What is the operating pressure range?

The operating pressure range is from vacuum to 35 bar (508 PSI).

What materials are used for the seal face and seat?

The seal face is made of Carbon graphite resin impregnated, and the seat is made of Silicon carbide.

What is the lead time for orders?

Standard products are delivered within one week. Peak season lead time is one month, and off-season lead time is within 15 workdays.

18 LB500 Mechanical Seals for Pumps Pusher Seals

Name: 18 LB500 Mechanical Seals for Pumps Pusher Seals
Brand: Ningbo Tiansun International Trade Co., Ltd.
SKU: 2060442515

Zhejiang, ChinaNingbo Tiansun International Trade Co., Ltd.

US$20.00-50.00

5 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Structure

Single End

Pressure

High Pressure Mechanical Seals

Model NO.

18 LB500

Speed

Ultra-High-Speed Mechanical Seal

Temperature

High Temperature Mechanical Seal

Performance

Corrosion

Standard

Type

Customization

Balance

Balanced

Payment Method

T/T, Western Union, L/C etc

Replace

Bergman Seals

Export Port

Ningbo Port, Shanghai Port

Products Packaging

White Box

Min Order Qty

5 Pcs

Transport Package

Carton Packing

Specification

Diameter Size 25-110mm

Trademark

Customer Provide

Origin

Made in China

HS Code

8484200090

Production Capacity

1000000 PCS/Year

Key features

Corrosion Resistant: Constructed with Silicon Carbide seat and Carbon graphite faces for durability.

Versatile Application: Suitable for chemical, process industries, acids, alkalis, and seawater.

Fast Delivery: Standard products delivered within one week due to large stock availability.

Customization Available: Type is customizable to meet specific pump requirements and configurations.

Quality Assurance: Factory direct with compensation guarantee for quality or transport damage.

Free Sample Offer: Free samples provided for quality testing; buyer pays international freight.

Company profile

Ningbo Tiansun International Trade Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2009-07-01Nearest Port: Ningbo PortAverage Response Time: ≤5.84hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA

AI-Powered supplier vetting

SummaryNingbo Tiansun International Trade Co., Ltd. is identified as a China-based manufacturer/factory in Zhejiang with stated experience serving chemical, petrochemical, agrochemical, fertilizer, pharmaceutical, and related industries. The supplier reports more than 10 production lines, 11–20 quality-control staff, 6–10 years of R&D engineer experience, and significant stated output for mechanical and pump seals. It has exported since 2009 and reports that 71%–90% of sales are exports. Evidence also indicates free samples, customer order filing, stocked frequently ordered products, and third-party mechanical-seal repair and maintenance services. Management-system certifications are listed, including ISO 9001, ISO 14001, QHSE, and BSCI, but the provided information does not establish certificate validity, scope, or issuing bodies. Customer-specific cases and independently verified financial strength are not sufficiently documented.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and identifies mechanical seals, pump seals, seal rings, and OEM mechanical seals among its products. Its stated industry coverage includes chemical, petrochemical, agrochemical, fertilizer, pharmaceutical, and other industrial sectors, while export activity has reportedly continued since 2009.

After-Sales capabilityThe supplier states that it undertakes third-party mechanical-seal repair and maintenance contracts and keeps stock of frequently ordered products for expedited orders. It also provides free samples before orders and files customer orders for future reference, supporting service responsiveness, although no service coverage, response-time commitment, or repair performance data is provided.

Production capacityThe supplier reports more than 10 production lines, 11–20 quality-control staff, and stated annual output of 100,000 boxes of mechanical and pump seals plus 100,000,000 pieces of SIC, TC, and carbon rings. These figures directly support substantial production and quality-control capacity, although utilization, equipment details, and independent verification are not provided.

Customization capabilityThe supplier offers OEM mechanical seals, provides samples before ordering when requested, records customer requirements and preferences, and undertakes third-party repair and maintenance contracts. These points indicate the ability to address customer-specific requirements, but the slices do not define customization limits, engineering procedures, tooling capability, or minimum order conditions.

Product Q&A

Q:What are the prices of your products?

For each model, the unit price is listed on the website, but what is displayed on the website is only the average market price. For specific models, you can contact us for further consultation and negotiation.

Q:Are you a factory or a trade company?

We are a factory with top sales for the trade service.

Q:What is the minimum order quantity for each order?

For products of regular models, the minimum order quantity is at least five. We welcome you to test the quality of our products and services through placing trial orders. Looking forward to the long-term cooperation with you.

Q:What is your company's service tenet?

Quality first, service upmost. We promises that if there is any problem with the quality of the product, or if the product is damaged during the transportation, our company will be responsible for compensation, regardless of the ordder turnover value.

Q:Can I try to get a SAMPLE before the order?

Sure. Our company will provide you with samples for free, but you will have to pay for the international delivery (freight collect payment).