 |
| Quantity: | |
|---|---|
TH Flange
SDFL
| Nominal Size | Outer Diameter | Central circle diameter | Bolt Hole Diameter | Number of Bolt Holes | Inner Diameter | Flange Ring Height | Weld Groove Diameter | Flange Overall Height | Sealing Face Diameter | Sealing Face Height | |
| DN | NPS | A | J | I | E | C | F | D | G | 6.4 | |
| 15 | 1/2 | 120.6 | 82.6 | 22.4 | 4 | 17 | 22.4 | 38.1 | 31.7 | 35.1 | 6.4 |
| 20 | 3/4 | 130 | 88.9 | 22.4 | 4 | 22.5 | 25.4 | 44.4 | 35 | 42.9 | 6.4 |
| 25 | 1 | 149.3 | 101.6 | 25.4 | 4 | 29 | 28.4 | 52.3 | 41.1 | 50.8 | 6.4 |
| 32 | 1-1/4 | 158.7 | 111.3 | 25.4 | 4 | 37.5 | 28.4 | 63.5 | 41.1 | 63.5 | 6.4 |
| 40 | 1-1/2 | 177.8 | 124 | 28.4 | 4 | 43.5 | 31.7 | 69.85 | 44.5 | 73.15 | 6.4 |
| 50 | 2 | 215.9 | 165.1 | 25.4 | 8 | 55 | 38.1 | 104.6 | 57.15 | 91.9 | 6.4 |
| 65 | 2-1/2 | 244.3 | 190.5 | 28.4 | 8 | 71 | 41.1 | 123.9 | 63.5 | 104.6 | 6.4 |
Thread reinforcement technology:
Cold rolling thread process: 40% increase in strength compared to cutting threads
Laser cladding treatment: Stellite 6 alloy wear-resistant surface welding on threads
Sealing innovation:
Bimetallic self tightening gasket: The higher the pressure, the stronger the sealing performance (applicable to RTJ surface)
Nano coating sealing: thread spraying graphene coating achieves zero leakage
design code
Wall thickness calculation according to ASME B16.34 formula: t ≥ (P × D)/(2S × E+0.8P)
Thread engagement length ≥ 1.5 times nominal diameter (DN40 requires ≥ 60mm)
Pre tightening force control bolt load is calculated according to Appendix O of ASME PCC-1
NDE testing 100% ultrasonic testing (UT)+liquid penetrant testing (PT)
| Nominal Size | Outer Diameter | Central circle diameter | Bolt Hole Diameter | Number of Bolt Holes | Inner Diameter | Flange Ring Height | Weld Groove Diameter | Flange Overall Height | Sealing Face Diameter | Sealing Face Height | |
| DN | NPS | A | J | I | E | C | F | D | G | 6.4 | |
| 15 | 1/2 | 120.6 | 82.6 | 22.4 | 4 | 17 | 22.4 | 38.1 | 31.7 | 35.1 | 6.4 |
| 20 | 3/4 | 130 | 88.9 | 22.4 | 4 | 22.5 | 25.4 | 44.4 | 35 | 42.9 | 6.4 |
| 25 | 1 | 149.3 | 101.6 | 25.4 | 4 | 29 | 28.4 | 52.3 | 41.1 | 50.8 | 6.4 |
| 32 | 1-1/4 | 158.7 | 111.3 | 25.4 | 4 | 37.5 | 28.4 | 63.5 | 41.1 | 63.5 | 6.4 |
| 40 | 1-1/2 | 177.8 | 124 | 28.4 | 4 | 43.5 | 31.7 | 69.85 | 44.5 | 73.15 | 6.4 |
| 50 | 2 | 215.9 | 165.1 | 25.4 | 8 | 55 | 38.1 | 104.6 | 57.15 | 91.9 | 6.4 |
| 65 | 2-1/2 | 244.3 | 190.5 | 28.4 | 8 | 71 | 41.1 | 123.9 | 63.5 | 104.6 | 6.4 |
Thread reinforcement technology:
Cold rolling thread process: 40% increase in strength compared to cutting threads
Laser cladding treatment: Stellite 6 alloy wear-resistant surface welding on threads
Sealing innovation:
Bimetallic self tightening gasket: The higher the pressure, the stronger the sealing performance (applicable to RTJ surface)
Nano coating sealing: thread spraying graphene coating achieves zero leakage
design code
Wall thickness calculation according to ASME B16.34 formula: t ≥ (P × D)/(2S × E+0.8P)
Thread engagement length ≥ 1.5 times nominal diameter (DN40 requires ≥ 60mm)
Pre tightening force control bolt load is calculated according to Appendix O of ASME PCC-1
NDE testing 100% ultrasonic testing (UT)+liquid penetrant testing (PT)
