SPX APV DELTA SWmini4 Operating Manual

Read and understand this manual prior to
operating or servicing this product.

Operating Manual

DELTA SWmini4

Single Seat Valve DN10, 15, 20

SWmini4-UK0.qxd / 08.2004

1. General Terms 2

2. Safety Instructions 2

3. Mode of Operation 3

4. Auxiliary Equipment 4

5. Installation 5

5.1 Welding Instructions 6

6. Dimensions / Weights 7

6.1 Dimensions / Weights 8

UK

Table of Contents : Page:

SWmini 4 with weld ends

SWmini 4 with clamp connection

7. Technical Data 9

8. Materials 10

9. Maintenance 11

10. Service Instructions 12 - 14

Shut-Off Valve SWmini41 - 42

11. Service Instructions 15 - 17

Change-Over Valve SWmini43 - 44

12. Service Instructions 18

Actuator

13. Assembly Tool 19

14. Trouble Shooting 20

15. Spare Parts Lists
SWmini 41 - 44 -FS, VSM, CU DN10,15,20 RN 01.054.815
SWmini 41 - 44 -FS, VSM, CU 1/2”, 3/4”, 1” RN 01.054.816
Actuator RN 01.054.88

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

1

SWmini4-UK0.qxd / 08.2004

UK

1. General Terms

This operating manual has to be read carefully and observed by
the competent operating and maintenance personnel.

We have to point out that we will not accept any liability for damage
or malfunctions resulting from the non-compliance with this
operating manual.

Descriptions and data given herein are subject to technical
changes.

2. Safety Instructions

!

DANGER!

- The technical safety symbol draws your attention to important
directions for operating safety. You will find it wherever the
activities described are bearing risks of personal injury.

- Electric and pneumatic connections must be separated.

- Before any maintenance of the valve, the line system must be

depressurized.

- Do not reach into the open valve.

- Risk of injury by suddenly operating valve. In dismantled state there
is the risk of bruising at movable parts of the valve.

- Observe service instructions to ensure safe maintenance
of the valve.

- Attention!

With valve design NC (normally closed / air-to-raise,
spring-to-lower): Before releasing the housing screws, the
valve insert must be relieved by controlling the actuator.

- The welded actuator is under spring load, do not open it by force.

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

2

SWmini4-UK0.qxd / 08.2004

UK

3. Mode of Operation

Shut-off valve

actuator

A

optical

valve position

indicator

yoke

valve housing

The Shut-Off and Change-Over Valves DELTA SWmini4
(DN10, 15, 20) have been developed for the use in the brewing
and beverage industries, in dairy and food applications as
well as for the chemical and pharmaceutical industries.

The valves are designed for universal applications and stand
out for their increased mechanical reliability and absolute ease
of handling.

The function of the DELTA SWmini4 valve is to shut off and
to change over line sections.

- Operation by pneumatic actuator with air connection at (A),
reset by spring force.

- By different assembly of the actuator, the following designs
are possible:

NC (FS): actuator normally closed (air-to-raise, spring-to-lower)
NO (FH): actuator normally open (air-to-lower, spring-to-raise)

(illustrations show NC design)

- The inner parts of the actuator are maitenance-free.

- As standard, the valves are manufactured without support
for proximity switches.

Change-over valve

actuator

A

optical

valve position

indicator

yoke

upper

valve housing

- The valve position is indicated optically in the yoke area.
Indication in the upper yoke bore:
Valve position closed NC (FS).

- The cleaning of the inner area of the valve is carried out during
cleaning of the line system.

lower

valve housing

Single Seat Valve DN10, 15, 20

3

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

UK

4. Auxiliary Equipment

support for

proximity switch

control unit

with adapter

Valve position indication

- A proximity switch holder for the limit position NC or NO
of the valve shaft can be installed directly on the actutor.

- We recommend to use our APV standard types:
operating distance: 5 mm / diameter: 11 mm.

If the operator decides to use valve position indicators other
than APV type, we cannot take over any guarantee for a
faultless function.

- Control Unit
The assembly of a control unit on the DELTA SWmini4 valve
is possible.

