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Ring Joint Gasket (RTJ) ASME B16.20 in Pipe Flange
US$1.00-999.00
1 Piece
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableStyle
Mechanical SealFunction
Fixed Sealing, Hole SealingModel NO.
R/RX/BX/IXApplication
Equipment Seal, Flange Seal, Pump SealShape (For Gasket)
Ring GasketMaterial
MetalStandard
StandardTransport Package
Box and Wood PackageSpecification
API6ATrademark
ZHMFOrigin
Zhegjiang, ChinaHS Code
7318220001Production Capacity
100000PCS/WeekKey features
High Temperature & Pressure: Precision machined metallic rings designed for extreme high temperature and high pressure applications.
Pressure Energized Seal: Style RX and BX designs utilize pressure energization to improve seal efficiency as system pressure increases.
Subsea Application Ready: Style SRX and SBX feature special vent holes specifically designed for underwater and subsea use.
Multiple Configurations: Available in Oval and Octagonal profiles, with interchangeable Style R and RX options.
Pressure Balance Technology: Style BX gaskets incorporate pressure balance holes to equalize trapped pressure in grooves.
Efficient Sealing Mechanism: Softer gasket metal flows into flange microstructure under bolt force for a tight, efficient seal.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2023-10-06Nearest Port: ningboAverage Response Time: ≤0.05h
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:Are the gaskets suitable for subsea applications?
A:
Yes, Style SRX and SBX gaskets are designed with special vent holes specifically for underwater and subsea use.
Q:What is the difference between Style R and Style RX?
A:
Style RX is a pressure energized adaptation of Style R, designed to fit the same groove but improve seal efficiency as pressure increases.
Q:What are the available configurations for these gaskets?
A:
They are available in both oval and octagonal configurations, including interchangeable Style R and RX types.
Q:What is the maximum pressure rating for Style BX gaskets?
A:
Style BX gaskets are designed for use up to 20,000 psi.
Q:How do Style BX gaskets handle trapped pressure?
A:
All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure trapped in the grooves.
Send Inquiry
*To:
Wenzhou Zhenghai Sealing Co., Ltd
Wenzhou Zhenghai Sealing Co., Ltd*Content:
Supplier replies will be sent to your registered email
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