| STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| VALVE OPERATION METHOD | AUTOMATIC |
| MATERIAL | STEEL COMP 303 OVERALL |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| ACETYLENE 2ND RESPONSE |
| AMMONIA, GASEOUS 3RD RESPONSE |
| REFRIGERANT 12 4TH RESPONSE |
| HYDROGEN 5TH RESPONSE |
| MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | -40.0 DEG FAHRENHEIT 1ST RESPONSE |
| 250.0 DEG FAHRENHEIT 2ND RESPONSE |
| CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| CONNECTION STYLE | PLAIN (PIPE) 1ST END |
| NOMINAL PIPE SIZE ACCOMMODATED | 1.000 INCHES 1ST END |
| THREAD SERIES DESIGNATOR | NPT 1ST END |
| NOMINAL THREAD SIZE | 1.000 INCHES 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 21.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND |
| BONNET PACKING AND |
| PRESSURE TIGHT OUTLET SIDE |
| SPECIAL FEATURES | POP-OFF TYPE |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY PRE-SET SETTING |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 91816 |
| DESIGN CONTROL REFERENCE | 559T-8M-21 |