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Step 6 · Secure the Adjustment and Finalize

Once you have successfully set the water pressure to your desired level (50-60 PSI), you must lock in the setting. Use the flathead screwdriver to hold the adjustment screw perfectly still so it doesn't turn. While holding it, use the adjustable wrench to tighten the locknut by turning it CLOCKWISE until it is snug against the bell housing of the valve. Do not over-tighten, but ensure it is secure enough to prevent the adjustment screw from vibrating or moving over time. Once tightened, remove the pressure gauge and close the faucet.

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Step 6 · Secure the Adjustment and Finalize

Once you have successfully set the water pressure to your desired level (50-60 PSI), you must lock in the setting. Use the flathead screwdriver to hold the adjustment screw perfectly still so it doesn't turn. While holding it, use the adjustable wrench to tighten the locknut by turning it CLOCKWISE until it is snug against the bell housing of the valve. Do not over-tighten, but ensure it is secure enough to prevent the adjustment screw from vibrating or moving over time. Once tightened, remove the pressure gauge and close the faucet.

Tools and Materials

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How to Adjust a Water Pressure Reducing Valve (PRV)

Step 6 of 6·5 min left

Preparation and Tool Gathering
5 mins3 itemsBeginner
Test Initial Water Pressure
5 mins2 itemsBeginner
Loosen the PRV Locknut
5 mins1 itemsIntermediate
Adjust the Pressure Screw
5 mins1 itemsIntermediate
Test and Re-adjust
10 mins2 itemsIntermediate
6
Secure the Adjustment and Finalize
5 mins3 itemsIntermediate
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