API Bellows Balance Type Spring Safety Valves

API balanced bellows spring loaded safety valve manufactured in accordance with the BPVC Ⅷ andAPI526 requirements.Suitable for ammonia ,R22,R134 refrigerant, etc,They open quickly, sealed performance is good and reliable. The bellows can eliminate the influence of back pressure on the valve performance,and protect spring from corrosion of the medium.Suitable temperature for;-46 ℃ ～ 150 ℃ ,As the over pressure protection device of refrigeration equipment,They Widely used in industrial refrigeration field.