ASCO Numatics recently introduced the 361 series of stainless steel pilot valves featuring a unique design that eliminates “sticking” problems in low cycle demand applications. These problems can occur in control valves installed in the pneumatic logic panels used to control safety monitoring systems in offshore oil and gas production facilities. The valve’s body is made entirely in 316L stainless steel and the Elgiloy and stainless steel springs are designed for corrosion resistance and severe service beyond 1 million cycles. The 361 series feature T-seal technology that resists the dormancy issues, and is offered in manually operated, air piloted, and solenoid piloted versions and can be configured as breathing and non-breathing. The non-breathing version isolates internal components from the atmosphere and is internally vented, preventing contaminants such as salt and dust from entering the valve and corroding the internal components. The 361 series ¼ in, 3-way and 316L stainless steel valves are ATEX and IECEx approved (Ex d) and can be fitted with an explosion proof (low power) operator for use in Zone 1 and 2 hazardous areas.
