Can I customize the gasket dimensions and materials?

Yes, we offer OEM and ODM services with customization options including full customization, minor customization, and flexible customization from samples or designs.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 2 units.

What are the payment terms and lead times?

Payment terms include LC, T/T, D/P, PayPal, Western Union, and small-amount payment. Lead time is within 15 workdays during off-season and one month during peak season.

Wound Gasket Featuring 316 Inner Ring and Mica Sealing Solution

Name: Wound Gasket Featuring 316 Inner Ring and Mica Sealing Solution
Brand: Ningbo Dongheng Sealing Co., Ltd.
SKU: 2084575742

Zhejiang, ChinaNingbo Dongheng Sealing Co., Ltd.

US$0.10-0.20

1 Piece

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Metal+Non-Metal

Application

Flanges

Model NO.

XINSEN-SD

Type

Shaft Seal

Performance

Wear

Shape

O-Ring

Standard

Standard, Nonstandard

Inner Ring

304,316,Monel,Alloy20, Uns S32750

Hoope

304,316,321,317,Monel, 32750, Inconel

Filler

Graphite, Mica, Ceramic

Outer Ring

304, 316, 321, Monel, Inconel

Transport Package

Wooden Carton

Specification

DN15 ~ DN10000

Trademark

XINSEN/DONHONSIL

Origin

China

HS Code

8484100000

Production Capacity

50000000PCS/Year

Key features

Advanced Inner Ring Design: Prevents pipe implosion, protects sealing element from extreme temps, and reduces failure risk.

High Durability Materials: Outer ring made of carbon steel or specialized alloys to withstand corrosion and high temperatures.

Versatile Flange Compatibility: Perfectly suited for both raised and flat-faced flanges, including tongue and groove styles.

Standard Compliance: Adheres to DIN 2699 (German) and ASME B16.20 standards for inner ring necessity.

Customization Options: Available in multiple inner/outer ring materials like 304, 316, Monel, and Inconel.

Radial Strength & Safety: External ring provides radial strength, preventing blowout and serving as a compression stop.

Wide Size Range: Sizes available from 16mm to 3000mm with various thickness options.

OEM/ODM Service: Supports full customization from samples, designs, and minor adjustments.

Company profile

Fast DeliveryOEM ServicesQuality AssuranceQA/QC Inspectors

Ningbo Dongheng Sealing 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: 4 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier manufactures industrial sealing products, including spiral wound gaskets, PTFE tape, and PTFE gaskets, from a 4,500 m² facility with three production lines. It offers extensive customization, 3D design, ODM, and OEM services, and reports new products within the past year. Quality-related evidence includes CE certification, ISO 9001:2015 certification, quality assurance, and documented corrective and preventive action procedures. However, complaint handling lacks written records, supplier approval documentation is incomplete, and the factory does not continuously reconcile production quantities or maintain standard outsourcing procedures. The supplier has inventory capability and valid contracts with affiliated subcontractors, but no overseas warehouse, showroom, agents, branches, or overseas service locations. Export activity is reported, with 31%–40% of sales from exports and four years of export experience. Customer evidence includes a 50%–80% repeat-buyer preference, but no Fortune 500...

Supplier typeThe supplier is a manufacturing-oriented industrial equipment and components provider producing spiral wound gaskets, PTFE tape, and PTFE gaskets. It has a 4,500 m² manufacturing plant, three production lines, inventory capability, and valid contracts with affiliated subcontractors, while lacking overseas warehouses, showrooms, agents, and branches.

CertificationsThe supplier reports CE product compliance certification and an ISO 9001:2015 management-system certificate. It also states that quality assurance is present in its quality-control processes, providing explicit certification and quality-system evidence.

R&D capabilityThe supplier provides 3D software design, ODM, and OEM services and reports new products within the past year. It has one R&D engineer and no available SDK, indicating some development capability but limited evidence of broader technical resources.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, flexible customization, and 3D software design services. This establishes broad customization coverage across both design-based and sample-based requirements.

Product Q&A

Q:What is the function of the inner ring in this spiral wound gasket?

The inner ring prevents implosion into the pipe during installation, protects the sealing element from extreme temperatures and mediums, fills the void between flanges to prevent erosion, and reduces the risk of failure.

Q:Which standards does this gasket comply with?

The inner ring is crafted to match the winding alloy and adheres to the DIN 2699 standard (German). It also follows ASME B16.20 standards, which mandate inner rings for PTFE filler gaskets and recommend them for graphite filler gaskets.

Q:What materials are available for the inner and outer rings?

Inner rings can be made from 304, 316, Monel, Alloy20, or Uns S32750. Outer rings are commonly carbon steel (painted or zinc plated) but can also be crafted from specialized alloys like 304, 316, 321, Monel, or Inconel to withstand higher temperatures.

Q:Is this gasket suitable for all types of flanges?

Yes, the superior gasket profile is versatile and perfectly suited for both raised and flat-faced flanges, as well as tongue and groove styles.

Q:What are the available filler materials?

The gasket can be filled with Graphite, Mica, Ceramic, Asbestos, PTFE, or Non-asbestos materials depending on the application requirements.