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John Crane 502 Seal for Centrifugal Pumps
US$10.00-100.00
3 Pieces
Sample price:US$10.00/piece.Request sample
Product profile
Customization
AvailableStructure
Single EndPressure
High Pressure Mechanical SealsModel NO.
TS 502Speed
General Speed Mechanical SealTemperature
High Temperature Mechanical SealPerformance
CorrosionStandard
StandardType
HU3Balance
UnbalancedTransport Package
StandardSpecification
12mm-100mmTrademark
TRISUNOrigin
ChinaHS Code
84842000Production Capacity
100000Key features
Wide Replacement Compatibility: Replaces AESSEAL B07S and CRANE 502 B0 for industrial centrifugal pumps.
Customizable Material Options: Offers resin carbon, ceramic, NBR, SS304, SiC, TC combinations and custom designs.
Factory Direct Pricing: Direct manufacturer sales avoid distributor commissions for better pricing.
Pre-Shipment Quality Testing: Every unit is tested under engineer supervision to ensure good condition.
OEM and ODM Services: Custom designs and manufacturing available to meet specific client needs.
Multiple Seat Options: Standard BO seat with alternatives including BP and BC seats available.
Extensive Size Range: Available in various sizes from 12mm to 125mm with detailed dimensional specs.
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: ≤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.
Product Q&A
Q:Which seals does the TS 502 replace?
A:
It replaces AESSEAL B07S and CRANE 502 B0 seats, widely used for industrial pumps.
Q:What are the operating limits?
A:
Pressure up to 4MPa, speed up to 13m/s, and temperature from -30 to +200 degrees Celsius.
Q:Can the material be customized?
A:
Yes, we offer various material combinations and can design new types based on customer requirements.
Q:Do you test the products before shipping?
A:
Yes, every order is tested under engineer supervision to guarantee the seals are in good condition.
Q:What is the standard seat type?
A:
The standard seat is the BO seat (DIN24960), but BP and BC seats are also available.
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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