Samson 3310/AT Service manual

Translation of original instructions

EB 8222 EN

Type3310/3278 with positioner

Type3310/AT

Edition December 2016

Type3310/AT and Type3310/3278 Pneumatic Control Valve

Type3310 Segmented Ball Valve

Note on these mounting and operating instructions

These mounting and operating instructions assist you in mounting and operating the device

safely. The instructions are binding for handling SAMSON devices.

ÎFor the safe and proper use of these instructions, read them carefully and keep them for

later reference.

ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service

Department (aftersalesser[email protected]).

The mounting and operating instructions for the devices are included in

the scope of delivery. The latest documentation is available on our website

at www.samson.de > Service & Support > Downloads > Documentation.

Denition of signal words

Hazardous situations which, if not avoided,

will result in death or serious injury

Hazardous situations which, if not avoided,

could result in death or serious injury

Property damage message or malfunction

Additional information

Recommended action

DANGER

WARNING

NOTICE

Note

Tip

2 EB 8222 EN

Contents

EB 8222 EN 3

1 General safety instructions.............................................................................5

2 Design and principle of operation ..................................................................6

2.1 Fail-safe position ............................................................................................6

2.1.1 TypeSRP (single-acting version) ......................................................................6

2.1.2 TypeDAP (double-acting version) ....................................................................8

3 Mounting ......................................................................................................8

3.1 Assembling valve and actuator .......................................................................8

3.1.1 Type3310-SRP ..............................................................................................8

3.1.2 Type3310/3278 ...........................................................................................9

3.2 Mounting position ........................................................................................11

3.3 Signal pressure connection ...........................................................................11

4 Operation...................................................................................................12

4.1 Changing the fail-safe action ........................................................................12

5 Servicing.....................................................................................................12

5.1 Removing the actuator from the valve ............................................................12

5.2 Replace the packing .....................................................................................12

5.3 Replacing the seat ring seal ..........................................................................13

5.4 Assembly ....................................................................................................13

5.5 Replacing the segmented ball, shafts and bearings .........................................15

5.5.1 Disassembly ................................................................................................15

5.5.2 Assembly ....................................................................................................15

6 Changing the characteristic..........................................................................17

7 Tools and tightening torques ........................................................................18

7.1 Special tools ................................................................................................18

7.2 Tightening torques ........................................................................................19

7.2.1 Tightening torques for ange bolts .................................................................19

8 Nameplate..................................................................................................21

9 Accessories .................................................................................................22

10 Technical data .............................................................................................23

11 Customer inquiries ......................................................................................23

4 EB 8222 EN

EB 8222 EN 5

General safety instructions

1 General safety instructions

−The control valve must be mounted, started up or serviced by fully trained

and qualied personnel only; the accepted industry codes and practices are

to be observed. Make sure employees or third persons are not exposed to

any danger.

−All safety instructions and warnings given in these mounting and operating

instructions, particularly those concerning installation, start-up and mainte-

nance, must be strictly observed.

−The control valves comply with the requirements of the European Pressure

Equipment Directive 2014/68/EU. Valves with a CE marking have a decla-

ration of conformity, which includes information about the applied conformity

assessment procedure. The declaration of conformity can be viewed and

downloaded at uhttp://www.samson.de.

−To ensure appropriate use, only use the valve in applications where the oper-

ating pressure and temperatures do not exceed the specications used for siz-

ing the valve at the ordering stage. The manufacturer does not assume any

responsibility for damage caused by external forces or any other external

factors.

−Any hazards that could be caused in the valve by the process medium, the

operating pressure, the signal pressure or by moving parts are to be prevent-

ed by taking appropriate precautions.

−Proper shipping and storage are assumed.

−For installation and maintenance, make sure the relevant section of the pipe-

line is depressurized and, depending on the process medium, drained as

well. Depending on the eld of application, allow the valve to cool down or

heat up to reach ambient temperature before starting any work on it.

−When working on the valve, make sure that the pneumatic air supply as well

as the control signal are disconnected to prevent any hazards caused by

moving parts.

6 EB 8222 EN

Design and principle of operation

2 Design and principle of oper-

ation

The pneumatic control valve consists of the

Type3310 Segmented Ball Valve and either

the SAMSON PFEIFFER TypeAT or the

SAMSON Type3278 Pneumatic Rotary

Actuator.

