Pressure may be either 5000 PSI (5K) , 10000 PSI (10K), 15000 PSI (15K).
Steam Heat Exchangers are sometimes called line heaters in Oil Well Testing Industry , Steam Heat Exchanger is the process equipment need to prevent hydrates in Upstream Oil and Gas Industry where equipment is placed at the outlet of Choke Manifold , Where Hydrates are often formed during depressurization or sudden decrease in pressure. Hydrates are poison in continuous process plants which will block and damage pipeline and all downstream equipments , valves and instruments.
Some of standard Steam Heat Exchanger equipment used in well testing industry is.
2 MMBTU /HR Steam Heat Exchanger
4 MMBTU /HR Stem Heat Exchanger
5.5 MMBTU /HR Stem Heat Exchanger