Reliable fire protection is essential for industrial valves in the measurement and control technology because they are jointly responsible for safety in sensitive applications such as oil-and-gas installations or in the chemical and petrochemical industry. Valves and manifolds must guarantee a reliable, safe shut-off in case of fire.
The E Series of valves and manifolds from AS-Schneider received the Fire Safe Approval, meaning the valves offer a safe, reliable shut-off in case of fire. The valves were tested and certified by the TÜV SÜD as leak-free under extreme test conditions.
The test ensures that the valves demonstrate minimal leakage and can be operated in case of fire. During the testing, they are first placed under pressure with water and must withstand a fire for 30 minutes. Then the examiners cool down the fittings for 10 minutes to below 212°F (100°C). Throughout the test, the leakage of the valve seat is as well as to the outside is measured. Strict limits are applied. After this, the valve must be able to be fully opened at least once.
The examiners of the E Series valves and manifolds could not identify any leakage during testing, says AS-Schneider, and there were no limitations in the operability of the valves after the testing. They could easily be repeatedly opened and closed.
AS-Schneider manufactures the industrial valves and manifolds exclusively from stainless steel. Pure graphite gaskets are used for the outside sealing. This ensures that the valves function under extreme conditions.