{"product_id":"horizontal-check-valve-brass-one-way-valve-threaded-connection-backflow-preventer-for-water-systems-in-multiple-standard-sizes-dn15-dn20-dn25-dn32-dn40-dn50-dn65-dn80-dn100-providing-secure-flow-control-in-plumbing-and-industrial-applications","title":"Horizontal Check Valve brass one-way valve threaded connection backflow preventer for water systems in multiple standard sizes DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 providing secure flow control in plumbing and industrial applications.","description":"\u003ch1\u003eBrass Check Valve with Threaded Connections for Horizontal or Vertical Installation in Multiple Standard Sizes\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665391.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis brass check valve is a fundamental plumbing component designed to manage unidirectional fluid flow in water supply systems. Acting as a simple one-way gate, it prevents water from flowing backwards, a function crucial for protecting pumps, maintaining system pressure, and safeguarding potable water supplies from potential contamination due to back-siphoning. Its construction from brass and availability in a wide array of standard sizes make it a versatile fitting suitable for a variety of applications, from residential plumbing repairs to industrial piping projects. The choice between horizontal and vertical configurations allows installers to fit the valve seamlessly into different pipe layouts, ensuring functionality without compromising on space or installation convenience.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665393.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis check valve prioritises practical functionality through its material choice and design. It is built to perform a specific mechanical task reliably within standard water systems, offering a straightforward solution to a common plumbing need.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe valve body is manufactured from brass, a material widely recognised and used in the plumbing industry. Brass offers inherent benefits for water-contact applications, including good corrosion resistance which helps prevent degradation from continuous exposure to water. This material choice contributes to the valve's service life in typical domestic and light commercial water systems. The internal mechanism is a simple swing or lift design that opens under forward pressure and closes to seal against backflow, requiring no external power source to operate.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eA key practical advantage of this product is its availability in a comprehensive range of standard plumbing sizes. The sizes are clearly designated using both metric (DN) and imperial (inch\/points) nomenclature: DN15 (4 points), DN20 (6 points), DN25 (1 inch), DN32 (1.2 inch), DN40 (1.5 inch), DN50 (2 inch), DN65 (2.5 inch), DN80 (3 inch), and DN100 (4 inch). This wide selection ensures you can find the correct valve to match the diameter of your existing pipework, whether you are working on a small domestic branch line or a larger main supply pipe. The threaded connections on both ends provide a secure method of installation into similarly threaded pipe fittings.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665406.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe check valve serves a protective role in various piping scenarios. Its application is dictated by the need to control flow direction and prevent the reversal of water, which can have several negative consequences in a plumbing system.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eFor professional plumbing, heating, or industrial applications, this valve can be specified for use in pump discharge lines to prevent water hammer and protect the pump impeller from reverse rotation. It is suitable for use in irrigation systems to stop drainage back to the source, in solar thermal systems to maintain thermosiphon flow, or in any process line where maintaining a directional flow is critical. The availability of both horizontal and vertical models allows system designers to incorporate the valve into the pipe run in the most space-efficient and hydraulically favourable orientation.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eIn domestic settings, a common use is installing a check valve on the outlet pipe of a submersible utility pump or a garden pond pump to prevent the pump from having to re-prime itself each time it starts. It can also be fitted to the cold water inlet of a combi-boiler to prevent hot water from flowing back into the cold mains supply. Homeowners may also use it in rainwater harvesting systems or on outdoor tap connections to prevent backflow into the main house supply. Choosing the correct size (e.g., 1\/2 inch or 3\/4 inch for typical garden taps) is essential for effective operation.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665410.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe value of this check valve lies in its focused functionality and adaptability. It addresses a specific technical requirement without unnecessary complexity, making it a cost-effective component for system integrity.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eOnce installed correctly, a brass check valve typically requires minimal ongoing maintenance. Its mechanical operation has no consumable parts under normal conditions. Should the system need to be modified or the valve require inspection, its threaded design allows for removal and potential reinstallation elsewhere, provided the threads remain in good condition and appropriate sealing is reapplied. The corrosion resistance of brass contributes to this long-term, low-maintenance profile in standard water environments.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eThis product provides a clear, single-purpose solution backed by standardised sizing and a familiar, reliable material. The option to select between horizontal and vertical check valves means you are not forced to adapt your pipework to fit the valve; you can select the valve that fits your pipework. The extensive size range eliminates the need to search for a less common fitting, saving time on procurement for both DIY enthusiasts and trade professionals. It delivers the essential function of backflow prevention without additional features that may not be required for basic applications.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665411.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665715.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665716.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665718.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665720.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382665732.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382666461.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382666462.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382666467.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382666473.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382666475.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382666492.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382904953.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Brass horizontal and vertical check valve with threaded connections in multiple sizes\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US11\/1447\/2025-09-30\/original-image\/1618382994233.webp\"\u003e\u003c\/div\u003e","brand":"psdxp6-30","offers":[{"title":"Vertical check valve \/ 3 inches","offer_id":54865278566742,"sku":"CJGJ107911817QJ","price":67.75,"currency_code":"GBP","in_stock":true},{"title":"Horizontal check valve \/ 6 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