Emerson Enardo 850 Series Instruction Manual page 10

850 and 950 Series
NOMINAL PIPE DIAMETER
1
1-1/4
1-1/2
2
2-1/2
3
3-1/2
4
6
8
10
12
14
16
18
20
24
Assumptions: Use of SAE grade 5 bolts or studs or stronger. No lubricant. Compressed mineral fiber material or similar.
Notes: If lubricant is used on bolts, apply torque reduction factor listed in Table 3. For best results, hardened steel washers should be used on all cast flange bolted connections.
NOMINAL PIPE DIAMETER
1
1-1/4
1-1/2
2
2-1/2
3
3-1/2
4
6
8
10
12
14
16
18
20
24
8 API
20 API
24 API
Assumptions: Use of SAE grade 5 bolts or studs or stronger. No lubricant. Elastomer <70 Durometer Shore A.
Notes: Flat faced flanges should never be mated to a raised face flange for installation. If lubricant is used on bolts, apply torque reduction factor listed in Table 3. For best results,
hardened steel washers should be used on all cast flange bolted connections.
DESCRIPTION
Machine Oil
API SA2 Grease
Nickel-based Lubricant
Copper-based Lubricant
Heavy-Duty Lubricating Paste
10
Table 1. Torque Specifications - Raised Face Flange, Steel Only
NUMBER OF BOLTS
4
4
4
4
4
4
8
8
8
8
12
12
12
16
16
20
24
Table 2. Torque Specifications - Flat Face Flange, Steel or Aluminum
NUMBER OF BOLTS
4
4
4
4
4
4
8
8
8
8
12
12
12
16
16
20
24
16
16
20
Table 3. Torque Reduction Factors per Lubricant
COEFFICIENT OF FRICTION
BOLT DIAMETER, IN.
0.50
0.50
0.50
0.63
0.63
0.63
0.63
0.63
0.75
0.75
0.88
0.88
1.00
1.00
1.13
1.13
1.25
BOLT DIAMETER, IN.
0.50
0.50
0.50
0.63
0.63
0.63
0.63
0.63
0.75
0.75
0.88
0.88
1.00
1.00
1.13
1.13
1.25
0.50
0.63
0.63
MULTIPLY TORQUE VALUE IN TABLE BY
f = 0.15
f = 0.12
f = 0.11
f = 0.10
f = 0.06
TORQUE, FT-LBS
9
13
18
35
41
60
34
43
80
109
101
135
168
159
244
214
253
TORQUE, FT-LBS
14
16
18
32
43
47
26
32
49
68
69
98
138
125
142
135
156
20
75
75
0.75
0.60
0.55
0.50
0.30