Here’s a list of leading national suppliers of stainless steel straight check valves in the United Kingdom:

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Leading Suppliers of Stainless Steel Straight Check Valves in the UK

1. Parker Hannifin

   • Website: parker.com
   • Overview: A global leader in motion and control technologies, Parker provides various check valves for different applications.

2. Norgren

   • Website: norgren.com
   • Overview: Specializes in engineering and automation solutions, including a range of fluid control valves.

3. Acer valves

   • Website: acervalves.com
   • Overview: Offers a variety of valves, including stainless steel check valves tailored for multiple industries.

4. Crane Fluid Systems

   • Website: cranefd.com
   • Overview: Part of the Crane Co., supplier of valves and fluid handling products for commercial and industrial applications.

5. Flowserve Corporation

   • Website: flowserve.com
   • Overview: Provides a wide range of flow management services and products, including check valves in various materials.

6. Valves Online

   • Website: valvesonline.com
   • Overview: An online supplier specialized in valves and fittings, offering an extensive selection of stainless steel check valves.

7. Dunlop Oil & Marine

   • Website: dunlopoil.com
   • Overview: Facilitates the provision of various engineering solutions, including stainless steel valves for the oil and gas industries.

8. Wolseley UK

   • Website: wolseley.co.uk
   • Overview: Leading supplier of plumbing and heating products, including a range of valves suitable for various applications.

9. Festo

   • Website: festo.com
   • Overview: Known for automation technology, Festo also offers an array of valves, including stainless steel options.

10. Hydraulics Online

    • Website: hydraulicsonline.com
    • Overview: Specializes in hydraulic components, including stainless steel check valves for various sectors. ```

This list includes a mix of manufacturers and suppliers that cater to different sectors within the UK. Each company typically offers a range of products and services beyond just stainless steel check valves, allowing for tailored solutions based on industry needs.