The ideal copper pipe fitting for HVAC system maintenance-
When you can't use an open flame, Sandoh K.K.'s LOCK JOINT is the perfect fitting to use. LOCK JOINT can be installed without special equipment, yet it provides a strong and reliable seal in refrigerant handling systems.
LOCK JOINT is available in the following sizes:
| Standard Products | Non-Standard Sizes | ||||
| Model | Pipe Diameter | Wall Thickness | Model | Pipe Diameter | Wall Thickness |
| L-6.35 | 6.35 | 0.8 | |||
| L-9.52 | 9.52 | 0.8 | |||
| L-12.7 | 12.7 | 0.8〜0.89 | |||
| L-15.88 | 15.88 | 1.0〜1.02 | |||
| L-19.05 | 19.05 | 1.0〜1.07 | |||
| L-22.22 | 22.22 | 1.0〜1.15 | |||
| L-25.4 | 25.4 | 1.0 | |||
| L-28.58 | 28.58 | 1.0〜1.2 | H-28.58 | 28.58 | 1.3〜1.4 |
| L-31.75 | 31.75 | 1.1〜1.2 | H-31.75 | 31.75 | 1.4〜1.5 |
| L-34.92 | 34.92 | 1.1〜1.2 | H-34.92 | 34.92 | 1.55〜1.65 |
| L-38.1 | 38.1 | 1.15〜1.3 | H-38.1 | 38.1 | 1.70〜1.80 |
| L-41.28 | 41.28 | 1.10〜1.20 | |||
| L-44.45 | 44.45 | 1.15〜1.25 | |||
(Pipe diameter and wall thickness dimensions listed are upper limits; please confirm actual dimensions.)
*LOCK JOINT can also be used with new refrigerants. When ordering, please specify the refrigerant in question.