All Siemens SKP15 Series Electro-hydraulic actuators can be used in combination with any VG Series gas valve. They provide safety shut‐off control for industrial and commercial burner applications.
Safety Shut-off function:
The Siemens SKP15 electro‐hydraulic actuator consists of a cylinder filled with oil. In addition, it also consists of a piston containing an electric oscillating pump and a relief system. When power is on with the actuator, the relief system closes. The pump then moves oil from the reservoir into the pressure chamber. Therefore this action causes the piston to move downward in the cylinder, opening the gas valve. When power to the actuator is interrupted, the relief system opens and the gas valve closes in less than 0.8 seconds.
A position indicator is visible through the transparent window of the terminal box cover. It shows the entire possible stroke range of the actuator. A light is visible through the lower left transparent window of the terminal box cover. It indicates when the actuator receives power. An optional, non‐ adjustable Single Pole, Double Throw (SPDT) proof of closure over travel switch signals the closed position after the gas valve has closed. An optional SPDT auxiliary switch is adjustable between 40% and 100% of the stroke. The adjustment screw and scale are located on the right side in the terminal box. In addition, they are visible through the transparent window of the terminal box cover.
Place the AGA66 sealing gasket between the actuator and the gas valve. In summary, this provides NEMA 3, 3R, and 4 protection rating for VGG10.xxxU / VGDxx.xxxU / VRD40.xxxU valves.
AGA63-MRHT – heating element for SKPx5, automatic thermostat
AGA64 – connector valve actuator plug, use for SKPx5…E. versions
AGA65 – connector end switch plug, use for SKPx5…E. versions
AGA66 – sealing gasket
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SIEMENS SKP15 SERIES:
US/Canada (UL Listed, FM Approved and CSA Certified only when assembled to series VG valves.)
SKP15.011U1 – 110 Vac, Safety Shut-off Actuator, Proof of Closure (POF) Switch
SKP15.012U1 – 110 Vac, Safety Shut-off Actuator, POF and Auxilliary Switches
SKP15.013U1 – 110 Vac, Safety Shut-off Actuator, no Switches
SKP15.012U2 – 220 Vac, Safety Shut-off Actuator, POF and Auxilliary Switches
SKP15.013U2 – 220 Vac, Safety Shut-off Actuator, no Switches
Metric (CE, EAC, RoHS Approval only when assembled to series VG valves.)
SKP15.000E1 – 110 Vac, Safety Shut-off Actuator, no Switches
SKP15.000E2 – 220 Vac, Safety Shut-off Actuator, no Switches
The SKP10 has been replaced by SKP15 above.