MacDonald Plumbing Supplies DZR Brass Double Check Valve 35mm

The DZR Brass Double Check Valve 35mm is a practical plumbing fitting designed to help prevent reverse flow within compatible water supply systems. Manufactured from dezincification resistant brass, it is designed to provide reliable performance in plumbing installations where resistance to dezincification is important. The 35mm size makes it suitable for compatible larger pipework applications. A useful choice for plumbers and installers, this double check valve is suitable for a range of domestic, commercial and maintenance plumbing projects where backflow protection is required.

MacDonald Plumbing Supplies MacValve WRAS Remote Filling Loop Part L Compliant with Gauge

The MacValve WRAS Remote Filling Loop Part L Compliant with Gauge is a practical and compliant solution for filling and pressurising central heating systems and heat interface units. Designed for flexible installation, it can be fitted remotely from the boiler or cylinder, making it ideal where access is limited or no integral pressure gauge is present. Supplied complete with a gauge and essential safety components, it ensures accurate pressure monitoring and safe system operation.

MacDonald Plumbing Supplies MacPress 28mm Double Check Valve

The MacPress 28mm Double Check Valve is WRAS & KIWA Certified, offering dependable backflow prevention in potable water systems. Compatible with M Profile press fittings, it is perfect for both residential and commercial applications, ensuring water safety and seamless integration. Installation Instructions for Press Fittings   1. Ensure the copper tube is cut squarely. 2. Deburr the pipe internally and externally to form a smooth edge. 3. Check that the ‘O’ ring of the fitting is seated correctly and free from impurities. 4. Do not use jointing compound, oil or grease. 5. Insert the tube to the full depth of the socket. 6. Clearly mark the tube at full depth. 7. Aline the fitting with the jaw of the tool correctly. 8. Make the press connection, using a suitable M profile jaw.

MacDonald Plumbing Supplies MacPress 22mm Double Check Valve

The MacPress 22mm Double Check Valve is WRAS & KIWA Certified, offering dependable backflow prevention in potable water systems. Compatible with M Profile press fittings, it is perfect for both residential and commercial applications, ensuring water safety and seamless integration. Installation Instructions for Press Fittings   1. Ensure the copper tube is cut squarely. 2. Deburr the pipe internally and externally to form a smooth edge. 3. Check that the ‘O’ ring of the fitting is seated correctly and free from impurities. 4. Do not use jointing compound, oil or grease. 5. Insert the tube to the full depth of the socket. 6. Clearly mark the tube at full depth. 7. Aline the fitting with the jaw of the tool correctly. 8. Make the press connection, using a suitable M profile jaw.

MacDonald Plumbing Supplies MacPress 15mm Double Check Valve

The MacPress 15mm Double Check Valve is WRAS & KIWA Certified, offering dependable backflow prevention in potable water systems. Compatible with M Profile press fittings, it is perfect for both residential and commercial applications, ensuring water safety and seamless integration. Installation Instructions for Press Fittings   1. Ensure the copper tube is cut squarely. 2. Deburr the pipe internally and externally to form a smooth edge. 3. Check that the ‘O’ ring of the fitting is seated correctly and free from impurities. 4. Do not use jointing compound, oil or grease. 5. Insert the tube to the full depth of the socket. 6. Clearly mark the tube at full depth. 7. Aline the fitting with the jaw of the tool correctly. 8. Make the press connection, using a suitable M profile jaw.  

MacDonald Plumbing Supplies Hose Union Bib Tap c/w DCV ½

The ½" Hose Union Bib Tap c/w DCV is a durable and reliable outdoor tap designed to provide convenient access to water for gardens, patios, garages, and external areas. Featuring a standard hose union connection and an integrated double check valve (DCV), it allows easy hose attachment while helping to prevent backflow into the mains water supply. Manufactured from high-quality materials, this bib tap offers dependable performance and long-lasting durability in domestic and commercial installations.

MacDonald Plumbing Supplies WRAS Approved Double Check Valve 28mm

This WRAS approved double check valve (28mm) provides reliable backflow prevention and is an essential component for plumbing systems.

MacDonald Plumbing Supplies WRAS Approved Double Check Valve 22mm

This WRAS approved double check valve (22mm) provides reliable backflow prevention and is an essential component for plumbing systems.

MacDonald Plumbing Supplies WRAS Approved Double Check Valve 15mm

This WRAS approved double check valve (15mm) provides reliable backflow prevention and is an essential component for plumbing systems.