| CAST IRON HEAD |
| Flat Seat (with gasket) |
Thread Size 18 mm (3.5~4.5 kg-m) (25.3~32.5 lbs-ft) |
Thread Size 14 mm 2.5~3.5 kg-m (18.0~25.3 lbs-ft) |
| Conical Seat |
Thread Size 18 mm 2.0~3.0 kg-m (14.5~21.6 lbs-ft) |
Thread Size 14 mm 1.5~2.5 kg-m (10.8~18.0 lbs-ft) |
| ALUMINUM HEAD |
| Flat Seat (with gasket) |
Thread Size 18 mm 3.5~4.0 kg-m (25.3~28.9 lbs-ft) |
Thread Size 14 mm 2.5~3.0 kg-m (18.0~21.6 lbs-ft) |
| Conical Seat |
Thread Size 18 mm 2.0~3.0 kg-m (14.5~21.6 lbs-ft) |
Thread Size 14 mm 1.0~2.0 kg-m (7.2~14.5 lbs-ft) |