Azbil HLS Series User Manual

10-6
10-3-3. Retightening
In the following cases, retighten the gland nuts with the specified torque:
a) At the time of an inspection before the installation of the control valve
b) At the time of a test operation or start-up operation of the equipment
c) In case the leakage amount of the gland exceeds the specified value during operation of the
equipment.
If the leakage amount of the gland still exceeds the specified value after retightening, reinstall
the complete set of gland parts. In addition, it is recommended that the gland packing and the
Belleville springs be replaced with new parts.
10-4. Parts List
Part name Actuator model Stem size Material Part No. Qty.
Main packing
PSA1 φ10 mm
P4519 80255384-111 5
Belleville spring SUS304 82571710-101 4
O-ring (small) Viton 82592220-897 1
O-ring (large) Viton 82592221-897 1
Stem connector SCS13A 82557767-101 1
Gland stud SUS304 82559311-012 2
Gland nut SUS304 82592448-163 2
Spring case SUS304 82571708-101 1
Packing follower SUS304 82571711-101 1
Packing follower for O-ring use SUS304 82571715-101 1
Spacer SUS304 82555645-066 1
Spacer for O-ring use SUS304 82555645-566 1
Main packing
HA2 φ10 mm
P4519 80255384-111 5
Belleville spring SUS304 82571710-101 4
O-ring (small) Viton 82592220-897 1
O-ring (large) Viton 82592221-897 1
Stem connector S20C/S25C 82520978-201 1
Gland stud SUS304 82559311-012 2
Gland nut SUS304 82592448-163 2
Spring case SUS304 82571708-101 1
Packing follower SUS304 82571711-101 1
Packing follower for O-ring use SUS304 82571715-101 1
Spacer SUS304 82555645-066 1
Spacer for O-ring use SUS304 82555645-566 1
Main packing
HA2 φ13 mm
P4519 80255385-111 5
Belleville spring SUS304 82559308-101 4
O-ring (small) Viton 82592221-497 1
O-ring (large) Viton 82592222-297 1
Stem connector S20C/S25C 82520978-206 1
Gland stud SUS304 82571706-011 2
Gland nut SUS304 82592448-173 2
Spring case SUS304 82559309-101 1
Packing follower SUS304 82571712-101 1
Packing follower for O-ring use SUS304 82571716-101 1
Spacer SUS304 82555645-166 1
Spacer for O-ring use SUS304 82555645-666 1

Azbil HLS Series Specifications

General

Brand	Azbil
Model	HLS Series
Category	Control Unit
Language	English