| STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS. |
| VALVE OPERATION METHOD | AUTOMATIC |
| MATERIAL | STEEL CORROSION RESISTING BODY |
| STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| STEEL CORROSION RESISTING SEAT |
| 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 | 2500.0 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 |
| THREADED EXTERNAL TUBE 2ND END |
| CONNECTION STYLE | GASKET SEAL(BOSS) 1ST END |
| EXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END |
| THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| NOMINAL THREAD SIZE | 4.000 INCHES ALL ENDS |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| RIGHT-HAND 2ND END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 18.5 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | VALVE STEM LOCK SHIELD AND |
| BONNET PACKING AND |
| PRESSURE TIGHT OUTLET SIDE |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 91816 |
| DESIGN CONTROL REFERENCE | 5159T-4MP-18.5 |