Kaysuns Industry Ltd.
Kaysuns Industry Ltd.
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A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system. It also provides easy access for cleaning, inspection or modification. Flanges are usually welded or screwed. Flanged joints are made by bolting together two flanges with a gasket between them to provide a seal.
We are strength in stainless steel flanges, such as SO flange, WN flange, Blind, Threaded flange, SW flange, Anchor Flange, Long welding neck flange etc, customized fabrication is available.
Rate:
Class 150LBS ~ 3000LBS
Dimension:
3/8” to 72” (DN10 ~DN1800)
Material:
| ▶Stainless Steel: | ASTM A/SA182 F304, F304L,F316, F316L, 316Ti, F317L, F321,F321H, F310H, F347H, N08904, F44 etc. (W1.4301, 1.4306, 1.4948, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4878, 1.4550, 1.4845, 1.4539, 1.4547 etc.). |
| ▶Duplex&Super Duplex: | ASTM A/SA182 F51, F53, F55, F59, F60(w1.4462, 1.4410, 1.4501, 1.4507 etc.) |
| ▶Nickel Alloy: |
ASTM B564 N10276, N04400,N06600,N06601,N06625,N08800, N08020 (w2.4819,2.4360,2.4361,2.4816,2.4851,2.4856,1.4876,1.4958 )etc. |
| ▶Other Alloys: |
ASTM A105,A105N; St37.2, C22.8; ASTM A182 F11, F12, F22, F5, F91; ASTM A350 LF2, LF3; ASTM A694 F42, F46, F48, F50, F52, F56,F60,F65,F70 etc. |
Specification:
| ASME/ANSI B16.5-1996 and B16.47-1996 | |||
| Tolerances on flange dimensions (ASME/ANSI B16.5 and B16.7, and MSS SP-44) | |||
| Dimension | Range | Tolerance | |
| in | mm | ||
| General and Blind Flanges(For blind flange dimendions see page 8-23 for B16.5, page8-46 for B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47 Series B/ API 605): |
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| G(raised face diameter) |
≤NPS 24 | ±0.03 | ±0.76 |
| ≥NPS 26,with 0.06 in raised face |
±0.08 | ±2.03 | |
| ≥NPS 26,with 0.25 in raised face |
±0.04 | ±1.02 | |
| I(bolt hole diameter) | All | No tolerance in B16.5 or B 16.47 | |
| J(bolt circle diameter) | All | ±0.06 | ±1.52 |
| Center to center of adjacent bolt holes |
All | ±0.03 | ±0.76 |
| Eccenticity of bolt circle and machined facing diameters |
≤NPS 2½ | ±0.03 | ±0.76 |
| ≥NPS 3 | ±0.06 | ±1.52 | |
| Weld Neck Flanges1 (For dimensions see page 8-10 for B 16.5, page 8-46 for B16.47 Series A/ MSS SP-44 and page 8-51 for B16.47 Series B/ API 605): |
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| D(overall length) | ≤NPS 4 | ﹢0.06 | ﹢1.52 |
| NPS 5 to 10 | ﹢0.06,﹣0.12 | ﹢1.52,﹣3.05 | |
| NPS 12 to 24 | ﹢0.12,﹣0.18 | ﹢3.05,﹣4.57 | |
| ≥NPS 26 | ±0.19 | ±4.83 | |
| Thickness of hub | All | ＞87.5% of pipe nominal wall thickness | |
| Slip on(see page 8-17),Lap Joint(see page8-32) and Socket Welding(see page 8-30 for dimensions) Flanges: |
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| B(inside diameter,or bore) |
≤NPS10 | ﹢0.03,﹣0.0 | ﹢0.76,﹣0.0 |
| ≥NPS12 | ﹢0.06,﹣0.0 | ﹢1.52,﹣0.0 | |
| Threaded Flanges (see page 8-40 for dimensions): | |||
| B(counterbore) (Not applicable for Class 150 lb |
≤NPS10 | ﹢0.03,﹣0.0 | ﹢0.76,﹣0.0 |
| ≥NPS12 | ﹢0.06,﹣0.0 | ﹢1.52,﹣0.0 | |
For more information, please contact us.
