Check Valve
The PPIV quick-connect check valve is dedicated one-way valve for water purification made of food-grade POM. With straight-through push-in structure and built-in one-way core, it allows water flow only in the direction marked by the arrow to prevent backflow.
- Product Introduction
This check valve is available in two common specifications: 1/4 inch and 3/8 inch, which match the mainstream pipeline sizes of domestic RO water purifiers and pre-filter systems.
It is widely installed in RO machine waste water lines, pre-filter outlet pipelines and water dispenser circuits, preventing backflow from causing membrane damage, water hammer or cross-contamination, thus improving the reliability and safety of the water treatment system.
Performance Paramete
|
Material |
Tube Compatibility |
O-Ring |
Fluid |
Burst pressure |
Working Pressure |
Temperature |
|
POM |
Fit PE hose |
NBR |
Water |
≥2.76MPa |
0.1-1.2MPa |
≤40℃ |
Note:
1.The test temperature is 5-25℃;
2. Not suitable for corrosive media such as strong acid and alkali.
Product Dimensions: PPIV Check Valve
(Custom sizes are available upon request. Please contact us for specifications not listed here.)
|
Type |
Model |
|
|
Tube (Inch) |
Tube (Inch) |
|
|
PPIV0404 |
1/4 |
1/4 |
|
PPIV0606 |
3/8 |
3/8 |
Packing：
1.PE bag and double corrugated carton packaging;
2.Carton size：35*25*35cm;
3.Packaging quantity differs among models. Please check with our customer service.
Key Features
Clear arrow mark on the body indicates flow direction for error-free installation.
Tool-free quick plug for fast installation and convenient later maintenance.
Dual common specifications: 1/4 inch and 3/8 inch to match mainstream domestic water purifier pipeline sizes.
Reliable backflow prevention protects RO membranes and equipment from damage caused by reverse water flow.
Daily Maintenance & Care
- Cut tubing cleanly and deburr before insertion.
- Tighten the thread moderately; avoid over-tightening.
- Inspect for leaks after pressure/temperature changes.
- Use only with non-corrosive liquids.
- When disassembling, press release ring evenly and pull tube straight out.
Frequently Asked Questions
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