The following different designs are available:

1 solenoid valve (EMV)

Direct Connect CU31 Direct Connect

ref.- No.: 16 - 31 - 232/93

Profibus CU21V

ref.- No.: 16 - 31 - 236/93

Device Net CU31 Device Net

ref.- No.: 16 - 31 - 240/93

AS - Interface CU31 AS - Interface

ref.- No.: 16 - 31 - 244/93

valve housing with

clamp connection

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

- For the installation of the control unit on the SWmini 4 valve
two adapters are required.

adapter

designation : CU adapter - SWmini4

ref.-No.: 08 - 48 - 355/93

designation : CU 2 adapter - SW4 / SD4 / M4

ref.-No.: 08 - 48 - 415/93

Connections: Clamp connection according to ISO 2852

Valves are available complete with clamp
connections.
The combination of weld ends and
clamp connections is possible.

4

SWmini4-UK0.qxd / 08.2004

UK

5. Installation

shut-off valve

change-over valve

yoke

- Installation has to be done in such a way that fluids can drain
off the valve housing and is preferably to be realized in vertical
position.

- Shut-off valve SWmini41 / 42:
The valve housings can be welded direct into the pipeline
(completely dismantable valve insert with actuator).

- Change-over valve SWmini 43 / 44:
One or two detachable connections e.g. (clamps, etc.) must

!

be assembled to the ports of the upper housing to provide for
disassembly (e.g. for seal replacement).

- The position of the medium and upper housing ports to each other
can be mounted staggered by 90othrough the screw connections.

upper

valve housing

housing seal

clamp connection

lower

valve housing

- Attention: Observe welding instructions.

Single Seat Valve DN10, 15, 20

5

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

upper

valve housing

clamp connection

UK

5.1 Welding Instructions

Shut-off valve SWmini41 / 42

- Before welding of the valves, remove the valve insert from the
housing (see chapter 10.I.c. - d.).
See to a careful handling of the parts to avoid damage.

Change-over valve SW mini 43 / 44

- The lower housing part (1), only, can be welded direct
into the pipe system.
Before welding of the lower housing, partly dismantle the valve
(see chapter 11.I.d. - e. and 11.II. a. - d.).
Remove the lower housing seal from the upper housing.
Provide the upper housing and the upper pipeline with detachable
connections (flange, clamps, etc.).
See to a careful handling to avoid damage to the parts.

housing seal

lower

valve housing

- Welding may only be carried out by certified welders (EN 287-1).
(Seam quality EN 25817 „B“).

- The welding of the valve housings must be undertaken in such a
way that deformation strain cannot be transfered from the outside
to the valve body.

- The preparation of the weld must be carried out in butt manner
as a square butt joint without air.
(Consider shrinkage!)

- TIG orbital welding is best!

- After welding of the valve housings or of the mating flanges and
after work at the pipelines, the corresponding parts of the
installation or pipelines must be cleaned from welding residues
and soiling. If these cleaning instructions are not observed,
welding residues and dirt particles can settle in the valve and
cause damage.

- Any damage resulting from the nonobservance of these welding
instructions is not subject to our guarantee.

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

6

SWmini4-UK0.qxd / 08.2004

UK

6. Dimensions / Weights

Shut-off valve SWmini 41, 42

with weld ends

53

Change-over valve SWmini 43, 44

with weld ends

53

Proximity switch holder

C

C C

weights in kg

SWmini 41, 42
DN 10 1,55
DN 15 1,6
DN 20 1,75

weights in kg

SWmini 43, 44
DN 10 1,8
DN 15 1,9
DN 20 2,1

SWmini4 with weld ends

dimensions in mm

DN A B C D E G L L1 L / L1 with control unit

SWmini SWmini

41 / 42 43 / 44

10 133 25 45 10 20 60 218 238 295 315
15 135 28 45 16 26 60 223 249 300 326
20 137 30 45 20 30 60 227 257 304 334

