Performance and specification
Design and manufacture: GB/T12224-1989,GB/T12235-1989, connection type: flange connection, Structural characteristic: taper thread sealing；upper thread stem, test and inspection: GB/T13927-1992.
Dimensions & constructral diagram
J43W/H flange needle valve constructral diagram
Test standard
test itempressure value
| nominal pressure | 2.5 |
| Shell test | 3.7 |
| sealing test | 2.75 |
| gas pressure test | 0.9 |
| suitable Temperatue | ≤180℃ |
| applicable medium | Water,Steam,Oil, etc |
Model and the materials of main parts
| type | body | connector | stem | Screw cap | Packing |
| J48H-25 | 20# | 20# | 2Cr13 | 20# | Flexible graphite, PTFE |
| J48W-25P | 304SS | 304SS | 304SS | 304SS | Flexible graphite, PTFE |
| J48W-25R | 316SS | 316SS | 316SS | 316SS | Flexible graphite, PTFE |
External and connection dimensions
| specification | A | L | H | Do |
| DN10 | 90 | 130 | 90 | 60 |
| DN15 | 92 | 122 | 90 | 60 |
| DN20 | 105 | 150 | 105 | 80 |
| DN25 | 115 | 150 | 120 | 100 |
