Direct spring safety valves that provide comprehensive overpressure
protection for steam safety applications• ASME/NB certified capacities for steam.
• Set and tested on steam.
• Full nozzle flanged option.
• Restricted lift for customized capacity.
• Long service life. • Low maintenance.
• Two ring set pressure and blowdown control.
• ISOFLEX seat tightness up to 93%. For seat tightness greater than
93% consult factory
• Extends Up-time - ISOFLEX® seat tightness to 93% of set pressure
ensures maximum generating times, extending maintenanceintervals.
For seat tightness greater than 93% consult factory.
• Reduces Maintenance Costs - Exceptional seat tightness
minimizesmaintenance resources and repair times and reduces spare
parts purchase and inventory costs.
• Easily Adjustable for ASME Boiler and Pressure Vessel Code
Section I (V Designator) Requirements
- Advanced trim design with backpressure assist closing feature and
patented eductor control eliminates complex adjustments to obtain
ASME Boiler and Pressure Vessel Code Section I (V Designator)
required blowdown. • Minimizes Installation Costs - Weld end valves
shipped as two assemblies to minimize installation time and labor
and no special vent discharge piping is required, saving costs.
• Installation and Maintenance Efficiencies - Packaging
designed for quick and easy installation. - Ease of adjustment and
maintenance with fewer parts. - Two-ring blowdown control iseasy to
set and adjustable in the field