Single Seat Valve DN10, 15, 20

7

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

UK

6.1 Dimensions / Weights

Shut-off Valve SWmini 41, 42

with clamp connection

53

C

Change-over valve SWmini 43, 44

with clamp connection

53

Proximity switch holder

C C

weights in kg

SWmini 41, 42
DN 10 1,6
DN 15 1,65
DN 20 1,8

weights in kg

SWmini 43, 44
DN 10 1,9
DN 15 2,0
DN 20 2,3

SWmini4 with clamp connection

dimensions in mm

DN A B C D E F G L L1 L / L1 with control unit

SWmini SWmini

41 / 42 43 / 44

10 133 30 50 10 20 34 60 223 242 299 319
15 135 33 50 16 26 34 60 228 254 305 331
20 137 35 50 20 30 34 60 232 262 309 339

inch

1/2” 133 30 50 10 20 34 60 223 242 299 319
3/4” 135 33 50 16 26 34 60 228 254 305 331

1” 137 35 50 22,6 30 50,5 60 232 262 309 339

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

8

SWmini4-UK0.qxd / 08.2004

UK

7. Technical Data

line pressure : 5 bar
max. operating temperature : 135°C EPDM, HNBR

*FPM, *VMQ

short-term load: 140°C EPDM, HNBR

*FPM, *VMQ
*(no steam)

air connection (for hose) : 6x1mm standard

1/4” option

max. pneumatic air pressure : 10 bar
min. pneumatic air pressure : 6 bar

(Use dry and clean pneumatic air, only.)

shut-off valve change-over valve

SWmini 41, 42 SWmini 43, 44

stroke closing pressure stroke closing pressure

DN in mm in bar in mm in bar

10 4 8 5 8
15 7 8 7 8
20 7 6,5 7 6,5

kvs values in m3/h

shut-off valve change-over valve

DN

10 2,7 m³/h 2,5 m³/h
15 7,0 m³/h 5,0 m³/h

20 9,0 m³/h 7,5 m3/h

Single Seat Valve DN10, 15, 20

9

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

UK

8. Materials

product wetted parts

- housing, upper housing, yoke,
valve shaft : 1.4404

other parts

- actuator, actuator screw, centering washer,
screws, guide rod, nut : 1.4301

- cover, covering cap,
proximity switch holder : PA 12 schwarz

seals

- housing seals : EPDM
option : FPM, VMQ, HNBR

- shaft seal : EPDM / PTFE
option : VMQ / PTFE

FPM / PTFE
HNBR / PTFE

- actuator seal : quadring NBR

o-ring NBR

- guide bush PTFE

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

10

SWmini4-UK0.qxd / 08.2004

UK

9. Maintenance

- The maintenance intervals depend on the corresponding
application and are to be determined by the operator himself
carrying out temporary checks.

- Required tools:

- 1x spanner SW 8

- 1x spanner SW 13

- 1x spanner SW 17

- 1x spanner SW 19

- For the valve service we supply complete seal kits
(see pare parts lists).
With the order of a complete seal kit, the appropriate
grease is included in the scope of supply.

- Exchange of seals is done according to service instructions.

- Assembly of the valve and change of valve design
NC (FS) or NO (FH), see service instructions.

- Installation of actuator, see service instructions.

- The inner parts of the actuator are maintenance-free.

- Slightly grease all seals before their installation.

Attention! No matter what type of application, use only

those greases being suited for the respective
seal material !

Recommendation:

APV food-grade-grease for EPDM, FPM, HNBR and NBR
(0,75 kg/ tin - ref.-No. 000 70-01-019/93)
(60 g/ tube - ref.-No. 000 70-01-018/93)

oder

APV food-grade-grease for VMQ (Silicone)
(0,6 kg/ tin - ref.-No. 000 70-01-017/93)
(60 g/ tube - ref.-No. 000 70-01-016/93)

!!! Do not use grease containing mineral oil for EPDM seals !!!
!!! Do not use Silicone-based grease for VMQ seals !!!

Assembly tool for seat seal

To simplify the installation of the seat seal in the valve shaft,
the following assembly tools are available.

11

Assembly tool for

SWmini 41 / 42 / 43 / 44

DN ref.-No.:

10 000 - 51 - 13 - 052/17
15 000 - 51 - 13 - 051/17
20 000 - 51 - 13 - 050/17

Single Seat Valve DN10, 15, 20

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

UK

10. Service Instructions Shut-Off Valve

Shut-off valve DELTA SWmini4

14

The item numbers refer to the corresponding spare parts lists

SWmini 41-44 FS, VSM, CU RN 01.054.815

RN 01.054.816

I. Dismantling from the line system

a. Shut off line pressure and discharge lines if possible.
b. Detach electric connections.