The control valve is designed for both

throttling and on/off service in process

engineering and plants with industrial

requirements. The control valve is suitable for

liquids, vapors and gases at temperatures

from –29 to +220°C and pressure rating of

Class150 and 300.

The segmented ball valve in valve sizes

NPS1 to 12 is available with a soft-seated

or metal-seated ball. The version used is

marked on the nameplate of the valve body

(see section8).

The process medium ows through the valve.

The signal pressure applied to the rotary ac-

tuator determines the position (opening an-

gle) of the segmented ball (8) and thus the

cross-sectional area of ow between the ball

and body (1). The actuator motion is trans-

mitted to the segmented ball valve by a shaft

with square or key drive. The valve shaft (4)

is sealed by a self-adjusting PTFE V-ring

packing (2.3).

2.1 Fail-safe position

2.1.1 TypeSRP (single-acting

version)

The fail-safe position of the control valve up-

on supply air (signal pressure) failure is de-

termined in Type3310/AT (TypeSRP sin-

gle-acting version) by the version used and

in Type3310/3278 by how the rotary actu-

ator is mounted to the valve.

1 Body

2 Packing gland

2.1 Bearing bushing

2.2 Screws

2.3 V-ring packing

2.4 Washer

2.5 Spring

2.6 Washer

2.7 Spacer

3Yoke

3.1 Screws

4Shaft

4.1 Bearing bushing

4.2 Key drive

4.3 Snap ring

5Support shaft

5.1 Bearing bushing

5.2 Threaded pin

5.3 Clamping bolt

5.4 Locking pins

8 Segmented ball

10 Bottom ange

10.1 Flange gasket

10.2 Flange ring

10.3 Flange bolts

11 Retainer

11.1 Screw

11.2 Washer

11.3 Gasket

11.4 Washer

11.5 Metal tubular seal

11.6 Seat ring (metal)

11.7 Support ring

11.8 Seat ring (PTFE)

12 Type AT Actuator

12.1 Stop bolt

12.2 Stop bolt

13 Type3278 Actuator

13.1 Stop bolt

13.2 Stop bolt

EB 8222 EN 7

Design and principle of operation

12.112 13.2 13.1 13

2.2

2.1

11.3

5.4

5.3

5.1

5.2

4.1

4.3

2.5

2.6

2.7

2.4

2.3

3.1

12.2

4.2

10 10.1 10.3 10.2

11.1

11.2

11.4

11.5

11.6

11.7

11.8

SAMSON PFEIFFER TypeAT Actuator SAMSON Type3278 Actuator

Detail A (seal) is shown in Fig.3.

Note

Fig.1: Sectional drawing of Type3310 Valve

8 EB 8222 EN

Mounting

Fail-close

When the pressure is relieved from the

rotary actuator or the supply air fails, the

actuator springs close the valve. The valve

opens opposing the force of the actuator

springs when the signal pressure increases.

Fail-open

When the pressure is relieved from the

rotary actuator or the supply air fails, the

actuator springs open the valve. The valve

closes opposing the force of the actuator

springs when the signal pressure increases.

2.1.2 TypeDAP (double-acting

version)

The TypeDAP Rotary Actuator (double-act-

ing) has no springs. A dened nal position

is not reached when the supply air fails.

3 Mounting

3.1 Assembling valve and

actuator

3.1.1 Type3310-SRP

Proceed as follows if the valve and actuator

have not been assembled by SAMSON:

In the standard actuator version (SRP =

single-acting with spring return mechanism),

the spring return mechanism is designed to

close clockwise when there is no signal

pressure.

If you require a different direction of rotation

or a double-acting actuator (DAP = double-

acting without spring return mechanism), this

specication must be submitted on ordering

the actuator.

Table1: Type3310-SRP

Fail-safe

position

Springs Characteristic

Fail-close Clockwise Equal percentage

Fail-close Counterclockwise Linear

Fail-open Clockwise Linear

Fail-open Counterclockwise Equal percentage

The square drive allows the actuator to be

mounted on the segmented ball valve offset

at angles of 90° in such a way that it is ei-

ther in the upright or horizontal position to

meet the installation requirements.

Note

EB 8222 EN 9

Mounting

Fail-close

1. Place the segmented ball (8) of the valve

in the CLOSED position (0° angle of ro-

tation).

2. Fasten the yoke (3) to the ange of the

valve shaft using two or four screws (de-

pending on the valve size).

3. If necessary, place the shaft adapter on

the valve shaft. Slide the actuator over

the adapter or valve shaft (4) and fasten

it onto the yoke with four screws.

