Local Auto-Manual Control

The Gevalco “Local Auto-Manual Control” module is based on proven, hi-pressure pilot-type “poppet” technology. Gevalco has utilized this technology for many years in its “Dual 3-way Poppet Control Valve” to provide the selective directional control of the power media for any Direct Gas, Gas-Over-Oil, or Hydraulic valve actuator. The local “Auto-Manual” function is integrated with the “poppet” valve assembly utilizing a commercially available 3-way SS ball valve with a SS lockable handle, eliminating large levers.

The “poppet valve” combines simplicity of design with corrosion-resistant materials and easily replaceable nylon poppets to provide reliable, durable operation. With working pressures up to 3000psig, the Gevalco “Dual 3-way Poppet Control Valve ” utilizes the direct pipeline pressure gas for both power gas and pilot media, thereby eliminating the need for any regulators or special low-pressure control supply systems. Eliminating this point of possible failure significantly increases the reliability of the entire system. The compact design has multiple inputs and outputs to provide a central point of all final actuator control actions.

The sure action control of the Gevalco “Poppet Valve” is achieved utilizing a pilot pressure on a piston to “pop” the nylon seals into the seat. This provides quick response and zero-leak control of the power gas directly to the actuator or to the hydraulic tanks. The poppet design allows for a full 3/8” flow port, providing high flow rates while handling contaminates.

The Gevalco Advantage

• Marine-grade, hard-anodized aluminum body with all stainless steel components.
• Standard piston provides 4:1 pressure ratio for pilot operation of other control components.
• Low-pressure pistons available for retrofit applications.
• Compact assembly (4”x4”x1 ½”) for direct valve mounting.
• Integrated in-line filter on power and pilot gas.
• Exhaust check valve to prevent atmospheric contaminates from entering the poppet valve.
• Suitable for both gas and hydraulic apllications

 

For more information on Gevalco Pipeline Automation Solutions – Contact Automation Technology Inc.