
MALLEABLE IRON FITTINGS
Class 150 (Standard)
FIGURE 1101
q
90˚ Elbow
Size A
NPS DN in mm lbs kg lbs kg
1
/8 6
1
/4 8
3
/8 10
1
/2 15 11/8 29 0.30 0.14 0.30 0.14
3
/4 20 15/16 33 0.45 0.20 0.45 0.20
1 25 1
1
/4 32 13/4 44 0.97 0.44 0.97 0.44
1
1
/2 40 115/16 49 1.30 0.59 1.30 0.59
1
2 50 2
1
/2 65 211/16 68 3.55 1.61 3.55 1.61
2
3 80 3
1
/2 90 37/16 87 7.10 3.22 7.10 3.22
A
3
4 100 3
5 125 4
6 150 5
11
/16 17 0.06 0.03 0.06 0.03
13
/16 22 0.11 0.05 0.11 0.05
15
/16 24 0.17 0.08 0.17 0.08
1
/2 38 0.73 0.33 0.73 0.33
1
/4 57 2.06 0.93 2.06 0.93
1
/16 78 5.46 2.48 5.46 2.48
13
/16 98 8.95 4.06 8.95 4.06
1
/2 114 13.90 6.30 13.90 6.30
1
/8 130 23.00 10.43 23.00 10.43
Black Galv.
Unit Weight
Note: See following page for pressure-temperature ratings. Galvanized weights may vary. Please contact your Anvil Representative if you need verification.
All Elbows & Tees
3
/8"
(10 DN)
and Larger are 100% Gas Tested at a Minimum of 100 PSI.
(6.9 bar)
PROJECT INFORMATION APPROVAL STAMP
Project:
Address:
Contractor:
Engineer: Remarks:
Submittal Date:
Notes 1:
Notes 2:
PF-6.13
Approved
q
Approved as noted
q
Not approved
q

MALLEABLE IRON FITTINGS
Malleable Iron Threaded Pipe Unions
Pressure - Temperature Ratings
Temperature
(°F) (°C) psi bar psi bar psi bar
-20°
150°
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
For Listings/Approval Details and Limitations, visit our website at
-28.9°
to
to
65.6°
www.anvilintl.com or contact an Anvil Sales Representative.
Class 150 Class 250 Class 300
300 20.7 500 34.5 600 41.4
Pressure
Malleable Iron Threaded Fittings
Pressure - Temperature Ratings
Pressure
Temperature
(°F) (°C) psi bar psi bar psi bar psi bar
-20°
to
150°
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
Class 150
-28.9°
to
300 20.7 2,000 137.9 1,500 103.4 1,000 68.9
65.6°
Sizes 1⁄4"–1"
(6–25 mm)
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)
Class 300
Sizes 11⁄4"–2"
(32–51 mm)
Sizes 21⁄2"–3"
(64–76 mm)
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.
PF-11.16

MALLEABLE IRON FITTINGS
General Assembly of Threaded Fittings
1) Inspect both male and female components prior to assembly.
• Threads should be free from mechanical damage, dirt, chips and excess cutting oil.
• Clean or replace components as necessary.
2) Application of thread sealant
• Use a thread sealant that is fast drying, sets-up to a semi hard condition and is vibration resistant. Alternately, an anaerobic
sealant may be utilized.
• Thoroughly mix the thread sealant prior to application.
• Apply a thick even coat to the male threads only. Best application is achieved with a brush stiff enough to force sealant down
to the root of the threads.
3) Joint Makeup
• For sizes up to and including 2" pipe, wrench tight makeup is considered three full turns past handtight. Handtight engagement
for 1⁄2" through 2" thread varies from 41⁄2 turns to 5 turns.
• For 21⁄2" through 4" sizes, wrench tight makeup is considered two full turns past handtight. Handtight engagement for 21⁄2"
through 4" thread varies from 51⁄2 turns to 63⁄4 turns.
PF-11.13