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PERFORMANCE DATA

COUPLING SELECTION
GUIDE
TEMPERATURE
DE-RATING CHART
DYNAMIC
FORCE CHART
SPILL RATE/
WATER DISCHARGE TABLE


Campbell Coupling Selection Guide

From the Selection Guide below, choose an appropriate coupling based on the hose type and application working pressure. Click here for the Coupling Selection Guide PDF .

NOTE: The data below is based on years of hydrostatic testing. All tests are performed to the ASTM D380 standard. We employ a safety factor based on the Rubber Manufacturers Association (RMA) recommendations of 4x working pressure (WP) for most hoses with the exception of 3x for water up to 150 psi., 5x for LP gas and 10x for steam. This means that any hose with a 4x safety factor is tested to 4000 psi., or beyond, in order to establish a 1000 psi. rating.

Coupling Selection Guide
Hose System Components Hose Size
Fitting/Coupling Attachment Hose Type 1/2 3/4 1 1-1/4 1-1/2 2 2-1/2 3 4 5 6 8 10 12
Combination Nipple Short Sleeve Rubber 400 350 300 275 250 225 225 225 175 call 175 150 125 100
Combination Nipple Short Sleeve Chemical 200 200 200 140 130 120 110 100 50 call - - - -
Combination Nipple Short Sleeve PVC 150 125 100 90 85 65 60 55 40 call 30 20 - -
Suction Coupling* Short Sleeve Rubber - - - 275 250 225 210 200 175 - 150 100 - -
Suction Coupling* Short Sleeve PVC - - - 90 85 65 60 55 40 - 30 20 - -
Ball & Socket Coupling** Short Sleeve Rubber - - - - - 300 - 250 225 - 140 60 - -
Ball & Socket Coupling** Short Sleeve PVC - - - - - 170 - 140 100 - 80 50 - -
Crimpnology Nipple Ferrule Chem/Rubber - - 500 350 325 300 275 250 250 call 225 175 - -
Crimpnology Nipple Ferrule Soft - - 200 175 150 150 125 100 75 call 50 20 - -
Long Crimpnology Nipple Long Ferrule Rubber - - - - 1000 1000 650 600 500 call - - - -
Crimpnology Nipple Swivel Ferrule Chem/Rubber - 500 500 - - - - - - - - - - -
Long Crimpnology Nipple Swivel Long Ferrule Chem/Rubber - - - 500 500 500 - - - - - - - -
Crimpnology Flange (steel) Ferrule Chem/Rubber - - - - 285 285 275 250 250 call 225 175 - -
Crimpnology Flange (ss) Ferrule Chem/Rubber - - - - 230 230 230 230 230 call 225 - - -
FRAC-16C Frac Ferrule Rubber - - - - - - - - 400 - - - - -
Fig 206/100 Hose Union (forged steel) Frac Ferrule Rubber - - - - - 500 - 500 400 - - - - -
Campbell Cobra SS C&G Ferrule Chem/Rubber - - 250 - 250 250 150 150 125 - - - - -
Campbell Cobra AL C&G Ferrule Chem/Rubber - - - - 250 200 150 125 75 - call - - -
Viton Ground Joint/Air Hammer/Male Stem U-Bolt Clamp Rubber/Steam 1500 1250 1250 1250 1250 1250 800 500 500 - - - - -
Viton Ground Joint Cplg/Male Stem Staked-on Ferrule Steam 1250 1250 1250 - - 1000 - - - - - - - -
Viton Ground JointAir Hammer/Male Stem Long Ferrule Rubber 1000 1000 1000 1000 1000 1000 650 500 500 - - - - -
HeatWave Coupling/HW Male Staked-on Ferrule Rubber - - - - - call - call - - - - - -
UniversaLock Ferrule Air 300 300 300 - - - - - - - - - - -
Universal Ferrule Air 150 150 150 - - - - - - - - - - -
Single-Lock Coupling Ferrule Air 300 300 300 - - - - - - - - - - -
Double-Lock Coupling Ferrule Air 300 300 300 - - - - - - - - - - -
ChemJoint/Male Stem Ferrule Chemical 350 400 450 325 250 250 225 225 200 - - - - -
ChemJoint/Male Stem Ferrule Rubber 350 400 450 425 400 350 325 300 250 - - - - -
ChemJoint Weld-on & Union None None - 800 800 - 650 600 - 600 - - - - - -
Tri-Clamp Ferrule Sanitary - - 500 - 450 350 325 300 - - - - - -
Tri-Clamp Mach. Ferrule Sanitary - - 500 - 500 400 375 350 - - - - - -
Wine Fitting Ferrule Sanitary - - - - 450 350 - 300 - - - - - -
Wine Fitting Band Clamps Sanitary - - - - 100 100 - 50 - - - - - -
Washdown Fitting Light Ferrule Water 300 300 - - - - - - - - - - - -
*Domestic Suction Coupling
** Ball & Socket pressure ratings are based on 1.5x WP

