Project Description

Set between the Santa Monica Mountains and the Pacific Ocean, Pepperdine University’s Malibu campus spans more than 800 acres of academic buildings, residential spaces, and landscaped outdoor environments.

Maintaining a campus of this scale requires reliable infrastructure behind the scenes, including irrigation systems designed to deliver controlled water flow while protecting the system from pressure fluctuations and surges.

To support these requirements, Pepperdine utilized Griswold Controls’ 2230 Normally Closed Pressure Regulating Valves.

The 2230 combines automated solenoid control with pressure regulation, allowing irrigation zones to operate as needed while helping maintain appropriate system conditions. Its slow-closing operation also helps minimize pressure surges and water hammer, protecting piping and other irrigation infrastructure.

Designed for reliable outdoor performance and simplified maintenance, the 2230 provides a durable solution for automated irrigation applications across a large and demanding campus environment.

Challenges and Solutions

• Managing Irrigation Across a Large Campus
  A campus-wide irrigation system requires dependable control over when and where water is delivered. Individual irrigation zones must operate consistently while integrating with automated control systems.
• Protecting the System from Pressure Surges
  Rapid valve closure can create pressure surges and water hammer that place unnecessary stress on irrigation piping and system components.
• Maintaining Reliable Performance in Outdoor Environments
  Irrigation components must operate reliably in environments exposed to moisture and repeated operating cycles while remaining accessible for maintenance.

The 2230 Normally Closed Pressure Regulating Valve provides electrically controlled operation through its solenoid, allowing the valve to open and close as required by the irrigation control system.

Its slow-closing operation gradually reduces flow during shutdown, helping minimize surge conditions and water hammer while providing smoother system operation.

Designed for dependable outdoor performance, the valve features a watertight epoxy-molded solenoid coil and a diaphragm-disc assembly guided by a stainless-steel stem. Its internal components can also be serviced without removing the valve body from the piping system, helping simplify maintenance and reduce downtime.

Benefits and Outcomes

• Automated Irrigation Control
  The normally closed solenoid design allows the valve to remain securely closed when de-energized and open when activated by the irrigation control system.
• Pressure Management
  The valve provides pressure regulating functionality to help support consistent operating conditions throughout the irrigation system.
• Reduced Water Hammer
  Slow-closing operation helps minimize pressure surges associated with rapid valve closure, helping protect irrigation piping and other system infrastructure.
• Reliable Outdoor Performance
  A watertight solenoid coil and guided diaphragm-disc assembly support dependable operation in demanding irrigation environments.
• Simplified Maintenance
  Internal components can be serviced without removing the valve body from the piping system, helping reduce maintenance time and disruption.

Products Used