Samson 3730 Series - Attachment According to IEC 60534-6

5-10 EB 8384-3 EN
Installation
Î Make sure that the vent plug is locat-
ed at the bottom when the control
valve is installed to allow any con-
densed water that collects to drain
off.
5.5.2 Attachment according to
IEC60534-6
Î See Fig.5-7
Î Required mounting parts and accesso-
ries: Table 5-7
Î Observethetraveltableonpage5-5.
The positioner is attached to the control valve
using a NAMUR bracket (10).
1. Screw the two bolts (14) to the bracket
(9.1) of the stem connector (9), place the
follower plate (3) on top and use the
screws (14.1) for fastening.
Actuator sizes 2800cm² and 1400cm²
with 120mm travel:
− For a travel of 60 mm or smaller,
screw the longer follower plate (3.1)
directly to the stem connector (9).
− Foratravelexceeding60mm,mount
thebracket(16)rstandthenthefol-
lower plate (3) to the bracket togeth-
er with the bolts (14) and screws
(14.1).
2. Mount NAMUR bracket (10) to the con-
trol valve as follows:
− For attachment to the NAMUR rib,
useanM8screw(11)andtoothed
lock washer directly in the yoke hole.
− For attachment to valves with rod-
type yokes, use two U-bolts (15)
around the yoke. Align the NAMUR
bracket (10) according to the em-
bossed scale so that the follower
plate (3) is shifted by half the angle
range to the NAMUR bracket (the
slot of the follower plate is centrally
aligned with the NAMUR bracket at
mid valve travel).
3. Mount connecting plate (6) or pressure
gauge bracket (7) with pressure gauges
(8)onthepositioner.Makesurethatthe
two seals (6.1) are seated properly.
4. Select required lever size (1) M, L or XL
and pin position according to the actua-
tor size and valve travel listed in the trav-
eltableonpage5-5.
If a pin position other than position 35 with
the standard M lever is required or an L or
XL lever size is required. Proceed as de-
scribedinsection5.4.
5. Place positioner on the NAMUR bracket
in such a manner that the follower pin
(2) rests in the slot of the follower plate
(3, 3.1). Adjust the lever (1) correspond-
ingly.
Screw the positioner to the NAMUR
bracket using its two fastening screws.
10
11
1
1
14.1
3
3.1
16
15
14
1
1.2
1.1
2
9.1
9
6.1 6 7 8
Attachment to rod-type yoke
Rodswith20to35mmdiameter
Attachment to NAMUR rib
Additional bracket for
actuators with
2800cm²andtravel≥
60mm
XL and L lever
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower plate
3.1 Follower plate
6 Connecting plate
6.1 Seals
7 Pressure gauge
bracket
8 Pressure gauge
mounting kit
9 Stem connector
9.1 Bracket
10 NAMUR bracket
11 Screw
14 Bolt
14.1 Screws
15 U-bolt
16 Bracket
Fig.5-7: Attachment according to IEC60534-6 (NAMUR)