ETV D1 - Relief Valve | Eska Valve

Relief Valve: A Fundamental
Safeguard in Natural Gas Systems

ETV D1  - Relief Valve: A Fundamental  - 1
ETV D1  - Relief Valve: A Fundamental  - 2
ETV D1   - Relief Valve: A Fundamental  - 1
ETV D1   - Relief Valve: A Fundamental  - 2

ETV D1

The ETV relief valve is a crucial safety device designed to prevent overpressurization in natural gas systems. When the gas pressure within the system surpasses the predetermined safety limits, the relief valve is triggered, allowing the controlled release of excess gas to prevent hazardous conditions. Once the system pressure returns to a safe level, the valve automatically shuts off, ensuring the system’s continued stability and safe operation.


Advantages of the ETV D1 Relief Valve

Minimizes the risk of explosions and fire by regulating sudden pressure fluctuations in gas systems.

Enhances energy efficiency and extends the operational lifespan of the system.

Features a fully automatic operation, providing ease of use and reliability.

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


The ETV relief valve is a vital safety mechanism that mitigates the risks of explosions, gas leaks, and equipment damage by preventing overpressurization in gas systems. In the event of a pressure imbalance, it facilitates the safe discharge of excess gas in a controlled manner and subsequently resets automatically. This dual functionality ensures both life safety and the long-term efficiency of the system. Its extensive applicability across residential, commercial, and industrial settings makes it an indispensable component in 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