
Flat Seat Union 330
Flat seat union with two female ends (figure 330). The centre nut opens the joint without turning the pipes, so the line can be broken for maintenance at that exact point. Available in 11 sizes, from 1/4" to 4". BSP thread, to ABNT NBR 6943, ISO 49 and EN 10242, the standards for threaded malleable cast iron fittings. Working pressure of 25 bar (360 psi) up to 120 °C and 20 bar (290 psi) up to 300 °C, with a test pressure of 100 bar.
Sold by quotation. State quantity and size for a quick reply.
Technical specifications
| Code | Description | Thread | Figure |
| 1263002 | FLAT SEAT UNION 1/4″ | BSP | 330 |
| 1263003 | FLAT SEAT UNION 3/8″ | BSP | 330 |
| 1263004 | FLAT SEAT UNION 1/2″ | BSP | 330 |
| 1263006 | FLAT SEAT UNION 3/4″ | BSP | 330 |
| 1263007 | FLAT SEAT UNION 1″ | BSP | 330 |
| 1263008 | FLAT SEAT UNION 1.1/4″ | BSP | 330 |
| 1263009 | FLAT SEAT UNION 1.1/2″ | BSP | 330 |
| 1263010 | FLAT SEAT UNION 2″ | BSP | 330 |
| 1263011 | FLAT SEAT UNION 2.1/2″ | BSP | 330 |
| 1263012 | FLAT SEAT UNION 3″ | BSP | 330 |
| 1263014 | FLAT SEAT UNION 4″ | BSP | 330 |
| Diameter (in) | Diameter (mm) | A (mm) | S (mx) | S1 (mm) | Weight (g) |
| 1/4″ | 8mm | 42 | 27 | 17 | 96 |
| 3/8″ | 10mm | 45 | 32 | 20 | 92 |
| 1/2″ | 15mm | 48 | 41 | 25 | 178 |
| 3/4″ | 20mm | 52 | 50 | 32 | 286 |
| 1″ | 25mm | 58 | 55 | 39 | 375 |
| 1.1/4″ | 32mm | 65 | 70 | 49 | 597 |
| 1.1/2″ | 40mm | 70 | 75 | 55 | 699 |
| 2″ | 50mm | 78 | 90 | 69 | 1099 |
| 2.1/2″ | 65mm | 85 | 110 | 85 | 1754 |
| 3″ | 80mm | 95 | 130 | 98 | 2555 |
| 4″ | 100mm | 110 | 150 | 124 | 3325 |
| Unit | Service up to 120 °C | Service up to 300 °C | Test (ambient) |
| lbf/pol² | 360 | 290 | 1500 |
| kgf/cm²(bar) | 25 | 20 | 100 |
| Unit conversion | Equivalent |
| 1 bar | 14,5 psi |
| 1 bar | 1 kgf/cm² |
| 1 bar | 0,1 MPa |
| 1 psi | 1 lbf/pol² |



