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Siemens SKP*5 series, Руководство по эксплуатации и инструкции по монтажу, Страница: 6 / 17

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Building Technologies

Operation Manual and Mounting Instructions VGD4 / VRD4 / SKPx5

CC1U7643en

14.03.2018

2.2  SKP15 actuator

7643z73/0817

1

2

3

4

•

Valve stroke display

‚

Indication of operating state (LED)

ƒ

Power supply

„

End switch (valve CLOSED)

Β

Service note!

No spare parts are available for the SKP15 actuator (security regulating unit).
The entire actuator can only be replaced by contacting the burner manufacturer.

Содержание SKP*5 series

Страница 1: ...e gas valve with a QPLx5 pressure switch and SKPx5 actuator does not require any maintenance Caution This document is intended for end users All legal safety warning and technical notes contained in the data sheets for the SKPx5 actuator N7643 VGD4 double gas valve N7631 VRD4 double gas valve for biogases and recycling gases N7649 and the QPLx5 pressure switch N7221 are also applicable ...

Страница 2: ...ED and are used primarily on gas fired combustion plant They open slowly and close rapidly The SKP15 actuator can be supplied with end switches including a valve stroke display or without an end switch or valve stroke display 1 2 SKP25 actuator The electrohydraulically operated SKP25 gas fittings together with VGD4 VRD4 work as a safety shutoff valve OPEN CLOSED and are also used as a gas pressure...

Страница 3: ...With valve stroke display With end switch SKP15 001 OPEN CLOSED SKP15 000 Without valve stroke display Without end switch SKP15 001 SKP25 003 OPEN CLOSED With valve stroke display With end switch OPEN CLOSED With valve stroke display Without end switch With constant pressure governor AIR The SKP15 SKP25 actuators can be combined at will with the VGD4 VRD4 double gas valves 1 x VGD40 VRD40 2 x SKP1...

Страница 4: ...valve stroke Depending on the tolerance limits the fully closed position of the valve may vary The maximum achievable valve stroke with a fully open valve seat varies according to the type and size of the valve From 12 mm to 25 mm During normal operation of an SKP25 actuator it is also possible to observe the stability and oscillation tendency in addition to the opening of the valve seat Β Note SK...

Страница 5: ...1U7643en 14 03 2018 2 1 Electrical connection 120 V 230 V activation of the SKPx5 actuator 7643z43 0706 N L 1 2 3 1 2 3 Potential free end switch indicating the fully closed position only with the SKPx5 xx1xx actuator 1 2 3 1 2 3 N L Closed valve 7643z76en 1017 7643z77en 1017 For all types ...

Страница 6: ...18 2 2 SKP15 actuator 7643z73 0817 1 2 3 4 Valve stroke display Indication of operating state LED ƒ Power supply End switch valve CLOSED Β Service note No spare parts are available for the SKP15 actuator security regulating unit The entire actuator can only be replaced by contacting the burner manufacturer ...

Страница 7: ... LED ƒ Power supply End switch valve CLOSED Setpoint spring setting Vent opening Assembly of the AGA25 2 damping throttle Gas connection Key po Control pressure Β Service note No spare parts are available for the SKP25 actuator security regulating unit The entire actuator can only be replaced by contacting the burner manufacturer Β Note The vent opening must not be closed or clogged as a result of...

Страница 8: ...2 according to EN 161 Gas Gaz 60 C air Family 1 2 3 7643z83 0817 Built in filter mesh size 0 9 mm 2 5 Mounting position 7643z84 0318 AGA66 Β Note The AGA66 gasket set increases the degree of protection for the valve combination from IP54 to IP65 2 6 Torques Max torques flange connection and stud screws according to DIN 939 Tighten locking and connecting screws in the appropriate manner Note the ma...