- Proximity switches at the proximity switch holder.

- Control Unit, see operating manual.

c. Valve design NC: control actuator with air.

Do not reach for movable parts!

!

Risk of injury.

d. Remove screws (14) M5x12.

Withdraw the insert from the housing .

e. Cut off compressed air and remove compressed air supply.

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

housing

SWmini41

housing

SWmini42

12

SWmini4-UK0.qxd / 08.2004

17

16

15

UK

10. Service Instructions Shut-Off Valve

II. Dismantling of wear parts

a. Remove the covering cap (17).

- Valve design with proximity switch holder:
Remove proximity switch holder (18) and actuator screw (19).

- Valve design with control unit:

Remove cover, actuator screw and guide rod extension (24).
Remove the control unit.

b. Unscrew the safety nut (16) while holding up the centering washer

(15), take off centering washer.

c. Withdraw the valve shaft (4) with guide rod (12) to the bottom.
d. Separate the yoke (9) from the actuator (13) by releasing the

hex. screws (10).
Remove the washer (11) from the yoke.

e. Remove the o-ring (20).
f. Take off the seat seal (3) by means of a pointed object from the

valve shaft.

g. Remove the housing seal (5).

20

13

10

8

9

5

h. Dismantle guide bush (8), seat seal (7) and shaft seal (6)

from the yoke.

Replacement of actuator seals, see chapter 12,
Service Instructions Actuator.

!

13

7, 6

3

Single Seat Valve DN10, 15, 20

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

UK

10. Service Instructions Shut-Off Valve

yoke

8

6

7

III. Installation of wear parts

a. Insert the guide bush (8) into the yoke (9).

Insert the shaft seal (6) and press in the slightly greased
seat seal (3).

See to the correct mounting direction.

b. Slightly grease the housing seal (5) and insert it into the groove of

the yoke.

c. Install the seat seal (7) by means of the assembly tool

(see item 13.) in the valve shaft (4).

5

17
16

15
20

13

d. Place the washer (11) in the yoke (9).

Mount the yoke at the actuator (13).

e. Slide the valve shaft (4) through the yoke (9) and the actuator (13),

place the centering washer (15) and tighten it with the safety nut

(16). Hold up the centering washer during this process.
f. Insert the o-ring (20) in the actuator cover.
g. Fasten the covering cap (17).

- Valve design with proximity switch holder:

Fasten actuator screw (19) and proximity switch holder (18).

- Valve design with control unit:

Fasten control unit (without cover).

Fasten guide rod extension (24) and actuator screw.

Tighten the cover.

IV. Assembly of valve

14

a. Carefully place the valve insert in the housing and slightly screw the

hex. screws (14) M5x12 in the threaded bore (do not tighten).

The housing seal (5) must not be damaged during this process.

b. Connect compressed air supply.
c. Valve design NC: control actuator with air.

9

5

4

!

Do not reach for movable valve parts!

Risk of injury by sudden valve actuation.
d. Tighten the hex. screws (14).
e. Disconnect pneumatic air.
f. Connect electric connections.

- Plug proximity switches in their holders and fasten them.

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

14

SWmini4-UK0.qxd / 08.2004

UK

11. Service Instructions Change-Over Valve

Change-over valve DELTA SWmini4

14

The item numbers refer to the corresponding spare parts lists

SWmini 41-44 FS, VSM, CU RN 01.054.815

I. Disassembly from line system

a. Shut off line pressure and discharge lines if possible.
b. Release clamp and flange connection at the upper housing.
c. Detach electric connections.

- Proximity switch from holder.

- Control Unit, see operating manual.

d. Valve design NC: control actuator with air.

Do not reach for movable parts!

!

Risk of injury by sudden valve actuation.

e. Remove the hex. screws (14) M5x40.

Withdraw the valve insert with the upper housing from
the lower housing.

f. Cut off compressed air and remove compressed air supply.

