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Proco Style 442-BD
The Proco Style 442-BD Molded Expansion Joints can be used for corrosive applications that are found in industries such as chemical-petrochemical, industrial process piping systems, power generation plants, pulp/paper plants, water and wastewater sewage, and pollution control systems. This expansion joint features two convolutions for minimal movements, higher pressure/temperature ratings, and short face-to-face opening requirements. Wherever metallic joints, lap joints, or PTFE and FEP-lined rubber expansion joints were previously used, the Proco Style 442-BD can also be used.
Some notable features of the Proco Style 442-BD include:
- Absorption of pipe-wall and fluid-borne noise
- Reduction of system stress and strain
- Isolation of mechanical vibration and motion
- Superior “Flex Life” and strength
- Tested force pound and spring rate tables
- Coated flanges and factory set limit bolts
- Chemical service capability at minimal cost
- Elimination of electrolysis
- Protection against start up and surge forces
For more information about the features and benefits of the Proco Style 442-BD, download our brochure.
For up-to-date pricing and availability information, contact PROCO today.
| Nominal Size I.D. | Neutral Length Inches | Movement Capabilities Based on two Convolution Design¹ | Spring Rate Capability² | Expansion Joint Flange Drilling | Pressure at Temperature (PSIG) @ °F | Vacuum Rating ³ | Weight/ lbs | ||||||||||||||||||||
| ±Axial(Δx) Movement |
Lateral(Δy) Deflation |
Angular Deflation | Compression Spring Rate | Extension Spring Rate | Lateral Spring Rate | Thrust Factor | # of Holes | Thread Hole Size | Bolt Circle Flange “A” | PTFE Flare O.D. “B” | Flange Thickness | Nominal Flange O.D. | Limit Bolt Diameter | Bolt Circle Limit Bolt “C” | Limit Bolt “EAR” O.D. | ||||||||||||
| IN | IN | DEG. | LB/IN | LB/IN | LB/IN | 70° | 100° | 150° | 200° | 250° | 300° | 350° | 400° | Hg at Temp. | |||||||||||||
| 1.00 | 1.375 | 0.250 | .125 | 7 | 104 | 80 | 104 | 2.76 | 4 | 1/2- 13 | 3.125 | 2.000 | .313 | 4.250 | .250 | 5.125 | 6.000 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 425°F | 2 |
| 1.25 | 1.375 | 0.250 | .125 | 7 | 61 | 137 | 400 | 2.25 | 4 | 1/2- 13 | 3.500 | 2.520 | .394 | 4.630 | .250 | 5.196 | 6.850 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | CF | 5 |
| 1.50 | 1.375 | 0.250 | .125 | 7 | 320 | 180 | 224 | 4.60 | 4 | 1/2-1 3 | 3.875 | 2.875 | .344 | 5.000 | .250 | 5.875 | 6.750 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 425°F | 3 |
| 2.00 | 1.563 | 0.250 | .125 | 7 | 512 | 300 | 240 | 7.07 | 4 | 5/8- 11 | 4.750 | 3.625 | .438 | 6.000 | .375 | 6.875 | 8.125 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 425°F | 7 |
| 2.50 | 2.250 | 0.313 | .125 | 7 | 457 | 278 | 328 | 9.62 | 4 | 5/8- 11 | 5.500 | 4.125 | .500 | 7.000 | .375 | 8.125 | 9.375 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 425°F | 10 |
