| MATERIAL | IRON MALLEABLE OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| MEDIA FOR WHICH DESIGNED | STEAM 1ST RESPONSE |
| WATER-OIL-GAS 2ND RESPONSE |
| MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH 1ST RESPONSE |
| 300.0 POUNDS PER SQUARE INCH 2ND RESPONSE |
| MAXIMUM OPERATING TEMP | 260.0 DEG CELSIUS 1ST RESPONSE |
| 65.6 DEG CELSIUS 2ND RESPONSE |
| CONNECTION TYPE | THREADED INTERNAL PIPE ALL ENDS |
| CONNECTION STYLE | PLAIN (PIPE) ALL ENDS |
| THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| NOMINAL THREAD SIZE | 2.000 INCHES 1ST END |
| 1.250 INCHES 2ND END |
| 2.000 INCHES 3RD END |
| LEG LENGTH | 2.250 INCHES NOMINAL 1ST END |
| 2.100 INCHES NOMINAL 2ND END |
| 2.250 INCHES NOMINAL 3RD END |
| SPECIFICATION/STANDARD DATA | 80204-B16.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND |
| 81348-WW-P-521 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | 5 TABLE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | WWP521 |