Buying Guide
52
NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.336.4226 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455
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Visit www.nibco.com for current Chem-Guide and galvanic potential in piping systems information.
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AHEAD OF THE FLOW
®
Revised 4/20/2020
MATERIAL LIST
PART SPECIFICATION
1. Handwheel Nut Steel ASTM A563
2. Identification Plate Aluminum
3. Handwheel Cast Iron ASTM A126 Class B
4. Stem Brass ASTM B16 Alloy C36000
5. Gland Follower Nut Copper Alloy ASTM F 467 Alloy C27000
6. Gland Follower
Cast Iron ASTM A126 Class B
or Ductile Iron ASTM A536
7. Gland Follower Bolt Steel ASTM A307/SAE J429
8. Packing Gland
Zinc Plated Powdered Iron ASTM B783
or Copper Alloy ASTM B16
9. Stuffing Box Cast Iron ASTM A126 Class B
10. Packing Aramid Fibers / Graphite
11. Stuffing Box Gasket Reinforced Graphite
12. Stuffing Box Bolt Steel ASTM A307/SAE J429
13. Stuffing Box Nut Steel ASTM A563
14. Body Bolt Steel ASTM A307/SAE J429
15. Bonnet Cast Iron ASTM A126 Class B
16. Body Gasket Reinforced Flexible Graphite
17. Body Nut Steel ASTM A307
18.
2
Wedge Nut Copper Alloy ASTM B584 Alloy C84400
19. Seat Ring Copper Alloy ASTM B584 Alloy C84400
20.
1
Wedge Face Ring Copper Alloy ASTM B584 Alloy C84400
21.
1
Wedge Cast Iron ASTM A126 Class B
22. Body Cast Iron ASTM A126 Class B
1
Sizes thru 3" have Bronze Wedges. 4" thru 12" have Cast Iron Wedges with Copper Alloy Wedge Face Rings.
2
Copper Alloy Wedge Bushing cast in place on 4" Wedge. Copper Alloy Wedge Nut used in sizes 5" thru 12".
NOTE: 1.NIBCO may substitute Ductile Iron ASTM A395 (60-40-18) for ASTM A126 Class B Cast Iron for the Body,
Bonnet, Wedge, or Disc. NIBCO may substitute Ductile Iron ASTM A395 (60-40-18) or ASTM A536 (65-45-
12) for all other ASTM A126 Class B Cast Iron components.
2. Hand wheel secured with 25mm x 125mm metric socket head cap screw. Also need 1/2" wide
diameter flat washer.
Class 250 Iron Body Gate Valves
Bolted Bonnet • Non-Rising Stem • Solid Wedge • Bronze Mounted
500 PSI/34.5 bar non-shock cold working pressure to -20°F to 150°F/-29°C to 66°C
t
Maximum working temperature 450°F/232°C at 250 PSI/17.2 bar
250 PSI/17.2 bar saturated steam to 406°F/208°C
CONFORMS TO MSS SP-70
F-669
Flanged
F-669
Flg x Flg
DIMENSIONS—WEIGHTS—QUANTITIES
Dimensions
Size A B C D E Weight
In. mm. In. mm. In. mm. In. mm. In. mm. In. mm. Lbs. Kg.
2 50 8.50 216 13.50 343 7 178 6.50 165 .88 22 53 24
2¹⁄₂ 65 9.50 241 15.00 381 8 203 7.50 191 1.00 25 72 33
3 80 11.13 283 16.50 419 10 254 8.25 210 1.13 29 115 52
4 100 12.00 305 18.50 470 12 305 10.00 254 1.25 32 186 85
5 125 15.00 381 20.75 527 12 305 11.00 279 1.38 35 269 122
6 150 15.88 403 24.00 610 16 406 12.50 318 1.44 37 374 170
8 200 16.50 419 28.50 724 16 406 15.00 381 1.63 41 581 264
10 250 18.00 457 34.00 864 18 457 17.50 445 1.88 48 786 357
12 300 19.75 502 36.00 914 20 508 20.50 521 2.00 51 1098 498
Position indicators available. See page 98.
FREEZING WEATHER PRECAUTION: Subsequent to testing a piping system,
valves should be left in an open position to allow complete drainage.
t For detailed Operating Pressure, refer to Pressure Temperature Chart on
page 114.
WARNING: This product can expose you to chemicals including
lead, which is known to the State of California to cause cancer
and birth defects or other reproductive harm. For more information
go to www.P65Warnings.ca.gov.