Description

SIEMENS SKP25.411U1 110V gas valve actuator for boiler burner gas strain

Siemens SKP25… pressure regulation electro-hydraulic actuators are used in combination with VG… valves. The gas valve body is connected in series to provide safe shut-off and gas pressure regulation for industrial and commercial burners.

SIEMENS SKP25.411U1 110V gas train valve actuator for boiler burner

The SKP25… can also be applied as a 1:1 air/gas ratio regulator or zero governor. Since a single valve performs two or more functions, fewer gas train components and fittings are required. This significantly reduces both the size and weight of the gas train.In addition, smaller diameter gas valves can be used.

Compact SKP25… The actuator opens slowly and turns off as soon as the power is interrupted. The modular design allows the SKP25… to be matched with all VG… series gas bodies available in sizes ranging from 1/2″ to 6″.

Actuators are easy mounted on the square flange of any VG… valve with four pre-installed screws. A visible position indicator on the front of the actuator displays the entire stroke of the valve. The indicator light indicates when the actuator is energized.

Features

UL listed, FM approved, CSA certified for USA and Canada, and ISO 9001 certified. European, Australian and Japanese approved versions available.
Certified as a ventless pressure regulator.
Safety shut-off function and pressure regulating function in one compact unit.
Proof of Closure with Over Travel (POC) versions.
Optional NEMA 4 protection.
Visual position indication.
“Power on” indication light
Quick connect wiring terminals
Optional adjustable auxiliary switch available.
Applicable as 1:1 air/gas proportionator or zero governor.
Accurate pressure control characteristics, and zero offset (droop).
Modular design with 360o actuator rotation for easy field wiring and installation.
Low, 13.5 VA power consumption.
Integral regulation leak limiter

Application

SKP25… series actuators are combined with 1/2-inch to 6-inch VG…series gas valve bodies. VG…series gas valves must be ordered separately (See VGU…Technical Instructions).

Series types

SKP25.011U1 / SKP25.012U1 / SKP25.013U1 / SKP25.411U1 2
SKP25.611U1 / SKP25.012U2 / SKP25.013U2

Accessories

AGA22 Yellow setpoint spring for 6” to 48” WC (1.5 to 10 psi for SKP25.411U1)
AGA23 Red setpoint spring for 40” to 100” WC (8.5 to 20 psi for SKP25.411U1)
AGA25.2 Damping orifice for mounting into vent connection of SKP25.0…or SKP25.4…models
AGA28 Black bias spring to install if SKP25.0… is used as proportionator or zero governor
AGA29 Unpainted setpoint spring for 0” to 8.5” WC (included in SKP25.0…as standard)
AGA66 Sealing gasket to provide NEMA 3, 3R, and 4 protection (for VGG…/VGD…valves)

SIEMENS SKP25.411U1 110V gas train valve actuator for burner