M AIN OFFICES 13 111 Northwes t Fr eeway Suite 200 Houston,Texas 7704 0 Ph 713 510 2200 Fx 713 6 88 9166 email [email protected] SALES OFFICE Blackness Road Altens Industrial Estate Aberdeen AB12 3LH Scotland Ph (44) 1224 896190 Fx (44) 1224 896199 SALES OFFICE No. 9 Pandan Cres cent Sing apore 1284 65 Ph (65) 6773 7555 Fx (65) 6773 7667 SALES OFFICE 36, Bd des Oceans 132 75 Marseil le Cedex 9 France Ph (33) 491 29 18 33 Fx (33 ) 491 29 18 43 www.oilstateshydrotech.com ©2002 Oil States Industries Incorporated API 6H-00 01 Oil States HydroTech since 1966 S ub s ea Pipe l ine T e c hno l o g y HydroTech Pipeline End Connectors (PECs) are installed over the e nd of ba re pipe to provi de a s tr uctur a l co nne ction point . The connectors can be installed on a cut pipe end that has had conc rete we i ght coa ti ng and any other coa ti ng, s uch as somasti c a nd c oal t a r e name l, remove d. Whe n a ctuated, PE Cs s t ructur a l - l y a ttac h to and s e al ag ainst t he pipe. PECs are use d to perma- nentl y c onnec t hi gh-pr e s s ur e pi pe l i nes , flowli nes , a nd ri s e rs for both underwater repair and new construction projects. Diver-Installed and Diverless Versions Hydr oT ech Pipeli ne E nd Conne ctor s are a va i l a ble i n t wo ve r- si ons : the dive r- ins tall e d Ma rk V HydroCouple a nd t he R OV- ins tall e d Gri p & S ea l Hydrauli c Co upli ng (GS HC) . Bo th ve rsions a tt a ch to the pipeli ne, flowl i ne , or r ise r using we dge -shaped sl i p s e gme nt s, or coll e t gr ips, pos i ti oned r adiall y i nside t he body. The c oll e t gr i ps a re c ont a i ned be t we e n t he pi pe OD and an out e r wedge -s hape d bowl , ca using them to be s elf- e nergizing; the hi ghe r the tens ion or compression for ce, the ti ghte r t he y g ri p the pipeli ne . F or mos t applica ti ons, P E Cs uti - li ze dua l- a cti ng c oll et gri ps to support both t e ns ion loads (t hrust effec ts of i nternal pr e s sure a nd exte rna ll y app li e d t e n- sion loads) and compression loads resulting from pipeline ther- mal expansion or other causes. After a Mark V HydroCouple has been stabbed onto the pi pe li ne e nd, the di ve r actuate s both t he coll e t gr ips and the elastomer packer seals by tightening the packing fl ange and then tes t s the s e al. Wi th a GS HC, a n ROV a ctuates the coll e t gr i ps and seals and tests the seal via an ROV panel. Both ve r s i ons us e a se ali ng s ys te m consisti ng of two s t ac ks of e las tome r pac ke rs. Whe n axia ll y compr e s s e d, the e las tome r packers flow radially inward against the pipe OD and outwardly ag ainst t he c onne ctor body. The e l as tomer se als a re bac ked up by me t a l gua rd r i ngs tha t preve nt sea l e xt r us i on. A pr e s sure-t e s t feature is provided for verifying the seal after setting and instal- lati on. Thi s i s acc ompl is he d by pres s ur i ng the a nnul us s pac e between the two packing stacks. When pipeline operating temperature is unusually high com- pa red to t he wa ter t e mperatur e , i t may be nec es s ary t o pr ovi de the PEC with our temperature-compensated sealing system. This patented mechanism regulates the pressure fl uctuations in the packers to a range that will neither damage the pipe due to End Connectors for Repair, Construction Add a connection to bare pipe, without wel ding Diver-installed Mark V HydroCouple Diverless Grip & Seal Hydraulic Coupling