CLAMP CONNECTORS - Galperti

1 CLAMP CONNECTORS1 Galperti ENGINEERING is an International Companywhose business is the design, manufacture and supply ofhigh integrity CONNECTORS , forged fittings and flowcontrol , Gas, Power and Petrochemical Companies utilize ourproducts in a variety of applications, where oftencomplex technical problems can now be solved order to focus our effort upon our Customerrequirements, Galperti ENGINEERING offer a totaldesign and manufacturing capability, from ourdedicated in-house forge through to finished product, aunique feature in today s ever demanding G-LOK Connector has an established recordthroughout the world, meeting or exceeding all currentindustry codes and facility is accredited with ISO 9001 and our productsmeet all current industry G-LOK CLAMP Connector is a fully provenalternative to the conventional flanged connection usedthroughout the oil, gas, petrochemical and powergeneration industries.

2 Produced in a comprehensiverange of sizes and materials they offer versatility,compactness, weight and cost effectiveness inconnecting piping Connector is designed to meet ANSI B , ASMEVIII, API 6A/Q1 and other design codes. The design hasthe approval of Lloyds, DNV and Stoomwezen. Fully firetested in accordance with API 6FB parts 1 and 2. Also gastested to meet all aspects of ASME Chapter IX ( bar at 180 C Gas test with bending). CLAMP CONNECTORS offer: Easy Assembly Compact Construction Reduced Weight Metal to metal sealing technology re-usable Flexibility Full Design approvalEngineering Type Approval & TestingG-LOK CONNECTORS have beenapplied to both Cryogenic and hightemperature service which aresubject to thermal very severe thermal shock ( ), the CONNECTORS can beprovided with thermal shrouds toprotect the sealring lips from thefull effects of the thermal shrouded configuration alsooffers protection of the seal ringfrom erosive ASSURANCEGALPERTI ENGINEERING has beensuccessfully audited and awardedthe prestigious BS EN ISO 9001accreditation for its thoroughQuality Assurance ensures strict compliance withall relevant RegulatorySpecifications and codes includingANSI, API, ASME, BS, specifications for ASTMand BS are adhered to, and fulltraceability of all components the latest CNC machine toolsin a modern factory environment,manufacturing is carried out inaccordance with all CONNECTORS , in addition tomeeting the current IndustryStandards for Interchangeability,can be supplied in accordance withvarious designcodes/regulations including.

3 ANSI/ASME API BS 5500 UK Offshore Regulations Customers special requirements Country CodesTYPE APPROVAL TESTINGThe G-LOK range of connectorshas been subjected to extensivestrain gauge and destructivetesting and has been awarded fulldesign approval by Lloyd s LOADINGT ensionThe G-LOK connector is capable ofwithstanding higher tensile loadsthan a conventional ANSI loads can causeconventional flange faces toseparate, providing a leak pathacross the flange face. With thepressure energised bore seal, thisdoes not occur and the G-LOK connector will remain leak CONNECTORS are designed towithstand severe bending loadswithout leaking or tests evaluatingG-LOK CLAMP CONNECTORS haveshown that even under severepressure and bending conditions,the connector does not leak andthe bolting remains the bending moment to6A 0388 TUVAD - Merkblatt WO/TRD CERTIFICATIONBODIESISO9001 LLOYD SREGISTERQUALITYCOMPANY ultimate failure of the pipe has notresulted in connector application with high bendingloads hubs can be offered withrecessed in most cases the bearing areaof the sealring rib is larger than thecross section of the adjoining pipeit becomes impossible to overcompress the sealring within the G-LOK connector.

4 For normal pipingapplications, the compressive limitsare governed by other factors suchas piping flexibility analysis oranchor loads and in practice the G-LOK connector will alwaysperform under the appliedcompressive Shock3 Quality Type Approval & TestingAPI 6FB FIRE TESTING - ASME B CHAPTER IX GAS TESTThe need for correct analysis of product performance is a prerequisite when specifying pipe successfully completed strain gauge testing under full load conditions, fire testing to API 6FB parts1 and 2 and full gas testing under the conditions of ASME B CHAPTER IX GAS at temperature plus bending,the G-LOK range of CLAMP CONNECTORS suits most testing and witnessing, resulting in Lloyds Register Type Approval, coupled with extensive FiniteElement Analysis during the fire test programme, affords clients one of the most comprehensively tested clampconnector G-LOK Connector is designed to offer the strength and sealing integrity ofa welded joint and the versatility of a mechanical joint.

5 It serves the samepurpose as a bolted flange assembly, with the advantages of being more easilyinstalled, lighter and self-energized, pressure activated connection, the G-LOK CLAMP -typeconnector consists of four basic elements: (1) Hub (2) Clamps (3) Seal (4) BoltingThe hubs are usually welded to pipe; the seal is installed and the bolting istightened on the clamps to form a pipe connector that provides superiorstrength and leak integrity. The G-LOK is commonly used in service withtemperatures of up to 650 C. The G-LOK alsoexcels in high pressure applications, whereworking pressure of 30,000 psi is G-LOK CLAMP has been designed for theoptimum strength of a bolted the bolts are perpendicular to the axis ofthe pipe, they do not receive direct bendingand pressure loads. This system of clampingprovides greater strength than ANSI or APIflanges at a fraction of the seal size andweight as a result of this design.

