Mueller® 521 Pipe Coupling, 4 Inch, NPT, 3.69 Inch Length, Class 150, 300 psi WOG Working, ASTM A197 Malleable Iron, Black Oxide, ASME B16.3/B16.14/B16.39, 150 deg F, 5.4 Inch W
| Dimensions | : | 5.4 Inch W |
| End Style | : | NPT |
| Finish | : | Black Oxide |
| Industry Standards | : | ASME B16.3/B16.14/B16.39 |
| Length | : | 3.69 Inch |
| Material Specification | : | ASTM A197 |
| Material | : | Malleable Iron |
| Nominal Size | : | 4 Inch |
| Pressure Class | : | Class 150 |
| Series | : | 521 |
| Temperature Rating | : | 150 deg F |
| Working Pressure | : | 300 psi WOG |
- Keep products away from corrosive environment both inside and outside
- Kept free from moisture during transport and storage
- They work under normal conditions of temperature and pressure should not be subjected to temperatures below 20 deg F
- They are used for conveying water, gas, air (in non-corrosive environments)
Standard/Approvals: cUL Listed, FM Approved
Application: HVAC and Refrigeration
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