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Assembly

After transportation, reassemble the valve as
follows:

Observe tightening torques in Table 1!

1. Remove stopper (25) and clean inside

the protective cap.

2. Unthread nut (22) with 24 mm socket

wrench.

3. Loosen nut (5.3) and remove protective

cap (23).

4. Place the special tool with 24 mm socket

wrench in such a way that the labeling
"assemble/montieren" faces upwards. In
case of DN 100 and 150 (NPS 4 and 6)
valves, screw on nut (20) as far as it will
go by hand.

5. Screw top section of the plug stem exten-

sion (6.3a) onto thread of the lower sec-
tion (6.3b) by hand.

6. Insert 17 mm socket wrench and tighten

top section of the plug stem extension
(6.3a) with the socket wrench, observing
the tightening torques in Table 2.

7. Insert seal (5.5) into flanged section.

Slide valve bonnet carefully over the
plug stem extension (6.3a) to ensure that
the packing does not get damaged and
place it on the flanged section.

8. Screw on nut (5.3) and tighten.
9. Tighten guide bushing (5.2) as far as it

will go.

10. Thread lock nut (6.2) and nut (6.1)

loosely onto the plug stem extension
(6.3a).

11. Mount actuator and adjust the lower or

upper bench range as described in sec-
tion 2.

7

Customer inquiries

Please submit the following details:

4

Type designation and order number (on
nameplate)

4

Serial number, nominal size and version
of the valve

4

Pressure and temperature of the process
medium

4

Flow rate in m³/h

4

Bench range (spring range) (e.g. 0.2 to
1 bar) of the actuator

4

Installation drawing

Dimensions

Refer to the Data Sheet T 8093 EN for the
dimensions and weights of the various valve
versions.

EB 8093 EN

13

Customer inquiries

Summary of Contents for 3248-1

Page 1: ...ol Valve Type 3248 1 and Type 3248 7 Mounting and Operating Instructions EB 8093 EN Edition September 2008 Fig 1 Type 3248 as globe pattern valve and angle pattern valve both fitted with Type 3277 Pne...

Page 2: ...ce 8 5 1 Replacing packing seat and plug 9 6 Version with split plug stem extension 11 7 Customer inquiries 13 2 EB 8093 EN Contents Note Non electrical actuators and valves do not have their own pote...

Page 3: ...he order The manufacturer does not assume any responsibility for damage caused by external forces or any other external influence 4 Any hazards which could be caused in the control valve by the proces...

Page 4: ...V ring packing 4 2 Fail safe position Depending on how the springs 8 3 are ar ranged in the actuator the control valve as sumes two different fail safe positions Actuator stem extends When the pressur...

Page 5: ...nd principle of operation Fig 2 Sectional drawings Top section 6 3a Nut Bottom section 6 3b Version with split plug stem extension refer to section 6 Type 3271 Actuator Type 3277 Actuator Globe valve...

Page 6: ...sion 4 Place the actuator on the valve bonnet 5 and screw tight using the annular nut 8 2 5 Read the nameplate on the actuator to determine which bench range signal range with pretensioned springs and...

Page 7: ...range of 0 2 to 1 bar the springs are to be pretensioned by 0 1 bar for example the bench range is shifted by 0 1 bar to 0 3 bar When adjusting the valve a signal pressure of 0 3 bar is to be set as...

Page 8: ...e of the bottom dia phragm case 4 Operation To reverse the direction of action refer to Mounting and Operating Instructions of the respective pneumatic actuator EB 8310 EN for Type 3271 and EB 8311 EN...

Page 9: ...between actuator stem and plug stem and unscrew annular nut 8 2 2 Lift the actuator off the valve Caution To avoid damaging the metal bellows make sure that no torque is transmitted to the bellows we...

Page 10: ...Check that both washers 6 8 are still in the plug stem extension Screw the plug stem tightly into the plug stem extension Tightening torque 50 Nm with DN 25 to 80 and 80 Nm with DN 100 to 150 Seat If...

Page 11: ...escribed in sec tion 2 6 Version with split plug stem extension To keep the overall height of the valve as small as possible for transportation purposes in cold box installations the actuator and valv...

Page 12: ...sem ble demontieren faces upwards As the needle bearing of the tool can only be turned in one direction it must be placed turned by 180 as required for assembly or disassembly Insert 17 mm socket wren...

Page 13: ...in Table 2 7 Insert seal 5 5 into flanged section Slide valve bonnet carefully over the plug stem extension 6 3a to ensure that the packing does not get damaged and place it on the flanged section 8 S...

Page 14: ...14 EB 8093 EN...

Page 15: ...EB 8093 EN 15...

Page 16: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de EB 8093 EN S Z 2008 09...

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