VALVE SAFETY 
P/N P87-344
NSN 4820-01-032-5698
MFG CIRCOR AEROSPACE 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7

ITEM NAME:   VALVE,SAFETY RELIEF
DEFINITION:  A valve designed to automatically release excessive pressures. It is
             actuated by static pressure upstream of the valve and is used as a
             safety valve or relief valve, and may be set to close at a
             predetermined pressure. It is not designed for regulation of
             continuously fluctuating loads. It may be inline or cartridge
             (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND
             TEMPERATURE.
             

CHARACTERISTIC                          VALUE
FLOW CONTROL DEVICE                     POPPET                                            
DISK LOADING METHOD                     SPRING                                            
VALVE DISCHARGE FLOW RATE               20.0 CUBIC FEET PER MINUTE                        
MAXIMUM OPERATING TEMP                  165.0 DEG FAHRENHEIT SINGLE RESPONSE              
VALVE OPERATION METHOD                  AUTOMATIC                                         
FLANGE SHAPE                            ROUND ALL ENDS                                    
CONNECTION TYPE                         FLANGE ALL ENDS                                   
VALVE SIZE                              0.250 INCHES                                      
MAXIMUM OPERATING PRESSURE              400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE      
OPENING PRESSURE SETTING                270.0 POUNDS PER SQUARE INCH                      
NOMINAL OUTSIDE DIAMETER                1.750 INCHES ALL ENDS                             
NOMINAL THICKNESS                       0.320 INCHES ALL ENDS                             
FIRST CONNECTION FACE TO                1.405 INCHES                                      
CENTERLINE DISTANCE                                                                       
SECOND CONNECTION FACE TO               1.500 INCHES                                      
CENTERLINE DISTANCE                                                                       
FLANGE FACE DESIGN                      RECESSED WITH GASKET GROOVE ALL ENDS              
RECESS NOMINAL DIAMETER                 1.060 INCHES ALL ENDS                             
RECESS NOMINAL DEPTH                    0.115 INCHES ALL ENDS                             
MATERIAL                                STEEL COMP 304L OVERALL                           
MATERIAL DOCUMENT AND                   FED STD 66,AISI 304L/SAE 30304L FED STD SINGLE    
CLASSIFICATION                          MATERIAL RESPONSE OVERALL                         
MEDIA FOR WHICH DESIGNED                AIR SINGLE RESPONSE                               
SURFACE TREATMENT                       PASSIVATE                                         
STYLE DESIGNATOR                        ANGLE FLANGED ENDS