Radial Gates CT Series- Brochure

OBX 09/10 EDITION 1 REVISION 1CT-1CTMODEL“Taintor” type radial gates are gates with a pivoting sectionwhich be located in channels and dam spillways either ascontrol elements for water levels or as regulation and dischargeelements in deepwater outlets of dams.It is a unit formed by a mechanically welded curved sectorshaped panel which closes with elastomer profiles attached tothe panel with fixed parts embedded in the concrete. The cylindrical surface or panel is concentrical to the supportshafts, so that the thrust produced by the water will passthrough them; this method therefore only needs a small amountof movement to raise or lower the gate. The loads to be movedinclude the weight of the gate, the friction resistance betweenthe side closures, the piers and the shaft friction resistance.Its main advantages are:Lifting force is considerably lessRegulation capacitySafe and simple operation and rapid lifting2. DESIGN AND MANUFACTURING CHARACTERISTICSAll ORBINOX gates are designed for the specific serviceconditions of each particular case.The structural evaluation is performed using the finite elementsmethod and CAD modelling systems. Standards and criteria used for testing:DIN 19704: “Hydraulic Steel Structures. Criteriafor Design and Calculation”.DIN 19705: “Hydraulic Steel Structures.Recommendation for Design, Construction and Erection”.The gates which are used in channels and dam spillways arewatertight on 3 sides, sides and bottom (fig.1) and aredesigned to support overspills if needed.The gates which are used as a regulation and dischargeelement for deepwater dam outlets are watertight on 4 sides,upper lintel, sides and lower seal (fig. 2). The completestructure is correctly reinforced in order for it to support the highmechanical stresses. A radial gate has the following elements: GateArmsFixed partsActuatorGate:The taintor gate is formed of a skin plate reinforced withhorizontal and vertical beams to form a rigid unit. In somecases the rigidity in the central region is provided by a boxbeam in addition to the horizontal and vertical beams.The gatel is guided at the side by a system of rollers which aresupported along their route on the fixed side parts. Fig. 1 Spillway1. GENERAL DESCRIPTIONFig. 2 Bottom outletReserves the right to chage specifications without noticeORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: orbinox@orbinox.comORBINOX CANADA, ORBINOX USA, ORBINOX BRASIL, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.www.orbinox.comOBX 09/10 EDITION 1 REVISION 1CT-2CTMODELThe gate is guided at the side by a system of rollers which aresupported along their route on the fixed side parts. Arms:The arms joined to the panel are formed by mechanicallywelded structures and transmit the stresses to the concretethrough maintenance free spherical bearings. The bearingshave large-sized bolts through which the thrust is transmitted tothe base plate on the concrete. Base plates are sized in orderto uniformly distribute pressure to the concrete, without saidpressures resulting excessive.Fixed parts:Water tightness on three sides (sides and bottom) is achievedwith special profiles of EPDM elastomer (Ethylene-propylene)located on the panel. These profiles are secured using smallmetal plates and stainless steel screws. Both the side and lowerclosure surfaces are embedded in the concrete and are madeof stainless steel AISI 304.4. ACTUATORSManoeuvres are performed using two double acting hydrauliccylinders, with stainless steel chrome plated shaft. The normaloperation pressure is between 60 and 120 Bar.The hydraulic unit is equipped with a double motor pump andan emergency manual pump. The system is also equipped withautomatic locking for the open position which detects any lossin the gate position and resets the unit until it is positioned inthe completely open position again. The electrical cabinet isequipped with a PLC for programming opening and closuremanoeuvres.5. SERVICE AND LOAD CONDITIONSORBINOX "Taintor" radial gates are designed for:a) Spillway gates: supporting water loads equal to themaximum gate height plus the specified overspill in each case.b) Bottom outlet gates: water loads of up to 100 mwc.Consult our technicians about special overspills and/or higherwater loads.6. ANTI-CORROSION PROTECTION SYSTEMSteel structures permanently immersed in water:Shot blasting SA 2 1/2 50 microns polyamide cured epoxy primer300 microns glassflake reinforced polyamine adduct tarfree epoxy coatingSteel structures in open air:Shot blasting SA 2 1/2 50 microns polyamide cured epoxy primer100 microns aliphatic acrylic polyurethane finish blue RAL 5015Steel structures, embedded in concrete:Shot blasting SA 2 1/2 50 microns polyamide cured epoxy primer7. MATERIALS AND STANDARDSStructural Parts:EN 10025 DIN ASTMS275JR 1.0044 A570 Gr40Stainless SteelsEN 10088 DIN AISIX2CrNi18-9 1.4307 304LX2CrNiMo17 1.4404 316LDUPLEX 2205 1.4462 A240Reserves the right to chage specifications without noticeORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: orbinox@orbinox.comORBINOX CANADA, ORBINOX USA, ORBINOX BRASIL, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINA, ORBINOX S.E.A.www.orbinox.comOBX 09/10 EDITION 1 REVISION 1CT-3CTMODEL1. Gate: S275JR 2. Arms: S275JR 3. Hydraulic Cylinder: Steal with shaft in ASI 4204. Bearing shaft: AISI 4315. Bottom fixed parts: S275JR6. Bottom seat: AISI 3047. Bottom joint: EPDM8. Side fixed parts: S275JR9. Side seat: AISI 30410. Side seal: EPDMPOSSIBLE MATERIAL COMBINATIONSReserves the right to chage specifications without noticeORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: orbinox@orbinox.comORBINOX CANADA, ORBINOX USA, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINAwww.orbinox.comOBX 09/10 EDITION 1 REVISION 1CT-4OPERATING CONDITIONSGate application:Type of gate: Spillway (sealed on 3 sides)Maximum overspill: mmBottom outlet (sealed on 4 sides)Maximum operating pressure: mwcDesign Pressure: mwcCHARACTERISTICSSize of the opening mm x mmActuator: Hydraulic: Hydraulic UnitElectrical Cabinet ( V/ Hz)Observations:TESTSNDTWelding approval: ASME IXOther:OBSERVATIONSCTMODELTAINTOR GATE SPECIFICATIONSReserves the right to chage specifications without noticeORBINOX S.A. Pol. Ind. s/n - 20270 ANOETA - Tel.: +34 943 698030 - Fax: +34 943 653066 - e-mail: orbinox@orbinox.comORBINOX CANADA, ORBINOX USA, ORBINOX COMERCIAL, ORBINOX UK, ORBINOX FRANCE, ORBINOX GERMANY, ORBINOX INDIA, ORBINOX CHINAwww.orbinox.com