What is the main advantage of flexible graphite composite pads?

They integrate the high strength of metal with the flexibility and elasticity of non-metal materials.

Are these gaskets suitable for applications requiring compressibility?

No, this group is for instances where compressibility is not required to compensate for flange surfaces.

Spiral Wound Gasket/Expanded Graphite Gasket

Name: Spiral Wound Gasket/Expanded Graphite Gasket
Brand: Wenzhou Zhenghai Sealing Co., Ltd
SKU: 2093229215

Zhejiang, ChinaWenzhou Zhenghai Sealing Co., Ltd

US$1.00

5 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Metal Rubber

Application

Valve

Model NO.

International standards or customer requirements

Type

Oil Seal

Performance

High Pressure

Shape

O-Ring

Standard

Transport Package

Wooden Cases

Specification

International standards or customer requirements

Trademark

ZEHA

Origin

Wenzhou, China

Production Capacity

10000pieces/Week

Key features

Unlimited Size and Shape: Solid flat gaskets can be cut to unlimited sizes and shapes from sheet metal.

High Strength and Flexibility: Expanded graphite gaskets integrate metal strength with non-metal flexibility and elasticity.

Excellent Corrosion Resistance: Materials include stainless steel, titanium, and Monel metal for superior corrosion resistance.

Temperature Stability: Designed to maintain performance under varying temperature conditions.

Low Preload Requirement: Requires low preload to achieve effective sealing performance.

Complex Shape Capability: Can be formed into complex shapes like water level gauge and engine cylinder gaskets.

Wide Application Range: Suitable for pipe flanges, pumps, valves, pressure vessels, and heat exchangers.

High Pressure Performance: Engineered to provide reliable seals in high-pressure environments.

Company profile

Wenzhou Zhenghai Sealing Co., Ltd

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2023-10-06Nearest Port: ningboAverage Response Time: ≤2.47h

AI-Powered supplier vetting

SummaryWenzhou Zhenghai Sealing Co., Ltd is identified as a China-based manufacturer/factory in Zhejiang, producing metallic ring gaskets, flange gaskets, spiral-wound gaskets, and related sealing products. The supplier reports CNC and inspection equipment, 10 production lines, and 6–10 quality-control staff. It states that products can be made to customer drawings and dimensions, with a maximum product size of 2,000 mm, and lists multiple management-system certifications, including ISO 9001 and API-related certifications. Export activity reportedly began in 2023, while export sales represent 1%–10% of total sales. Evidence is insufficient to assess after-sales capability, financial credibility, innovation capability, or customer cases.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory, while another record describes the company nature as a trade company. The formal supplier-type field and the company’s stated manufacturing address support manufacturer status, although the conflicting classification should be clarified.

CertificationsThe supplier states that it passed API 6A, API Q1, and ISO 9001:2008 certifications, and separately lists ISO 9000, ISO 9001, ISO 14001, ISO 14000, and ISO 50001 management-system certifications. These declarations provide explicit evidence of certification holding, although certificate validity and scope are not supplied.

Production capacityProduction capability is supported by 10 production lines, 6–10 quality-control staff, CNC and testing equipment, a stated maximum product size of 2,000 mm, and a broad range of gasket products and materials. The supplier also identifies specialized ring-joint and flange-gasket applications, indicating established product manufacturing scope.

Customization capabilityThe supplier explicitly states that it can manufacture according to customer-specific dimensions or drawings, with products up to 2,000 mm, and can supply products in approximately 30 material types. This directly supports customization in dimensions, drawings, and material selection.