Oil & Gas

Oil & Gas Sealing Solutions

High-Performance Seals for Extreme Oil & Gas Environments

At Ashton Seals, we provide high-performance sealing solutions for the oil and gas industry, specifically engineered to operate in high-pressure, high-temperature, and chemically aggressive environments. Supporting applications from upstream exploration through to downstream processing, our seals ensure reliable performance, operational safety, and long-term durability in critical systems where failure is not an option.

With extensive industry experience, we supply solutions for a wide range of conditions from cryogenic systems to demanding NORSOK M-710 downhole environments demonstrating the versatility and resilience of our products. We offer both standard catalogue seals from our extensive stock range and fully bespoke sealing solutions, designed to meet the challenges of extreme and specialised applications.

Sealing Solutions Across the Oil & Gas Sector

We provide sealing solutions for all stages of oil and gas operations:
Upstream (Exploration & Production)
Drilling and wellhead equipment
Subsea and downhole systems
High-pressure valves and connectors
Midstream (Transport & Storage)
Pipelines and pumping stations
Compression systems
Storage facilities
Downstream (Refining & Processing)
Refineries and petrochemical plants
Processing equipment and vessels
Heat exchangers and pressure systems
These applications require high-integrity sealing solutions capable of maintaining performance under extreme pressure, temperature and chemical exposure.

Extreme Conditions & Performance Requirements

Oil & gas environments are among the most demanding in any industry:
High pressure (often exceeding hundreds of bar)
Extreme temperatures (from cryogenic to +200°C+)
Exposure to aggressive chemicals, hydrocarbons, and gases
Risk of rapid gas decompression (RGD) in sealing materials
Effective sealing solutions help:
Prevent leaks and environmental hazards
Maintain system pressure and integrity
Protect equipment from failure
Ensure operational safety and compliance

Industry Standards & Certifications

Sealing solutions in oil & gas must meet strict international standards:
Key Oil & Gas Certifications
NORSOK M-710 – Qualification of non-metallic sealing materials for oil & gas applications
API (American Petroleum Institute) standards – e.g. API 6A, API 6D for pressure systems
ISO 23936 / ISO 3601 – Material compatibility and O-ring standards
RGD resistant
High Temp steam resistant
High pressure resistant
Sour Gas (H2S) & Hydrocarbon compatible β€‹

Additional Requirements
ISO 9001:2015 – Quality management systems
ISO 4406 – Hydraulic fluid contamination control (critical for seal life)
ATEX compliance (where applicable) for explosive environments
These standards ensure sealing components are safe, reliable, and suitable for critical oil & gas operations.​

Products for Oil & Gas Applications

We supply a comprehensive range of sealing products for oil and gas environments including:
O-rings and elastomer seals (including RGD-resistant materials)
Metallic and semi-metallic gaskets
Hydraulic and high-pressure seals
PTFE and engineered sealing solutions
Custom gaskets and sealing systems
Materials such as PTFE are widely used due to their chemical resistance, low friction, and wide temperature range​ 

Materials & Performance

Oil & gas sealing solutions must be carefully selected for compatibility and durability.

We offer materials that provide:
Resistance to hydrocarbons, chemicals, and sour gas
Stability under high pressure and temperature extremes
Protection against rapid gas decompression (RGD)
Long-term reliability in critical sealing applications
Common materials include:
FKM (Viton®) – high temperature and chemical resistance
FFKM – extreme chemical and thermal environments
HNBR – enhanced mechanical and oil resistance
PTFE – low friction and chemical stability  

Typical Applications

Our sealing solutions are used across a wide range of oil and gas systems:
Downhole tools and wellhead equipment
Subsea systems and offshore platforms
Pipelines and pressure vessels
Pumps, valves, and compressors
Refining and processing equipment
These applications require high-integrity sealing to ensure safety, environmental protection and operational efficiency.
Filling arms
Horizontal drilling and fracturing
Sliding sleeve systems
Natural gas extraction

Technical Support & Enquiries

Need help selecting the right sealing solution for your oil & gas application?
πŸ“ž Call: +44 (0) 1226 273700
πŸ“§ Email: ask@ashton-group.co.uk
Or contact our team for expert advice.

Frequently Asked Questions

1. What seals are used in oil and gas applications?
Common sealing solutions include O-rings, metallic gaskets, hydraulic seals and PTFE components designed for high-pressure and chemically aggressive environments.

2. What is NORSOK M-710?
NORSOK M-710 is a standard used to qualify non-metallic sealing materials for oil and gas applications, ensuring resistance to rapid gas decompression and harsh conditions.

3. Why is RGD resistance important in seals?
Rapid gas decompression can damage seals in high-pressure gas environments. RGD-resistant materials prevent cracking and failure.

4. What materials are used for oil and gas seals?
Materials such as FKM, FFKM, HNBR, and PTFE are commonly used due to their resistance to chemicals, temperature and pressure extremes.

Can oil and gas seals be customised?
Yes, sealing solutions can be engineered to meet specific application requirements, including extreme environments and specialised equipment.