Overview
The Stainless Steel CO₂ Check Valve is an essential safety component for pressurized CO₂ systems. Made from corrosion-resistant stainless steel, it ensures one-way flow and protects your regulator, solenoid, and diffuser from water back-siphoning during power outages or system shutdowns.
Key Features
- Corrosion-resistant stainless steel: Durable and long-lasting compared to plastic alternatives .
- One-way valve design: Prevents aquarium water from flowing back into your CO₂ equipment when pressure drops .
- Standard 4 mm ID / 6 mm OD compatibility: Fits most CO₂ lines for easy integration .
- High-pressure rated: Designed for pressurized systems—air pumps are not suitable .
- Compact & easy to install: Inline unit with flow-direction arrow; install near the tank rim .
Specifications
| Material | Stainless steel housing with internal spring |
|---|---|
| Tubing fit | 4 mm ID / 6 mm OD CO₂ tubing |
| Dimensions | Approx. 40 mm length × 10 mm diameter |
| Flow rate | One-way, prevents reverse flow when CO₂ is off |
Why Choose Stainless Steel?
- Superior durability: Outlasts plastic versions under constant pressure and humidity .
- Protects equipment: Stops water from damaging delicate components like regulators and bubble counters .
- Maintains pressure: Holds 20–30 psi in the line even when CO₂ is off, preventing delays on restart .
- Simple installation: Direction arrow ensures correct placement; fits standard tubing effortlessly .
Usage & Maintenance
- Cut your CO₂ line outside the tank rim.
- Insert valve inline with arrow pointing toward the aquarium .
- Secure the tubing and run CO₂ as usual.
- Check periodically—stainless steel won’t degrade, but spring mechanism may benefit from occasional checks.
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