Introduction
Installing an Orbit sprinkler valve yourself can save you hundreds of dollars in labor costs while giving you full control over your irrigation system. Whether you are replacing a faulty valve or installing a new zone in your landscape, understanding the process is essential for a reliable, leak-free setup. This guide walks you through every step of how to install an Orbit sprinkler valve, from gathering tools to testing your system. By the end, you will feel confident tackling this project and maintaining consistent water pressure across your yard.
- Tools and Materials Needed
- Understanding Orbit Sprinkler Valves
- Planning Your Installation
- Turning Off Water and Power
- Removing the Old Valve
- Preparing the Valve Box
- Connecting the New Valve
- Wiring the Electric Valve
- Testing the Installation
- Troubleshooting Common Issues
- Maintenance Tips and Best Practices
- Common Mistakes to Avoid
- Valve Comparison Table
- Frequently Asked Questions
- Conclusion
Tools and Materials Needed
Before you begin, gather all the necessary tools and materials to avoid interruptions during the installation. Having everything on hand ensures a smooth and efficient process.
Required Tools
- Shovel or trowel
- Wrench set or adjustable wrench
- Pliers
- Screwdriver set
- Wire strippers
- Teflon tape or pipe dope
- Multimeter (for electric valves)
- Garden hose
- Towels or rags
Required Materials
- Orbit sprinkler valve (model-specific)
- Replacement valve box (if damaged)
- PVC pipe fittings (if modifying plumbing)
- Electrical tape or wire nuts
- Silicone sealant or waterproof grease
- New sprinkler heads (if upgrading)
Understanding Orbit Sprinkler Valves
Orbit sprinkler valves come in several configurations, but most residential systems use one of two types. Understanding your valve helps you choose the right replacement and install it correctly.
Electric vs. Manual Valves
Electric valves are controlled by a timer or smart controller and are the most common type in automatic systems. They use a solenoid to open and close the flow of water when signaled by low-voltage wires. Manual valves require physical turning and are typically found in older systems or as isolation valves.
Common Orbit Models
Orbit offers several popular valve series, including the 57000, 57950, and 57100 families. Each model may have slightly different inlet and outlet configurations, so always check your existing valve or controller manual before purchasing a replacement. Using the wrong model can lead to mismatched fittings and wasted time.
Key Components of an Orbit Valve
A typical Orbit valve includes a body, diaphragm, spring, solenoid, and flow control knob. The diaphragm seals the valve when closed and flexes to allow water flow when the solenoid is energized. Understanding these parts helps you recognize wear and replace them when needed.
Planning Your Installation
Proper planning prevents leaks, pressure issues, and unnecessary rework. Take time to assess your system layout and determine where your new valve will fit.
Locating the Valve Box
Valve boxes are usually buried near the edge of your property or alongside the house foundation. Use a metal detector or probe the soil gently with a screwdriver to find the rectangular plastic or concrete box. Mark its location clearly before digging.
Checking Water Pressure
Orbit valves typically operate between 20 and 100 PSI. If your system pressure exceeds this range, you may need a pressure regulator. Low pressure can cause weak sprinkler performance, while excessive pressure can damage seals and fittings.
Mapping Out Zones
Identify which zone your new valve will serve. Count the number of sprinkler heads and calculate their total flow rate. This helps ensure your valve can handle the load without causing pressure drops or premature failure.
Turning Off Water and Power
Safety comes first. Always shut off both water and electrical power before working on your irrigation system.
Shutting Off the Water Supply
Locate the main water shutoff valve for your irrigation system. This is often near the water meter or where the supply line enters your home. Turn the valve clockwise until it stops to cut off water flow to the valves.
Disconnecting Electrical Power
Switch off the breaker that powers your irrigation controller. If your system uses battery backup, remove the batteries as well. This prevents accidental activation of the solenoid while you work.
Draining Residual Water
Open the nearest faucet or valve to drain any remaining water in the lines. Wipe away standing water in the valve box with a towel. Working in a dry environment reduces the risk of electrical hazards and makes connections easier to manage.
Removing the Old Valve
With water and power off, carefully remove the existing valve. Take photos before disconnecting anything to help with reassembly.
Disconnecting Wires
Label each wire with small pieces of tape before removing them. Most systems use color-coded wires, but labeling ensures you reconnect them correctly. Take note of which wire connects to the common terminal and which goes to the zone terminal.
Loosening Fittings
Use an adjustable wrench to loosen the union nuts on both the inlet and outlet sides of the valve. Be gentle to avoid damaging the surrounding pipes. If the fittings are stuck, apply penetrating oil and let it sit for a few minutes before trying again.
Lifting Out the Valve
Once the fittings are loose, carefully lift the valve out of the box. Inspect the pipe threads and fittings for signs of corrosion or damage. Clean the area thoroughly before installing the new valve.
