With pressure ratings to 15,000 psi, Cameron H2 needle-and-seat chokes handle standard, erosive, and corrosive service.
Once the desired flow rate is reached, the choke can be operated as a positive choke. This reduces wear on the wing or master gate valves because they are not used to control flow. In every application, the H2 choke delivers long life and low maintenance.
|Nominal Size, in||Available Needle/Max. Orifice Size, in||Pressure Range, psi|
|API Material Class||Body||Bonnet||Choke Trim (Stem, Seat, and Bean)|
|AA and BB: General service||Alloy steel||Alloy steel||Stainless steel or stainless steel and tungsten carbide|
|CC: Nonsour, high CO2||Stainless steel||Stainless steel||Stainless steel or stainless steel and tungsten carbide
|DD and EE: 0.5 sour, low CO2†||Alloy steel||Alloy steel||Stainless steel and tungsten carbide
|FF: 0.5 sour, high CO2†||Stainless steel||Stainless steel||Stainless steel and tungsten carbide
|HH: High H2S, high CO2†||Corrosion-resistant alloy||Corrosion-resistant alloy
||Corrosion-resistant alloy and tungsten carbide
† In compliance with NACE Standard MR0175