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Close-up of Senninger PRLV limit valve pressure regulator with 1-inch female NPT inlet and outlet, durable plastic body, preset pressure valve (40 psi variant)

Senninger PRLV Limit Valve Pressure Regulator 1in FIPT 40 psi

Brand: Senninger
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$32.80
$24.60
SKU PRLV40MF4F4FV
In Stock (86)

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The Senninger PRLV limit valve is a preset pressure regulator designed for inline irrigation systems. It keeps outlet pressure consistent despite inlet fluctuations, protects downstream components from excessive static pressure, and supports reliable coverage for drip and sprinkler applications.

  • Preset pressure options: Available in multiple setpoints (10–60 psi); this listing includes 40 psi preset variants suitable for low-pressure systems.
  • Flow capacity: Handles up to 18 GPM (4088 L/hr), making it suitable for solid-set and small lateral runs.
  • Inlet/outlet size: 1" female NPT inlet and outlet (also available in 3/4" configurations) for easy inline installation.
  • Pressure control: Limits downstream static pressure to no more than 15 psi (1.03 bar) above the regulated rating when closed or under no flow.
  • Durability and testing: 100% pressure tested with very low hysteresis and friction loss; recommended for outdoor irrigation use.
  • Installation and specs: Maximum inlet pressure 125 psi; requires minimum inlet pressure ~5 psi above the expected outlet to maintain setpoint.

Designed for reliable, low-maintenance performance, the PRLV protects emitters and micro-applicators from pressure surges and preserves uniform coverage. Use unions or compatible 1" F NPT fittings for straightforward service and replacement; a one-year warranty covers materials and workmanship.

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Frequently Asked Questions

What inlet and outlet sizes does this regulator use?
This PRLV model is available with 1" female NPT inlet and outlet; 3/4" options also exist for smaller lines.
How much flow can the PRLV handle?
PRLV regulators support flows up to 18 GPM (4088 L/hr), suitable for solid-set and small lateral runs.
Will this regulator prevent pressure spikes when valves close?
Yes. It limits static downstream pressure to no more than 15 psi above the regulated setpoint to protect downstream components.

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