Preparing the Valve Box
A clean, stable base is crucial for proper valve function. Take time to prepare the box and surrounding area.
Cleaning the Valve Box
Remove all debris, dirt, and old sealant from the bottom of the box. Check for cracks or deterioration in the plastic. A damaged box can allow water infiltration and make future maintenance difficult.
Checking Drainage
Ensure the box has adequate drainage holes. If water pools in the bottom, drill additional holes or add gravel to improve drainage. Poor drainage can cause the valve to sit in water, leading to premature failure.
Inspecting Pipe Condition
Examine the inlet and outlet pipes for signs of corrosion, cracks, or mineral buildup. Replace any damaged sections before installing the new valve. Use Teflon tape on all threaded connections to ensure a watertight seal.
Connecting the New Valve
With the area prepared, install your new Orbit sprinkler valve. Follow these steps carefully to avoid leaks and pressure issues.
Applying Teflon Tape
Wrap Teflon tape clockwise around all male threaded connections. Apply at least three wraps to ensure a tight seal. For extra protection, you can also apply a thin layer of pipe dope, but do not use both simultaneously as they can interfere with each other.
Installing the Valve Body
Insert the new valve into the box, aligning the inlet and outlet ports with the existing pipes. Hand-tighten the union nuts first, then use a wrench to secure them fully. Do not over-tighten, as this can crack the valve body or strip the threads.
Checking Alignment
Ensure the valve sits level and straight in the box. Misaligned valves can cause stress on the fittings and lead to leaks over time. Adjust the position if needed before fully tightening all connections.
Securing the Valve
Some valve boxes include clips or brackets to hold the valve in place. If your box does not have these, use zip ties or foam padding to prevent movement. A secure fit protects the valve from vibration and shifting soil.
Wiring the Electric Valve
If you are installing an electric valve, proper wiring is critical for reliable operation. Incorrect wiring can prevent the valve from opening or cause it to stay open continuously.
Identifying Wire Colors
Standard irrigation wiring uses red for the common wire and various colors for individual zone wires. However, always verify with your controller manual. When in doubt, label wires as you disconnect them from the old valve.
Stripping and Connecting Wires
Strip about half an inch of insulation from each wire end. Twist the bare copper strands together to prevent fraying. Connect the wires to the appropriate terminals on the solenoid, tightening securely but not over-tightening.
Using Wire Nuts
For splicing wires, use waterproof wire nuts designed for underground use. Apply a small amount of silicone sealant inside the nut before connecting to provide additional moisture protection. Wrap the connection with electrical tape for extra security.
Testing Connections
Use a multimeter to check continuity between the common wire and each zone wire. A reading of zero ohms indicates a good connection. Infinite resistance suggests a broken wire or loose connection that needs attention.
Testing the Installation
After installation, test your new Orbit sprinkler valve thoroughly before covering the valve box.
Restoring Water Supply
Slowly open the main water shutoff valve. Watch for leaks at all connection points. If you see dripping, tighten the fitting slightly and recheck. Allow the system to pressurize for several minutes before proceeding.
Manual Activation Test
If your valve has a manual bleed screw, turn it counterclockwise to open the valve manually. Water should flow freely through the system. Check each sprinkler head for proper spray pattern and coverage. Tighten the bleed screw when finished.
Automatic Cycle Test
Restore power to your controller and run a manual test of the zone. Observe how long the valve takes to open and close. A properly functioning valve should respond within a few seconds. Note any delays or irregular behavior for troubleshooting.
Final Inspection
Walk around the entire zone and check for puddles, uneven spray patterns, or dry spots. These may indicate pressure issues or blockages in the lines. Make adjustments to sprinkler heads as needed to achieve even coverage.
Troubleshooting Common Issues
Even with careful installation, problems can arise. Here are the most frequent issues and how to resolve them.
Valve Not Opening
If the valve does not activate, check the following. First, verify that the wires are connected to the correct terminals. Second, test the solenoid with a multimeter for continuity. Third, ensure the diaphragm is seated properly inside the valve body. A torn diaphragm will prevent the valve from opening.
Valve Staying Open
A valve that will not shut off usually indicates debris in the diaphragm or a damaged seal. Turn off the water, disassemble the valve, and rinse all components with clean water. Replace the diaphragm if you see tears, cuts, or mineral buildup.
Low Pressure Issues
Low pressure can result from several factors. Check for partially closed valves upstream, clogged filters, or leaks in the lateral lines. You can also test the pressure at a hose bib using a pressure gauge. If the reading is below 20 PSI, consider installing a booster pump.
Water Leaks at Connections
Leaks typically occur due to insufficient sealing on threaded connections. Shut off the water, disassemble the fitting, and apply fresh Teflon tape or pipe dope. Reassemble and test again. For persistent leaks, replace the threaded fitting entirely.
Maintenance Tips and Best Practices
Regular maintenance extends the life of your Orbit sprinkler valve and keeps your system running efficiently.
