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Valves

Customers around the world rely on James Walker to help keep their valves operating efficiently and safely, day‑in and day‑out.

We have an extensive range of world-class products and services which meet or exceed the required international standards for use in valves and related infrastructure. James Walker's commitment to constantly advancing materials technology, product design and manufacturing techniques provides valve sealing solutions no matter the requirement.

To explore our range of valve sealing products, click on the interactive points on the image below.

Discover complete valve sealing performance

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Elastomers

In-house formulation and compounding provide the capability to tailor materials to match application requirements.

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Packing for valves

The right packing for every valve application.

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Valve seats

Devlon materials are widely specified by valve manufacturers and are approved by major oil and gas producers.

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Case studies

LNG
Valves

Supagraf Control packing for LNG application
Petrochemical
Valves

Custom metal valve seat
Nuclear
Valves

Flange bolting on nuclear steam non-return valve
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PFAS

Whilst a decision on the proposed PFAS regulation, and the likely timeline for implementation, are still being considered by the ECHA, James Walker is proactively looking at, and qualifying, alternative materials and working with its suppliers to ensure sealing materials are available that will offer the required levels of performance and be compliant with any proposed regulations.

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PFAS
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H2 proven products and materials

Our range of products and materials that have been independently third party tested and are validated by James Walker for sealing applications in hydrogen service.

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H2 proven products and materials

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Spring-energised seals

The high-performance answer to fluid sealing problems where conventional products fail to give the integrity or reliability required.

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CNAF gaskets

The products in our CNAF range of gaskets are highly proven non-asbestos, rubber-bonded sheet materials, manufactured from compressed aramid fibres combined with a variety of reinforcing fibres to offer a range of performance characteristics.

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Load indicating fasteners

The vast majority of all bolted joint failures can be attributed to inaccurate bolt tension at installation.

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Download

Valve sealing guide

Find out how James Walker can help you solve your valve sealing challenges by downloading our Valve sealing guide.

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Valve sealing guide

Related insights

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Hydrogen
Sealing hydrogen applications
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Oil & Gas
Low temperature elastomer sealing
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Oil & Gas
Testing elastomers at low temperatures

Valve industry products

Chieftain x banner small
TYPICAL APPLICATIONS
  • HPI/CPI
  • Valves
  • Water

Chieftain® X

Our premium grade universal sheet jointing.

Find out more
Sentinel x banner small
TYPICAL APPLICATIONS
  • General processing
  • HPI/CPI
  • Potable water

Sentinel® X

Our general purpose WRAS approved sheet jointing.

Find out more
Centurion x banner small
TYPICAL APPLICATIONS
  • General processing
  • HPI/CPI
  • Potable water

Centurion® X

WRAS approved BS7531 Grade X CNAF sheet jointing.

Find out more
Supagraf premier banner small
TYPICAL APPLICATIONS
  • Fugitive emissions
  • HPI/CPI
  • Oil & Gas
  • Valves

Supagraf® Premier

Our world-beating fugitive emission control packing for valves, third party tested to all known industry standards.

Find out more
Devlon v api banner small h2
TYPICAL APPLICATIONS
  • Hydrogen
  • Valves

Devlon® V-API

Designed specifically for valve and offshore applications.

Find out more
Devlon k100 banner small
TYPICAL APPLICATIONS
  • FDA
  • Valves

Devlon® K100

100% pure virgin PEEK material.

Find out more
Lionpak 9500 banner small
TYPICAL APPLICATIONS
  • Pumps
  • Valves

Lionpak® 9500

A versatile natural yarn packing with PTFE lubrication.

Find out more
Lionpak 2100 banner small
TYPICAL APPLICATIONS
  • Potable water
  • Pumps
  • Valves

Lionpak® 2100

High-purity white packing, cross plaited from tough, thermally stable PTFE fibre yarn for use in valve and potable water applications.

Find out more
Lionpak 2102 banner small
TYPICAL APPLICATIONS
  • Valves

Lionpak® 2102

A specialised PTFE based packing that conforms to FDA and EU standards for cleanliness.

Find out more
Lionpak 2202 banner small
TYPICAL APPLICATIONS
  • Food
  • Pumps
  • Valves

Lionpak® 2202

A specialised PTFE based diagonally braided packing, filled with refined mineral filler particles that conforms to FDA standards for cleanliness.

Find out more
Lionpak 2300 banner small
TYPICAL APPLICATIONS
  • Valves

Lionpak® 2300

100% GFO yarn packing that is highly versatile and adds a new dimension to reliability and performance.

