Page 249 - Mechanical Products Installation Handbook IH-1000M

VALVES 241 Models B302 and BN302 Grooved End Butterfly Valve
Operating Temperature Range
Model
BN302
Encapsulated Disc Material
EPDM(a) EPDM(b) Nitrile(c)
N/A -20°F to 200°F N/A N/A (-29°C to 93° C)
Grade Grade Grade
“E” “EN” “T” “O”
Grade Fluoroelastomer(d)
B302
-20°F to 200°F (-29°C to 93° C)
N/A
-20°F to 180°F (-29°C to 82° C)
-20°F to 200°F (-29°C to 93° C)
a. Recommended for hot water, dilute acids, alkalis, oil free air, and many chemical services not involving petroleum products. Not recommended for hydrocarbons or steam service.
b. Recommended for NSF 61 Approved for potable water. Not recommended for use with hydrocarbons.
c. Recommendedforpetroleumproducts,vegetableoils,mineraloils,andairwithoils.High-end oil vapor temperature decreases to 150°F (66°C). Not recommended for hot water or hot dry air systems.
d. Recommendedforoxidizingacids,petroleumproducts,hydraulicfluids,lubricants,halogenated hydrocarbons. Not recommended for hot water.
N/A: Not Available
Models B302 and BN302 Grooved End Butterfly Valve Butterfly Valve Torque
Sizes ANSI DN
2-1/2
100 psi
6,9 bar
48
Torque Inch Lbs. Nm
200 psi
13,8 bar
67
300 psi 20,7 bar
83
2
50
48
5
67
8
83
9
65 5 8 9
4 185 251 317 100 21 16 36
3
80
100
11
134
15
168
19
5
125
294
33
410
46
499
56
6 520 150 59
10 1,550 250 175
Notes:
705 890
80 101
2,214 2,654
250 300
8
200
1,070
121
1,495
169
1,798
203
12
300
2,150
243
3,024
342
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• •
The torque values provided in Table B apply to Grade “E” EPDM. When calculating torques for Nitrile or Fluoroelastomer, multiply listed torque by 1.25.
Refer to Technical Data Sheet G310 for additional information.