Cross-Over Combinations for Safety Valves

Type SAVA2 COMBI and Type SAVA2 SOLO

  • Durable due to free of cavity design and protected sealing surfaces
  • Reliable during continuous operation and cross-over process
  • Flow-optimized with full cross section
AZ Armaturen Cross-Over Combinations for Safety Valves Type SAVA2 COMBI and Type SAVA2 SOLO

Cross-Over Combinations for Safety Valves

Type SAVA2 COMBI and Type SAVA2 SOLO

AZ Armaturen Cross-Over Combinations for Safety Valves Type SAVA2 COMBI and Type SAVA2 SOLO
  • Durable due to free of cavity design and protected sealing surfaces
  • Reliable during continuous operation and cross-over process
  • Flow-optimized with full cross section

Sealing Systems

➞ see sealing systems

Design characteristics

  • full-flow, round bore cross section max. 3 % Pressure loss – no Valve float
  • Valve sealing surfaces permanently protected from media
  • Error-proof operation
  • Same flow coefficient – regardless of the flow path

Options

  • Actuation: Lever or gearbox
  • Clearly visible position indicator
  • Coded shaft connection (incorrect assembly prevented)

Sealing Systems

➞ see sealing systems

Design characteristics

  • Full-flow, round bore cross section
  • Max. 3 % Pressure loss – No Safety valve float
  • Valve sealing surfaces permanently protected from media by PTFE-Sleeve
  • Error-proof operation
  • Same flow coefficient – regardless of the flow path

Options

  • Actuation: Lever or gearbox
  • Clearly visible position indicator
  • Coded shaft connection (incorrect assembly prevented)

Variants / Executions

Type SAVA2-SOLO

Cross-Over Valve for Safety Valves

  • Vent to atmosphere (without backflow of blow-off media capacity)
  • ζ = 0,45
  • manual pressure relief valve – optional with pressure gauge
Cross-over combinations for safety valves TYPE SAVA2-SOLO
  • Full-flow, round bore cross section
  • Max. 3 % Pressure loss – no Safety valve float
  • Valve sealing surfaces permanently protected from media by PTFE sleeve
  • Error-proof operation
  • Same flow coefficient – regardless of the flow path
  • free of cavities
  • PTFE sleeve

Actuation

  • Lever or gearbox
  • Clearly visible position indicator
  • Coded shaft connection (incorrect assembly prevented)

Cross-over action for 3-Way Plug Valve

Pos. 1

Safety valve 1

ζ = 0,45

Cross-over action

Amin guaranteed

  • Least cross section Amin during the cross-over phase (Amin × 2 = 0,65 × A)
  • full round bore
  • good drag coefficient ζ = 0,85

Pos. 2

Safety valve 2

ζ = 0,45

Type SAVA2-COMBI

Cross-Over Combination for Safety Valves and handling of toxic media

  • With backflow of toxic blow-off media
  • ζ = 0,45
  • manual pressure relief valve – optional with pressure gauge
  • Full-flow, round bore cross section
  • Max. 3 % Pressure loss – no Safety valve float
  • Valve sealing surfaces permanently protected from media by PTFE slevee
  • Free of cavities
  • Error-proof operation
  • Same flow coefficient – regardless of the flow path selected
Cross-over combinations for safety valves and handling of toxic media TYPE SAVA2-COMBI

Actuation

  • One gearbox – no complex linkage required
  • Safe Synchronized operation through a fixed shaft connection (no Chain!)
  • Clearly visible position indicator
  • Coded shaft connection (incorrect assembly prevented)
Cross-over combinations for safety valves and handling of toxic media TYPE SAVA2-COMBI

Cross-over action for 3-way and 4-way Plug Valve

Pos. 1

Safety valve 1

4-way Pluge Valve TOP

3-way Pluge Valve BOTTOM

ζ = 0,45

Cross-over action

Amin guaranteed

4-way Pluge Valve TOP

3-way Pluge Valve BOTTOM

  • Least cross section Amin during the cross-over phase (Amin × 2 = 0,65 × A)
  • full round bore
  • good drag coefficient ζ = 0,85

Pos. 2

Safety valve 2

4-way Pluge Valve TOP

3-way Pluge Valve BOTTOM

ζ = 0,45

AZ Valves Engineering