Find out more
Lionpak 2303 banner small
TYPICAL APPLICATIONS
  • Pumps
  • Valves

Lionpak® 2303

A reliable packing based on graphite and PTFE yarn with silicone-free lubrication.

Find out more
Lionpak 2500 banner small 1
TYPICAL APPLICATIONS
  • Potable water
  • Pumps
  • Valves

Lionpak® 2500

Tough, high performance packing with an elastomer core and WRAS approval for use with cold and hot potable water up to 85°C.

Find out more
Lionpak 5302 banner small
TYPICAL APPLICATIONS
  • Pumps
  • Valves

Lionpak® 5302

A specialised graphite / carbon fibre packing for chemical and abrasion resistance.

Find out more
Supagraf fe banner small
TYPICAL APPLICATIONS
  • Fugitive emissions
  • Valves

Supagraf® FE

A high performance fugitive emission control packing for valves.

Find out more

Valve industry products

Chieftain x banner small
TYPICAL APPLICATIONS
  • HPI/CPI
  • Valves
  • Water

Chieftain® X

Our premium grade universal sheet jointing.

Find out more
Sentinel x banner small
TYPICAL APPLICATIONS
  • General processing
  • HPI/CPI
  • Potable water

Sentinel® X

Our general purpose WRAS approved sheet jointing.

Find out more
Centurion x banner small
TYPICAL APPLICATIONS
  • General processing
  • HPI/CPI
  • Potable water

Centurion® X

WRAS approved BS7531 Grade X CNAF sheet jointing.

Find out more
Supagraf premier banner small
TYPICAL APPLICATIONS
  • Fugitive emissions
  • HPI/CPI
  • Oil & Gas
  • Valves

Supagraf® Premier

Our world-beating fugitive emission control packing for valves, third party tested to all known industry standards.

Find out more
Devlon v api banner small h2
TYPICAL APPLICATIONS
  • Hydrogen
  • Valves

Devlon® V-API

Designed specifically for valve and offshore applications.

Find out more
Devlon k100 banner small
TYPICAL APPLICATIONS
  • FDA
  • Valves

Devlon® K100

100% pure virgin PEEK material.

Find out more
Lionpak 9500 banner small
TYPICAL APPLICATIONS
  • Pumps
  • Valves

Lionpak® 9500

A versatile natural yarn packing with PTFE lubrication.

Find out more
Lionpak 2100 banner small
TYPICAL APPLICATIONS
  • Potable water
  • Pumps
  • Valves

Lionpak® 2100

High-purity white packing, cross plaited from tough, thermally stable PTFE fibre yarn for use in valve and potable water applications.

Find out more
Lionpak 2102 banner small
TYPICAL APPLICATIONS
  • Valves

Lionpak® 2102

A specialised PTFE based packing that conforms to FDA and EU standards for cleanliness.

Find out more
Lionpak 2202 banner small
TYPICAL APPLICATIONS
  • Food
  • Pumps
  • Valves

Lionpak® 2202

A specialised PTFE based diagonally braided packing, filled with refined mineral filler particles that conforms to FDA standards for cleanliness.

Find out more
Lionpak 2300 banner small
TYPICAL APPLICATIONS
  • Valves

Lionpak® 2300

100% GFO yarn packing that is highly versatile and adds a new dimension to reliability and performance.

Find out more
Lionpak 2303 banner small
TYPICAL APPLICATIONS
  • Pumps
  • Valves

Lionpak® 2303

A reliable packing based on graphite and PTFE yarn with silicone-free lubrication.

Find out more
Lionpak 2500 banner small 1
TYPICAL APPLICATIONS
  • Potable water
  • Pumps
  • Valves

Lionpak® 2500

Tough, high performance packing with an elastomer core and WRAS approval for use with cold and hot potable water up to 85°C.

Find out more
Lionpak 5302 banner small
TYPICAL APPLICATIONS
  • Pumps
  • Valves

Lionpak® 5302

A specialised graphite / carbon fibre packing for chemical and abrasion resistance.

Find out more
Supagraf fe banner small
TYPICAL APPLICATIONS
  • Fugitive emissions
  • Valves

Supagraf® FE

A high performance fugitive emission control packing for valves.

Find out more

Expert to Expert

Want to discuss your project, engineering or materials challenge expert to expert? Simply provide us with your contact details and a little information about the application you are working on, and one of our experts will contact you as soon as possible.

Contact us
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