When the wellhead is fully sealed with a fully enclosed gate plate, heavy mud is forcibly pumped into the wellbore through the well-closing pipe to carry out the well-closing operation.

When a blowout occurs, clear water is strongly injected into the wellhead through the wellhead pressure pipe to prevent combustion and fire.

When a blowout catches fire, the fire extinguishing agent is forcefully injected into the wellbore through the mandrel pipe to assist in extinguishing the fire.

Working pressure: 2000PSI to 20,000 psi

Nominal diameter: 2.1/16" to 4.1/16" (46mm to 103mm)

Working medium: Petroleum, natural gas, slurry

Operating temperature: -46℃ to 121℃(LU)