Pantani Divisione Tubi core business is U bend tubes for heat exchangers applied mostly in Oil & Gas plants, Chemical & Petrochemical plants, Refineries, Power plants, Renewable energy plants.
Tube OD | Tube thickness | Bending Radius | U tube straight “leg” length | Straight tube before U bending |
Min. 12,7mm / Max. 31,75mm | Min. 0,70mm / Max. 4,19mm | Min. 1,5 x OD / Max. 1250mm | Max. 12500mm | Max. 27000mm |
– Ovalization of straight and bending portion (A-B-C-D-E-F-G)
– Thinning of straight and bending portion (A-B-C-D-E-F-G)
– Leg spacing length (I.A.1 + I.A.2)
– U bend tube length (leg + radius + (0,5 x OD))
– Difference between legs length
– Straightness of legs
– Deviation from bend plane
– Twist of bending portion
– Squareness and cleanliness of tube ends
– Complete visual check
Standards usually required to establish U bend tube tolerances:
– ASTM A556/556M
– ASTM B395 / B395M
– ASTM A688/688M
– ASTM A803/803M
– TEMA Section 5 § RCB 2.31
– DIN 28179
After U bend (cold forming), heat treatment of bending portion may be required. Pantani Divisione Tubi is equipped with 2 heat treatment machines and 1 nitrogen generating machine (to protect stainless steel tube surface during annealing). Temperature is controlled through the entire heat treated area by fixed and portable infrared pyrometers.
– Hydrostatic Test
– Air Underwater Test
– Pulsating Test
– Dye Penetrant Test
– Magnetoscopic test
Any type of packing is available according to customer need to worldwide destinations.
“ Obblighi informativi per le erogazioni pubbliche: gli aiuti di stato e gli aiuti de minimis ricevuti dalla nostra impresa sono contenuti nel Registro nazionale degli aiuti di Stato di cui all’art.52 della L.234/2012 a cui si rinvia e consultabili al seguente link: https://www.rna.gov.it/RegistroNazionaleTrasparenza/faces/pages/TrasparenzaAiuto.jspx “
Copyright 2013 - Pantani Divisione Tubi S.R.L. | Iscr. Reg. Imp. Forlì-Cesena/ P.Iva 03392810408 - Cap. Soc. € 44.000,00 i.v. - R.E.A. 298852 | Privacy Policy Cookie Policy