Orbit Underground Valve Accessories: Which Valves Do You Need?

Selecting the right underground valve is the cornerstone of an efficient irrigation system. Valves control water flow to different zones, ensuring your lawn and garden receive the precise amount of water without waste. Orbit offers a comprehensive range of underground valve accessories, from durable solenoid valves to easy-to-install manifolds and adapters, making it simple to build or upgrade your system.

This buying guide walks you through the different types of Orbit underground valves, essential accessories you’ll need for installation and maintenance, and key factors to consider when choosing the right valve for your property. Whether you’re a DIY homeowner or a professional installer, understanding these components will save you time, money, and frustration.

Understanding Underground Valve Types

Orbit underground valves fall into three main categories: solenoid (electric) valves, manual valves, and anti-siphon valves. Solenoid valves are the heart of an automatic irrigation system, activated by a timer or smart controller. They open and close electronically, allowing you to schedule watering without being present. Manual valves, on the other hand, are operated by hand and are ideal for simple systems or backup control. Anti-siphon valves include a built-in backflow preventer, which is often required by local codes to protect your drinking water from contamination.

When selecting a solenoid valve, consider the voltage (most Orbit valves are 24 VAC) and the flow rate required by your sprinklers. Orbit valves come in sizes ranging from 3/4 inch to 1.5 inches, accommodating different zone capacities. For most residential lawns, a 1-inch valve provides a good balance of flow and pressure. Always check your system’s flow rate and dynamic pressure to avoid undersizing or oversizing the valve.

• Tip: Use a valve with a flow control knob to adjust water output for each zone, especially useful for sloped areas or mixed plantings.

Key Valve Accessories for Installation and Maintenance

To install and maintain your Orbit underground valves, you’ll need a few key accessories. Manifolds simplify grouping multiple valves in one location, reducing trenching and making future repairs easier. Adapters like the 3/4-in. FHT X 1/2-in. Blu-Lock Adapter allow you to connect valves to Blu-Lock tubing without clamps or glue, saving installation time. For rigid connections, a 1" MPT x Close PVC Riser provides a sturdy base for mounting valves above or below ground.

Other essential accessories include wire connectors for splicing valve wires to the controller, grease caps to protect electrical connections from moisture, and bleed screws for manual operation of solenoid valves. Orbit also offers repair kits with diaphragms and seals, so you can quickly fix a leaking valve without replacing the entire unit. Keeping a few spare parts on hand ensures your system stays running through the peak watering season.

• Must-have: A valve box to protect underground valves from dirt and root intrusion while providing easy access for servicing.

How to Choose the Right Valve for Your System

Start by mapping your irrigation zones and calculating the total flow rate (in gallons per minute) and operating pressure for each zone. Match the valve size to the zone’s demand: a 3/4-inch valve handles up to about 6 GPM, a 1-inch valve up to 15 GPM, and larger valves for high-flow applications. Also consider the valve’s pressure rating – most Orbit valves are rated for up to 150 PSI, which covers typical residential systems.

Next, decide whether you need a manual or automatic valve. Automatic solenoid valves work with timers like the B-hyve line for smart watering. If you’re retrofitting an existing system, check the valve port configuration (globe or angle pattern) to match your pipe layout. Finally, verify that all components are compatible with your pipe material – Orbit’s Blu-Lock and Drip-Lock systems offer push-to-connect convenience for polyethylene pipe, while threaded PVC risers work for rigid installations.

• Checklist: 1. Measure zone flow and pressure. 2. Choose valve size and type. 3. Select compatible fittings. 4. Plan for electrical wiring. 5. Install a valve box for protection.

Installation Tips and Common Pitfalls

Proper installation extends the life of your valves. Always install a valve at least 6 inches below grade in a gravel-lined valve box to prevent water pooling. Use a small layer of gravel at the bottom for drainage. When connecting Blu-Lock fittings, ensure the pipe is cut square and fully inserted until it clicks – the 3/4-in. FHT X 1/2-in. Blu-Lock Adapter makes a reliable seal without tools. For threaded connections, apply PTFE tape to threads to prevent leaks.

Common mistakes include burying wires too shallow (risk of damage from tools), failing to install a master valve at the water source, and not labeling wires at both ends. Take time to label each valve wire with the zone number using waterproof tags. This simple step makes troubleshooting much easier. Also, test each valve manually before covering the valve box to ensure proper operation and no leaks.

• Pro tip: Install a pressure regulator upstream if your static pressure exceeds 80 PSI to protect valves and sprinklers from damage.

Choosing the right Orbit underground valve and accessories ensures a dependable irrigation system that delivers water precisely where needed. For a reliable and tool-free connection to your valve manifold or timer, the 3/4-in. FHT X 1/2-in. Blu-Lock Adapter simplifies installation and reduces leak points. Explore our full range of underground valve accessories to build a system that meets your landscape’s unique demands.