点击图片查看原图SKP75… pressure regulating electro-hydraulic actuators are used in combination with
VG… series gas valve bodies to provide shut-off and air/gas ratio control for industrial
and commercial burner applications.
The SKP75… 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 shut-off, constant pressure regulation, and air/gas ratio
control can be performed by a single valve, 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.
The compact SKP75… actuator opens slowly and closes immediately when power is
interrupted. The modular design allows the SKP75… to be used in combination with all
VG… series gas valves bodies from 1/2-inch to 6-inch in size. The actuator is easily
mounted on the square flange of any VG… valve with four pre-mounted screws. A
visible position indicator on the front of the actuator displays the entire stroke of the
valve. A light indicates when the actuator is powered.
Features
• UL listed, FM approved, CGA and AGA certified, IRI approvable, ISO 9001
certified; European, Australian and Japanese approved versions available.
• Safety shut-off function, pressure regulating function and air/gas ratio control in one
compact unit.
• Proof of Closure with Over Travel (POC) versions are available.
• Optional NEMA 4 protection.
• Simplifies commissioning and reduces start-up time.
• Maintains air/gas ratio when the airflow is disrupted.
• Automatic compensation for combustion chamber back pressure fluctuations.
• No mechanical wear or play that causes drifting.