Buying Guide

34
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
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AHEAD OF THE FLOW
®
Revised 7/20/2018
Class 200 Bronze Check Valves
Horizontal Swing • Regrinding Type • Renewable Seat and Disc • Y-Pattern
200 PSI/13.8 bar saturated steam to 391º F/201º C
400 PSI/27.6 bar non-shock cold working pressure
CONFORMS TO MSS SP-80
T-453-B
Threaded
T-453-B
NPT x NPT
MATERIAL LIST
PART SPECIFICATION
1. Bonnet Bronze ASTM B 61
2. Body Bronze ASTM B 61
3. Hinge Pin
Bronze ASTM B 140 Alloy C31400 or
B 134 Alloy C23000
4. Disc Hanger
Bronze ASTM B 61 or
MPIF SS-316NI-25
5. Seat Disc Bronze ASTM B 61 C92200
6. Hanger Nut Bronze ASTM B 16 C31400
7. Hinge Pin Plug ASTM B 140 Alloy C31600 (not shown)
DIMENSIONS—WEIGHTS—QUANTITIES
Dimensions
Size A B Weight
Master
In. mm. In. mm. In. mm. Lbs. Kg. Ctn. Qty.
¹⁄₄ 8 2.25 57 1.56 40 0.53 0.24 50
³⁄₈ 10 2.25 57 1.56 40 0.54 0.24 50
¹⁄₂ 15 2.63 67 1.75 44 0.60 0.27 50
³⁄₄ 20 3.13 79 2.06 52 0.99 0.45 25
1 25 3.75 95 2.44 62 1.56 0.71 30
1 ¹⁄₄ 32 4.38 111 3.13 79 2.33 1.06 10
1 ¹⁄₂ 40 4.94 125 3.75 95 3.11 1.41 10
2 50 5.81 148 4.50 114 5.33 2.42 5
2 ¹⁄₂ 65 8 .00 203 5.31 135 13.72 6.22 5
3 80 9.25 235 6.25 159 17.64 8.00 4
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
information go to www.P65Warnings.ca.gov.