 UNITED STATES FITTINGS INC. |
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| USFI Home |
Our Customers |
RFQ Form |
Tees |
Laterals |
Stub Ends |
Crosses |
Spool Pieces |
True Wyes |
Shaped Nipples |
Adaptor Nipples |
Wafer Spacer |
Wafer Buddy |
Back-up Flanges |
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LIGHTWEIGHT DUCTILE IRON BACK-UP FLANGES
| For Use With Stub Ends |
| ASTM A-536-80 ANSI B16.5 |
SPEC SHEET 50000 SERIES |
GRADE 80-55-06 150 LB DRILLING |
| Part No. |
Nominal Pipe Size |
Inside Diameter ID |
Outside Diameter OD |
Thickness T |
Bolt Circle BC |
Bolt Hole Diameter |
Bevel B 45 |
Bolts Size |
Bolts No. |
Approx. Weight |
|---|---|---|---|---|---|---|---|---|---|---|
| 50050 | 1/2 | .900 | 3 1/2 | 7/16 | 2 3/8 | 5/8 | 3/16 | 1/2 | 4 | 1.0 |
| 50075 | 3/4 | 1.110 | 3 7/8 | 1/2 | 2 3/4 | 5/8 | 3/16 | 1/2 | 4 | 1.3 |
| 50100 | 1 | 1.380 | 4 1/4 | 1/2 | 3 1/8 | 5/8 | 3/16 | 1/2 | 4 | 1.7 |
| 50125 | 1 1/4 | 1.720 | 4 5/8 | 1/2 | 3 1/2 | 5/8 | 3/16 | 1/2 | 4 | 2.0 |
| 50150 | 1 1/2 | 1.970 | 5 | 1/2 | 3 7/8 | 5/8 | 3/16 | 1/2 | 4 | 2.1 |
| 50200 | 2 | 2.437 | 6 | 1/2 | 4 3/4 | 3/4 | 1/4 | 5/8 | 4 | 3.0 |
| 50250 | 2 1/2 | 2.940 | 7 | 1/2 | 5 1/2 | 3/4 | 1/4 | 5/8 | 4 | 4.0 |
| 50300 | 3 | 3.563 | 7 1/2 | 1/2 | 6 | 3/4 | 1/4 | 5/8 | 4 | 4.3 |
| 50400 | 4 | 4.563 | 9 | 9/16 | 7 1/2 | 3/4 | 1/4 | 5/8 | 8 | 6.5 |
| 50500 | 5 | 5.625 | 10 | 5/8 | 8 1/2 | 7/8 | 1/4 | 3/4 | 8 | 7.4 |
| 50600 | 6 | 6.750 | 11 | 5/8 | 9 1/2 | 7/8 | 1/4 | 3/4 | 8 | 9.0 |
| 50800 | 8 | 8.750 | 13 1/2 | 5/8 | 11 3/4 | 7/8 | 5/16 | 3/4 | 8 | 12.5 |
| 51000 | 10 | 10.875 | 16 | 5/8 | 14 1/4 | 1 | 5/16 | 7/8 | 12 | 15.6 |
| 51200 | 12 | 12.875 | 19 | 3/4 | 17 | 1 | 5/16 | 7/8 | 12 | 27.0 |
| 51400 | 14 | 14.187 | 21 | 3/4 | 18 3/4 | 1 1/8 | 5/16 | 1 | 12 | 32.0 |
| 51600 | 16 | 16.187 | 23 1/2 | 3/4 | 21 1/4 | 1 1/8 | 3/8 | 1 | 16 | 40.0 |
| 51800 | 18 | 18.187 | 25 | 7/8 | 22 3/4 | 1 1/4 | 3/8 | 1 1/8 | 16 | 45.0 |
| 52000 | 20 | 20.250 | 27 1/2 | 7/8 | 25 | 1 1/4 | 3/8 | 1 1/8 | 20 | 53.0 |
| 52400 | 24 | 24.250 | 32 | 1 | 29 1/2 | 1 3/8 | 3/8 | 1 1/4 | 20 | 78.0 |
| 53000 | 30 | 30.375 | 38 3/4 | 1 | 36 | 1 3/8 | 1/2 | 1 1/4 | 28 | 105.0 |
| 53600 | 36 | 36.500 | 46 | 1 1/8 | 42 3/4 | 1 5/8 | 1/2 | 1 1/2 | 32 | 160.0 |