Safety valves

Safety valves play a vital role in protecting equipment and personnel from dangerous overpressure in industrial systems. When pressure exceeds the permitted limit, the valve opens automatically to release excess pressure – a critical safeguard in applications like steam boilers, pressure vessels, pipelines, and heat exchangers.
At Insatech, we supply Carraro safety valves tailored to various media, pressure ranges, and industry standards – trusted for reliability in demanding environments.

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The 1900/P Series of safety valves from Consolidated is designed to easily adapt to a wide variety of application requirements and certified for gas, liquid and steam media. The flexible design allows you to easily replace parts and change the valve to other versions, such as converting from conventionak ti bellows design.

Carraro safety valve type CS 30-31 in compact design. Type 30 with open spring housing for air, steam and non-hazardous gases and type 31 with closed spring housing for liquids, hazardous vapors and gases. Can be supplied with cap or handle.

The proportional safety valve type CS 35 gradually opens from the set pressure to full lift at 10-20 % overpressure and is recommended for viscous liquids such as oil. The insert is provided with holes that guide the cone proportionally and thereby limits the capacity relative to the overpressure. The maintenance of the valve is very simple. Can only be supplied with cap / hood.

Carraro - type CS 71 is a safety valve for pressure equalization from Carraro type CS 71 for steam, gas and liquids. Can only be supplied with cap / hood.

The AIRMATIC electro-pneumatic safety valve is based on the CSV models from Carraro. The valve is fitted with a pneumatic servomotor, which is activated via a switch. This results in a controlled modulating opening / closing of the safety valve.

Carraro safety valve type CS 50/80/91 in compact design. Type CS 50 and CS 80 with open spring housing for air, steam and non-hazardous gases and type CS 91 with closed spring housing for liquids, hazardous vapors and gases. Can be supplied with cap / hood or handle.

Safety valves steam and gases. Type CSV 55 is made of cast iron and with open spring housing. Type CSV 88 is made of cast steel, also with open spring housing. Both types are suitable for steam and non-hazardous gas applications. Can be supplied with cap / hood or handle.

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What Is a Safety Valve?

A safety valve is a mechanical device that automatically opens when pressure in a closed system exceeds a pre-set maximum. This prevents potentially hazardous overpressure scenarios and is considered a critical component in any pressure-bearing installation.

Safety Valve vs. Pressure Relief Valve

While the terms are often used interchangeably, there are important technical differences:

Safety Valves
Designed for steam or gas systems. They open rapidly and fully to release pressure immediately, especially in high-temperature or high-risk environments.
Pressure Relief Valves
Typically used in liquid systems. They open gradually to maintain safe pressure levels and avoid system damage.

Types of Safety Valves

Spring-Loaded Safety Valves
The most common type. A preloaded spring keeps the valve closed until the system pressure exceeds the spring force. Simple and reliable for general-purpose applications.
Pilot-Operated Safety Valves
Controlled by an external pilot valve, allowing for precise operation, high capacity, and tight sealing at lower set pressures. Ideal for critical process systems.
Safety Valves for Steam, Water, and Gas

- Steam Safety Valves: High-temperature resistant with full-lift capability
- Water Safety Valves: Used in heating circuits, heat exchangers, and hot water tanks
- Gas Safety Valves: Suitable for compressed air, nitrogen, oxygen, and other industrial gases

Stainless Steel Safety Valves
Resistant to corrosion, ideal for harsh environments like offshore and the oil and gas industry.

How to Select the Right Safety Valve

Choosing the correct valve ensures both operational efficiency and safety:

Know Your Pressure and Temperature
Select a valve rated for your system’s maximum working pressure and temperature.
Match the Valve to the Medium
Whether you are working with gas, liquid, or steam, choose the right materials and seals.
Check Certifications
Ensure the valve complies with PED, ATEX, or food-grade standards relevant to your industry.
Plan for Maintenance
Safety valves experience wear over time. Regular service is essential

Need Help Selecting a Safety Valve?

Whether you’re working in the marine, energy, or oil and gas sector, our valve specialists can help you size, configure, and choose the right safety valve for your system. Contact us today for technical support or guidance on selecting a Carraro pressure safety valve that meets your needs.