What is the minimum order quantity?

The minimum order quantity is 2 units.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

ASME B16.20 for Flange Inner Ring SS304 Winding Spiral Wound Gasket

Name: ASME B16.20 for Flange Inner Ring SS304 Winding Spiral Wound Gasket
Brand: Ningbo Dongheng Sealing Co., Ltd.
SKU: 2114601715

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

Enhanced Inner Ring Design: Prevents gasket implosion, protects sealing element, and centers gasket on flange face.

Wide Material Selection: Inner ring available in 304, 316, Monel, Alloy20, and UNS S32750.

Versatile Filler Options: Offers Graphite, Mica, Ceramic, and PTFE fillers for various applications.

Comprehensive Size Range: Available in sizes from 16mm to 3000mm with multiple thickness options.

Multiple Flange Compatibility: Suitable for raised face, flat face, tongue and groove, and male/female flanges.

High Temperature Resistance: Outer ring can be made of alloys for severe medium and high temperature applications.

Full Customization Support: Supports customization from samples, designs, and full custom requirements.

OEM and ODM Services: Manufacturer offers both OEM and ODM services with own brand capability.

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: ≤9.84h

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.