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Flange Specification
- ANSI B16.5 (also ASME B16.5) Class 150# and 300#
- *DIN PN10, PN16 and PN40
- JIS 10K
- Other Pressure Ratings and Flange Specifications are also available.
*DIN PN10, PN16 and PN40 Flanges all have the same dimensions, and so are fully interchangeable.
Maximum Pressure Ratings for Flange Fittings
- ANSI 150# = 16 Bar (230 psi), ANSI 300# = 32 Bar (460 psi)
- DN PN10 = 10 Bar (145 psi), DN PN16 = 16 Bar (230 psi)
- PN40 = 40 Bar (580 psi)
End Fitting Materials
- Flanges in Grade 304 SS
- Flange Retainers in Grade 316L SS
- Flanges in Grade 304 SS
- Flange Retainers in Grade 316L SS
- Ferrules, most in Grade 304 SS, some sizes in Grade 316L SS
Alternative options for Flange component only:
- Zinc Plated Carbon Steel
- Blue Epoxy Coated Carbon Steel
90° Elbow Flange Fittings
90° Elbow Integral PTFE lined Flange Fittings are available for sizes 1", 1½ and 2"
Integral PTFE Lined Swivel Flange Fittings
 
Nominal
Hose Size |
*Fitting Length A
(Bioflex RC) |
Flared Diameter D |
Fitting Inside Dia.
and Hose Bore I |
Recommended Bolt
Tightening Torques |
| ANSI 150# |
DIN PN10/16 |
| in |
mm |
in |
mm |
in |
mm |
in |
mm |
in |
mm |
ft.lbs |
mtr.kgs |
| 1/2 |
13 |
1.850 |
47.0 |
1.25 |
32 |
1.25 |
32 |
1/2 |
12.7 |
8 |
1.10 |
| 3/4 |
20 |
1.890 |
48.0 |
1.690 |
43 |
1.69 |
43 |
3/4 |
19.0 |
8 |
1.10 |
| 1 |
25 |
2.400 |
61.0 |
2.00 |
50 |
2.50 |
63 |
1 |
25.4 |
10 |
1.40 |
| 1 1/2 |
40 |
2.360 |
60.0 |
2.875 |
73 |
3.50 |
88 |
1 1/2 |
38.0 |
15 |
2.10 |
| 2 |
50 |
2.720 |
69.0 |
3.625 |
92 |
4.00 |
102 |
2 |
50.8 |
25 |
3.50 |
*Fitting Lengths listed are for Bioflex RC, SI and FP hose grades. Shorter lengths apply for other hose grades.
"Step-Up" PTFE Lined Flange Fitting Design for Bioflex Hose
Because Bioflex Hose has better flow rates than some larger bore sizes of Convoluted PTFE hose, it represents a superior alternative when fitted with the larger size flanges in some applications.
It is, however, necessary to also "Step-Up" the PTFE-lined bore, to ensure a diameter match with the mating connector.
This is best achieved using a solid PTFE Adapter Plate, as shown in the drawing.
Example: a 2" hose to 3" ANSI 150# PTFE Lined Flange Joint
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