What's your payment terms?

We accept T/T, Paypal, Western Union when qualified goods are ready for ship. Also pay to via Credit Card is welcomed. For amount less than 1000USD, 100% in advance. For amount more than 1000USD, 50% in advance, balance payment before shipment.

Can you make customized products if I cannot find our products in your catalog?

Yes, Customized products is available. OEM is welcomed.

I don't have drawing or picture available for custom products, could you design it?

Yes, we can make the best suitable design in accordance with your application.

Water Pump Seal Sello Mechanical for John Crane Pump Type 21

Name: Water Pump Seal Sello Mechanical for John Crane Pump Type 21
Brand: Hangzhou Sealcon Fluid Machinery Co., Ltd.
SKU: 2068643385

Zhejiang, ChinaHangzhou Sealcon Fluid Machinery Co., Ltd.

US$15.00

1-99 Pieces

US$12.00

100-999 Pieces

US$8.00

1,000+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Structure

Single End

Pressure

Medium Pressure Mechanical Seals

Model NO.

R18/John Crane 21

Speed

General Speed Mechanical Seal

Temperature

Poor Temperature Mechanical Seal

Performance

High Pressure

Standard

Type

Jc21

Balance

Unbalanced

Custom

Place of Origin

Zhejiang, China

Face

Carbon, Sic, Tc

Metal Part

SS316, Hastelloy C

Feature

Durable

Seat

Ceramic, Sic, Tc

Brand Name

Sealcon

Model Number

R18

Spring

SS304, SS316, Hastelloy C

Size

1/2" to 3"

Transport Package

Individual Package

Specification

OEM

Trademark

SEALCON

Origin

China

HS Code

8484200090

Production Capacity

50000

Key features

Wide Compatibility: Replaces John Crane type 21 mechanical seal for various pump models.

Customization Available: Accepts customized products and OEM based on drawings or pump models.

Durable Material Options: Features Carbon, SiC, TC faces and SS316, Hastelloy C metal parts.

High Performance: Handles up to 8bar pressure and 10m/s speed with -20 to 150C temperature.

Factory Direct Pricing: Direct factory sales ensure high quality and competitive pricing.

Fast Delivery: Stock items ship immediately; mass production takes 14-25 days.

Sample Policy: Sample cost is refundable after placing a formal order.

Company profile

Hangzhou Sealcon Fluid Machinery Co., Ltd.

Zhejiang, China

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 factory?

We are a factory, so we can offer you Factory Price with High Quality.

Q:Where is your factory located?

Our factory is located in Jiande, Hangzhou which is close to Shanghai and Ningbo Port.

Q:How long is your delivery?

For stock items, we can ship them immediately after receiving payment. For other items, we will need 14-25 days for mass production depends on the quantity and types of the order.

Q:Do you provide free samples?

Usually we do not provide free samples. There is a sample cost which can be refund after you place order.

Q:What do you usually shipped through?

Air freight, Sea freight, express is the widely used shipment due to small weight and size for Mechanical seal.