3 SealHot Water Pump Seal
EPDM SealDeep Well Pump Seal
Spring Mechanical SealTransport Package
Neutral Packing or CustomizedSpecification
Silicon carbide, Tungten carbide, Carbon, ceramicsTrademark
TrisunOrigin
ChinaHS Code
84842000Production Capacity
1, 000, 000Key features
Broad Compatibility: Compatible with John Crane, US Seal, Flowserve, Roten, Sealol, and other major brands.
High Pressure Rating: Supports up to 150 PSI (10 BAR) for demanding industrial applications.
Flexible Stationary Rings: Offers John Crane types 'N', 'W', and 'WM' stationary ring options.
Single Spring Design: Features a single spring and rubber bellows seal for reliable performance.
OEM/ODM Service: Professional manufacturer offering OEM and ODM services since 1998.
CE Certified: Products are CE certified ensuring compliance with European standards.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 1998-02-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤18h 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.
Product Q&A
Q:What types of stationary rings are available?
A:
Besides the stationary ring of type 'N', other stationary rings such as John Crane types 'W' and 'WM' can also be provided.
Q:Is OEM or ODM service available?
A:
Yes, OEM and ODM services are available as the manufacturer has been producing seals since 1998.
Q:What is the lead time for orders?
A:
The average lead time is one month during the off-season and 1-3 months during the peak season.
Q:What payment terms are accepted?
A:
Accepted payment terms include LC, T/T, D/P, PayPal, and Western Union.
Q:What is the structure of this mechanical seal?
A:
It features a single spring and rubber bellows seal design with unbalanced balance type.
Send Inquiry
*To:
Shanghai Trisun Parts Manufacture Co., Ltd.
Shanghai Trisun Parts Manufacture Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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