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Weathermatic 910 Automatic Sprinkler Drain Valve - 1/2" IPS

Brand: Weathermatic
Save 27%
$24.55
$17.80
SKU 910

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The Weathermatic 910 Automatic Sprinkler Drain Valve delivers dependable, hands-free drainage for irrigation lines when system pressure drops. Its compact, spring-loaded design clears low points to help protect pipes and sprinkler components during winterization and routine system shutdowns.

  • Automatic operation: Spring-actuated valve opens when pressure falls to drain low sections of the system.
  • Reliable drainage: Bronze spring opens against a 6' (1.8 m) head of water to ensure effective flow in low areas.
  • Clog protection: Fine intake and drain screens reduce debris entry and help maintain consistent drainage.
  • Connection: 1/2" male IPS connection fits standard 1/2" pipe fittings for easy installation.
  • Compact brass construction: Small, corrosion-resistant design made for outdoor irrigation use.
  • Application: Intended for intermittent drainage and winterization of sprinkler systems; not for constant-pressurized lines.

Install the 910 at system low points, drain lines, or at the end of lateral runs. Periodic inspection of the screens and valve operation helps ensure long service life; if debris accumulates, remove the valve, rinse screens and reinstall. For installations that require continuous pressurization, choose a valve rated for uninterrupted line pressure.

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Frequently Asked Questions

What connection size does the Weathermatic 910 use?
The 910 uses a 1/2" male IPS connection and fits standard 1/2" irrigation pipe fittings.
How does this drain valve operate in a sprinkler system?
A bronze spring holds the valve closed under pressure and opens when pressure drops to automatically drain low points.
Can the 910 remain under continuous line pressure?
No. The 910 is not recommended for pipelines under continuous pressure; use for intermittent drainage only.
How should I maintain the valve to prevent clogging?
Inspect and clean the intake and drain screens periodically; rinse debris and reinstall to maintain reliable drainage.