Excellent product
"Works great"
ASV-4000Q RO Automatic Shut Off Valve 1/4-Inch Quick Connect
Q&As
ASV-4000Q RO Automatic Shut Off Valve 1/4-Inch Quick Connect
Q&As
Part Number:
ASV-4000Q
Automatic shut off valve reduces water waste by stopping RO flow when the storage tank is full.
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IN STOCK
Description
This device is designed to save water that your RO system would otherwise send to the drain when the storage tank fills up. Normally RO systems continue sending rinse water to the drain when the tank is full, but the ASV-4000Q stops this by shutting off incoming water at a certain pressure. Outfitted with quick connect fittings.
Overall rating: 4.3333335 / 5 from 6 reviews.
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Reviews
Excellent product
"Works great"
Lamp is defective.
"Lamp is not tested before shipped. Need Return sticker for shipping. Please send a replacement lamp. Thank you. Noel 917-709-5929"
Worked perfectly
"Worked perfectly"
Automatic Shut Off Valve
"I installed this valve to replace the original and it works great. The water now stops flowing when the tank is full like its supposed to."
It works very well (as
"It works very well (as described) and was easy to install."
Works as designed
"Works like it should."
Q&A
Q:
What does the ASV-4000Q automatic shutoff valve do?
A:
It stops feed water to a compatible RO system when storage-tank pressure rises, reducing unnecessary drain flow after the tank fills.
Q:
What tubing size does it use?
A:
It uses 1/4-inch quick-connect ports. Match the tubing outside diameter and the port labels before installation.
Q:
How do I identify the high- and low-pressure ports?
A:
Follow the IN/OUT and tank/membrane markings or the supplied diagram; incorrect tubing routes can prevent shutoff.
Q:
Does it replace a check valve?
A:
No. A properly functioning membrane check valve is normally required for the automatic shutoff valve to sense tank backpressure correctly.
Q:
Why might an RO system keep running after the tank is full?
A:
Possible causes include a failed or misplumbed shutoff valve, leaking check valve, low feed pressure, tank-pressure problems, or a downstream leak.
Q:
What should I check after replacing it?
A:
Confirm all four tubes are fully seated, pressurize the system, check for leaks, and verify that feed and drain flow stop after the tank fills.
