Benkan Butt-Weld Eccentric Reducer
Price on request
Your selection
Choose a configuration to see its dimensions.
Product range
Benkan Butt-Weld Concentric Reducer
Benkan Butt-Weld Concentric Reducer · to ASME B16.9, MSS SP-75, ASTM A234, ASTM A403, ASTM A420, ASTM A815, ASTM A860, ASME B16.25, JIS B2311 / B2312 / B2313
- Standards
- ASME B16.9 · MSS SP-75 · ASTM A234 · ASTM A403
Price on request
Availability on request
Prices and availability for this range are provided by quotation.
Download datasheet (PDF)BNK-BRC-34-12
Free account required - sign in to download
Inquire on WhatsApp| Material | Material not verified - specify it in your request for quotation |
|---|---|
| Large end (NPS) | 3/4" · 1" · 1-1/4" · 1-1/2" · 2" · 2-1/2" · 3" · 3-1/2" · 4" · 5" · 6" · 8" · 10" · 12" · 14" · 16" · 18" · 20" · 22" · 24" · 26" · 28" · 30" · 32" · 34" · 36" · 38" · 40" · 42" · 44" · 46" · 48" |
| Small end (NPS) | 3/8" · 1/2" · 3/4" · 1" · 1-1/4" · 1-1/2" · 2" · 2-1/2" · 3" · 3-1/2" · 4" · 5" · 6" · 8" · 10" · 12" · 14" · 16" · 18" · 20" · 22" · 24" · 26" · 28" · 30" · 32" · 34" · 36" · 38" · 40" · 42" · 44" · 46" |
| Standards | ASME B16.9, MSS SP-75, ASTM A234, ASTM A403, ASTM A420, ASTM A815, ASTM A860, ASME B16.25, JIS B2311 / B2312 / B2313 |
Available sizes & grades (133)
| SKU | Large end (NPS) | Small end (NPS) |
|---|---|---|
| BNK-BRC-34-12 | 3/4" | 1/2" |
| BNK-BRC-34-38 | 3/4" | 3/8" |
| BNK-BRC-1-34 | 1" | 3/4" |
| BNK-BRC-1-12 | 1" | 1/2" |
| BNK-BRC-114-1 | 1-1/4" | 1" |
| BNK-BRC-114-34 | 1-1/4" | 3/4" |
| BNK-BRC-114-12 | 1-1/4" | 1/2" |
| BNK-BRC-112-114 | 1-1/2" | 1-1/4" |
| BNK-BRC-112-1 | 1-1/2" | 1" |
| BNK-BRC-112-34 | 1-1/2" | 3/4" |
Data as published by the manufacturer (), catalogue page 7, 10, 12. Please confirm the specification in your request for quotation.
Butt-Weld Concentric Reducer: dimensions (mm)
| large | small | OD1mm | OD2mm | Hmm |
|---|---|---|---|---|
| 3/4" | 1/2" | 26.7 | 21.3 | 38.1 |
| 3/4" | 3/8" | 26.7 | 17.3 | 38.1 |
| 1" | 3/4" | 33.4 | 26.7 | 50.8 |
| 1" | 1/2" | 33.4 | 21.3 | 50.8 |
| 1-1/4" | 1" | 42.2 | 33.4 | 50.8 |
| 1-1/4" | 3/4" | 42.2 | 26.7 | 50.8 |
| 1-1/4" | 1/2" | 42.2 | 21.3 | 50.8 |
| 1-1/2" | 1-1/4" | 48.3 | 42.2 | 63.5 |
| 1-1/2" | 1" | 48.3 | 33.4 | 63.5 |
| 1-1/2" | 3/4" | 48.3 | 26.7 | 63.5 |
| 1-1/2" | 1/2" | 48.3 | 21.3 | 63.5 |
| 2" | 1-1/2" | 60.3 | 48.3 | 76.2 |
| 2" | 1-1/4" | 60.3 | 42.2 | 76.2 |
| 2" | 1" | 60.3 | 33.4 | 76.2 |
| 2" | 3/4" | 60.3 | 26.7 | 76.2 |
| 2-1/2" | 2" | 73.0 | 60.3 | 88.9 |
| 2-1/2" | 1-1/2" | 73.0 | 48.3 | 88.9 |
| 2-1/2" | 1-1/4" | 73.0 | 42.2 | 88.9 |
| 2-1/2" | 1" | 73.0 | 33.4 | 88.9 |
| 3" | 2-1/2" | 88.9 | 73.0 | 88.9 |
- Note (1) The shape of Reducer sizes 16" and larger may be manufactured to conical type without the tangent.
