What is the lead time for orders?

Lead time is one month during off-peak season and 6-12 months during peak season.

Which flange types are compatible with these gaskets?

They are suitable for tongue and groove, male and female, flat face, and raised face flange assemblies.

What payment terms do you accept?

We accept LC, T/T, and PayPal as terms of payment.

Premium 316L Graphite Spiral Gaskets for Industrial Flange Use

Name: Premium 316L Graphite Spiral Gaskets for Industrial Flange Use
Brand: Ningbo Sunwell Sealing Materials Co., Ltd.
SKU: 792192275

Zhejiang, ChinaNingbo Sunwell Sealing Materials Co., Ltd.

US$0.10

2 Pieces

Product profile

Customization

Available

Material

316L,Graphite

Application

Electric

Model NO.

SUNWELL-SW600

Type

Shaft Seal

Performance

High Pressure

Shape

O-Ring

Standard

Standard, Nonstandard

Product Name

Spiral Wound Gasket

Color of Gaskets

According The ASME Standard

Certificate

Dnv ISO9001,SGS

Quality

High Level of Spiral Wound Gasket

Transport Package

Wooden Case for Spiral Wound Gaskets

Specification

according your request

Trademark

SUNWELL

Origin

Ningbo, China

Production Capacity

150000PCS/Month

Key features

Wide Type Range: Manufactures SW600-R, IR, CG, and CGI types for various flange assemblies.

High Production Capacity: Monthly output reaches 150,000 pieces to meet large volume demands.

Diverse Material Options: 316L stainless steel and graphite combinations for all operating conditions.

ASME Standard Compliance: Colors and specifications follow ASME standards for consistent quality.

High Pressure Performance: Designed for Class 900 and above, suitable for corrosive or toxic media.

Global Certification: Certified by DNV, ISO9001, and SGS for high-level quality assurance.

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

Erosion Protection Design: Inner ring types prevent solid accumulation and minimize fluid erosion.

Company profile

Ningbo Sunwell Sealing Materials Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2011-01-01Nearest Port: Shanghai, NingboAverage Response Time: ≤24hTerms of Payment: LC, T/T, PayPalInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, Others

AI-Powered supplier vetting

SummaryNingbo Sunwell Sealing Materials Co., Ltd. is identified primarily as a China-based manufacturer of sealing and heat-preservation products, although one record classifies it as a trading company. The supplier reports ISO 9001 certification, more than 10 production lines, 15 million spiral wound gasket pieces and 12 million ring joint gasket pieces in annual output, and 6–10 R&D engineers and quality-control staff. It has reported export activity since 2011, self-operated import/export rights, and exports representing 51%–70% of total sales. The company states that it supports OEM and ODM orders and provides engineering assistance, but the supplied records do not independently verify these claims. Buyer and transaction evidence is limited, and the records provide insufficient information to assess financial strength or after-sales performance. No financial figures are included.

CertificationsThe supplier reports holding ISO 9001 certification. This is explicit evidence of a certified management system and supports a positive assessment for this field.

R&D capabilityThe supplier reports 6–10 R&D engineers and describes itself as engaged in research and development across multiple sealing-product categories. It also offers engineering assistance according to its company description, providing explicit but largely self-reported evidence of innovation capability.

Production capacityThe supplier reports more than 10 production lines and annual output of 15 million spiral wound gasket pieces and 12 million ring joint gasket pieces. It also identifies itself as a manufacturer and reports export operations since 2011, providing explicit evidence of substantial production capability.

Customization capabilityThe supplier explicitly states that it accepts OEM and ODM orders and can provide engineering assistance for customer applications. This directly supports the availability of customization services, although the records do not specify technical scope, tooling capability, or examples of completed customized projects.