| 3.00 | 2.250 | 0.375 | .188 | 7 | 648 | 320 | 319 | 15.90 | 4 | 5/8- 11 | 6.000 | 5.000 | .500 | 7.500 | .375 | 8.750 | 10.000 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 425°F | 10 |
| 4.00 | 2.625 | 0.500 | .250 | 7 | 480 | 280 | 400 | 23.75 | 8 | 5/8- 11 | 7.500 | 6.188 | .625 | 9.000 | .375 | 9.875 | 11.125 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 400°F | 18 |
| 5.00 | 3.250 | 0.500 | .250 | 7 | 440 | 440 | 320 | 33.17 | 8 | 3/4- 10 | 8.500 | 7.313 | .750 | 10.000 | .500 | 11.500 | 13.000 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 400°F | 24 |
| 6.00 | 2.750 | 0.500 | .250 | 7 | 440 | 386 | 440 | 50.24 | 8 | 3/4- 10 | 9.500 | 8.500 | .750 | 11.000 | .500 | 12.500 | 14.000 | 185 | 170 | 148 | 130 | 115 | 100 | 84 | 68 | 29.9′ @ 400°F | 29 |
| 8.00 | 4.000 | 0.500 | .250 | 7 | 450 | 390 | 480 | 83.49 | 8 | 3/4- 10 | 11.750 | 10.625 | .938 | 13.500 | .500 | 14.750 | 16.250 | 164 | 150 | 129 | 112 | 100 | 87 | 73 | 60 | 29.9′ @ 250°F | 47 |
| 10.00 | 5.250 | 0.500 | .250 | 7 | 760 | 600 | 580 | 108.38 | 12 | 7/8- 9 | 14.250 | 12.750 | 1.000 | 16.000 | .500 | 17.500 | 19.000 | 164 | 150 | 129 | 112 | 100 | 87 | 73 | 22 | 29.9′ @ 250°F | 64 |
| 12.00 | 6.000 | 0.500 | .250 | 7 | 1300 | 420 | 700 | 176.63 | 12 | 7/8- 9 | 17.000 | 15.000 | 1.000 | 19.000 | .625 | 20.500 | 22.000 | 70 | 59 | 48 | 40 | 35 | 30 | 26 | 22 | 29.9′ @ 75°F | 115 |
| 14.00 | 6.313 | 0.750 | .375 | 7 | 320 | 1056 | 1256 | 233.59 | 12 | 1-8 | 18.750 | 16.250 | 1.188 | 21.000 | 1.420 | 24.172 | 27.313 | 70 | 59 | 48 | 40 | 35 | 30 | 26 | 22 | 10.0′ @ 212°F | 126 |
| 16.00 | 7.000 | 1.000 | .375 | 7 | 297 | 1096 | 1256 | 259.68 | 16 | 1-8 | 21.250 | 18.500 | 1.188 | 23.500 | 1.420 | 27.563 | 31.500 | 70 | 59 | 48 | 40 | 35 | 30 | 26 | 22 | 10.0′ @ 212°F | 159 |
| 18.00 | 7.938 | 1.000 | .375 | 7 | 440 | 1941 | 1370 | 321.90 | 16 | 1 1/8- 8 | 22.750 | 21.000 | 1.188 | 25.000 | 1.420 | 29.000 | 32.906 | 70 | 59 | 48 | 40 | 35 | 30 | 26 | 22 | 9.0′ @ 212°F | 174 |
| 20.00 | 9.000 | 1.000 | .375 | 7 | — | — | — | 374.57 | 20 | 1 1/8- 8 | 25.000 | 23.000 | 1.188 | 27.500 | 1.420 | 31.500 | 35.438 | 70 | 59 | 48 | 40 | 35 | 30 | 26 | 22 | 6.0′ @ 212°F | 183 |
| 24.00 | 6.313 | 0.625 | .375 | 7 | — | — | — | 538.36 | 20 | 1 1/4- 7 | 29.500 | 27.250 | 1.344 | 32.000 | 1.420 | 35.906 | 39.844 | 70 | 59 | 48 | 40 | 35 | 30 | 26 | 22 | 4.0′ @ 212°F | 238 |
NOTES:
1. Movements are non-concurrent and based from Neutral Length with Limit Bolts installed.
2. Spring Rate Capability is based on 1″ of movement at zero pressure conditions.
3. Vacuum Rating is based from fully extended position. CF = Contact Factory.
| Series 442-BD | ||
| Description | 1″ Through 12″ | 14″ Through 24″ |
| Bellows | PTFE | PTFE |
| Flanges | Ductile Iron | Zinc Plated Carbon Steel |
| Reinforcing Rings | Stainless Steel | Stainless Steel |
| Limit Bolts | Carbon Steel | Carbon Steel |
| Nuts | Carbon Steel | Carbon Steel |
| Grommets | Neoprene | Neoprene |
| Washers | Carbon Steel | Carbon Steel |