- (2) 48" and larger can be manufactured. Please contact us for size capability.
- End-to-end H and large-end OD are printed once per large size and apply to every small size listed under it.
Source: manufacturer catalogue p.10
Butt-Weld Concentric Reducer: theoretical weight per piece (kg) and volume (m³)
| large | small | STDkg | XSkg | m3 |
|---|---|---|---|---|
| 3/4" | 1/2" | 0.06 | 0.07 | — |
| 1" | 3/4" | 0.11 | 0.14 | — |
| 1-1/4" | 1" | 0.15 | 0.20 | — |
| 1-1/2" | 1-1/4" | 0.24 | 0.32 | — |
| 2" | 1-1/2" | 0.37 | 0.50 | — |
| 2-1/2" | 2" | 0.70 | 0.91 | 0.001 |
| 3" | 2-1/2" | 0.91 | 1.22 | 0.001 |
| 3-1/2" | 3" | 1.28 | 1.77 | 0.001 |
| 4" | 3-1/2" | 1.53 | 2.14 | 0.001 |
| 5" | 4" | 2.50 | 3.52 | 0.002 |
| 6" | 5" | 3.61 | 5.45 | 0.004 |
| 8" | 6" | 5.71 | 8.63 | 0.007 |
| 10" | 8" | 9.65 | 13.0 | 0.013 |
| 12" | 10" | 13.7 | 18.2 | 0.021 |
| 14" | 12" | 25.5 | 33.8 | 0.042 |
| 16" | 14" | 30.9 | 41.0 | 0.059 |
| 18" | 16" | 37.7 | 50.0 | 0.080 |
| 20" | 18" | 56.3 | 74.7 | 0.131 |
| 22" | 20" | 62.3 | 82.8 | 0.159 |
| 24" | 22" | 68.4 | 90.9 | 0.189 |
- * Weight and volume are according to theoretical calculation.
- * Figures of tees are on equal tees and figures of reducers are on one size reduction reducers.
- The Thai Benkan catalogue (page 4) prints a few slightly different weights: 2" XS: Thai 0.51 / Kikoh 0.50; 2-1/2" XS: Thai 0.92 / Kikoh 0.91; 3" XS: Thai 1.23 / Kikoh 1.22; 4" STD: Thai 1.45 / Kikoh 1.53; 4" XS: Thai 2.02 / Kikoh 2.14; 5" STD: Thai 2.52 / Kikoh 2.50; 5" XS: Thai 3.54 / Kikoh 3.52; 6" STD: Thai 3.63 / Kikoh 3.61; 6" XS: Thai 5.47 / Kikoh 5.45; 8" STD: Thai 5.8 / Kikoh 5.71; 8" XS: Thai 8.76 / Kikoh 8.63; 10" STD: Thai 9.76 / Kikoh 9.65; 10" XS: Thai 13.1 / Kikoh 13.0; 12" STD: Thai 13.9 / Kikoh 13.7; 12" XS: Thai 18.3 / Kikoh 18.2; 14" STD: Thai 25.6 / Kikoh 25.5; 14" XS: Thai 33.9 / Kikoh 33.8; 16" STD: Thai 31 / Kikoh 30.9; 16" XS: Thai 41.1 / Kikoh 41.0. Values shown are from the BENKAN KIKOH table.
