What are the tolerance standards for the gaskets?

Thickness tolerance is (+0.8mm, -0.0mm). For NPS 1/2 to 24, outside and inside diameter tolerances are (+1.5mm, -0.0mm).

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 one month during peak season and within 15 workdays off season.

Reliable Double Jacket Gasket with Mica Filler for Maximum Strength

Name: Reliable Double Jacket Gasket with Mica Filler for Maximum Strength
Brand: Ningbo Dongheng Sealing Co., Ltd.
SKU: 2083594902

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 for reliable performance in harsh environments.

Wide Material Selection: Jackets available in SS316, SS304, Copper, etc.; Fillers include Graphite, PTFE, and Non-Asbestos.

Customizable Dimensions: Thickness 1.6mm-10mm and Size 1mm-2500mm. Customization from samples, designs, or full custom.

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

Precision Tolerances: Thickness tolerance (+0.8mm, -0.0mm); Diameter tolerance (+1.5mm, -0.0mm) for NPS 1/2 to 24.

OEM/ODM Support: Manufacturer offers OEM and ODM services with 1 R&D engineer and flexible customization options.

CE Certified Quality: Products meet CE certification standards with strict QA/QC inspection by 2 dedicated inspectors.

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 jacket and filler?

Jackets are made from soft iron, low carbon steel, stainless steel (SS316/SS304), nickel, copper, aluminium, brass, titanium, and monel. Fillers include expanded graphite, ceramic, PTFE, and non-asbestos materials.

Q:What is the maximum working pressure for these gaskets?

These versatile gaskets can withstand maximum working pressures of 6-10Mpa, ensuring reliability across various applications.

Q:What are the available size and thickness ranges?

Thickness ranges from 1.6mm to 10mm, and sizes range from 1mm to 2500mm. Width is typically 10-25mm and thickness 2mm-8mm for standard designs.

Q:Can the gaskets be customized?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization. OEM and ODM services are available.

Q:What are the typical applications for double jacketed gaskets?

They are ideally suited for heat exchanger applications, gas mains, boilers, pumps, and valve bonnets, particularly in corrosive and high-temperature environments.