F4S-12 and F4S-25 robust weld pad vessels are used as the core of a modular pressure system. This range starts with the FB, which is a non-pressurised API Plan 52 Buffer System, used to provide cooling to mechanical seal faces. The FP and FPH Systems are piped as API Plan 53A configuration. The FPH has the addition of finned tubing to enhance surface area so it can operate on high heat applications.
