DN40 Adjustable Brass Water Pressure Reducing Valve with Gauge, Durable Pressure Regulator for Home Plumbing

Color: DN40 Product overview A brass adjustable water pressure reducing and maintaining valve designed to protect plumbing, hoses, and appliances from excessive pressure. Simple internal design allows installation on most cold and hot water lines. Available in sizes DN15, DN20, DN25, DN32 with thread options G 1/2 inch, 3/4 inch, 1 inch, and 2 inch. Key benefits Protects plumbing and hoses by reducing inlet pressure that can cause leaks or damage. Simple installation and maintenance thanks to a compact, easy to service internal design. Adjustable output pressure using a screwdriver, so you can set the pressure to match fixtures or equipment requirements. Durable brass construction for corrosion resistance and long service life. Upgraded components provide improved shockproof, dustproof, and waterproof performance to extend reliability in different environments. Function and compatibility Function: Pressure reducing and relief regulator to maintain a stable downstream pressure and prevent overpressure. Compatible with most domestic and mobile water systems, and suitable for both cold and hot water lines where material and temperature limits of brass are acceptable. Sizes: DN15, DN20, DN25, DN32. Thread options: G 1/2 inch, 3/4 inch, 1 inch, 2 inch. Color option listed as DN40. Operation and adjustment Adjust pressure by turning the adjustment screw with a screwdriver. Fine tuning lets you match the valve output to appliances, irrigation systems, or general household supply. Internals are intentionally simple to allow straightforward servicing or replacement if needed. Practical applications Home plumbing: Protect appliances such as water heaters, dishwashers, and washing machines from pressure spikes. Recreational vehicles and travel trailers: Regulate campground water pressure to avoid damage to hoses and fittings when connecting to external supplies. Garden and irrigation systems: Maintain consistent pressure for hoses and sprinklers to improve performance and reduce burst risk. What to expect A brass pressure reducing valve that reduces inlet pressure to a safer, adjustable level. Reliable operation when installed according to local plumbing practices and within the operating limits of brass components. Notes Ensure size and thread selection match your existing piping or fittings before installation. Follow local plumbing codes and recommendations for installation and any required downstream test equipment.