High-pressure water valve leakage is the enemy of any hydraulic system operating in a harsh environment. Over time, valve leakage can diminish the performance and efficiency of the system. Excessive stress on the system components can create unnecessary operating, maintenance and replacement costs.
Understanding the types of leaks that plague these systems and the industry standards for leakage tolerance are steps to take to minimize valve leakage. But what else can you do to plan ahead for better long-term performance?
During system planning and design, savvy plant and maintenance managers should take the time to size the proper high-pressure water valves required for the particular application. Follow Hunt Valve’s three simple steps to find an industrial valve that minimizes leakage:
1. Don’t oversize the valve: This is one of the most common causes of leakage. Flow velocities that are incompatible with an oversized valve will result in eventual leakage.
2. Recognize potential incompatibilities between the flow media and valve materials: Identify possible compatibility issues between the flow media and the materials of construction of the valve, especially in the wetted areas. Consult incompatibility charts for valve materials that valve, seal and gasket manufacturers publish.
3. Beware of additives in the flow media: Additives can wreak havoc on valve components. For example, glycol is added to a water-based hydraulic system for fire resistance. But, it will rapidly degrade a polyurethane or polyester seal resulting in leakage.
Proper high-pressure water valve selection is proven to help minimize leakage, resulting in a system that’s safe, efficient and economical to operate. For more ways to avoid the pain of leakage, download our free guide “Managing Leakage in Hydraulic Valve Design.”