FR-450 Flow Restrictor for RO Water Purifier | 450 ML | Drain Line Control

🔧 What is an FR-450 Flow Restrictor?

An FR-450 flow restrictor is installed in the RO reject (drain) line. Its function is to maintain proper back pressure on the RO membrane, which is essential for efficient TDS rejection and controlled wastewater flow.

Without a correct flow restrictor:

• Water wastage increases

• Membrane performance drops

• RO membrane lifespan reduces

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📐 Technical Specifications

• Model: FR-450

• Flow Rate: 450 ml/min (±10%)

• Usage: RO reject / drain line

• Material: Food-grade plastic

• Compatibility: Domestic RO systems (75–100 GPD membranes)

• Installation Type: Inline push-fit

• Direction: As marked by FLOW arrow

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⚙️ How FR-450 Improves RO Performance

• Maintains optimal membrane pressure

• Controls wastewater flow

• Improves TDS rejection

• Prevents membrane damage

• Balances purified vs reject water ratio

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🧪 Suitable Water Conditions

• Input TDS: Up to 2000 ppm

• Domestic borewell / municipal water

• Best for standard household RO systems

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🛠️ Installation Guide (Simple Steps)

1. Locate RO reject water pipe

2. Cut the pipe cleanly

3. Insert FR-450 with FLOW arrow facing drain

4. Ensure tight push-fit connection

5. Check for leaks after installation

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⚠️ Important Usage Notes

• Flow direction must match arrow marking

• Do NOT install in purified water line

• Replace if clogged or water recovery drops

• Incorrect FR size can cause membrane failure

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❓ Frequently Asked Questions

Does FR-450 reduce TDS?

No. The flow restrictor does not reduce TDS directly. It helps the RO membrane work efficiently, which results in better TDS rejection.

What happens if FR-450 is not used?

Without a flow restrictor, pressure drops, water wastage increases, and RO membrane life reduces significantly.

Is FR-450 suitable for all RO membranes?

FR-450 is ideal for 75–100 GPD membranes. Higher-capacity membranes require higher flow restrictor ratings.

Can this be reused after removal?

Yes, if not clogged. However, replacement is recommended during membrane servicing.

How often should FR-450 be replaced?

Typically every 12–18 months, or whenever RO performance degrades.

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🛒 Why Buy From The Price Challenge Store?

✔ Quality-checked RO components
✔ Accurate specifications (no mismatch)
✔ Seller support & guidance
✔ Fast dispatch & secure packing

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📦 Package Includes

• 1 × FR-450 Flow Restrictor