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Product Overview: Engineered for reliable fail-closed protection, our Pneumatic Actuator for Surface Safety Valves (SSVs) is designed specifically for reverse gate valves used in wellhead emergency shutdown (ESD) systems. Operated via compressed air or gas at low driving pressures (100–120 PSI), this surface safety valve actuator provides immediate, automatic valve closure to protect wellhead infrastructure, control lines, and field personnel.
Key Features & Advantages:
Fail-Closed Emergency Protection: Rapidly and automatically closes the reverse gate valve upon loss of pneumatic supply or control signal failure.
Low Driving Pressure: Operates efficiently at a standard driving pressure of 100 PSI with a maximum operating limit of 120 PSI.
Thermal Lock & Fusible Devices: Optional thermal lock devices activate automatic closure when exposed to high heat or fire conditions.
Visual Position Indicator: Integrated external indicator allows operators to visually verify stem and valve open/closed positions on site.
Severe Temperature Performance: Performs reliably across broad operational temperature ranges from -29°C to +121°C (-20°F to +250°F).
Technical Specifications:
Applicable Valve Sizes: 1-13/16" to 7-1/16"
Normal Driving Pressure: 100 PSI
Maximum Working Pressure: 120 PSI
Operating Temperature Range: -20°F to +250°F (-29°C to +121°C)
Product Specification Levels (PSL): PSL1 – PSL3
Performance Requirement Levels: PR1 – PR2
Actuation Mechanism: Pneumatic (Fail-Closed)
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