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Reverse Osmosis Check Valve, Flow Restrictor Insert, Auto Shut off Valve

for 24, 36, 50, 75, 80, 100 GPD

Inexpensive insurance for your expensive membrane

FDA Grade Polypropylene

　 ● Up for Sale :

1 pc Check Valve, 1 pc Flow Restrictor Insert, 1 pc Auto Shut Off valve

1/8" NPT male thread elbow with 1/4" quick connect fitting

While this are a small valve and always been neglected, in fact, a working check valve can be the difference between a TOP-PERFORMING Reverse Osmosis System and a system that does NOT work.

It is never a bad idea to change your Check Valve and Flow Restrictor and Auto Shut off Valve when you change your membrane, in fact, Without a properly working check valve, the unit will not shut off properly when the tank is full, a great deal of water will be wasted, and eventually the membrane will be ruined. a few dollars spent can extend the life of your system, filters, membrane and save water dramatically.

Flow Restrictors (also known as Flow Controls or Capillaries) are required for all reverse osmosis systems. The Flow Restrictor must be properly sized to the RO membrane capacity. Flow Restrictors create pressure throughout the reverse osmosis membrane element and maintain a desired ratio of reject flow (to drain) and permeate (product) flow.

Auto shut off valve will automatically shut down system when tank pressure reaches 65% of incoming line pressure. Once Reverse Osmosis tank fills 2/3 of RO water. A faulty Auto Shut off Valve quietly drain thousands of liters of water into sewage without your consent.

Application

Fits standard under the counter RO Water system

Specifications

Check valve--1/8" NPT male thread elbow
Flow restrictor and Auto Shut Off Valve--1/4" quick connect fitting

Features

Prevents the flow of water back in to the RO membrane, ensuring the system pressurizes to works properly
Stainless Steel Valve
Required with use of auto shut off valve

Guideline for selecting an Flow Restrictor Insert

Size of Flow Restrictor Insert recommended as follow

RO Membrane Size (Gallons Per Day)	Use Flow Restrictor (Color)
24 GPD	Black
36 GPD	Yellow
50 GPD	Green
75 GPD	Blue
100 GPD	White

Many RO units have small insert style flow restrictors that are inserted into the 1/8" X 1/4" elbow adapterB that connects the drain tube to the membrane vessel.

Service Life

replace the Check Valve & Flow Restrictor each time you replace your reverse osmosis membrane (Recommended as a precaution)

FYI : Some other model may come with Inline Flow Restrictor

RO Membrane Size (Gallons Per Day)	Use Flow Restrictor (ML Per Minute)
36 GPD	420 ML
50 GPD	550 ML
75-100 GPD	850 ML

If you need an INLINE FLOW RESTRICTOR instead, please scroll to the following picture, and click the item you want, thanks!

Check Valve & Flow Restrictor Location

Additional Parts Recommendation

Check Valve and Flow Restrictor 36 GPD	Check Valve and Flow Restrictor 50 GPD

Check Valve & Flow Restrictor & Auto Shut OFF Valve	Check Valve & Flow Restrictor Insert 24-100 GPD