TWS Internak floating roof design and quality can satisfy every kind of the customer’ needs both for new tanks and the existing ones.

TWS high quality manufacturing ensures vapor loss prevention and excellent functionality of the peripheral rim seal. its material is selected to meet the service product and 100% aromatics prevention is also achieved. TWS basic degign for IFR meets API650 annex H and TWS tank experience helps TWS IFR to expand its function beyond the unexpected challenges that tank might reveal. Irregular tank shell and abnormal (narrow or wide) rim space are analyzed and calculated to have desired vapor loss reduction. Abundant field experience has transcended TWS IFR design and technologies.

All components are designed to pass though existing tank manways and IFR penetrations such as columns and poles are provided with a well box and its own seal to accommodate IFR to freely travel inside the tank.

TWS-S SINGLE WIPER SEAL

TWS-D DOUBLE WIPER SEAL

TWS-F FOAM AND WIPER SEAL

TWS-M MECHANICAL SEAL