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John Crane Type 21 Single Spring Mechanical Seal for Pump
US$0.50-20.00
1 Set
Product profile
Customization
AvailablePressure
High Pressure Mechanical SealsSpeed
High-Speed Mechanical SealModel NO.
R18 type 21 mechanical sealTemperature
High Temperature Mechanical SealPerformance
High PressureStandard
StandardFace
Carbon, Sic, TcSeat
Ceramic, Sic, TcBellow
NBR, EPDM, Viton etc.Spring
SS304, SS316Transport Package
CarbonTrademark
SealconOrigin
ChinaKey features
Wide Customization Options: Customizable faces, seats, bellows, and springs based on client drawings or samples.
High Pressure Capability: Designed to withstand pressures up to 8 bar for demanding applications.
Fast Delivery for Stock: Immediate shipping available for stock items upon receipt of payment.
OEM and ODM Services: Full customization services including design support without drawings.
Competitive Factory Pricing: Direct factory pricing with high quality assurance and fast delivery.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤6.53h
AI-Powered supplier vetting
SummaryThe supplier produces mechanical seals and related fluid, electromechanical, transmission, rubber, and ceramic products, while also operating import and export business. It reports compliance with DIN24960, ISO3069, EN12756, and API682 standards, but no supplier-management-system certification is stated. The supplier offers broad customization, ODM, and OEM services, and reported new products during the past year. Production evidence includes one production line, machining equipment, 100% finished-product inspection, and stated inventory capability. However, raw-material traceability is absent, no valid manufacturing contract with affiliated subcontractors is recorded, and service-management procedures, complaint-handling procedures, and corrective/preventive-action records are unavailable. Overseas service infrastructure is limited, with no agents, branches, warehouse, or showroom reported. Customer reach is indicated by markets in Europe, the USA, Southeast Asia, and the Middle East, plus participation...
Supplier typeThe supplier’s stated business scope covers production of mechanical seals and sales of related fluid, electromechanical, transmission, rubber, and ceramic products, together with import and export operations. This supports classification as a manufacturer and trading/export supplier rather than a pure distributor.
After-Sales capabilityThe supplier reports no written procedures or records for customer complaints, corrective and preventive actions, or effective service-capability assessment. It also has no overseas agents or branches, overseas warehouse, or showroom, although it offers inventory capability and accepts multiple quotation and payment terms.
R&D capabilityThe supplier reports new products during the past year, provides ODM services, and has two R&D engineers with stated total R&D experience. It also reports OEM capability for popular brands, but no SDK is available; overall, the evidence supports active product development and design capability.
Production capacityProduction evidence includes one production line, listed sawing, CNC turning, wire-cutting, milling, and grinding equipment, 100% finished-product inspection, inventory capability, and a stated peak-season fulfillment time of one month. Countervailing limitations include no valid manufacturing contract with affiliated subcontractors and no raw-material traceability.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM services, indicating broad support for customer-specific product development.
Product Q&A
Q:Are you a trading company or a factory?
A:
We are a factory.
Q:Where is your factory located?
A:
Our factory is located in Jiande, Hangzhou.
Q:How long is your delivery time?
A:
For stock items, we can ship them immediately after receiving payment. For other items, we need 20 days for mass production.
Q:Do you provide free samples?
A:
Usually we do not provide free samples. There is a sample cost which can be refunded after you place an order.
Q:What shipping methods do you usually use?
A:
Air freight, sea freight, and express are the most common ways due to the small weight and size of precise products.
Send Inquiry
*To:Hangzhou Sealcon Fluid Machinery Co., Ltd.
Hangzhou Sealcon Fluid Machinery Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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