Seasonal Inspections
Inspect your valves at the start of each growing season. Look for cracks in the valve body, corrosion on fittings, and signs of water damage in the box. Replace aging components before they fail during peak usage.
Winterizing Your System
In freezing climates, blow out your irrigation lines with compressed air before winter. This prevents ice from cracking valves, pipes, and sprinkler heads. If you have an electric valve, remove the solenoid and store it indoors during extreme cold.
Cleaning Filters
Many Orbit valves include an internal filter that can clog with sediment. Disassemble the valve annually and rinse the filter under running water. Replace the filter if it appears torn or excessively worn.
Monitoring Water Usage
Keep track of your water bills and look for unexplained increases. A sudden spike may indicate a leaking valve or broken pipe. Early detection prevents costly water waste and landscape damage.
Common Mistakes to Avoid
Avoiding these pitfalls saves time, money, and frustration during installation.
Skipping Preparation
Rushing into installation without turning off water or power leads to dangerous situations. Always follow safety protocols and double-check that the system is depressurized before removing any components.
Incorrect Wiring
Mixing up common and zone wires causes the valve to malfunction. Take photos before disassembly and label wires clearly. When uncertain, consult your controller manual or contact a professional for guidance.
Over-Tightening Fittings
Excessive force can crack valve bodies or strip threads. Hand-tighten first, then use a wrench for a snug fit. If resistance is too high, back off slightly rather than forcing the connection.
Ignoring Pressure Ratings
Installing a valve that cannot handle your system pressure results in premature failure. Always verify that your valve’s PSI rating matches or exceeds your water pressure. Use pressure regulators when necessary to stay within safe limits.
Valve Comparison Table
Choosing the right valve depends on your system needs and budget. The table below compares key features of popular Orbit models.
| Model | Type | Flow Rate | Pressure Range | Features | Best For |
|---|---|---|---|---|---|
| Orbit 57000 | Electric | 15 GPM | 20-100 PSI | Solenoid, manual bleed | Standard residential zones |
| Orbit 57950 | Electric | 20 GPM | 20-100 PSI | High-flow, durable diaphragm | Large lawns, multiple heads |
| Orbit 57100 | Manual | 10 GPM | 20-100 PSI | Handwheel, no electricity | Isolation, backup systems |
| Orbit 57050 | Electric | 12 GPM | 20-100 PSI | Compact design, easy install | Small gardens, tight spaces |
Frequently Asked Questions
Can I install an Orbit sprinkler valve without plumbing experience?
Yes, most homeowners can install an Orbit sprinkler valve with basic tools and careful attention to instructions. The process involves turning off water, connecting pipes, and wiring the solenoid. Taking photos before disassembly helps with reassembly, and many DIYers complete the job successfully in a single afternoon.
How long does it take to install an Orbit sprinkler valve?
Installation typically takes one to three hours depending on your experience level and site conditions. If you need to excavate around the valve box or modify plumbing, the process may take longer. Having all tools and materials ready reduces delays and keeps the project moving efficiently.
What should I do if my new valve leaks after installation?
First, shut off the water and inspect all connection points. Tighten fittings slightly if they feel loose. If the leak persists, disassemble the connection, clean the threads, and apply fresh Teflon tape. For internal leaks, check the diaphragm and replace it if damaged.
Do I need to replace the entire valve or just the solenoid?
You can often replace just the solenoid if the valve body is in good condition. However, if the diaphragm is torn or the body is cracked, replacing the entire valve is more cost-effective in the long run. Solenoid-only replacements are suitable for minor electrical failures.
Can I use any sprinkler valve brand, or must I stick with Orbit?
While Orbit valves are designed to work seamlessly with Orbit controllers, many brands are interchangeable as long as the thread sizes and pressure ratings match. Always check compatibility specifications before purchasing. Mixing brands may void warranties or cause performance issues.
How do I know what size valve I need?
Check the inlet and outlet pipe diameters on your existing valve. Most residential systems use one-inch connections. You can also measure the threaded fittings directly. If replacing a valve, bring the old one to the store for an exact match.
What is the warranty on Orbit sprinkler valves?
Orbit typically offers a five-year limited warranty on most sprinkler valves. This covers manufacturing defects and premature failure under normal use. Keep your receipt and proof of purchase for warranty claims. Some retailers may offer extended protection plans.
Conclusion
Learning how to install an Orbit sprinkler valve empowers you to maintain your irrigation system with confidence and save on professional service costs. By following the steps outlined in this guide, you can replace faulty valves, expand your system, and ensure consistent water delivery to every corner of your landscape. Remember to plan carefully, use the right tools, and test thoroughly before declaring the job complete. With regular maintenance and attention to detail, your new Orbit valve will provide reliable service for years to come. Whether you are a seasoned DIYer or tackling this project for the first time, this guide gives you the knowledge and structure needed for a successful installation.