3-A Sanitary Fittings

3-A Sanitary standards require the hose end fitting to be sealed against the ingress of external fluid into the fitting construction. Aflex Hose have implemented a silicone seal between the ferrule and fi tting to address this requirement. Standard Bioflex Ultra fittings are not available with the 3-A seal feature and therefore a different fitting type is required.

When ordering customers should specify that the hose assembly must meet 3-A sanitary requirements. The 3-A symbol and appropriate marking to 3-A requirements will be applied to the hose assembly.

Note that 3-A hose assemblies have slightly reduced MWP and these are tabulated separately within this section.

Bioflex Ultra Silicone Cover hoses are soakable.

The Aflex Hose 3-A certificate is available to view on our website in the 'certifications' section. The Aflex Hose 3-A certificate is also available to view on the 3-A Sanitary website .  Follow the link to the database search page and search for “Aflex Hose” under view company listings. 

 

3-A Maximum Working Pressure - Hose Assembly MWP

Nominal Hose Size *Maximum Working Pressure
in mm psi Bar
3/8 9.5 1000 70
1/2 15 870 60
5/8 16 725 50
3/4 20 650 45
7/8 22 800 55
1 25 580 40
11/4 32 580 40
13/8 35 580 40
11/2 40 580 40
17/8 48 500 35
2 50 400 28
21/2 65 290 20
3 80 218 15

*The Maximum Working Pressure stated may be reduced as required by the fitting specification.

 

3-A Sanitary and Mini-Sanitary Triclamp Fitting Specifications

 

3-A Mini-Sanitary Triclamp Fitting
3-A Mini-Sanitary Triclamp Fitting
3-A Sanitary Triclamp Fitting
3-A Sanitary Triclamp Fitting

Mini-Sanitary 
Triclamp
Fittings

Nominal Hose Size Fitting Length A
in in mm
 1/4  1.3  33
1/4  1.3  33 
3/8  1.7  42 
3/8  1.7  42 
1/ 1.7  44 
1/2  1.7  44 
3/4  2.0   50
Sanitary
Triclamp
Fittings
3/4 2.0  50
 3/4 2.0  50 
 1/2  1.7  44
 1/2  1.7 44 
 3/4  1.8 45 
 3/4  1.8 45 
 3/4  1.8 45 
 1  2.3  58
 1  2.3 58 
 11/2  2.6 67 
 11/2  2.6 67 
 2  3.1 78 
 21/2  2.80 71 
 3  3.17 80.4 

 

Specifications other than 'Fitting Length A' for 3A Sanitary and Mini-Sanitary Triclamp Fittings can be found in 'Sizes, Grades, Bend Radii & Dimensions' and 'Sizes, Grades, Pressures & Weights'.

 

3-A Non-Lined Swivel Flange Specifications

Nominal Hose Size *Fitting Length A
ASA150
Flared Diameter D
ASA150
Fitting Inside Diameter I
ASA 150
Weight of Fitting †3A
in mm in mm in mm in mm Kg Lbs  
1/2 13 1.67 42.50 1.38 35.00 0.37 9.40 0.57 1.25 -
3/4 20 1.86 47.24 1.69 42.90 0.62 15.75 0.84 1.84
1 25 2.36 60.00 2.00 50.80 0.85 21.50 1.20 2.63
11/4 32 2.67 67.72 2.50 63.50 1.03 26.21 1.59 3.50
11/2 40 2.75 69.86 2.87 73.00 1.25 31.75 2.15 4.73
2 50 3.20 81.22 3.62 92.00 1.76 44.60 2.92 6.41
21/2 65 3.70 94.00 4.13 105.00 2.25 57.15 4.36 9.59
3 80 3.74 95.00 5.00 127.00 2.63 66.70 6.02 13.24

 

Nominal Hose Size *Fitting Length A
PN10/16
Fitting Diameter D
PN10/16
Fitting Inside Diameter I
PN10/16
Weight of Fitting †3A
in mm in mm in mm in mm Kg Lbs  
1/2 13 1.79 45.50 1.77 45.00 0.37 9.40 0.78 1.72 -
3/4 20 2.11 53.50 2.28 58.00 0.62 15.75 1.12 2.47
1 25 2.44 62.00 2.68 68.00 1.12 28.50 1.43 3.15
11/4 32 2.70 68.50 3.07 78.00 1.03 26.21 2.35 5.17
11/2 40 2.91 74.00 3.49 88.00 1.70 43.10 2.76 6.06
2 50 3.50 89.00 4.02 102.00 2.15 54.50 3.62 7.96
21/2 65 3.62 92.00 4.80 122.00 2.25 57.15 4.58 10.07
3 80 3.74 95.00 5.43 138.00 2.63 66.70 6.03 13.26

 * Fitting lengths listed are for Bioflex Ultra RC, SI and BK hose grades. Shorter lengths apply for other hose grades. 
† 3A - Clean out of place (COP) only. 

 

3-A DIN11851 Female Specifications

Nominal Hose Size I Diameter Fitting Length A Weight of Fitting
in mm in mm in mm Kg Lbs
1/2 15 0.37 9.4 1.63 41.5 0.20 0.44
3/4 20 0.62 15.8 1.87 47.5 0.34 0.76
1 25 0.85 21.5 2.33 59.2 0.49 1.08
11/4 32 1.03 26.2 2.58 65.5 0.64 1.40
11/2 40 1.25 31.8 2.76 70.0 0.85 1.86
2 50 1.76 44.6 3.23 82.0 1.20 2.04
21/2 65 2.25 57.2 3.03 77.0 1.59 3.50
3 80 2.63 66.7 2.97 75.5 2.04 4.49

† 3A approved for CIP when used with approved gaskets