Temperature De-Rating Chart

When should 500 psi. be 320 psi.? When it’s hot!

The effect of elevated temperature on any hose system is significant and often overlooked. Since the lay line of most hoses indicates the maximum WP and the maximum temperature, it can be assumed the hose assembly will achieve both at the same time. Hot hoses get soft and are more pliable, hampering the ability of the attachment to hold the couplings securely on the hose. Since Campbell’s pressure ratings are established by testing at 70F, we established a separate pressure de-rating chart for elevated temperatures.

Elevated Temperature De-rating Chart
Hose Type 70° 90° 110° 130° 150° 175° 200° 225° 250° 275°
Steam 1.00 0.95 0.90 0.85 0.81 0.75 0.68 0.62 0.56 0.50
Hot Tar & Asphalt 1.00 0.95 0.90 0.85 0.81 0.75 0.68 0.62 0.56 0.50
PVC 1.00 0.83 0.65 0.48 0.30 0.08 N/R N/R N/R N/R
Rubber 1.00 0.91 0.82 0.73 0.64 0.53 0.42 0.31 0.20 0.09
Chemical 1.00 0.91 0.82 0.73 0.64 0.53 0.42 0.31 0.20 0.09
Air 1.00 0.91 0.82 0.73 0.64 0.53 0.42 0.31 0.20 0.09
Elevated Temperature De-rating Chart
Hose Type 300° 325° 350° 375° 400° 425° 450° 475° 500°
Steam 0.44 0.38 0.32 0.26 0.20 0.14 0.08 0.02 N/R
Hot Tar & Asphalt 0.44 0.38 0.32 0.26 0.20 0.14 0.08 0.02 N/R
PVC N/R N/R N/R N/R N/R N/R N/R N/R N/R
Rubber N/R N/R N/R N/R N/R N/R N/R N/R N/R
Chemical N/R N/R N/R N/R N/R N/R N/R N/R N/R
Air N/R N/R N/R N/R N/R N/R N/R N/R N/R

De-rating factor applies to hose system pressure ratings

How the De-rating chart works:

The chart lists temperatures across the top and hose type down the left column. Based on your hose system application, locate the appropriate de-rating factor and multiply it by the hose system pressure rating in the pressure chart above.

Steam hose example:

  1. Hose – ¾" steam hose, rated to 250 psi. at 406°(F).
  2. Coupling/Attachment – Campbell Viton Seal Ground Joint Couplings with crimp ferule are rated to 1250 psi. at 70° (F).
  3. Operating temperature – 406°
  4. De-rating factor at 406° – .20
  5. Hose System de-rating – 1250 x .20 = 250 ps. *

Rubber hose example:

  1. Hose – 3” air hose rated to 500 psi.
  2. Coupling/Attachment – Long Shank Crimpnology Nipple with Long Ferrule rated to 600 psi.
  3. Operating Temperature – 150°(F)
  4. De-rating factor – .64
  5. Hose System de-rating – 600 psi. x .64 = 384 psi. *

* After the de-rating is calculated for the fitting and attachment, check maximum working pressure of the hose. The hose system should never operate at a higher pressure than the lowest rated component. (Example: 150 psi rated hose with 500 psi rated coupling and attachment at 90°(F). The de-rating factor is .90. So, the newly calculated pressure rating is 500 x .90 = 450 psi.. Since the hose is rated to 150 psi., then the maximum working pressure of the system is still 150 psi.

