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551 551A Water Pump Seal Spring Elastomer Bellows Mechanical Seal
US$1.00
1 Piece
Product profile
Customization
AvailableStructure
Single EndPressure
High Pressure Mechanical SealsModel NO.
551 551ASpeed
High-Speed Mechanical SealTemperature
Temperature Mechanical SealPerformance
TemperatureStandard
StandardType
HU1Balance
BalancedRotary Ring Face
SS316L/Sic/TcStationary Ring Face
Carbon/Sic/TcElastomers
NBR/Viton/EPDM/PTFE/FfkmSprings
SS304/SS316Metal Parts
410s/SS304/SS316/SS316LTransport Package
as RequirementSpecification
As RequirementTrademark
BEOrigin
ZhejiangHS Code
8484200090Production Capacity
1000000/MonthKey features
Wide Material Options: Rotary ring face available in SS316L, SiC, TC; Springs in SS304/SS316.
Broad Temperature Range: Operates effectively from -20 to 180 degrees Celsius.
High Compatibility: Suitable for water, oil, weak acid, alkali, and organic solvents.
Stable Performance: Features simple structure with great spring compensation.
Customizable Materials: Material changes possible to meet specific operating parameters.
International Standards: Complies with DIN24960, ISO3069, and GB6556 standards.
Versatile Application: Used in water pumps, vacuum pumps, and heat-exchange oil pumps.
Competitive Alternative: Direct alternative to John Crane Type 551 and EagleBrgmann BT-RN.
Company profile
Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-07-02Nearest Port: Shanghai, Ningbo, ShenzhenAverage Response Time: ≤5.65hTerms of Payment: T/T, PayPal, Western Union, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF
AI-Powered supplier vetting
SummaryHangzhou Bestseal International Trade Co., Ltd. is a China-based limited company classified as both a trading company and manufacturer/factory, supplying seals. It reports substantial export activity, eight years of export experience, and access to both agent-assisted and self-operated export methods. The supplier offers extensive customization, ODM, and OEM services, including support for well-known brands. However, it is not identified as a professional technical supplier, does not provide 3D software design, has no SDK, and reported no new products during the past year. Its service infrastructure is limited: no inventory, overseas warehouse, showroom, overseas branch or agent, or offline trade-show participation is reported. Peak- and off-season lead times are each within 15 workdays. Audit information is available from TÜV Rheinland, with a stated report period from February 19, 2025 to February 18, 2026, but the evaluation result is recorded as 0 without interpretation.
Supplier typeThe supplier is a limited company based in Zhejiang, China, and is classified as both a trading company and manufacturer/factory. Its primary and offered product is seals, while the general trade-volume range is unknown.
After-Sales capabilityThe supplier reports no overseas warehouse, overseas showroom, overseas agents or branches, and offers services in zero countries. These stated limitations indicate weak documented overseas service infrastructure.
R&D capabilityThe supplier does not provide 3D software design services, has no available SDK, and reported no new products during the past year. Although it offers ODM services, the explicit evidence shows limited documented technical and recent product-development capability.
Customization capabilityThe supplier explicitly supports customization from samples, designs, minor customization, flexible customization, and full customization. It also provides ODM and OEM services, including OEM service for well-known brands, demonstrating broad documented customization capability.
Product Q&A
Q:Are you a trading company or manufacturer?
A:
We are a manufacturer based in Hangzhou, China, established in 2010.
Q:How do you guarantee quality?
A:
We always produce a pre-production sample before mass production and conduct a final inspection before shipment.
Q:What is your delivery time?
A:
Generally 5-10 days if goods are in stock, or 15-20 days if not in stock, depending on quantity.
Q:Do you provide samples?
A:
Yes, we offer samples free of charge, but you need to pay the freight cost.
Q:What services can you provide?
A:
We accept delivery terms like FOB, CFR, CIF, EXW, and payment types including T/T, L/C, PayPal, and Western Union.
Send Inquiry
*To:Hangzhou Bestseal International Trade Co., Ltd.
Hangzhou Bestseal International Trade Co., Ltd.*Content:
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