What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What is the size range of the gaskets?

The available sizes range from 16mm to 3000mm, with thickness options including 3.2mm, 4.5mm, 4.8mm, 5.5mm, and 7.5mm.

What are the main application scenarios?

The gaskets are designed for flanges, shaft seals, and heat exchangers, suitable for raised face, flat face, and tongue and groove configurations.

Donhonsil Premium Spiral Gasket for Long-Lasting Sealing Solutions

Name: Donhonsil Premium Spiral Gasket for Long-Lasting Sealing Solutions
Brand: Ningbo Dongheng Sealing Co., Ltd.
SKU: 2082515332

Zhejiang, ChinaNingbo Dongheng Sealing Co., Ltd.

US$0.10

1 Piece

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

Transport Package

Wooden Carton

Specification

DN15 ~ DN10000

Trademark

XINSEN/DONHONSIL

Origin

China

HS Code

8484100000

Production Capacity

50000000PCS/Year

Key features

Advanced Spiral Design: Solid outer/inner rings with expertly inserted inner ring for precise centering and implosion prevention.

Corrosion Resistant: Crafted from high-quality carbon steel and specialty alloys for severe conditions and high temperatures.

Robust Safety Features: External ring acts as a fail-safe compression stop to prevent blowout and erosion.

Versatile Compatibility: Excels in raised and flat faced flanges, male/female, and heat exchanger applications.

Wide Size Range: Available in sizes 16-3000mm with various thickness options from 3.2mm to 7.5mm.

Multiple Material Options: Supports 304, 316L, Alloy825, Monel400, Inconel625, and various fillers like Graphite/PTFE.

Customization Available: Offers full, minor, and flexible customization from samples or designs.

CE Certified Quality: Product meets CE certification standards with rigorous QA/QC inspection processes.

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 materials are used for the spiral wound gasket?

The gasket is crafted primarily from corrosion-resistant carbon steel and specialty alloys like 304, 316L, Alloy825, Monel400, and Inconel625. Fillers include Graphite, PTFE, and Non-asbestos options.

Q:What is the minimum order quantity?

The Minimum Order Quantity (MOQ) is 2 units.

Q:What are the lead times for production?

The average lead time is one month during peak season and within 15 workdays during the off-season.

Q:Can the product be customized?

Yes, we offer full customization, minor customization, and flexible customization from samples or designs.

Q:What certifications does the product have?

The product holds CE certification.