How are the gaskets installed?

They are installed inside a ladder-type ring groove on the flange surface. When bolts are screwed down, axial compression creates plastic deformation to form an initial seal.

Rx Gasket

Name: R/Rx/Bx/IX/Ring Joint Gasket/Lens Gasket/Rx Gasket
Brand: Wenzhou Zhenghai Sealing Co., Ltd
SKU: 2115286285

Zhejiang, ChinaWenzhou Zhenghai Sealing Co., Ltd

US$1.00

10 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Metal Rubber

Application

Valve

Model NO.

R/RX/BX/IX

Type

Oil Seal

Performance

High Pressure

Shape

O-Ring

Standard

Transport Package

Wooden Cases

Specification

RX20

Trademark

ZEHA

Origin

Wenzhou, China

Production Capacity

10000pieces/Week

Key features

High Pressure Resistance: Designed for high pressure applications, with BX type supporting up to 20,000 psi.

Self-Tightening Design: Utilizes radial expansion under medium pressure for a secure, self-tightening seal.

Premium Material Quality: Manufactured from metal via forging, heat treatment, and precision machining.

Multiple Gasket Types: Available in RX, BX, SBX, R, and SRX types to suit various flange standards.

Pressure Equalization: BX/SBX types incorporate pressure passage holes for equalization on sealing faces.

Valve & Pipeline Application: Ideal for oil pipeline flanges and valve sealing systems requiring high integrity.

Durable Construction: Produces plastic deformation to form a ring seal belt, ensuring long-term reliability.

Company profile

Wenzhou Zhenghai Sealing Co., Ltd

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2023-10-06Nearest Port: ningboAverage Response Time: ≤0.29h

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.

Product Q&A

Q:What materials are used for these gaskets?

The gaskets are made of metal material, manufactured through forging, heat treatment, and machining into specific cross-section shapes.

Q:What is the maximum pressure rating for BX type gaskets?

The BX type metal ring gasket can be used at pressures up to 20,000 psi.

Q:How does the self-tightening mechanism work?

Under medium pressure, the ring gasket undergoes radial expansion, allowing the trapezoidal groove to post more tightly for a self-tightening effect.

Q:What is the difference between RX and BX gaskets?

RX gaskets are standard octagonal rings, while BX gaskets have a square cross-section that tapers at each corner and include pressure passage holes for equalization.

Q:What is the primary application for these gaskets?

They are primarily used as metal sealing gaskets for oil pipeline flanges and valves, specifically for RX/SRX and R series types.