Страница 9: ...313 VGD40 100 L VRD40 100 100 350 259 228 145 43 131 180 255 443 298 476 331 VGD40 125 L VRD40 125 125 400 305 256 175 31 150 210 303 491 316 524 349 VGD40 150 L VRD40 150 150 480 335 294 188 20 168 240 333 521 333 554 366 VGD41 040 40 240 195 149 115 58 88 110 194 382 267 415 300 VGD41 050 50 240 202 160 115 58 88 125 194 382 267 415 300 VGD41 065 65 290 214 178 118 60 102 145 200 388 270 421 303...

Страница 10: ...lot gas connecting plate AGA40 41 Pressure switch connecting plate mounted on both sides 7643z71 0418 VGD41 VGD41 Key Mounting surface of the QPLx5 pressure switch Pressure connection for the QPLx5 pressure switch ΒNote Remove M4 locking screws as required G 1 4 G 1 8 G 1 4 G 3 4 G 1 8 G 1 4 Strainer 1 9 3 4 5 2 7 6 8 V1 V2 7643z72en 0718 10 Key pi Inlet pressure pm Pressure between valve V1 V2 po...

Страница 11: ...point the respective electrical circuit will be opened or changes over Caution Service note The QPLx5 also has to be replaced when replacing a valve It is recommended to replace the QPLx5 after over 50 000 cycles or a service life of 10 years due to the designed lifetime for gas pressure switches according to AFECOR It is not recommended to reinstall these even if the seals on the valve have been ...

Страница 12: ...t options 7643z85 0318 QPL15 pm QPL15 pm QPL15 pi 7643z86 0318 7643z87 0318 3x pressure switches 2x pm pi Example not binding Valve proving control A Example not binding Valve proving control B and pressure switch QPL15 pi below Key pi Inlet pressure pm pvps Pressure between valve V1 V2 po Outlet pressure for valve V2 ...

Страница 13: ...8 4 Connection diagram 4 1 Function as a minimum maximum pressure switch Minimum pressure switch When the pressure falls below the set value NO opens and NC closes Maximum pressure switch When the pressure exceeds the set value NC opens and NO closes 4 2 Connection via connector AGA65 according to DIN 43650 ...

Страница 14: ...e sea level 5 2 VGD4 VRD4 double gas valve Operation DIN EN 60721 3 3 Climatic conditions Class 3K5 Mechanical conditions Class 3M2 Temperature range 10 60 C Humidity 95 r h Installation altitude Max 2 000 m above sea level Β Note For the model number of the VGD4 VRD4 double gas valve see the nameplate on the SKPx5 actuator 5 3 QPLx5 pressure switch Operation DIN EN 60721 3 3 Climatic conditions C...

Страница 15: ...conforming to DIN EN 175301 803 A 3 pole protective ground Ø 6 9 mm max 1 5 mm BPZ AGA64 AGA64 Contact box for end switch Plug in connector conforming to DIN EN 175301 803 A 3 pole protective ground Ø 4 5 11 mm max 1 5 mm BPZ AGA65 AGA65 Heating element For use at low ambient temperatures 10 20 C Refer to data sheet N7923 BPZ AGA63 5A27 AGA63 5A27 Gasket set For mounting between SKPx5 actuator and...

Страница 16: ... built in standard spring AGA29 10 25 kPa for SKP25 0 actuator 15 150 kPa as a standard spring for SKP25 4 actuator Ø 1 8 mm BPZ AGA23 AGA23 Setpoint spring unpainted for SKP25 0 actuator Equivalent built in standard spring 0 05 2 2 kPa Ø 1 mm BPZ AGA29 AGA29 AGA30 x setpoint fine adjustment for SKP25 actuator Packaging version with one setpoint spring each Refer to Mounting Instruction M7643 74 3...

Страница 17: ...ng the designed lifetime in terms of the number of burner startup cycles or after the corresponding usage time the VGD4 VRD4 double gas valve and SKPx5 actuator must be checked and or replaced by authorized personnel The criteria set out in EN 161 EN 13611 are applicable when testing the tightness This test can be omitted if a valve proving system is in place The designed lifetime is not the warra...

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