What are the lead times for production?

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

What payment terms are accepted?

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

What are the common applications for double jacketed gaskets?

They are predominantly used in heat exchangers, gas mains, boilers, pumps, and valve bonnets.

Versatile Double Jacket Gasket with Reliable Graphite Filler for Tough Environments

Name: Versatile Double Jacket Gasket with Reliable Graphite Filler for Tough Environments
Brand: Ningbo Dongheng Sealing Co., Ltd.
SKU: 2083632282

Zhejiang, ChinaNingbo Dongheng Sealing Co., Ltd.

US$0.10

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Metal+Non-Metal

Application

Valve, Flange, Pump

Model NO.

DOUBLE JACKET

Type

Stationary Seal

Performance

Wear

Shape

O-Ring

Standard

Standard, Nonstandard

Jacket Material

SS316, SS304, Soft Iron, Carbon Steel, Copper

Filler

Graphite, Cnaf, Non-Asbestos, PTFE

RF or FF

Both Ok

Gasket Standard

ASME B16.20, En1514-2 or Others

Thickness

1.6mm ~ 10mm

Size

1mm ~ 2500mm

Transport Package

Wooden Carton

Specification

DN10 ~ DN2000

Trademark

OEM

Origin

China

HS Code

8484100000

Production Capacity

10000000 Per Year

Key features

Double Jacket Design: Two-piece metal jacket fully encapsulates OD, ID, and sealing surfaces for superior protection.

High Pressure Resistance: Withstands maximum working pressures of 6-10Mpa in corrosive and high temperature environments.

Wide Customization: Available in various shapes, sizes (1mm-2500mm), and materials including SS316, Graphite, and PTFE.

Versatile Applications: Ideal for heat exchangers, gas mains, boilers, pumps, and valve bonnets in critical systems.

Precision Tolerances: Thickness tolerance of +0.8mm/-0.0mm ensures exacting standards for optimal sealing performance.

Robust Material Selection: Jackets made from stainless steel, copper, titanium, etc., with fillers like graphite and ceramic.

OEM/ODM Support: Full customization from samples or designs available with dedicated R&D engineers.

CE Certified Quality: Manufactured with strict QA/QC inspection and traceable raw materials for reliability.

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.