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Siemens SKP Series Technical Instructions

Air/gas ratio controlling actuators with safety shutoff function - for use with gas valves
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SKP Series
SKP70...U.. Air/Gas Ratio Controlling Actuators
With Safety Shutoff Function—
For Use With Gas Valves VG...
D D D D es
esc c c c r r r r i i i i p p p p t t t t i i i i o o o o n n n n
es
es
SKP70... pressure regulating electro-hydraulic actuators are used in combination with
VG... series gas valves to provide slow opening fast closing shutoff and air/gas ratio
control for industrial and commercial burner applications.
The SKP70... controls the burner manifold gas pressure as a function of the
combustion air pressure without the need for an additional constant gas pressure
regulator.
Since three functions, safety shutoff, constant pressure regulation and air/gas ratio
control can be performed by a single valve, fewer components and fittings are required
to assemble a gas train reducing both the size and the weight of the gas train
significantly. The total pressure drop across the gas train arrangement is reduced,
allowing for the use of smaller diameter gas trains in most applications.
The modular design allows the SKP70... to be used in combination with all VG... series
gas valves from ½-inch to 5-inch in size. The actuator is easily mounted on the square
flange of any VG... valve by means of four bolts contained in the terminal box of the
actuator. No gaskets or seals are required when mounting the actuator. The valve
position is shown by a visible position indicator displaying the entire stroke range of the
actuator.
Te Te Te Tec c c c h h h h n n n n i i i i c c c c a a a a l I l I l I l In n n n s s s s t t t t r r r r u u u u c c c c t t t t i i i i on on on ons s s s
Document No. 155-516P25
SKP70...U..
Rev. 2, December, 1998
Siemens Building Technologies, Inc.
Landis Division

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Summary of Contents for Siemens SKP Series

  • Page 1 VG… valve by means of four bolts contained in the terminal box of the actuator. No gaskets or seals are required when mounting the actuator. The valve position is shown by a visible position indicator displaying the entire stroke range of the actuator. Siemens Building Technologies, Inc. Landis Division...
  • Page 2 Personal injury/loss of life may occur if a procedure is not performed as specified. P P P P a a a a ge ge 2 2 2 2 o o o o f f f f 9 9 9 9 Siemens Building Technologies, Inc. Landis Division...
  • Page 3 Auxiliary features Setting range of auxiliary switch Full stroke Siemens Building Technologies, Inc P P P P a a a a ge ge 3 3 3 3 o o o o f f f f 9 9 9 9 Landis Division...
  • Page 4 P P P P a a a a ge ge 4 4 4 4 o o o o f f f f 9 9 9 9 Siemens Building Technologies, Inc. Landis Division...
  • Page 5 N N N N o o o o t t t t e e e e : : : : Wiring must conform with local electrical codes. Siemens Building Technologies, Inc P P P P a a a a ge...
  • Page 6 A A A A d d d d j j j j u u u u s s s s t t t t m m m m e e e e n n n n t t t t s s s s ..P P P P a a a a ge ge 6 6 6 6 o o o o f f f f 9 9 9 9 Siemens Building Technologies, Inc. Landis Division...
  • Page 7 F F F F i i i i g g g g u u u u r r r r e e e e 3 3 3 3 ..A A A A d d d d j j j j u u u u s s s s t t t t m m m m e e e e n n n n t t t t s s s s ..Siemens Building Technologies, Inc...
  • Page 8 92U U U U ..P P P P a a a a ge ge 8 8 8 8 o o o o f f f f 9 9 9 9 Siemens Building Technologies, Inc. Landis Division...
  • Page 9 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. © 1998 Siemens Building Technologies. S S S S i i i i e e e e m m m m en...