This company has expanded its product line to include a range of bellows seal valves, including the BSA (photo) and A3S isolation valves. These valves are engineered to maintain plant safety and save energy by totally eliminating stem seal leaks, which will help oil, gas, petrochemical, pharmaceutical, food and beverage manufacturers save energy and ensure operator and plant safety, says the company. The BSA valve range is a flexible, user-friendly isolation solution that includes a throttling plug that allows manual regulation to adjust line pressure and flow. It can also be used as a basic control valve or a substitute for “bypass” lines. The high-integrity A3S bellows sealed valve is suitable for use under higher-pressure steam, gas and liquid applications, since it is designed to ASME Class 800. — Spirax Sarco, Inc., Blythewood, S.C.