Operating Instructions for Shut-off Dampers DN 700 - DN 1200 (PN 10/16/25)
Wild Armaturen AG
Jona
Key information
- Publication date:30 October 2025
- Contract type:Permanent position
- Place of work:Jona
Job summary
The manual for shut-off valves DN 700 - DN 1200 (PN 10/16/25) provides essential information.
Tasks
- Outlines usage for various media including drinking water and air.
- Details maintenance and operation guidelines for users.
- Covers installation and parts information for easy reference.
Skills
- Requires understanding of valve specifications and maintenance.
- Knowledge of various media compatibility and pressure ratings.
- Ability to follow installation and maintenance procedures.
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DN 700 - DN 1200 (PN 10/16/25)
1. Scope of application
The shut-off damper can be used for drinking and raw water, compressed air and all types of gases according to DVGW worksheet G 260/1. Other media on request. Pressure rating PN 10, PN
16, PN 25, the max. operating and differential pressure corresponds to the nominal pressure. Flange according to
DIN 28604, 28605, 28606. Flange according to ASA and BSI on request. Temperature range for the above-mentioned media +70°C.
2. Design
Shut-off damper with flow-optimized, double eccentric mounted disc.
Easily replaceable disc seal. Shaft bearings running in maintenance-free plain bearings. Shaft sealing by internal and external O-rings. Indicator device on the gearbox housing cover (OPEN-CLOSE). Crank gear with adjustable stop for the end position CLOSE. Operation via ball handle.
Assignment of gearboxes to the individual shut-off dampers, Table 1:
DN
700
800
900
1000
1200
PN 10
SK IV
SK IV with intermediate gear
GS 250
PN 16
SK IV with intermediate gear
GS 200
GS 250
PN 25 SK IV with intermediate gear
GS 200
GS 250
Number of turns
Permissible input torques of the gearboxes, Table 2: per stroke, Table 3:
Gearbox
Max. permissible input torque Max. permissible input torque
Gearbox
Turns in Nm at stop "OPEN" in Nm at stop "CLOSE" per stroke
SK I
30
250
SK I
21
SK I A
40
250
SK I A
21
SK II A
90
250
SK II A
24
SK III
150
250
SK III
30
SK IV
300
400
SK IV
43
SK IV with I.
120
120
SK IV with I.
172
GS 200
70
70
GS 200
212
GS 250
140
140
GS 250
208
3. Storage instructions
The shut-off damper must be stored in such a way that it is protected against contamination and damage. The profile seal must not be exposed to direct sunlight.
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4. Installation instructions n Clean disc, damper housing and profile seal. n Check shut-off damper for possible damage due to storage or transport. n Perform functional check. The operating torque must not exceed the values specified in Table 2. In case of doubt, measure with a torque wrench.
5. Maintenance instructions n Shut-off dampers are maintenance-free. n Drive and bearing parts have good emergency running properties. n We recommend operating the shut-off damper once or twice a year.
6. Replacing the profile seal (Chapter 8; spare parts list shut-off damper) n Move disc (Pos. 3) to open position. n Loosen hexagon screws (Pos. 15) of the gearbox and pull the gearbox at least
10 mm off. n Turn gearbox 90° counterclockwise. n Remove clamping ring (Pos. 4) after removing the cylinder screws (Pos. 30). n Replace profile seal (Pos. 9), remove contamination in the seal area. n Ensure exact fit of the profile seal in the retaining groove. n Screw on clamping ring (Pos. 4), initially slightly pre-tension the profile seal. n Turn gearbox (2) back to starting position and secure, insert cylinder roll pin (Pos. 17). n Move disc to "CLOSE" position. n Perform pressure test, depending on pressure rating: see DIN 3230, Part 3 n If leakage occurs, tighten countersunk screws (Pos. 28) in sections. n Tighten set screws (Pos. 26) before completing the pressure test.
7. Adjusting the gearbox end stop "CLOSE" (Chapter 9; crank gear) n Loosen closure screw (Pos. 15). n Loosen spindle nut (Pos. 6) by turning the handwheel towards "OPEN" from the
threaded bushing (Pos. 13). n Loosen set screw (Pos. 36). n By turning the threaded bushing (Pos. 13) clockwise, the mechanical
end stop "CLOSE" is adjusted so that by turning the handwheel clockwise the disc moves deeper into the sealing seat. n Turning counterclockwise produces the opposite effect.
