Description
The Conbraco 10-614-25 (also known under the Apollo RVW61 Series) is a high-capacity, ASME Section IV certified safety relief valve built to protect hot-water heating systems from overpressure. With a rugged bronze body, diaphragm-isolated chamber, and oversized outlet, this valve ensures reliable performance when pressure spikes occur.
Key Features
- Set Pressure: Factory-rated for 125 PSI, with a wide adjustable range from 15 to 160 psig.
- Connections: ¾″ FNPT inlet × 1″ FNPT outlet, compatible with standard hydronic plumbing.
- High Capacity Rating: Designed for very high BTU output (up to ~3,096,000 BTU/hr), making it ideal for large or heavy-duty boiler systems.
- Corrosion-Resistant Construction: Bronze body (ASTM B584) helps resist corrosion and ensures durability.
- Silicone Seat: Provides a tight seal under pressure while allowing fast, reliable venting when required.
- Diaphragm-Isolated Spring Chamber: The spring is protected from water exposure by a fabric-reinforced diaphragm, improving valve lifespan.
- Elevated Seat Design: Helps drain water away from the seat area to reduce wear and maintain performance.
- Wide Temperature Rating: Rated for service at temperatures up to 250°F (121°C).







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