PF-11.16
MALLEABLE IRON FITTINGS
Anvil Class 150/300 Malleable Iron Fittings conform to ASME
B16.3 and Unions conform to ASME B16.39.
ALL ELBOWS & TEES
3
⁄8" (10 DN) and LARGER ARE 100% GAS TESTED AT
A MINIMUM OF 100 PSI. (6.9 bar)
Malleable Iron Threaded Fittings
Pressure - Temperature Ratings
Temperature
Pressure
Class 150
Class 300
Sizes
1
⁄4"–1"
(6–25 mm)
Sizes 1
1
⁄4"–2"
(32–51 mm)
Sizes 2
1
⁄2"–3"
(64–76 mm)
(°F) (°C) psi bar psi bar psi bar psi bar
-20°
to
150°
-28.9°
to
65.6°
300 20.7 2,000 137.9 1,500 103.4 1,000 68.9
200° 93.3 265 18.3 1,785 123.1 1,350 93.1 910 62.7
250° 121.1 225 15.5 1,575 108.6 1,200 82.7 825 56.9
300° 148.9 185 12.8 1,360 93.8 1,050 72.4 735 50.7
350° 176.7 150 10.3 1,150 79.3 900 62.1 650 44.8
400° 204.4 – – 935 64.5 750 51.7 560 38.6
450° 232.2 – – 725 50.0 600 41.4 475 32.8
500° 260.0 – – 510 35.2 450 31.0 385 26.5
550° 287.8 – – 300 20.7 300 20.7 300 20.7
For Listings/Approval Details and Limitations, visit our website at
www.anvilintl.com or contact an Anvil Sales Representative.
Standards and Specifications
Dimensions Material Galvanizing
*
Thread Pressure Rating
MALLEABLE IRON FITTINGS
Class 150/PN 20 ASME B16.3 ASTM A-197 ASTM A-153 ASME B1 20.1 ASME B16.3
Class 300/PN 50 ASME B16.3 ASTM A-197 ASTM A-153 ASME B1 20.1 ASME B16.3
MALLEABLE IRON UNIONS
Class 150/PN 20 ASME B16.39 ASTM A-197 ASTM A-153 ASME B1 20.1 ASME B16.39
Class 250 ASME B16.39 ASTM A-197 ASTM A-153 ASME B1 20.1 ASME B16.39
Class 300/PN 50 ASME B16.39 ASTM A-197 ASTM A-153 ASME B1 20.1 ASME B16.39
* ASTM B 633. Type I, SC 4, may be supplied as alternate zinc coating per applicable ASME B16 product standard.
Malleable Iron Threaded Pipe Unions
Pressure - Temperature Ratings
Temperature
Pressure
Class 150 Class 250 Class 300
(°F) (°C) psi bar psi bar psi bar
-20°
to
150°
-28.9°
to
65.6°
300 20.7 500 34.5 600 41.4
200° 93.3° 265 18.3 455 31.4 550 37.9
250° 121.1° 225 15.5 405 27.9 505 34.8
300° 148.9° 185 12.8 360 24.8 460 31.7
350° 176.7° 150 10.3 315 21.7 415 28.6
400° 204.4° 110 7.6 270 18.6 370 25.5
450° 232.2° 75 5.2 225 15.5 325 22.4
500° 260.0° – – 180 12.4 280 19.3
550° 287.8° – – 130 9.0 230 15.9
Note: Unions with Copper or Copper Alloy seats are not intended for use where temperature exceeds
450°F