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Technical blog

Relief and safety

Relief and safety: 10 articles from the Valfonta technical blog.

All 44Pressure reducing valves 16Relief and safety 13Control and design 7Ejectors and injectors 3General guides 5

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38 articles

Relief and safetyPressure relief valve for water, steam, and gases: definition and operationA pressure relief valve discharges fluid when the pressure exceeds the set pressure, protecting the installation against overpressure that could rupture equipment and piping. · 10 min read

Relief and safetyPressure relief in mining slurry lines: abrasion resistance that lastsHow to specify abrasion-resistant pressure relief valves for mining slurry pipelines in the U.S. and Canada. Materials, sizing, and maintenance from Valfonta. · 13 min read

Relief and safetyHow to prevent “chattering” (vibration) in pressure relief valvesChattering in a pressure relief valve is the rapid, violent opening and closing of the plug against the seat, caused by an imbalance between the spring and the fluid pressure. · 13 min read

Relief and safetyWhat is the difference between a safety valve and a pressure relief valve?The difference between a safety valve and a pressure relief valve lies in how it opens and in the fluid: a safety valve pops fully open (100%) with gases and steam, while a relief valve opens gradually and proportionally with liquids. · 9 min read

Relief and safetyWhat are the main features of a pneumatic pressure relief valve?A pneumatic pressure relief valve protects compressed air and gas lines by automatically releasing the excess when the pressure exceeds the set pressure, and it closes on its own once the pressure returns to normal. · 5 min read

Relief and safetyHow to choose the right relief valve for your industrial systemA pressure relief valve is chosen according to the fluid, the working pressure range, the temperature, the materials, the connections, and the applicable regulations, such as PED 2014/68/EU and, where applicable, ATEX. · 10 min read

Relief and safetyDiscover the Valfonta Model S3 hydraulic pressure relief valveThe Valfonta S3 hydraulic pressure relief valve holds the set pressure upstream and opens gradually when the inlet pressure exceeds the set value. · 5 min read

Relief and safetyValfonta pressure relief valves for fire protectionA fire protection pressure relief valve prevents overpressure in the network when the pump runs at low flow or overspeeds, and returns the excess flow to the suction side or the tank. · 7 min read

Relief and safetyFeatures of the S1 and S2 self-regulating excess pressure valvesA self-regulating excess pressure valve stays closed while the inlet pressure is below the set pressure and opens proportionally when it is exceeded, discharging the excess flow to a return line, a tank, or a lower-pressure area. · 9 min read

Relief and safetyHow does an adjustable pressure relief valve work, and what are its applications?An adjustable pressure relief valve keeps the discharge closed with a plug and a calibrated spring, and opens when the pressure exceeds the value set on the spring, which is adjustable with a screw. · 5 min read

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Val Fonta, S.L. · C/ Bronze 26, 08915 Badalona (Barcelona)

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VALFONTA has been a beneficiary of the European Regional Development Fund, whose objective is to improve the use and quality of, and access to, information and communication technologies, and thanks to which it has been able to implement a production and plant control system (MES system). This action took place during 2022. To this end, it has had the support of the Industria 4.0 program of the Barcelona Chamber of Commerce

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VALFONTA has received a grant for the purchase of a 100% electric vehicle under the Efficient and Sustainable Mobility Incentive Program (MOVES III) of the Ministry for the Ecological Transition and the Demographic Challenge, through ICAEN.

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