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Proco Style 443-BD

The Proco Style 443-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 three convolutions and is designed for moderate movement and ease of system installation. Wherever metallic joints, lap joints, or PTFE and FEP-lined rubber expansion joints were previously used, the Proco Style 443-BD can also be used.

Some notable features of the Proco Style 443-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 443-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 three Convolution Design¹ Spring Rate Capability² Expansion Joint Flange Drilling Pressure at Temperature (PSIG) @ °F Vacuum Rating ³ Weight/ LBS
±Axial(Δx) Movement Lateral(Δy) Deflection Angular Deflection Compression Spring Rate Extension Spring Rate Lateral Spring Rate Thrust Factor # 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. LBf/IN LBf/IN LBf/IN 70° 100° 150° 200° 250° 300° 350° 400° Hg at Temp.
1.00 1.750 0.500 .250 14 190 82 96 2.81 4 1/2- 13 3.125 2.000 .313 4.250 .250 5.125 6.000 138 126 107 90 76 64 53 45 29.9′ @ 400°F 2
1.25 1.810 0.500 .250 14 40 120 314 2.25 4 1/2- 13 3.500 2.520 .394 4.630 .250 5.196 6.850 128 120 96 85 72 56 42 36 CF 5
1.50 2.000 0.500 .250 14 84 66 108 5.09 4 1/2- 13 3.875 2.875 .344 5.000 .250 5.875 6.750 138 126 107 90 76 64 53 45 29.9′ @ 400°F 4
2.00 2.750 0.750 .375 14 69 76 109 9.11 4 5/8- 11 4.750 3.625 .438 6.000 .375 6.875 8.125 138 126 107 90 76 64 53 45 29.9′ @ 400°F 8
2.50 3.188 0.750 .375 14 91 97 160 11.41 4 5/8- 11 5.500 4.125 .500 7.000 .375 8.125 9.375 138 126 107 90 76 64 53 45 29.9′ @ 400°F 11
3.000 3.625 1.000 .500 14 124 125 194 16.91 4 5/8- 1 6.000 5.000 .500 7.500 .375 8.750 10.000 138 126 107 90 76 64 53 45 29.9′ @ 400°F 13
4.00 3.625 1.000 .500 14 220 155 264 25.40 8 5/8- 11 7.500 6.188 .625 9.000 .375 9.875 11.125 138 126 107 90 76 64 53 45 29.9′ @ 400°F 19
5.00 4.000 1.000 .500 14 320 210 324 34.45 8 3/4- 10 8.500 7.313 .750 10.000 .500 11.500 13.000 138 126 107 90 76 64 53 45 29.9′ @ 300°F 25
6.00 4.000 1.125 .563 14 289 187 266 50.24 8 3/4- 10 9.500 8.500 .750 11.000 .500 12.500 14.000 138 126 107 90 76 64 53 45 29.9′ @ 300°F 30
8.00 6.000 1.125 .563 14 178 218 423 83.49 8 3/4- 10 11.750 10.625 .938 13.500 .500 14.750 16.250 120 110 94 80 67 57 47 38 29.9′ @ 125°F 48
10.00 7.000 1.188 .500 14 420 531 857 128.55 12 7/8- 9 14.250 12.750 1.000 16.000 .500 17.750 19.000 82 70 64 52 46 39 34 30 19.0′ @ 212°F 60
12.00 7.875 1.188 .625 14 743 542 857 144.72 12 7/8- 9 17.000 15.000 1.000 19.000 .625 20.500 22.000 82 70 64 52 46 40 34 30 10.0′ @ 212°F 77
14.00 8.500 1.250 .688 14 239 628 970 233.59 12 1-8 18.750 16.250 1.188 21.000 1.420 24.172 27.313 82 70 64 52 46 40 34 30 10.0′ @ 212°F 132
16.00 9.188 1.375 .750 14 245 571 970 259.68 16 1-8 21.250 18.500 1.188 23.500 1.420 27.563 31.500 82 70 64 52 46 40 34 30 10.0′ @ 212°F 165
18.00 11.063 1.188 .750 14 — — 1085 321.90 16 1 1/8- 8 22.750 21.000 1.188 25.000 1.420 29.000 32.906 60 58 48 42 36 30 28 26 9.0′ @ 212°F 201
20.00 12.875 1.188 1.000 14 — — 1142 374.57 20 1 1/8- 8 25.000 23.000 1.188 27.500 1.420 31.5000 35.438 60 58 48 42 36 30 28 26 6.0′ @ 212°F 243
24.00 11.875 1.000 .750 14 — — — 538.36 20 1 1/4-7 29.500 27.250 1.344 32.000 1.420 35.906 39.844 60 58 48 42 36 30 28 26 4.0′ @ 212°F 309

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 443-BD Materials of Construction
Description 1″ Through 12″ 14″ Through 20″
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

In order to properly and successfully install Proco Style 443-BD PTFE expansion joints, specific service conditions must be met, and it’s important that the process is implemented using the guidelines set forth in our brochure. Contact Proco for additional advice if the system requirements exceed those of the expansion joint selected.

For detailed information on service conditions, proper alignment, anchoring, and storage techniques, download the PROCO Style 443-BD Brochure.