Buying Guide

86
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: [phone] • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: [phone]
www.nibco.com
Visit www.nibco.com for current Chem-Guide and galvanic potential in piping systems information.
www.nibco.com
AHEAD OF THE FLOW
®
Revised 7/20/2018
MATERIAL LIST
PART SPECIFICATION
1. Body Bolt
1
Steel ASTM A307
2. Identification Plate Aluminum
3. Bonnet ASTM A126 3% Nickel Iron Class B
4. Body Gasket Synthetic Fibers
5. Nut Steel ASTM A563
6. Side Plug ASTM A 193 B8M S31600SS
7. Hanger Pin Ductile Iron ASTM A536
8. Hanger Ductile Iron ASTM A395
9. Disc
2
ASTM A351 CF8M
10. Seat Ring ASTM A351 CF8M
11. Disc Nut ASTM A194 B8M S31600 SS
12. Body ASTM A126 3% Nickel Iron Class B
13. Disc Bolt
2
ASTM A276 S31600 Stainless Steel
1
2" and 10" have hex head steel capscrew
2
2"-4" SST ASTM A351 CF8M disc
5"-12" 3% nickel iron disc with SST disc face ring and disc bolt
Class 125 3% Nickel Iron Body Check Valves
Bolted Bonnet • Renewable Seat and Disc* • Stainless Steel Trim
200 PSI/13.8 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 125 PSI/8.6 bar
125 PSI/8.6 bar saturated steam to 353°F/178°C
CONFORMS TO MSS SP-71
F-918-13
Flanged
F-918-13
Flg x Flg
DIMENSIONS—WEIGHTS—QUANTITIES
Dimensions
Size A B D E Weight
In. mm. In. mm. In. mm. In. mm. In. mm. Lbs. Kg.
2 50 8.00 203 3.94 100 6.00 152 .63 16 24 11
2¹⁄₂ 65 8.50 216 4.50 114 7.00 178 .69 17 35 16
3 80 9.50 241 5.13 130 7.50 191 .75 19 47 21
4 100 11.50 292 6.13 156 9.00 229 .94 24 80 36
6 150 14.00 356 8.00 203 11.00 279 1.00 25 146 66
8 200 19.50 495 9.44 240 13.50 343 1.13 29 255 116
10 250 24.50 622 12.06 306 16.00 406 1.19 30 426 193
12 300 27.50 699 16.13 410 19.00 483 1.25 32 657 298
*Proper machining facilities required.
Note: On pump discharge, the preferred check valves are:
- inline, spring assisted, center-guided, lift checks
- spring assisted twin (double) disc
- swing design with lever and weight or lever and spring
Install 5 pipe diameters minimum downstream from pump discharge or changes in direction to
avoid flow turbulence. Flow straighteners may be required in extreme cases.
NIBCO
®
Check Valves may be installed in both horizontal and vertical lines with upward flow
or in any intermediate position.
Warning: Do not use for Reciprocating Air Compressor Service.
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.