6 Less boltingtorque is required for proper seating of the design of the connector provides considerable stored energy in the systemwhen compared with ANSI or API flanges. This stored energy works to provideleak resistance during thermal cycling andmaintains proper bolt properly installed, the G-LOK willusually provide greater bending and torsionalstrength than the connecting pipe. The fullface contact of the connector resists bendingand ensures rigidity not provided by otherclamp-type CONNECTORS . The pressure andtemperature limitations are determined onlyby the materials of THE G-LOK CONNECTORS SEALSThe seal ring in the G-LOK resembles a T in cross section. The base of the T is the rib that is held by abutting hub faces as the connection is made up. Thetop of the T forms the lips that seal against the inner surfaces of the the assembly of the connection, the clamps fit over the two hubs, and as theydraw the hubs together the seal ring rib ensures proper seal the hubs are drawn together by the CLAMP assembly, the seal ring lips deflectagainst the inner sealing surfaces of the hubs.

7 This deflection elastically loadsthe lips of the seal ring against the inner sealing surface of the hub, forming theself-energized seal. Internal pressure reinforces this seal, so the sealing action ofthe G-LOK is both self-energized and pressure CLAMP CONNECTORS are interchangeable with other CONNECTORS designedand manufactured according to the same The AdvantagesG-LOK std free positionG-LOK std made-up positionG-LOK recessed free positionG-LOK recessed made-up positionG-LOK shrouded free positionG-LOK shrouded made-up position5 Designed To Withstand Severe ConditionsThe G-LOK connector has been designed for manydifferent critical service applications. Many of theseinvolve rapid cyclic operating conditions over extendedperiods of time, with various combinations of bothpressure and temperature. To ensure compliance withthe applicable design codes with regard to these severethermal and pressure excursions, G-LOK utilizes stateof the art engineering Element Analysis (FEA) allows the detailedexamination of all connector elements under thesevarying CONNECTORS VS ANSI FLANGEThe G-LOK CLAMP connection has a significantly smaller diameterand a shorter lenght than that a comparably rated ANSI or API ringjoint flange connection, reducing weight and space required G-LOK is especially well suited to systems that require closepiping and hookup arrangements.

8 As there are no bolt holes toalign, the G-LOK CLAMP may be rotated to conveniently locate thebolts for easy assembly and disassembly of the HUB TYPE 12M102(12 SCH. 160)G-LOK CLAMP TYPE 12MG-LOK SEAL RING TYPE 102 ASSEMBLY WEIGHT KG 270 GC COMPACT FLANGE12 2500 SCH. 160 ASSEMBLY WEIGHT KG. 469 WELDING NECK FLANGE12 2500 RTJ SCH. 160 ANSI B WEIGHT 1710 KGSIZEWEIGHTS GIVEN ARE APPROXIMATE PER COMPLETE CONNECTIONG-LOK CONNECTORS VS FLANGES2 3 4 6 8 10 12 16 ASSEMBLYWEIGHT FLANGES1500#ASSEMBLYWEIGHT SelectionHOW TO SELECTTHE G-LOK CONNECTOR1) Determine the followinginformation needed to correctly sizethe G-LOK connector: Maximum Service Pressure andTemperature (Your DesignConditions) The engineering or industrycode your project hasspecified. (ASME VIII, ,etc.) Pipe size and schedule orthe and of theweld end. Your piping ) Refer to the tables in this catalogue: Locate your pipe size andschedule in the Butt weld hubtable on pages 16 to 23, thenread across to the correspondinghub size (third column).

9 As anexample, the 12 schedule 160 Piperequires a G-LOK Hub size note that this chart has weights anddimensions for this hub and for most popular hubsizes. The G-LOK number 12M102 designates the correctclamp, bolting and seal ring sizes for this first number refers to the pipe and CLAMP size, inour example the pipe size is 12 and the CLAMP wouldbe the 12M. More information on the CLAMP can belocated in the CLAMP table on page 26 to 27. The final set of figures is the G-LOK seal for thisconnection (in our example this would be a 102). TheG-LOK seal chart is located on page 24 to ) Finally, refer to the pressure-temperaturerating charts, on pages 28 to 35, toensure that the selected G-LOK connector meets the designpressure and temperaturerequirements for the code towhich it is being standard line of G-LOK CONNECTORS andproducts are available inmaterials and sizes to fitnearly any if your requirements,pipe size, material ordesign conditions, arenot covered by one ofour charts, pleasecontact GalpertiEngineering.

10 We have anengineering and designstaff ready to help yousolve your most TO ORDERTHE G-LOK CONNECTORA fter following the selection procedures theinformation necessary for ordering G-LOK connectorsis the quantity, the hub number and material, the sealnumber and seal material, and the CLAMP number andclamp G-LOK assembly consists of the following: Two G-LOK Hubs One G-LOK CLAMP Set, with four studs and eightnuts (Spherical washer available on request) One G-LOK Seal Ring12M102 G-LOK CLAMP SETSEALRINGSIZE 10212 G-LOK HUB7 Assembly and DisassemblyCHECK PIPE ALIGNMENTCHECK STAND OFFBOLT TIGHTENINGFINAL CHECKHub and seal ringseating surfaces must beclean and free fromforeign bolt tighteningcheck an equal gapbetween both sides ofhubs and betweenclamps should betightened to keepspacing between clamphalves approximatelyequal. CLAMP segmentsshould be shocked withsuitable soft facedhammer to aidassembly. Refer to thetorque/preloadvalues on page seal ring shouldrock slightly against hubface.