RN 01.054.816

15

Single Seat Valve DN10, 15, 20

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

UK

11. Service Instructions Change-Over Valve

II. Dismantling of wear parts

17

12

20

16

15

a. Remove the covering cap (17).

- Valve design with proximity switch holder:

Remove proximity switch holder (18) and actuator screw (19).

- Valve design with control unit:

Remove cover, actuator screw and guide rod extension (24).

Remove the control unit.

b. Unscrew the safety nut (16) while holding up the centering washer

(15), take off centering washer.
c. Withdraw the valve shaft (4) with guide rod (12) to the bottom.
d. Withdraw upper housing (2) and remove the housing seal (5).
e. Separate the yoke (9) from the actuator (13) by releasing

the hex. screws (10).

Remove the washer (11) from the yoke.

f. Remove the o-ring (20).
g. Take off the seat seal (3) by means of a pointed object from the

valve shaft (4).

13

h. Remove the housing seal (5) from the yoke (9).
i. Dismantle the guide bush (8), seat seal (7) and shaft seal (6)

from the yoke.

9
8

10

2

3

7, 6

5

5

4

Replacement of actuator seals, see chapter 12,

Service Instructions Actuator.

!

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

16

SWmini4-UK0.qxd / 08.2004

UK

11. Service Instructions Change-Over Valve

yoke

8

6

7

17
16

15

20

III. Installation of wear parts

a. Insert the guide bush (8) into the yoke (9).

Insert the shaft seal (6) and press in the slightly greased
seat seal (7).

See to the correct mounting direction.

b. Slightly grease the housing seals (5) and insert them into the

groove of the yoke (9) and of the upper housing (2).

c. Install the seat seal (3) by means of the assembly tool

(see item 13.) in the valve shaft (4).

5

13

9

d. Place the washer (11) in the yoke (9).

Mount the yoke at the actuator (13).

e. Press the yoke with actuator in the upper housing (2).

Attention: Do not damage the housing seal (5).

f. Slide the valve shaft (4) through the housing (2), yoke (9) and

actuator (13), place the centering washer (15) and tighten it
with the safety nut (16). Hold up the centering washer during
this process.

g. Insert the o-ring (20) in the actuator cover.
h. Fasten the covering cap (17).

- Valve design with proximity switch holder:

Fasten actuator screw (19) and proximity switch holder (18).

- Valve design with control unit:

Fasten control unit (without cover).
Fasten guide rod extension (24) and actuator screw.
Tighten the cover.

IV. Assembly of valve

Observe bore positions of housing and yoke.

17

10

5

2

5
4

14

1

a. Carefully place the valve insert in the housing (1). Check the correct

fit of the seal of the clamp or flange connection at the upper housing
during this process.
Attention: The housing seal (5) must not be damaged

during this process.

b. Slightly screw the hex. screws (14) M5x40 in the threaded bores

(do not tighten).

c. Connect compressed air supply.
d. Valve design NC: control actuator with air.

Do not reach for movable valve parts!

!

Risk of injury by sudden valve actuation.

e. Tighten the hex. screws (14).
f. Disconnect pneumatic air.
g. Firmly tighten clamp and flange connections.

h. Connect electric connections.

- Plug proximity switches in their holders and fasten them.

Single Seat Valve DN10, 15, 20

Operating Manual : rev. 0

DELTA SWmini4

SWmini4-UK0.qxd / 08.2004

actuator cover

quadring

5

piston rod

short

projection

UK

12. Service Instructions Actuator

Actuator

The item numbers refer to the corresponding spare parts lists

Actuator: RN 01.054.88

SWmini 41-44: RN 01.054.815 / RN 01.054.816

I. Disassembly

Attention:

Before starting the disassembly, see to the valve design NC or NO.
a. Release hex. screws (5) and remove actuator cover (2) or adapter

SWmini4 (21) from actuator (13).

b. Remove quadrings (6) from the grooves.

II. Assembly

a. Provide quadrings (6) with a thin grease layer and press them

in the seal grooves.

quadring

actuator

long

projection

b. Fasten actuator cover or SWmini4 adapter on the actuator

by means of the hex. screws (5).

Attention: Observe valve design NC or NO.

- short projection of piston rod = design NC

- long projection of piston rod = design NO

III. Change of valve position NC/NO

By turning the actuator by 180othe required design NC or NO

can be determined.

