Introduction to Irrigation Control Valve Covers for Landscape Systems

Introduction to Irrigation Control Valve Covers

For any lawn or landscape irrigation system, the control valves are one of the most important components. These valves control the flow of water to the various zones in the system by opening and closing. To protect these valves from damage and the elements, valve covers are an essential accessory.

Irrigation control valve covers serve several important functions. They protect the valve and wiring from unintentional damage from lawn mowers, string trimmers and other equipment. Covers also keep dirt, debris and mulch out of the valves. In climates with cold winters, covers provide freeze protection by insulating the valve. Additionally, the covers simply keep the valves looking neat and professional.

Types of Irrigation Control Valve Covers

There are a few main types of irrigation control valve covers:

• Plastic covers - Made of durable plastic, these covers snap or screw together over the valve assembly. They often have openings to run wiring out. Plastic covers are lightweight, inexpensive and easy to install.
• Metal covers - Constructed of aluminum or stainless steel, metal covers are very durable against damage. They provide excellent freeze protection in cold climates. Metal is naturally rust-resistant.
• Decorative covers - For landscapes where aesthetics are important, decorative covers made of plastic, fiberglass or metal can blend in with the landscaping or even be disguised as rocks. These covers conceal and protect valves.

Key Features of Irrigation Valve Covers

When selecting an irrigation control valve cover, there are several features to consider:

• Durability - Covers protect valves, so durability against damage is important. Plastic is sufficiently durable for most situations. Metal offers the highest level of durability.
• Insulation - In colder climates, the cover should provide good insulation against freezing. Both plastic and metal covers can be effective insulation.
• Waterproofing - Covers should be waterproof to keep moisture away from electrical components. Look for well-designed plastic or metal covers with gaskets or seals.
• Ease of installation - Covers that can be installed without tools or with just simple hand tools are preferable for most DIYers.
• Aesthetics - For visible locations, decorative covers are available to match landscaping.

Selecting the Right Irrigation Control Valve Cover

When selecting a valve cover, start by determining the number of valves it needs to accommodate. Most standard irrigation systems have between 4 and 12 stations/valves. Then choose the material: plastic, metal or decorative. Consider any special features like insulation or locking mechanisms.

Here are some top-rated irrigation valve covers to consider:

NDS 12-Inch Plastic Valve Box

This sturdy plastic valve box by NDS is 12 inches wide and has enough space for 2 to 3 valves. The green plastic blends into most landscapes. It snaps together for easy tool-free installation and has pre-drilled openings for wiring.

Rain Bird Round Valve Box with Locking Lid

Made of durable plastic, this cover by Rain Bird can fit 1 to 2 valves. It features a locking lid to secure it, along with openings for wiring. The round shape and neutral green/brown color help it blend into landscaping.

Carson Brooks 9-Inch Aluminum Irrigation Valve Box

For a super durable metal option, this Carson Brooks valve box is made of rustproof aluminum. At 9 inches wide, it fits 1 to 2 valves. The sturdy latches keep the lid securely closed. It also provides excellent freeze protection.

NDS 11-Inch Pro Series Valve Box

With its heavy-duty plastic construction, this professional-grade valve box offers great durability and smooth operation. The pedal-activated flip lid allows easy access without kneeling down. It fits 1 to 2 valves.

Decorative Valve Cover Options

Some popular decorative valve covers that disguise the valves include faux rocks, benches, flower pots, stepping stones and more. Look for decorative covers made of durable materials like fiberglass or high-density polyethylene (HDPE) plastic.

Installation Tips for Irrigation Valve Covers

When installing irrigation control valve covers, follow these tips for optimal performance:

• Make sure the cover is large enough to comfortably fit over valves and wiring.
• Position valve boxes near edges of landscaping beds for easier access.
• For plastic covers, properly seat them and secure any locking tabs or snaps.
• For metal covers, use gloves when handling to avoid sharp edges.
• Arrange valves neatly before covering for a organized appearance.
• Run wiring out of the openings in a tidy manner, using conduit if needed.
• Make sure lids are completely closed to keep out debris; lock them if able.
• Allow space for opening covers fully when working on valves.

With the valve(s) fully covered, it's important to keep the box exterior clear of mulch, dirt and other landscape material for easy access.

Maintaining Irrigation Valve Covers

Like any system component, irrigation valve covers need periodic maintenance to stay in top condition. Here are some maintenance tips:

• Inspect covers seasonally along with checking the irrigation system.
• Clear away any accumulated debris from the cover exterior.
• Check for cracks/damage and replace if needed.
• Ensure lids are still closing completely and any locks/latches are working.
• Check wiring connections are still solid.
• Replace worn or missing gaskets on plastic covers.
• Use spray lubricant on any sticky moving parts.

With proper installation and maintenance, irrigation control valve covers should provide years of reliable protection for the valves, enhancing the lifespan of the system.

Conclusion

Protecting irrigation control valves with covers is an essential part of any sprinkler system installation. The covers keep valves free of debris and prevent damage from landscaping equipment. They also provide insulation against freezing in colder climates. Plastic covers offer affordability and easy installation, while metal covers provide unbeatable durability. Decorative covers can help valves blend seamlessly into visible landscaped areas. Following the proper installation and maintenance recommendations will ensure irrigation valve covers keep valves operating smoothly for many seasons.

FAQs

Why are valve covers needed on irrigation systems?

Valve covers protect the irrigation control valves and wiring from damage from lawn mowers, debris, freezing temperatures and more. They keep the valves functioning properly for longer.

What are the main types of irrigation valve covers?

The main types are plastic covers, metal covers usually made from aluminum or stainless steel, and decorative covers designed to blend into landscaping.

How many valves can a standard cover fit?

Most irrigation control valve covers are designed to fit 1-3 valves depending on their size. Large covers may accommodate up to 5 valves.

Should valve covers be locked?

Locking valve covers provides added security from tampering and theft. Many plastic covers have built-in locking tabs, while metal covers may use padlocks.

How often should valve covers be inspected?

Valve covers should be periodically inspected for damage, leaks, and proper operation, at least seasonally. This allows preventative maintenance to maximize their lifespan.