SKP Gas Actuator 120V

SKP55 pressure regulating electro-hydraulic actuators combine with VG series gas valves to provide slow opening, fast closing safety shut-off and air/gas ratio control for industrial and commercial burner applications.

The SKP55 actuator controls the pressure difference across a restriction in the gas supply line as a function of the pressure difference across a restriction in the air supply duct so that the air to gas ratio remains constant irrespective of air volume changes.

There is no need for an upstream constant pressure regulator when using an SKP55 actuator within the applicable pressure range of the VG valve body. Since a single valve performs three functions: safety shut-off, constant pressure regulation, and air/gas ratio control, fewer components and fittings are required to assemble a gas train. This significantly reduces both the size and the weight of the gas train. 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 SKP55 actuator to be used in combination with all VG series gas valves from 1/2-inch to 6-inch in size. The actuator is easily mounted on the square flange of any VG valve with four bolts. No gaskets or seals are required when mounting the actuator. 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.

• UL listed, FM approved, CSA certified for USA and Canada, and 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.
• Simplifies commissioning and reduces start-up time for:
  • Recuperative burners with combustion air preheating.
  • Burners with continuously variable air or gas nozzle openings in the burner head.
  • Burners where either the air or gas pressure is not representative of the actual flow.
  • Burners with negative combustion air pressure levels.
• 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.
• Visual stroke position indicator.
• Light indicating "power on".
• Optional auxiliary switch available.
• Excellent tracking characteristic.
• Low, 13.5 VA power consumption