4. Adjust the stop bolt (12.1 or 12.2 de-

pending on the direction of rotation) to

the point where the valve is completely

closed and align the markings on the

shaft and packing gland.

5. Lock the position of the stop bolt with the

lock nut.

6. Apply a signal pressure to the signal

pressure connection which corresponds

to the number of actuator springs (see

actuator nameplate).

7. Turn the other stop bolt until the segment-

ed ball stops at an opening angle of 90°.

8. Lock the position of the stop bolt with the

lock nut.

Fail-open

1. Place the segmented ball (8) of the valve

in the OPEN position (90° angle of rota-

tion).

2. Fasten the yoke (3) to the ange of the

valve shaft using two or four screws (de-

pending on the valve size).

3. If necessary, place the shaft adapter on

the valve shaft. Slide the actuator over

the adapter or valve shaft (4) and fasten

it onto the yoke (3) with four screws

(3.1).

4. Adjust the stop bolt (12.1 or 12.2 de-

pending on the direction of rotation) to

the point where the valve is completely

open at 90° and align the markings on

the shaft and packing gland.

5. Lock the position of the stop bolt with the

lock nut.

6. Apply a signal pressure to the signal

pressure connection which corresponds

to the number of actuator springs (see

actuator nameplate).

7. Turn the other stop bolt until the segment-

ed ball is completely closed and align the

markings on the shaft and packing

gland.

8. Lock the position of the stop bolt with the

lock nut.

3.1.2 Type3310/3278

If the valve and actuator have not been as-

sembled by SAMSON, mount the actuator

onto the body ange 1 or 2 depending on

the characteristic and fail-safe position.

'1' or '2' is cast on the corresponding side of

the body.

Table2: Type3310/3278

Fail-safe

position

Characteristic Body ange

Fail-close Equal percentage 2

Fail-close Linear 1

Fail-open Equal percentage 1

Fail-open Linear 2

10 EB 8222 EN

Mounting

The four feather key notches on the actuator

shaft arranged every 90° allow the rotary

actuator to be mounted on the segmented

ball valve offset at angles of 90° in such a

way that it is either in the upright or horizon-

tal position to meet the installation require-

ments.

Fail-close

1. Completely undo both stop bolts (13.1

and 13.2) on the rotary actuator. Turn

the stop bolt (13.2) clockwise until the

grooves of the actuator shaft are aligned

with the actuator axis horizontally or ver-

tically.

2. Place the segmented ball (8) of the valve

in the CLOSED position (0° angle of ro-

tation).

3. Fasten the yoke (3) to the ange of the

valve shaft using two or four screws (de-

pending on the valve size).

4. Slide the actuator over the valve shaft (4)

and fasten it onto the yoke (3) with four

screws.

5. Undo the stop bolt (13.2) again.

6. Adjust the stop bolt (13.2) to the point

where the valve is completely closed and

align the markings on the shaft and

packing gland.

7. Apply a supply pressure required for the

spring range (see actuator nameplate) to

the loading pressure connection to open

the valve.

8. Turn the stop bolt (13.1) clockwise until

the segmented ball (8) of the valve is in

the OPEN position (90° angle of rota-

tion).

9. Lock the position of both stop bolts with

the lock nuts.

Fail-open

1. Completely undo both stop bolts (13.1

and 13.2) on the rotary actuator. Turn

the stop bolt (13.1) clockwise until the

grooves of the actuator shaft are aligned

with the actuator axis horizontally or ver-

tically.

2. Place the segmented ball (8) of the valve

in the OPEN position (90° angle of rota-

tion).

3. Fasten the yoke (3) to the ange of the

valve shaft using two or four screws (de-

pending on the valve size).

4. Slide the actuator over the valve shaft (4)

and fasten it onto the yoke (3) with four

screws.

5. Undo the stop bolt (13.1) again.

6. Apply a supply pressure required for the

spring range (see actuator nameplate) to

the loading pressure connection to close

the valve.

7. Adjust the stop bolt (13.1) to the point

where the segmented ball is completely

closed and align the markings on the

shaft and packing gland.

8. Disconnect the supply air from loading

pressure connection.

9. Turn the stop bolt (13.2) clockwise until

the segmented ball (8) of the valve is in

the OPEN position (90° angle of rota-

tion).

10. Lock the position of both stop bolts with

the lock nuts.

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