Berluto DRV725 Reducing Valve

Auld Valves Ltd has ceased trading. However, please reach out to us, as we may have alternative options available in our product range.

The Auld Double Control Reducing Valve is ideal for applications requiring substantial pressure reductions, provided that the inlet pressure does not exceed 51 barG. This valve features a self-contained balance pipe, ensuring optimal performance with a closing pressure of +7% relative to the reduced pressure. Its balanced design remains unaffected by fluctuations in inlet pressure and responds instantly to changes in demand. The valve offers impressive reduced pressure accuracy of ±5% across a flow range from full flow down to 10% (with a turndown ratio of 10 to 1). Furthermore, its soft valve faces are well-suited for dead end conditions, and the single seat design facilitates precise control at low flow rates.

This spring-operated liquid relief valve features a cartridge-type assembly that can be easily withdrawn from the body without disturbing the spring setting, thus relieving pressure efficiently. This innovative design allows for the cleaning of seating surfaces without the need to reset the valve, making maintenance straightforward and hassle-free. Commonly used with positive displacement pumps for relief or bypass applications, the spring cartridge assembly can also be supplied separately for integration as a pump bypass relief valve. Furthermore, the spindle is equipped with an ‘O’ ring to safeguard the spring, especially in corrosive environments.

Specifications

Sizes: 3/4", 1", 1.1/2", 2"
Connections: BSP Male Inlet x BSP Female Outlet
Materials: Bronze body
Disc: Bronze
Joints & Seals: Nitrile spindle O ring
Medium: Liquids
Set Pressure: 0.35 to 24 Barg
Temperature: -20 to +120 °C
Max Design: Notes:

The Brownall Air Eliminator is essential for any heating system to effectively eliminate air pockets. This reliable valve can withstand a maximum pressure of 10 bar and operates efficiently at temperatures of up to 93°C. Formerly marketed as the Charles Winn Automatic Air Eliminator, more than 200,000 units have been sold across the UK over the past 25 years. Many of these valves remain in service today, demonstrating their exceptional durability and ability to provide long-term, trouble-free operation.

Specifications

• Connections: 1/2" BSP Female Screwed Outlet x 3/8" BSP Screwed Male
• Maximum System Pressure: 10 Barg
• Temperature Range: -20 to 93°C