On a typical summer day at any construction site, compressors crank out high pressure air to operate tools and equipment. Between the weather and the compressor motors, the compressed air gets dangerously hot. So hot, that those hoses can no longer safely operate at the intended pressure rating. Our de-rating chart shows that at 150°(F) the hose system should operate at 64% of the pressure rating given for 70°(F). That’s when 500 psi,. should be 320 psi.

Know the safety limits of hoses. Use the Campbell de-rating chart when specifying hoses at elevated temperatures.

Dynamic Force Chart

Dynamic force is the energy created by the pressure relative to the diameter of the hose.

Did you know that a 3" air hose at 500 psi generates over 3500 pounds of end force? Yes, my friend, that’s some serious tonnage.

Don’t blow an end off. Use the pressure rating chart and coupling selection guide to choose the appropriate fitting for the job.

Dynamic Force Chart – measured in pounds per square inch (lbs.)

Dynamic Force Chart
Hose Size/PSI @ 25 psi @ 50 psi @ 75 psi @ 100 psi @ 150 psi @ 200 psi @ 250 psi @ 300 psi @ 500 psi @ 1000 psi
1/4" 1 2 4 5 7 10 12 15 25 49
3/8" 3 6 8 11 17 22 28 33 55 110
1/2" 5 10 15 20 29 39 49 59 98 196
3/4" 11 22 33 44 66 88 110 133 221 442
1" 20 39 59 79 118 157 196 236 393 785
1-1/4" 31 61 92 123 184 245 307 368 614 1227
1-1/2" 44 88 133 177 265 353 442 530 884 1767
2" 79 157 236 314 471 628 785 942 1571 3142
2-1/2" 123 245 368 491 736 982 1227 1473 2454 4909
3" 177 353 530 707 1060 1414 1767 2121 3534 7069
4" 314 628 942 1257 1885 2513 3142 3770 6283 12566
5" 491 982 1473 1964 2945 3927 4909 5891 9818 19635
6" 707 1414 2121 2827 4241 5655 7069 8482 14137 28274
8" 1257 2513 3770 5027 7540 10053 12566 15080 25133 50266
10" 1964 3927 5891 7854 11781 15708 19635 23562 39270 78540
12" 2827 5655 8482 11310 16965 22620 28724 33929 56549 113098

Spill Rate / Water Discharge Table

Why should you be concerned that it only takes 10 minutes to fill a backyard swimming pool?

1600 gallons per minute flow thru a 3" hose at 200 psi. That’s 16,000 gallons in 10 minutes – enough to fill a standard size backyard swimming pool. Unless your job is filling swimming pools, then you should be concerned because 10 minutes is how fast a fitting ejection becomes an EPA nightmare. What’s in your hose?

Avoid the nightmare. Use the pressure rating chart and coupling selection guide to choose the appropriate fitting for the job.

Spill Rate / Water Discharge Table – measured in gallons per minute (gpm)*

Spill Rate / Water Discharge Table
Nominal Hose ID Diameters - Inches
PSI 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4" 6" 8" 10" 12"
20 26 47 76 161 290 468 997 2895 6177 11108 17943
30 32 58 94 200 360 582 1240 3603 7689 13828 22335
40 38 68 110 234 421 680 1449 4209 8981 16151 26089
50 43 77 124 264 475 767 1635 4748 10131 18220 29430
60 47 85 137 291 524 846 1804 5239 11180 20105 32475
75 53 95 154 329 591 955 2035 5910 12611 22679 36633
100 62 112 180 384 690 1115 2377 6904 14731 26491 42790
125 70 126 203 433 779 1258 2681 7788 16617 29883 48270
150 77 139 224 478 859 1388 2958 8593 18336 32975 53264
200 90 162 262 558 1004 1621 3455 10038 21418 38517 62216

*The above values are for the flow through a 100 foot length of hose with a straight smooth bore rubber hose. This table is a calculated estimation. Differences in actual flow rates may be affected by hose and environmental conditions.