Neptune 5027K51 RV-C20 Pressure Relief Valve RV-316
The Neptune 5027K51 RV-C20 Pressure Relief Valve RV-316 is engineered to safeguard piping systems by preventing overpressure conditions. This valve is designed for liquid service applications and offers reliable performance across a range of operating pressures.
Key Features
- Material Construction: All wetted parts are made from 316 stainless steel (316SS) or Carpenter 20 (C-20), ensuring excellent corrosion resistance and durability.
 - Pressure Range: Capable of handling pressures from 30 to 2,000 psi (2.1 to 137.9 bar), accommodating various system requirements.
 - Consistent Relief Capacity: Incorporates a unique spring guide that ensures proper spring loading, providing consistent relief capacity.
 - Adjustable Relief Setting: The relief pressure setting can be easily adjusted by removing the top cap screw and locking set screw, inserting an appropriate Allen wrench into the opening, and adjusting the spring to the desired pressure.
 - Self-Cleaning Mechanism: Features a self-cleaning ball check and seat design, reducing maintenance needs and enhancing operational reliability.
 
Specifications
| Model | Pressure Range (psi) | Capacity (GPM) | Material of Construction | 
|---|---|---|---|
| RV-316-1 | 30 to 100 | 3.0 | 316 Stainless Steel | 
| RV-316-2 | 101 to 400 | 4.0 | 316 Stainless Steel | 
| RV-316-3 | 401 to 1,000 | 4.0 | 316 Stainless Steel | 
| RV-316-4 | 1,001 to 2,000 | 6.0 | 316 Stainless Steel | 
| RV-C20-1 | 30 to 100 | 3.0 | Carpenter 20 | 
| RV-C20-2 | 101 to 400 | 4.0 | Carpenter 20 | 
Installation and Maintenance
The valve is designed for straightforward installation with 1/2″ NPT inlet and outlet connections. Its self-cleaning ball check and seat minimize maintenance requirements, while the easily adjustable relief setting allows for quick pressure adjustments to meet specific system needs.
Applications
Ideal for use in chemical processing, water treatment, and other industrial applications where precise pressure control is essential to protect equipment and ensure safe operation.
By integrating the Neptune 5027K51 RV-C20 Pressure Relief Valve RV-316 into your system, you can enhance safety, reliability, and performance, effectively managing pressure to prevent potential system damage.



















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