Samson 1400 Instructions d'exploitation télécharger pdf (Page 22)

9. Mount cover (11) on the other side.

Make sure that the vent plug (11.1)

points to the back when the control

valve is installed to allow any con

-

densed water that collects to drain off.

4.2 Attachment according to

IEC 60534-6 (NAMUR)

Refer to Table 3 on page 32 for the required

mounting parts and accessories.

The positioner is attached to the control

valve using a NAMUR bracket (10).

1. Actuator with 175 cm²:

Unscrew the filter from the signal pres-

sure input and first screw the screw re

-

striction (accessories order no.

1400-6964/item no. 0390-1424) into

the input and then the filter.

2. Actuator sizes 120 to 750 cm²:

Screw the two bolts (14) to the bracket

(9.1) of the stem connector (9), place

the follower plate (3) on top and tighten

it using the screws (14.1).

Actuator size 2800 cm² and 1400 cm²

(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) first and then

the follower plate (3) to the bracket

together with the bolts (14) and

screws (14.1).

3. Mount NAMUR bracket (10) to the con

-

trol valve as follows:

–

For attachment to the NAMUR rib,

use an M8 screw (11), washer and

toothed lock washer directly in the

yoke bore.

–

For attachment to valves with

rod-type yokes, use two U-bolts (15)

around the yoke. Align the NAMUR

bracket (10) in such a way that the

slot of the follower plate (3/3.1) is

centrally aligned with the NAMUR

bracket at mid valve travel.

4. If applicable, mount pressure gauge

bracket (7) with pressure gauges or, in

case G ¼ threaded connections are re

-

quired, the connecting plate (6), mak-

ing sure both seal rings (6.1) are

seated properly.

5. Screw a screw restriction (accessories

order no. 1400-6964/item no.

0390-1424) into the signal pressure

output for actuators with diaphragm ar

-

eas smaller than 240 cm².

6. Select required lever (1) size M, L or XL

and pin position according to the actu

-

ator size and valve travels listed in the

table on page 16.

Lever M with pin position 25 or 50:

6.1 Remove follower pin (2) from pin

position 35 and screw it into the

required hole.

Lever L or XL:

6.1 Unscrew the standard lever M from

the shaft of the positioner.

22 EB 8387-3 EN

Attachment to the control valve – Mounting parts and accessories

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