| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 4820-00-243-9797
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 002439797
 
 Description:
 VALVE,SAFETY RELIEF
 
 Detail:
 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.
 |  
		                        | 
 Manufacturer Information:
 
 | 4699N13 | 39428 | MCMASTER-CARR SUPPLY CO | 
 |  
					            | 
 Techincal Specification:
 
 | STYLE DESIGNATOR | STRAIGHT THRU |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | COPPER ALLOY OVERALL |  | FLOW CONTROL DEVICE | POPPET |  | VALVE DISCHARGE FLOW RATE | 723.0 POUNDS PER HOUR |  | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |  | CONNECTION STYLE | PLAIN (PIPE) 1ST END |  | NOMINAL PIPE SIZE ACCOMMODATED | 1.250 INCHES 1ST END |  | THREAD SERIES DESIGNATOR | NPT 1ST END |  | NOMINAL THREAD SIZE | 1.250 INCHES 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | DISK LOADING METHOD | SPRING |  | OPENING PRESSURE SETTING | 10.0 POUNDS PER SQUARE INCH |  | SPECIAL FEATURES | VALVE SIZE 1-1/4 IN. | 
 |  |