NC (FS) = normally closed (air-to-raise, spring-to-lower)

NO (FH) = normally open (air-to-lower, spring-to-raise)

Crucial for the reconstruction is the assembly of the actuator cover.

Assembly of actuator cover:

- short projection of piston rod = design NC (FS)

- long projection of piston rod = design NO (FH)

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

18

SWmini4-UK0.qxd / 08.2004

nut

thrust ring

ring

seat seal

housing

shell

13. Assembly Tool for Seat Seal

The assembly tool consists of:

- nut

- thrust ring

- ring with venting nose
(to be used for the installation of the seat seal in

position + , see illustration).

- two shells, one with venting nose
(to be used for the installation of the seat seal in

position , see illustration).

- housing

- threaded bolt

Installation of seat seal in valve shaft

1. Insert the valve shaft in the housing in such a way that

the seal groove is in the housing.

2. Clamp the shaft in the housing by means of the threaded bolt
(observe the corresponding design SW41 or SW43).
Clamp the housing in a vice.

1 2

3

UK

1

SW 41

SW 43

identification

SW41

threaded bolt

2

SW 43

identification

SW43

3. Installation +

1 2

Provide the seat seal with a thin layer of APV food-grade grease.
Place the seal on the ring with venting nose until it stops.
Introduce the ring with the installed seat seal in the housing and

shell

3

press it down to a sensible stop.

4. Installation

3

Provide the seat seal with a thin layer of APV food-grade grease.
Place the two shells around the reduced shaft and slide the seat
seal over the shaft and over the shells.

5. Slide the thrust ring on the seat seal. Screw on the groove nut and
tighten it with a hook spanner until it stops.

6. Release the groove nut. Take thrust ring and ring (shells) off the
housing.

7. Take housing out of the vice.

SW 41

8. Unscrew threaded bolts. Take valve shaft from the housing.

Check the even fit of the seat seal.

19

DN

10
15
20

Assembly tool for

SWmini 41 / 42 / 43 / 44

ref.-No.:

000 - 51 -13 -052/17
000 - 51 -13 -051/17
000 - 51 -13 -050/17

Single Seat Valve DN10, 15, 20

DELTA SWmini4

Operating Manual : rev. 0

SWmini4-UK0.qxd / 08.2004

14. Trouble Shooting

Trouble Remedy

Leakage between yoke and housing Replace upper housing seal (5)

Leakage between upper and
lower housing Replace lower housing seal (5) .

Leakage out of the lower yoke bore Replace guide bush (8), shaft seal (6) and

seat seal (7).

! Check surface of valve shaft,

replace valve shaft if damaged
(see instructions for
replacement of guide rod).

Actuator

UK

Air escapes permanently at the upper und lower
piston rod Replace quadrings (6).

Air escapes permanently from the venting plug Replace complete actuator (13).

guide rod (12)

reception for

guide rod

Instructions

for replacement of guide rod

a. Unscrew the guide rod (12) from the lower

valve shaft (4).

b. Clean the valve shaft

(remove grease and impurities).

c. Apply a drop of a screw locker

(e.g. type: Loctite-semi-solid) in the area of the
threaded bore of the lower valve shaft

(see sketch 1).

d. Clamp the valve shaft in a vice.

(Attention: use protective cover.)

e. Screw in guide rod and tighten it.

sketch 1

apply screw locker

in the

threaded bore

valve shaft (4)

Single Seat Valve DN10, 15, 20
DELTA SWmini4
Operating Manual : rev. 0

15. Spare Parts Lists

(see annex)

20

Your local contact:

APV
Zechenstraße 49
D-59425 Unna

Phone: [phone] Fax: [phone] / 108-210

For more information about our worldwide locations, approvals, certifications, and local representatives, please visit www.apv.com.

Copyright © 2008 SPX Corporation

The information contained in this document, including any specifications and other product details, are subject to change without notice.
While we have taken care to ensure the information is accurate at the time of going to press, we assume no responsibility for errors or
omissions nor for any damages resulting from the use of the information contained herein.

UK

Translation of original manual

BA SWmini4 002
ID-No.: H207909

rev. 0