Check Valve

The GH-GOODS Check Valve is a high-performance one-way safety valve designed to safeguard your aquarium air pumps, CO2 systems, and filtration setups. By allowing airflow in only one direction, it prevents dangerous backflow of water into sensitive equipment, ensuring uninterrupted operation and longevity of your devices.

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Key Features:

✔ Reliable One-Way Protection – Permits air/CO2 flow in one direction while completely blocking reverse flow
✔ Durable Construction – Made from chemical-resistant polymers and stainless steel spring for long service life
✔ Universal Compatibility – Works with 4mm/5mm/6mm tubing (standard aquarium sizes)
✔ Easy Installation – Inline design connects seamlessly to air pumps, CO2 diffusers, and protein skimmers
✔ Low Crack Pressure – Opens easily with minimal pressure (0.02-0.05 MPa) for energy-efficient operation
✔ Clear Housing – Allows visual confirmation of airflow direction and valve operation

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Critical Applications:

• CO2 Systems: Prevents water backflow into CO2 regulators and solenoid valves

• Air Pumps: Stops water siphoning into pumps during power outages

• Filtration: Protects canister filters from reverse flow contamination

• Medical & Lab Use: Suitable for oxygen systems and analytical equipment

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Technical Specifications:

• Material: PP (Polypropylene) body, silicone seal, stainless steel spring

• Operating Pressure: 0-0.1 MPa

• Temperature Range: -10°C to +80°C

• Flow Direction: Clearly marked with arrow indicator

• Connection Type: Barbed fittings for secure tubing attachment

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Why Choose GH-GOODS Check Valve?

Unlike cheap plastic valves that fail under pressure, our precision-engineered valve features:

• Military-grade spring for consistent performance

• 100% air-tight seal when closed

• Smooth inner bore to minimize flow restriction

• UV-resistant materials for outdoor use

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Package Includes:

• 1× GH-GOODS Check Valve

• Installation guide

Installation Tips:

1. Install vertically with arrow pointing AWAY from equipment

2. Place between pump/diffuser and aquarium

3. Replace every 2 years for optimal performance