What are the key features of flexible graphite rings?

Key features include high-temperature resistance, high-pressure resistance, chemical stability against acids and alkalis, and flexible sealing that adapts to equipment deformations and vibrations.

What is the material composition of the graphite rings?

The rings are made from high-purity flexible graphite tapes or braided flexible graphite fillers, featuring compact crystalline graphite morphology and industrial grade quality.

High Temperature and High Pressure Resistance Self-Sealing Ring Gasket Expandable Graphite Packing Ring for Valve Pump

Name: High Temperature and High Pressure Resistance Self-Sealing Ring Gasket Expandable Graphite Packing Ring for Valve Pump
Brand: Qingdao TTWY International Trade Co., Ltd.
SKU: 2040172122

Shandong, ChinaQingdao TTWY International Trade Co., Ltd.

US$0.30-60.00

500 Pieces

Sample price:US$35.00/piece.Request sample

Product profile

Customization

Available

Application

Chemical Industry, Electroplating Industry, Metallurgical Industry, Papermaking Industry, Petrochemical Industry

Carbon Content

High-Carbon

Shape

O-Ring

Function

O-Ring Mechanical Seals

Bulk Density

1.60--2.10g/cm3

Compressive Strength

70-160MPa

Flexural Strength

25-70MPa

Thickness

8-12

Work Temperature

200-850℃

Grade

Industrial Grade

Forming Way

Extruded Graphite

Crystal Morphology

Compact Crystalline Graphite

Type

Graphite Seal Graphite Ring Graphite Gasket

Composition

Graphite

Transport Package

Wooden Packing

Specification

Customized

Trademark

TTWY

Origin

China

HS Code

3801900000

Production Capacity

20000 Piece/Pieces Per Month

Key features

High Temperature Resistance: Operates effectively in extreme conditions from below several hundred to several hundred degrees Celsius.

High Pressure Resistance: Withstands tens to hundreds of megapascals of pressure without compromising sealing performance.

Chemical Stability: Resists corrosion from acids, alkalis, and solvents, suitable for harsh industrial environments.

Flexible Sealing: Adapts to minor deformations and vibrations to ensure reliable sealing in various equipment.

Customization Available: Accepts OEM and custom orders based on samples or drawings for specific shape and function needs.

Wide Industry Application: Used in chemical, oil & gas, energy, pharmaceutical, aerospace, and automotive manufacturing.

Strict Quality Control: 100% inspection for crack, roundness, hardness, and geometry; meets ISO international standards.

Fast Delivery Options: 5-10 days for stock items; 15-20 days for non-stock items depending on quantity.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceIn-stock CapacityR&D Capabilities

Qingdao TTWY International Trade Co., Ltd.

Shandong, China

Business Type: Manufacturer/FactoryExport Year: 2011-11-01Nearest Port: QINGDAO, DALIAN, TIANJINAverage Response Time: ≤6.16hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, DAP, CIP, FCA

AI-Powered supplier vetting

SummaryThe supplier is a limited company offering casting products and graphite products, with stated annual graphite production of 16,000 tons. It identifies as a professional technical supplier, provides 3D software design and multiple customization options, and reports one R&D engineer plus SDK availability. Export activity is established, with 51%–70% of sales from exports and 11 years of exporting experience, but no overseas showrooms, agents, branches, or offline trade-show participation. Quality-related procedures exist for corrective/preventive actions and customer complaints, although written records are absent; quality assurance status and raw-material traceability are unknown. The supplier reports 21–30 quality-control staff, a one-month off-peak lead time, broad export markets, and port access through Qingdao, Dalian, and Tianjin. Evidence for certifications, customer cases, and financial strength is insufficient.

Supplier typeThe supplier is explicitly described as a professional technical supplier and a limited company. Its stated product scope includes casting products, while graphite products are identified in its production information; it is not part of a larger company group.

After-Sales capabilityThe supplier has procedures for corrective and preventive actions and customer complaints, but no written records are available. It also reports no overseas showroom, agent, branch, or overseas service country, indicating limited documented after-sales infrastructure.

R&D capabilityThe supplier reports one R&D engineer, SDK availability, professional technical-supplier status, and 3D software design capability. However, it launched no new products in the past year, so the evidence supports technical capability but not strong recent product innovation.

Production capacityThe supplier reports graphite production of 16,000 tons annually, 21–30 quality-control staff, broad export-market coverage, and a one-month off-peak lead time. These stated production and operational figures provide explicit evidence of production capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, together with 3D software design services. This directly supports a broad customization capability.

Product Q&A

Q:How do you control the quality?

All bearing parts before production and the production process undergo strict 100% inspection, including crack detection, roundness, hardness, roughness, and geometry size. All bearings meet ISO international standards.

Q:How do you guarantee the quality of the products?

Each step of production and finished products will be carried out inspection by QC department before storing in the warehouse. NG goods are not allowed in the completed goods warehouse.

Q:How long is your delivery time?

If the goods are in stock, usually 5 to 10 days. If the goods are no stock for 15 to 20 days, according to the quantity to determine the time.

Q:Do you accept OEM and custom orders?

Yes, accept OEM, can also be customized according to samples or drawings for you.

Q:What are the main applications of flexible graphite rings?

Flexible graphite rings are widely used in the Chemical Industry, Oil and Gas Industry, Energy Sector, Pharmaceutical and Food Processing, and Aerospace and Automotive Manufacturing for sealing various equipment and pipelines.