Backup gate valves are the unsung heroes of industrial and residential plumbing systems—ready to step in during emergencies, system upgrades, or unexpected failures. But even the highest-quality gate valve can degrade if stored or maintained improperly, leading to leaks, corrosion, or costly downtime when you need it most.
In this guide, we’ll walk you through proven steps to store and maintain backup gate valves, ensuring they perform reliably when called upon. We’ll also share tips for avoiding common storage mistakes, choosing durable valves (including trusted brands like Eagle), and extending their lifespan.
Why Proper Storage & Maintenance Matters for Backup Gate Valves
Gate valves control the flow of liquids (water, oil, chemicals) in pipelines by raising or lowering a wedge-shaped gate. Backup valves sit idle until needed, but prolonged inactivity can cause:
- Corrosion: Moisture in storage environments attacks metal components.
- Seal degradation: Rubber or plastic seals dry out, crack, or stick.
- Stiff operation: Lack of use causes moving parts (like stems or threads) to seize.
A poorly maintained backup valve might fail when you need it most—leading to costly repairs, environmental hazards (e.g., chemical spills), or operational delays.
Step 1: Proper Storage of Backup Gate Valves
Storing a gate valve isn’t as simple as tossing it in a corner. Follow these steps to protect it from damage:
1. Choose the Right Storage Environment
- Keep it dry: Moisture is the biggest enemy. Store valves in a climate-controlled area with humidity below 60% (use dehumidifiers or silica gel packs if needed).
- Avoid extreme temperatures: High heat (over 100°F/38°C) can warp seals; freezing temps (below 32°F/0°C) may crack metal. Ideal range: 50–80°F (10–27°C).
- Shield from chemicals: Keep valves away from corrosive fumes (e.g., chlorine, acids) or direct sunlight (UV rays degrade plastic parts).
2. Clean Thoroughly Before Storage
- Remove debris: Wipe the valve with a dry cloth to remove dirt, grease, or residue from its last use.
- Flush if needed: For valves that previously handled sticky or corrosive fluids (e.g., oil, wastewater), flush with a mild detergent solution, then rinse and dry completely.
- Lubricate moving parts: Apply a light coat of food-grade or silicone-based lubricant to the stem, threads, and gate (avoids rust during storage).
3. Seal and Protect Critical Components
- Cover openings: Use plastic caps or plugs to seal the valve’s inlet and outlet—preventing dust, insects, or moisture from entering.
- Wrap exposed metal: For valves with uncoated steel parts, wrap them in anti-corrosion paper or apply a thin layer of petroleum jelly.
4. Store in a Stress-Free Position
- Avoid pressure on the gate: Store valves in a vertical position (stem upright) to prevent the gate from sagging or warping. If horizontal storage is necessary, place supports under both ends to distribute weight evenly.
- Label clearly: Mark the valve with its size, material (e.g., cast iron, stainless steel), and last maintenance date—so you know what you’re working with when it’s time to install.
Step 2: Routine Maintenance for Backup Gate Valves
Even in storage, backup gate valves need periodic care to stay functional. Here’s how to keep them in top shape:
1. Quarterly Inspections
- Check for corrosion: Look for rust spots, pitting, or discoloration on metal surfaces. Address minor corrosion with a wire brush and rust inhibitor (e.g., WD-40 Specialist Corrosion Inhibitor).
- Test seal integrity: Gently press on rubber gaskets or O-rings—they should feel firm, not brittle or sticky. Replace any cracked or hardened seals.
- Inspect the stem: Ensure the stem turns smoothly (no grinding or resistance). If stiff, apply a small amount of lubricant (avoid over-lubricating, which attracts dust).
2. Annual Operational Testing
At least once a year, simulate real-world use to prevent seizing:
- Fully open and close the valve: Do this 3–5 times to work lubricant into moving parts and confirm smooth operation.
- Check for leaks: After testing, inspect the valve for drips (a sign of worn seals or damaged seats).
3. Replace Worn Components Proactively
- Seals and gaskets: Replace every 2–3 years (or sooner if exposed to harsh conditions). Brands like Eagle use high-quality EPDM or Viton seals that last 5+ years.
- Bolts and fasteners: Tighten loose bolts and replace rusted ones—corroded fasteners can weaken the valve’s structure.
Common Mistakes to Avoid
Mistake 1: Storing Valves in Wet or Dirty Areas
Solution: Invest in a dedicated storage cabinet or shelf—keep valves off the floor to avoid puddles or dust.
Mistake 2: Skipping Pre-Storage Cleaning
Solution: Even “clean” valves can trap residue (e.g., mineral deposits from water). A quick wipe prevents long-term damage.
Mistake 3: Ignoring Lubrication
Solution: Use a lubricant compatible with the valve’s materials (e.g., silicone for rubber seals, graphite for high-temperature valves).
Mistake 4: Storing Valves in a Bent or Compressed Position
Solution: Always store gate valves fully closed or fully open (never partially open, which strains the gate).
Choosing Reliable Backup Gate Valves: Why Eagle Stands Out
Not all gate valves are created equal—especially for long-term storage. Brands like Eagle design valves with durability in mind:
- Corrosion-resistant materials: Eagle’s stainless steel and epoxy-coated cast iron valves resist rust, even in humid or coastal environments.
- Premium seals: Their valves use UV-stabilized gaskets that stay flexible for years, even in sunlight.
- Tested durability: Eagle valves undergo pressure testing (up to 2000 PSI) and thermal cycling to ensure they perform after years of storage.
FAQ: Common Questions About Gate Valve Storage & Maintenance
Q: How long can I store a backup gate valve before it needs maintenance?
A: For most valves, annual inspections and testing are sufficient. High-use or harsh-environment valves (e.g., chemical plants) may need checks every 6 months.
Q: Can I store a gate valve outdoors?
A: Only if it’s sealed in a weatherproof case. Even then, extreme temperatures or humidity will shorten its lifespan—indoor storage is always better.
Q: My valve has surface rust. Can I still use it?
A: Yes, if the rust is minor. Remove it with a wire brush, apply a rust inhibitor, and test the valve for leaks before installation.
Q: Do I need to lubricate the gate itself, or just the stem?
A: Both. The gate (wedge) and its seat should get a light lubricant to prevent sticking during long storage.
Final Thoughts: Protect Your Investment
Backup gate valves are critical for system reliability—but they only work if properly stored and maintained. By following these steps, you’ll ensure your valves are ready when emergencies strike, saving time, money, and stress.
For valves built to last, consider trusted brands like Eagle—designed with storage and longevity in mind. With the right care, your backup gate valve will be a reliable partner for years to come.