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V
ALVE
L
UBRICATION
ValvTechnologies metal-seated ball valve requires NO lubrication.
Re-tightening of body (with system de-pressurized) and gland packing bolting
is permissible, if leakage occurs in these areas.
Required Torque values are given in Tables 1 & 2.
The use of Copper-Based Anti-Seize Grease for stud lubrication and Molyb-
denum Disulfide Anti-Seize Grease for packing lubrication is recommended.
Bolt Tension may be decreased to 25% shown in Tables 1 & 2 when other
or no lubrication is used.
TORQUE ft/lbs (Nm)
B7 OR
EQUAL
B8M OR EQUAL
5/16 (8)
12 (16)
4 (5)
3/8 (10)
18 (24)
6 (8)
7/6 (30)
29 (39)
9 (12)
1/2 (13)
45 (61)
13 (18)
9/16 (14)
50 (68)
19 (26)
5/8 (16)
85 (115)
26 (35)
3/4 (19)
150 (203)
45 (61)
7/8 (22)
240 (325)
70 (95)
1 (25)
355 (481)
110 (149)
1-1/8 (29)
510 (691)
155 (210)
1-1/4 (32)
700 (949)
210 (285)
1-3/8 (35)
950 (1288)
290 (393)
1-1/2 (38)
1250 (1695)
370 (502)
1-5/8 (41)
1600 (2169)
480 (651)
1-3/4 (44)
2060 (2793)
500 (678)
1-7/8 (48)
2500 (3390)
750 (1017)
2 (51)
3000 (4067)
900 (1220)
3 (76)
10300 (13965)
3100 (4203)
3-1/2 (89)
16500 (22371)
5000 (6779)
BOLT
SIZE -
INCHES
(mm)
TABLE 1
BODY BOLT TORQUE VALUES
TABLE 2
GLAND TORQUE
STUD
DIAMETER
NOMINAL
BALL
TORQUE VALUE in/lb (Nm)
THREAD
PITCH-
in (mm)
INSIDE
DIAMETER-
in (mm)
GLAND
TORQUE
NEVER
EXCEED
5/16 - 18 (8)
5/8 (16)
48
(5.4)
60
(6.8)
5/16 - 18 (8)
1-1/16 (27)
48
(5.4)
60
(6.8)
3/8 - 16 (10)
2-1/8 (54) 84
(9.5)
105
(11.9)
3/8 - 16 (10)
3-1/16 (78) 84 (9.5)
105
(11.9)
3/8 - 16 (10)
4-1/16 (103) 84 (9.5) 105
(11.9)
7/16 - 14 (11)
-
132
(14.9)
165
(18.7)
1/2 - 13 (13)
5-1/8 (13) 204
(23.1)
225
(25.5)
1/2 - 13 (13)
6-1/16 (154) 204 (23.1) 225 (25.5)
9/16 - 12 (14)
-
252
(28.5)
315
(35.6)
5/8 - 11 (16)
-
396
(44.8) 495 (56.0)
NOTE:
Due to the ValvTechnologies valve’s metal-to-
metal sealing surface operating torques are consid-
erably higher than comparable soft seated ball valves.
OPERATION
Note: Values are for B8M, Class 1 bolting.
