Aquatrol''s Series 560/570 valve line is a high capacity safety valve used for boilers, piping linesvessel protection. Designedengineered for heavy-duty industrial use. ASME approvedNational Board flow-rated for capacity.

Usages:
• Series 560 – Use for ASME Section I applications to pressure ratings of 250 PSI. VNB stamped for fired vessels. Boilers, or most areas where steam safety valves are required.

• Series 570 – Use for ASME Section VIII applications to pressure ratings of 250 PSI. UVNB stamped for unfired vessel protection. Used for many applications to protect or relieve pressure for Air, GasSteam.

Features:
• Designed for durability
• 6 orifices – 12 sizes of piping options
• Top guided seatingdischarge
• Full nozzle; high capacity levels
• Excellent re-seating characteristics with pivoting
ball-post design
• Short, tuned blow-downcan be adjusted
with double ring to meet specific requirements
• Heavy duty hoodlever mechanism
• Standard 17-7 stainless steel springs

Options:
• Stainless steel whetted trimming package
(seat, diskinteriors)
• O-ring seating. (Teflon, EDPM, Viton, or as specified)
• Bubble tight seating options
• Anti vibrating spring for lift lever
• Packed lift lever
• BPT pipe threading

Ordering:
• Specify series (560/570), special seating options, piping size,
set pressure PSI , capacity requirements when ordering
• See opposite page for details