Pneumatic Wing and Master Valves and Hydraulic Operated Downhole valves Hydraulic Wing, Master and Downhole Valves with Pneumatic Controls Total Hydraulic Operation (High and Low Hydraulic Supply) for the WSV, MSV, & SCSSV Operation System Design includes:     Air or Natural Gas Supply – 100 to 200 PSIG     90 to 120 PSIG Hydraulic Control Pressure (Total Hydraulic     Design)     Standard or H2S-CO2 (NACE) Service     Hydraulic Outputs – 1,000 to 10,000 PSIG Subsurface     Safety Valves         2,000 to 5,000 PSIG Surface Safety Valves         90 to 120 PSIG Low Hydraulic Supply Control Pressure         High/Low Pilot supply – 50 PSIG     High and Low Accumulator Supply Pressure     NOTE: System Design will include Accumulation Calculation     based on Customer Requirements     Pneumatic Outputs     ESD Loop – 50 PSIG     Surface Safety Valves – 100 to 200 PSIG     High/Low Pilot Supply – 50 PSIG     Shutdown Outputs     Remote ESD or Local Shutdown     Fusible Plugs     High/Low Pilot Shutdown     Design includes Hydraulic Pump which can be operated     both Pneumatically or Manually     Total Hydraulic Designs (Class 1, Div. 1 and 2)     24 VDC Pump/Motor Assemblies     110 to 220 VAC Pump/Motor Assemblies     Atmospheric application – Desert or Marine     316 Stainless Steel Tubing and Fittings     Well Opening Sequence –         First – Subsurface Safety Valve         Second – Master Surface Safety Valve         Third – Wing Surface Safety Valve     Well Closing Sequence –         First – Wing Surface Safety Valve         Second – Master Surface Safety Valve         Third – Subsurface Safety Valve