Temperature Rating

Refer to the guidelines below for the recommended operating temperatures of ram BOPs, spherical BOPs and valves:

Click here to download the elastomer operation temperature limits chart.

Ram BOPs  
Standard Ram Rubber Packer
(pipe and shear)
(-10°F) to 200°F(-23°C to 93°C)
T-SL (T70 or T75) Ram Rubber
Packers Drill Stem Testing (pipe)
(-10°F to 250°F(-23°C to 121°C)
CS Critical Service Ram Rubber
Packers Drill Stem Testing (pipe)
(-10°F) to 350°F(-23°C to 177°C)
Ultratemp Ram Rubber Packers
(pipe and shear)
20°F to 350°F(-7°C to 177°C)
Multi-Ram Rubbers30°F to 180°F(-1°C to 82°C)
Ram Door Seals(-10°F) to 350°F(-23°C to 177°C)
Operator Hydraulic Seals(-10°F) to 225°F(-23°C to 107°C)
Ram Shaft Seal Assemblies
(11, 5,000 psi & larger)
(-10°F) to 350°F(-23° to 177C)
Spherical BOPs  
Nitrile Packing Element40°F to 170°F(4°C to 77°C)
Natural Rubber Packing Element(-20°F) to 170°F(-29° to 77°C)
SBOP Hydraulic Seals(-10°F) to 225°F(-23°C to 107°C)
Valves  
Stem Packing(-10°F) to 350°F(-23°C to 177°C)
Seat Seals(-10°F) to 350°F(-23°C to 177°C)