Buying Guide

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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
www.nibco.com
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AHEAD OF THE FLOW
®
Revised 7/20/2018
Class 150 Bronze Check Valves
Bolted Bonnet • Horizontal Swing • Regrinding Type • Renewable Seat and Disc
150 PSI/10.3 bar saturated steam to 366°F/185°C
300 PSI/20.7 bar non-shock cold working pressure
CONFORMS TO MSS SP-80
S-433-B
Solder
S-433-B
C x C
MATERIAL LIST
PART SPECIFICATION
1. Bonnet Bronze ASTM B 62
2. Body Bronze ASTM B 62
3. Hinge Pin ASTM B371 Alloy C69400
4. Disc Hanger Bronze ASTM B 62 or MPIF SS-316NI-25
5. Hanger Nut ASTM B 62 Alloy C83600
6. Disc Bronze ASTM B 62 (B)
7. Hinge Pin Plug Bronze ASTM B140 Alloy C31400
8. Seat Ring Bronze ASTM B 62 C83600
9. Body Bolt Zinc Plated Steel
10. Body Nut Zinc Plated Steel
11. Gasket Aramid Fibers with Graphite
DIMENSIONS—WEIGHTS—QUANTITIES
Dimensions
Size B C Weight Master
In. mm. In. mm. In. mm. Lbs. Kg. Ctn. Qty.
4 100 6.19 157 7.38 187 37 16.78 1
Dezincification
Resistant
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.
Note: On pump discharge, the preferred check valves are: inline, spring assisted, center-guided, lift checks.
NIBCO
®
Check Valves may be installed in both horizontal and vertical lines with upward flow or in any
intermediate position. They will operate satisfactorily in a declining plane (no more than 15º).
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 infor-
mation go to www.P65Warnings.ca.gov.