Threaded Connection Safety Valve

A compact overpressure protection solution, offering flexible and efficient safety for small-bore piping and equipment integration.

Air Compressors
Heat Exchangers
OEM Equipment
Compact Units

CSV-515

Why Choose the CSV-515?

Easy Installation: The threaded connection design allows for simple and fast installation, especially suitable for small-bore piping systems, reducing installation costs and time.
Space-Saving: A compact structural design occupies minimal space, making it easy to integrate into space-constrained equipment and offering flexible layout options.
Flexible Configuration: Available in a variety of orifice sizes to meet the protection needs of different discharge capacities, providing customized solutions for various applications.

MaterialEN-JS1049 (Ductile Iron)
1.4408 (Stainless Steel 316L)
Temperature-10°C to 350°C (-14°F to 662°F) for EN-JS1049 models 25941 and 25943
-10°C to 120°C (-14°F to 248°F) for EN-JS1049 model 25942 and 1.4408 model 55943
-60°C to 400°C (-76°F to 752°F) for 1.4408 model 55941
PressurePN 40 / Class 300 (40 bar / 300 PSI)
ConnectionScrewed male / screwed socket
NPS1/2″ x 3/4″, 3/4″ x 1″, 1″ x 1-1/4″, 1″ x 1-1/2″
DNG1/2″ x G3/4″, G3/4″ x G1″, G1″ x G1-1/4″, G1″ x G1-1/2″ (BSP thread sizes)
MediumSteam, aggressive gases, vapours and liquids

Key Features

  • Compact Overpressure Protection Solution
    Designed for reliable pressure relief in small-bore piping systems and compact industrial equipment.

  • Threaded Connection for Easy Installation
    Screwed male and screwed socket options allow fast and simple installation, reducing labor time and overall installation costs.

  • Space-Saving Design
    Compact structural configuration makes it ideal for OEM equipment, compressors, heat exchangers, and confined installations.

  • Flexible Orifice Configurations
    Available in multiple orifice sizes to accommodate different discharge capacities and system protection requirements.

  • Reliable Spring-Loaded Mechanism
    Ensures stable set pressure, accurate opening, and repeatable performance for dependable safety protection.

  • Durable Material Options
    Available in EN-JS1049 (Ductile Iron) and 1.4408 (Stainless Steel 316L) for strength and corrosion resistance.

  • Wide Temperature Capability
    Depending on material and model:

    • Up to 350°C for selected ductile iron models

    • Up to 400°C for stainless steel models

    • Standard models operating from -10°C to 120°C

  • High Pressure Rating
    Rated for PN40 / Class 300 (40 bar / 300 PSI).

  • Threaded End Connections (BSP Sizes)
    Available in common BSP thread combinations such as:
    G1/2″ × G3/4″, G3/4″ × G1″, G1″ × G1-1/4″, G1″ × G1-1/2″.

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

  • Ideal for Compact & OEM Applications
    Frequently used in compressors, heat exchangers, packaged units, and small pressure vessels.

  • Reliable Industrial Safety Protection
    Provides dependable overpressure protection in demanding industrial environments.

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