API 526 Full-Nozzle Safety Valve

CSV-580

A top-tier protection solution built for the most severe conditions, compliant with API 526, the ultimate choice for the oil & gas and petrochemical industries.

Oil & Gas
Petrochemical Plants
Offshore Platforms
High-Pressure Processes

CSV-580

Why Choose the CSV-580?

Authoritative Certificcation: Dimensions, materials, and performance are in full compliance with the API 526 standard, ensuring wide recognition and application in the global oil and gas industry.
Excellent Durability: The full-nozzle design completely isolates the valve body from the media, effectively protecting it from corrosion, significantly extending service life, and reducing replacement frequency.
Stable & Reliable: Specifically designed for severe back-pressure and changing service conditions, it offers stable opening and closing characteristics, providing reliable pressure relief even under extreme conditions.

Material	SA216 WCC (Carbon Steel) SA217 WC6 (Low Alloy Steel) SA351 CF8M (Stainless Steel 316L)
Temperature	-60°C to 450°C (-76°F to 842°F)
Pressure	PN 10 / Class 150 (10 bar / 150 PSI) PN 20 / Class 300 (20 bar / 300 PSI) PN 40 / Class 600 (40 bar / 600 PSI)
Connection	Flange
NPS	1″ x 2″, 1-1/2″ x 2″, 1-1/2″ x 3″, 2″ x 3″, 3″ x 4″, 4″ x 6″, 6″ x 8″, 6″ x 10″, 8″ x 10″
DN	25 x 50, 40 x 50, 40 x 80, 50 x 80, 80 x 100, 100 x 150, 150 x 200, 150 x 250, 200 x 250
Medium	Steam, neutral gases, vapours and liquids

Key Features

API 526 Standard Compliance
Designed and manufactured in full accordance with API 526, ensuring dimensional interchangeability and global acceptance in oil & gas and petrochemical industries.

Full-Nozzle Construction
The full-nozzle design isolates the valve body from process media, significantly reducing corrosion, erosion, and body wear — extending service life and minimizing maintenance costs.

Stable Performance Under Back Pressure
Engineered for high back-pressure and fluctuating service conditions, delivering consistent opening and reseating performance in severe-duty applications.

Heavy-Duty Industrial Materials
Available body materials:

SA216 WCC (Carbon Steel)

SA217 WC6 (Low Alloy Steel)

SA351 CF8M (Stainless Steel 316)

Wide Operating Temperature Range
Suitable for temperatures from -60°C to 450°C (-76°F to 842°F).

ASME Pressure Classes

Class 150 (PN10 equivalent)

Class 300 (PN20 equivalent)

Class 600 (PN40 equivalent)

Flanged Connection
Standard flanged ends for integration into industrial piping systems.

Multiple Inlet/Outlet Size Combinations
Typical combinations include:
1″ × 2″, 1-1/2″ × 2″, 1-1/2″ × 3″, 2″ × 3″, 3″ × 4″, 4″ × 6″, 6″ × 8″, 6″ × 10″, 8″ × 10″, etc.

Suitable Media
Designed for steam, neutral gases, vapors, and liquid systems.

Ideal for Severe Industrial Applications

Oil & Gas Processing

Petrochemical Plants

Offshore Platforms

High-Pressure Refining Systems

Long-Term Reliability
Built for continuous protection of pressure vessels and critical process equipment under extreme industrial conditions.