OUHONG SEALING - Professional Valve Sealing Components Manufacturer

About OUHONG SEALING

OUHONG is a modern enterprise specializing in the production of high-precision valve components. With a comprehensive product line including seals, seats, and valve balls, we serve a wide range of industries requiring reliable performance under extreme pressure, temperature, and corrosive environments.

Our commitment to quality is reflected in our advanced production and testing equipment, scientific field management, and strict process control. Every product is manufactured to meet international standards and tailored to specific customer requirements.

R&D Excellence

OUHONG operates a fully equipped R&D center with professional teams in each factory. We collaborate with local universities to maintain cutting-edge innovation and testing capabilities.

Quality Assurance

Scientific site management and strict quality control ensure every component meets the highest standards. We are committed to ISO-level consistency and reliability.

Global Applications

Our products are widely used across oil & gas, petrochemical, power generation, and marine industries, providing sealing solutions in the most challenging environments.

Our Product Series

Engineered for performance, durability, and precision sealing

Routine Material Seals

Standard sealing components made from high-quality elastomers and thermoplastics for general industrial applications.

Materials: NBR, EPDM, Viton, PTFE
Standards: ISO, API, ASME
Temp Range: -30°C to +200°C

NORSOK M710 RGD Seals

Specialized seals compliant with NORSOK M-710 standard for sour gas environments in oil & gas.

Compliance: NORSOK M-710, ISO 23936-2
Resistance: H2S, CO2, high pressure
Testing: Full RGD qualification

Perfluoroelastomer (FFKM) Seals

Ultra-high-performance seals for extreme chemical and thermal resistance.

Temp Range: -20°C to +327°C
Chemical Resistance: Solvents, acids, bases
Applications: Semiconductor, aerospace, pharma

Delta-Ring & Plug-In Seat

Innovative seat design combining Delta-Ring sealing with plug-in structural support.

Design: Modular, replaceable
Pressure Rating: Up to 15,000 psi
Standards: API 6D, ISO 17292

Delta-Ring & Protective Ring

Enhanced sealing with protective ring to prevent extrusion in high-pressure systems.

Protection: Anti-extrusion, anti-blowout
Materials: PEEK, Radel, PTFE
Applications: Subsea, wellhead equipment

Top-Mounted Seat Structure

Designed for easy maintenance and optimal sealing force distribution in ball valves.

Installation: Top-entry, field serviceable
Sealing: Bi-directional
Standards: API 6D, MSS SP-146

PMSS Seat Structure

Precision Machined Sealing System for zero-leakage performance in critical applications.

Tolerance: ±0.01mm
Leak Rate: Class VI (ANSI FCI 70-2)
Applications: LNG, cryogenic, hydrogen

Precision Valve Balls

High-sphericity balls with super-finish surfaces for minimal friction and maximum sealing.

Materials: Stainless steel, chrome-plated, ceramic
Finish: Ra ≤ 0.05μm
Sphericity: ≤ 0.001mm

R&D Center & Certifications

Innovation and quality at the core of our manufacturing

Advanced R&D Capabilities

OUHONG has established professional testing centers in each factory, equipped with accurate measurement tools at every production stage. Our R&D team ensures continuous improvement and customization for client-specific challenges.

We actively collaborate with local universities to create joint experimental and R&D bases, enhancing our technical depth and innovation capacity.

In-house material testing lab
Full-scale prototype validation
Failure analysis and root cause investigation
Custom formulation development

Scientific Site Management, Strict Quality Control

Professional technical team with rich market experience to provide perfect sealing solutions.

Frequently Asked Questions

What materials do you offer for sealing components?

We offer a wide range of materials including NBR, EPDM, Viton, PTFE, PEEK, Radel, and Perfluoroelastomer (FFKM). We also provide NORSOK M710 compliant materials for sour service applications.

Can you customize seals for specific applications?

Yes, our R&D team works closely with clients to develop custom sealing solutions based on operating conditions, media, temperature, and pressure requirements. We offer full design, prototyping, and testing services.

Do you provide testing and certification?

Yes, we conduct comprehensive in-house testing and can provide material certifications, dimensional reports, and performance validation. For NORSOK applications, we offer full RGD qualification testing.

What industries do you serve?

Our products are used in oil & gas (onshore, offshore, subsea), petrochemical, power generation, marine, LNG, hydrogen, semiconductor, and pharmaceutical industries.

What is your production lead time?

Standard products: 2–4 weeks. Custom designs: 4–8 weeks depending on complexity. We offer expedited options for urgent requirements.

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Precision Sealing Components for Demanding Industries