Source: manufacturer catalogue p.7
Materials
- Carbon steel (seamless) — A 234 WPB, A 420 WPL6, A 860 WPHY42, A 860 WPHY52, A 860 WPHY60
- Stainless steel (seamless/welded) — A 403 WP304 / 304L, WP316 / 316L, WP S31254
- Duplex stainless steel (seamless/welded) — A 815 S31803, S32205, S32750, S32760
- Alloy steel (seamless) — A 234 WP1, WP5, WP9, WP11, WP12, WP22, WP91
- ASTM A234/A234M (carbon and alloy steel) — WPB, WPC, WP1, WP12 CL1, WP12 CL2, WP11 CL1, WP11 CL2, WP11 CL3, WP22 CL1, WP22 CL3, WP5 CL1, WP5 CL3, WP9 CL1, WP9 CL3, WPR, WP91, WP911, WP92
- ASTM A420/A420M (low-temperature) — WPL6, WPL9, WPL3, WPL8
- ASTM A403/A403M (austenitic stainless) — WP304, WP304L, WP304H, WP316, WP316L, WP316H, WP321, WP347
- ASTM A815/A815M (duplex) — WPS31803, WPS32205, WPS32750, WPS32760
- ASTM A860/A860M (high-strength low-alloy) — WPHY42, WPHY46, WPHY52, WPHY60, WPHY65, WPHY70
Standards
- ASME B16.9 — for this product
- MSS SP-75 — for this product
- ASTM A234 — for this product
- ASTM A403 — for this product
- ASTM A420 — for this product
- ASTM A815 — for this product
- ASTM A860 — for this product
- ASME B16.25 — for this product
- MSS SP25 — mentioned generally in the catalogue
- JIS B2311 / B2312 / B2313 — for this product
- EN 10204 3.1 — mentioned generally in the catalogue
Catalogue notes
- Merged Benkan product: dimensions from the BENKAN KIKOH Corporation catalogue (pages 10); production range and grades from the Thai Benkan catalogue where listed. Choose schedule and material in your request for quotation; weights per schedule are in the weight table.
- Thai Benkan production range (page 3 of the Thai Benkan catalogue): Carbon steel: 3/4"-16", STD - Sch160 / XXS
- Thai Benkan production range (page 3 of the Thai Benkan catalogue): Stainless steel: 3/4"-16", Sch10S - Sch160 / XXS
- Thai Benkan production range (page 3 of the Thai Benkan catalogue): Duplex: 3/4"-16", Sch10S - Sch80S
- Thai Benkan production range (page 3 of the Thai Benkan catalogue): Alloy steel: 3/4"-16", STD - Sch160 / XXS
Description
Benkan Butt-Weld Concentric Reducer as listed in the Benkan catalogue. Standards: ASME B16.9, MSS SP-75, ASTM A234, ASTM A403, ASTM A420, ASTM A815, ASTM A860, ASME B16.25, JIS B2311 / B2312 / B2313. Materials: Carbon steel (seamless) (A 234 WPB, A 420 WPL6, A 860 WPHY42, A 860 WPHY52, A 860 WPHY60); Stainless steel (seamless/welded) (A 403 WP304 / 304L, WP316 / 316L, WP S31254); Duplex stainless steel (seamless/welded) (A 815 S31803, S32205, S32750, S32760); Alloy steel (seamless) (A 234 WP1, WP5, WP9, WP11, WP12, WP22, WP91); ASTM A234/A234M (carbon and alloy steel) (WPB, WPC, WP1, WP12 CL1, WP12 CL2, WP11 CL1, WP11 CL2, WP11 CL3, WP22 CL1, WP22 CL3, WP5 CL1, WP5 CL3, WP9 CL1, WP9 CL3, WPR, WP91, WP911, WP92); ASTM A420/A420M (low-temperature) (WPL6, WPL9, WPL3, WPL8); ASTM A403/A403M (austenitic stainless) (WP304, WP304L, WP304H, WP316, WP316L, WP316H, WP321, WP347); ASTM A815/A815M (duplex) (WPS31803, WPS32205, WPS32750, WPS32760); ASTM A860/A860M (high-strength low-alloy) (WPHY42, WPHY46, WPHY52, WPHY60, WPHY65, WPHY70). Dimensions for each size and class are shown in the Dimensions tab. Source: Benkan catalogue, page 7, 10, 12. Please confirm the exact specification in your request for quotation.
Related products