Qualities and Inspections
| Leakage | The fittings, when subjected to a pneumatic pressure of 0.5Mpa (5.1kgf/cm2), shall not suffer any leakage | 1. Type
2. Acceptance |
| Pressure Resistance | The fittings, when subjected to a hydraulic pressure of 2.5Mpa (25.5kgf/cm2), shall be free from breakage or other abnormalities. | 1. Type |
| Screw Threads | The screw threads for fittings shall be taper pipe threads specified in JIS B0203 | 1. Type
2. Acceptance |
| Deviation Axial Lines of Threads | The angular deviation between respective axial lines of threads shall be 2mm or less for a distance of 300mm. | 1. Type
2. Acceptance |
| Plating | Whereas the plating is to be processed, fittings shall be plated by hot zinc dipping prior to thread cutting, and layer of playing shall have a uniform adhesion to the plated surfaces | 1. Type |
| Shapes and Dimension | · The shapes and dimensions of fittings shall be in accordance with JIS B2301
· The shapes and dimension may conform to ISO 49-1983 (Malleable cast iron fittings threaded to ISO 7/1) · The tolerance on basic dimensions for lengths from one end dace to the center or to another end face shall conform to Table 4, and other dimensions represent recommended values. |
1. Type
2. Acceptance |