The distance "X" specified in the table must not be exceeded.
After adjusting the threaded bushing (Pos.13) tighten set screw (Pos. 36). n Screw in closure screw (Pos. 15).
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8. Spare parts shut-off damper
Position
Name
Material
W-No.
1
Housing AK
EN-GJS-400-15
ENJS1030
2
Gearbox SK
3
Disc
EN-GJS-400-15
ENJS1030
4
Clamping ring
EN-GJS-400-15 // X6CrNiMoTi17-12-2
ENJS1030 // 1.4571
5
Drive shaft for SK
X20Cr13 // X6CrNiMoTi17-12-2
1.4021 // 1.4571
6
Bearing pin
X20Cr13 // X6CrNiMoTi17-12-2
1.4021 //1.4571
7
Bearing bush A
GZ-CuSn7ZnPb
2.1090.03
8
Bearing bush B
GZ-CuSn7ZnPb
2.1090.03
9
Profile seal
EPDM 356/03 // NBR SL 77/89 E1
10
Blind cover AK
S235JRG2
1.0038
11
Nameplate AK
CuZn35Ni3Mn2AlPb
CW710R
12
Connection ring AK
S235JRG2
1.0038
13 and 14
O-ring
NBR
15
Hexagon screw ISO 4017
A2/A4 - 70
16
Spring washer DIN 127
X5CrNi18-10
1.4301
17
Cylinder roll pin DIN EN ISO 8740
6.8
18
Hexagon screw ISO 4017
X5CrNi18-10
1.4301
19
Half-round key ISO 8746
4.6 nickel-plated
20
Set screw DIN 914
X5CrNi18-10
1.4301
21
Taper pin DIN EN 22339
X14CrMoS17
1.4104
22
Woodruff key DIN 6885
C32D
23
O-ring
NBR
24
Pointer
Al
25
Handwheel DIN 950
Al
26
Set screw DIN 913
A2
27
O-ring
EPDM
28
Countersunk screw ISO 10642
8.8
29
Spring washer
X5CrNi18-10
1.4301
30
Cylinder screw ISO 4762
A2
31
Intermediate gear
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PIPE + FITTINGS
Gearbox
X max. in mm
SK III
22
SK IV with I.
40
9. Spare parts crank gear
Position
Name
Material
W-No.
1
Housing SK
EN-GJS-500-7
ENJS1050
2
Cover SK
EN-GJS-500-7
ENJS1050
3
Fork SK
EN-GJS-500-7
ENJS1050
4
Head piece
EN-GJS-500-7
ENJS1050
5
Tab SK
S235JRG2
1.0038
6
Spindle nut SK
CuZn35Ni3Mn2AlPb
CW710R
7
Spindle SK
X20Cr13
1.4021
8
Collar pin SK
X20Cr13
1.4021
9
Bearing bush G SK
Polyamide
10
Bearing bush D SK
Polyamide
1.0038
Shut-off dampers
11
Sliding stone SK
CuZn35Ni3Mn2AlPb
CW710R by Wild are
12
Bushing
GZ-CuSn7ZnPb
2.1090.03 open for any
13
Threaded bushing SK
C45
System and a
15
Closure screw DIN 7604
5.8 safe investment
19
Axial cylindrical roller bearing into the future
20
Hexagon screw
A2
21
Hexagon screw ISO 4017
A2
1.4301
22
Washer ISO 7090
X14CrMoS17/X5CrNi18-10
1.4104
23
Set screw DIN 914
5.8
24 Cylinder roll pin DIN EN ISO 8740
6.8
25
Woodruff key DIN 6885
C32D
26-29
O-ring
NBR
31
Shielding ring
Neoprene
36
Set screw DIN 913
5.8
37
Spacer bushing IV
POM
38
Sealing compound
Wild Armaturen AG - Industrie Buech 31 - 8645 Jona-Rapperswil - Tel: 055 224 04 04 - Fax: 055 224 04 44 - www.wildarmaturen.ch
