ETV-S7 - Relief Valve | Eska Valve

Relief Valve: A Fundamental Safeguard in
Natural Gas Systems

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ETV-S7  - Relief Valve: A Fundamental Safeguard in - 1
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ETV-S7

The ETV relief valve is an essential safety mechanism designed to prevent overpressurization in natural gas systems. When gas pressure surpasses predetermined safety thresholds, the relief valve activates to safely discharge excess gas, thereby mitigating potential hazards. Once the system pressure stabilizes within the safe range, the valve automatically closes, ensuring the continued safe and efficient operation of the system.


Advantages of the ETV S7 Relief Valve

Minimizes the risk of explosion and fire by stabilizing sudden pressure fluctuations in gas systems.

Enhances energy efficiency and prolongs the lifespan of the system.

Features a fully automatic operation, ensuring user-friendly and hassle-free functionality.

Serves as an ideal safety solution for residential, industrial, and commercial gas applications.


The ETV relief valve is a vital safety component that prevents overpressurization, thereby safeguarding against explosions, gas leaks, and equipment damage in gas systems. By promptly discharging excess gas when pressure imbalances occur, it ensures the system operates safely and automatically resets once equilibrium is restored. This dual function not only protects lives but also contributes to the long-term efficiency and durability of the system. Its broad applicability, from residential settings to industrial facilities, makes it an indispensable safety measure for all gas-powered systems.


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Feature Symbol Value
Design pressure/ Nominal Pressure PS-PN ETV-D1 PN:1bar PS:2 bar / ETV-S7 PN:7bar PS:20 bar
Lock-up pressure class SG '20
Accuracy class AC 2,5/5/10/20
Working pressure range Wd ETV-D1 / 20-1000 mbar
Working pressure range Wd ETV-S7 / 18-7000 mbar
Ambient temperature TS Standard version -20°C to +60°C LT version -40°C to +70°C
Connection Standart On request ETV-D1 Inlet-Outlet G 1” inline threaded, ETV-S7 Inlet-Outlet G 1” angle threaded, G 1/2" to G 2" moduler and flange connections