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Series RVS relief valves utilize a soft seat design for reliable venting of gases at set pressures from 1500 psi (103 bar) to 20000 psi (1378 bar). The operating temperature range is 32°F (0°C) to 400°F (204°C).

The soft seat design provides bubble tight sealing, repeatable pop-off, and reseat. Additionally, soft seat valves provide a higher cycle life than metal seat relief valves.

These precision valves are designed for pressure gas systems, where zero leakage is critical. They are not recommended for liquid nitrogen or liquid carbon dioxide, which produce gas at cryogenic temperatures upon relief.

Relief valves are designed to open proportionally to increasing pressure. Therefore, they are not recommended for applications requiring immediate full valve flow at set pressure (such as decompositions, polymerizations, etc.). Full flow of relief valve is defined at 10% over set pressure.

Options: Autoclave Engineers can supply various inlet and outlet connections on special order.

Caution:
1. AE relief valves are preset and factory sealed. Warranty is voided if seal is broken by customer.
2. Maximum system operating pressure should not exceed 90% of relief valve set pressure. Operating pressures in excess of this may cause weepage resulting in damage to the plug and seat.

Ordering Instructions: To permit prompt and correct responses to your order, we will require the following information: quantity, valve catalog number, service requirements (liquid, gas & vapor), set pressure (PSIG - bar), and service temperature range.

For prompt service, Autoclave stocks select products. Consult factory.
All general terms and conditions of sale, including limitations of our liability, apply to all products and services sold
Unit of Measure

Inlet Connection

 N/A SF562CX

Outlet Connection NPT

 N/A 3/4 in

Orifice Diameter

 N/A 0.156 in3.96 mm

Pressure Rating psi (bar) @100°F (38°C) - Minimum Setting

 N/A 10000 psi689.46 bar

Pressure Rating psi (bar) @100°F (38°C) - Maximum Setting

 N/A 20000 psi1378.93 bar

Pressure Rating psi (bar) @100°F (38°C) - Maximum Back Pressure

 N/A 500 psi34.47 bar

A - Height

 N/A 9.40 in238.76 mm

Tubing Engagement Depth

 N/A 0.81 in21.0 mm

N/A AE Relief Valves Features.

Materials: Standard models of Relief Valves are constructed of 316 stainless steel with selected componentsmade of anti-galling stainless steel material for optimum economy and ruggedness.

Connections: All models are designed with 9/16” Autoclave Medium Pressureinlet connections. The outlet connection on all models is a female 3/4” NPT. While adaptersto other sizes and connection types are available, they must be sized for specific flow requirements. SeeAdapter section.

Orifice Sizes: Orifice diameters range from .062 (1.57mm) to .312” (7.92mm).

Full Lift for Full Flow: These relief valves are designed to open as a function of increasing systempressure. Proper spring selection assures repeatability of opening, full lift and flow, and reseat pressures.

Reliability and Long Service Life: Materials engineering and stringent quality control procedures combineto assure the highest quality, reliability and service life. Each valve is preset and factory sealed to ensureproper valve operation.

High Set Pressure Capability: Unique seat construction plus over-the-nozzle guiding and proper selection ofmaterials permits standard set pressures to 75,000 psi. (5171 bar)

Dependable Shut-off: Series RVS relief valves are designed to provide bubble tightshut off of gases.

Fewer Parts, Ease of Maintenance: Engineered to perform with fewer basic components, both RVP andRVS valves facilitate minimum stocking of spare parts and ease of maintenance. The combined angle seat inthe RVP series eliminates the need for lapping in rework.

Special Requirements: Most models available with CE Mark. SOG option available upon request.