Bolted Bonnet Subsea Choke Valves

Master-Flo bolted bonnet subsea choke valves do not require maintenance, making them ideal for modular-retrieval systems. Right-angle, inline, or custom piping configurations are available to meet your specifications. Sizes are available for end connections up to 11-inches, 1,000 Cv and pressures of 15,000 psig (103,000 kPa).

Valve Type

Right angle, inline and custom configurations available

Max. Pressures

Depth: 11,000 feet / 3300 m

6,650 psig / 46,000 kPa to 15,000 psig / 103,000 kPa

Standard Connections

2" to 11'

Standard Trim

Ported cage with external sleeve.

Bolted Bonnet Subsea Choke Valves

Bolted Bonnet Subsea Choke Valves Variations

  • P2E

    End connections: 2" and 3"

    Maximum Pressure: 6,650 psig / 46,000 kPa

    Nominal Capacity (Cv): 21

    Nominal Steps (full close to full open): 110

  • P25E

    End connections: 2", 3" and 4"

    Maximum Pressure: 6,650 psig / 46,000 kPa and 15,000 psig / 103,000 kPa

    Nominal Capacity (Cv): 36

    Nominal Steps (full close to full open): 120 (113 for high pressure model)

  • P3E

    End connections: 3" and 4"

    Maximum Pressure: 6,650 psig / 46,000 kPa

    Nominal Capacity (Cv): 61

    Nominal Steps (full close to full open): 170

  • P35E

    End connections: 4" and 5"

    Maximum Pressure: 15,000 psig / 103,000 kPa

    Nominal Capacity (Cv): 92

    Nominal Steps (full close to full open): 160

  • P4E

    End connections: 4", 5" and 7"

    Maximum Pressure: 10,000 psig / 69,000 kPa

    Nominal Capacity (Cv): 162

    Nominal Steps (full close to full open): 200

  • P5E

    End connections: 5" and 7"

    Maximum Pressure: 10,000 psig / 69,000 kPa

    Nominal Capacity (Cv): 250

    Nominal Steps (full close to full open): 225

  • P6E

    End connections: 7" and 9"

    Maximum Pressure: 6,650 psig / 46,000 kPa

    Nominal Capacity (Cv): 335

    Nominal Steps (full close to full open): 270

  • P8

    End connections: 9" and 11"

    Maximum Pressure: 10,000 psig / 69,000 kPa

    Nominal Capacity (Cv): 700

    Nominal Steps (full close to full open): 440

  • P10

    End connections: 9" and 11"

    Maximum Pressure: 7,500 psig / 52,000 kPa

    Nominal Capacity (Cv): 1,000

    Nominal Steps (full close to full open): 347, 440

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