Akh2.2 - Actuator Sizing Torques - Flowserve AKH2.2 Technical Manual

Ahaus GmbH
von-Braun-Straße 19a
D-48683 Ahaus
Postfach 1162 D-48661 Ahaus
Telefon: +49(0) 2561-686-100
Fax: +49(0) 2561-686-200

AKH2.2 - Actuator Sizing Torques

Packingmaterial: chevron PTFE or PTFE-graphite
• for clean and clear application
0 bar Δ p
Size
015 ½"
020 ¾"
025 1"
032 -
040 1½"
050 2"
065 -
080 3"
100 4"
• for dry and slurry application
0 bar Δ p
Size
015 ½"
020 ¾"
025 1"
032 -
040 1½"
050 2"
065 -
080 3"
100 4"
- Stated torques are sizing torques. No further safety factors are to be applied against these torques.
- The use of ceramic balls in lined valves will result in 15% higher sizing torques.
- The use of C-Balls or V-Balls does not result in change in sizing torques.
- Stated sizing torques are „Break-Open" and „Re-Seating" torques. Running torques are typically 35% below sizing
torques.
- The stated „MAST" value is the Maximum Allowable Stem Torque. Beyond this value permanent deformation /
destruction of liner is to be expected.
- Please note the service conditions of the pressure- / vacuum-temperature-diagrams: register 1, page 13.
Technical Manual
0 psi Δ p 10 bar Δ p
Nm lbf · in Nm
7 62 7
7 62 7
7 62 8
20 177 27
20 177 27
27 239 34
51 451 73
59 522 85
79 699 119
0 psi Δ p 10 bar Δ p
Nm lbf · in Nm
9 81 9
9 81 9
9 81 10
26 230 35
26 230 35
35 311 44
66 587 95
77 679 111
103 909 155
AKH2.2 - atomac ball valve - full port
150 psi Δ p 19 bar Δ p 275 psi Δ p
lbf · in Nm lbf · in
62 8 71
62 8 71
71 8 71
239 34 301
239 34 301
301 45 398
646 93 426
752 108 956
1053 158 1398
150 psi Δ p 19 bar Δ p 275 psi Δ p
lbf · in Nm lbf · in
81 10 92
81 10 92
92 10 92
311 44 391
311 44 391
391 59 518
840 121 1070
978 140 1243
1369 205 1818
Register:
12
Page: 12
Date: 04.1995
Revision: 06.2020
MAST
Nm lbf · in
40 354
40 354
40 354
115 1018
115 1018
130 1151
420 3717
420 3717
420 3717
MAST
Nm lbf · in
40 354
40 354
40 354
115 1018
115 1018
130 1151
420 3717
420 3717
420 3717