FLANGEISOLERING COBALCH flangeisolering giver mulighed for ved en almindelig flangesamling, at lave en ISOLERENDE FLANGESAMLING med elektrisk adskillelse COBALCH flangeisolering anvendes ikke blot til nye flangesamlinger, men er også velegnet til ombygning af eksisterende flangesamlinger til ISOLERENDE flangesamlinger. Anvendes til rørsystemer med katodisk beskyttelse og som adskillelse i galvanisk element mellem rør af forskelligt materiale, som f.eks. rustfrit og galvaniseret. Der kræves INGEN mekaniske ændringer af standardflanger. stålskive isolerskive isolerhülse isolerpakning isolerskive stålskive 1.3.5.1
COBALCH Flangeisolering fremstilles til alle flangenormer og tryktrin f.eks.: ANSI B16.9 DN 1/2 til DN 48 Class 150 til 2500 DIN DN 15 til DN 1000 Class PN 10 til PN 400 ISO DN 15 til DN 1000 Class PN 10 til PN 400 BS DN 1/2 til DN 48 Class 2,5 bar til 400 bar COBALCH Flangeisolering kan også leveres til specialflanger med specielle mål på pakning, hülse og skiver. COBALCH Flangeisolering består af flangepakning, hülse og dobbelt eller enkel isolerskiver og stålskiver. OBS! Der skal IKKE bores op til større bolthuller. PAKNINGSTYPER Type E Lamineret udførelse Leveres op til 900 mm/36 Type F Lamineret udførelse Leveres op til 1200 mm/48 Type D Ring joints for RTJ-flanger Tekniske data for materiale V/mm Elektrisk modstand Ohm Trykstyrke N/cm² Kompressibilitet i % Nitril lamineret CE-canvas base phenolic B 30 KV ASTM D229 A 40000 psi ASTM D229 A Aramid fibre med høj styrke og nitril bindemiddel DURALON 8500 223 V/mm (8,8 KV/mm) ASTM A149 80-16% ved 5000 psi ASTM F36 Trækstyrke N/cm² 11000 psi ASTM D229 A 1800 psi ASTM D152 i % 1/8 (3,2 mm) tykkelse Anbefalet max. Temperatur for vedvarende drift 1,5% ASTM D229 E-1/10 0,2 ml/hr ASTM F37 Max. -50 - +107 C Max. +371 C 1.3.5.2
Enkelt dele i boltisolering HÜLSER Standardudførelse Spiralvævet polyester MYLAR BØSNING 1/32 0,794 mm Specialudførelse 160 kv/mm 0,8% -60 til +150 C Aramid paper NOMEX-410 22,5 kv/mm IEC243 0,1% -10 til +200 C Høj temp. udførelse Cheramic MICA 25 kv/mm IEC243 0,5% +23 til +600 C ISOLERSKIVER Standardudførelse Phenol ISOLERSKIVE 1/8 3,17 mm 8 kv/mm Max. 1% +110 C Specialudførelse Epoxy EP11 60 kv/mm ASTM D149 0,1% -273 til +180 C Høj temp. udførelse Cheramic MICA 25 kv/mm IEC243 0,5% +23 til +600 C ISOLERSKIVER Standardudførelse Varmvalset stål, cadmieret STÅLSKIVE 1/8 3,17 mm Specialudførelse Rustfrit stål 1.4571/V4A 1.3.5.3
TEKNISKE DATA Alle standard pakninger er 3.2 mm (1/8") tykke. Uden special coating af flangerne kan en tilspændt flangeisolering modstå en overslags-spænding på min 5000 volt i tør luft. Såfremt flangerne og et stykke af den indvendige side af røret er coatet, forøges de ovenfor anførte isoleringsværdier svarende til coatingkvaliteten. COBALCH flangeisolering type "E" og "F" kan leveres i 3 udførelser. Den normale lagerførte, type "E" udførelse "DW" i dimension DN 25 til DN 300 mm. ONLY Leveres med: Kun pakning, dvs. uden isolerbøsning, isolerskive og stålskive. SW Leveres med: Pakning, 1 isolerbøsning, 1 isolerskive og 1 stålskive pr. bolt. DW Leveres med: Pakning, 1 isolerbøsning, 2 isolerskiver og 2 stålskiver pr. bolt. Vi lagerfører type "E" udgave "DW" i DIN 2632 i dimensioner fra DN 15mm/½" til DN 800mm/32", og selvfølgelig også andre dimensioner og tryktrin efter kundeønsker. EKSEMPEL PÅ ORDRE Følgende information er nødvendig: 1. flangedimension 2. flangenorm 3. trykklasse 4. type "E" eller "F" 5. materiale "B" eller "D" 6. pakke "ONLY", "SW" eller "DW" f.eks.: 50 sæt DN 200 - E/B - DIN 2633 - DW BEMÆRKNING! Denne brochure er udarbejdet på grundlag af vore leverandørers erfaringer. Vores garanti indskrænker sig til erstatning for fejlagtig materiale. Forbehold mod tekniske ændringer 09-14-222 1.3.5.4
GLV-UniSeal GGR & T for gas, fuelling systems, airfield and water TYPE GGR (green) TYPE T (white) General use: - Flangeisolation gaskets combined with isolating sleeves and washers satisfy the requirements of cathodic protection. - Flangeisolation kits can be used in chemically agressive environments for sealing flammable gases and liquids. - The GLV flangeisolation kits can also be used for general sealing purposes. The GLV-UniSeal T and GLV-UniSeal GGr make that the gasket can be used wherever an absolutely tight sealing must be achieved with low surface pressure.the silicone or graphite rings stays permanently elastic throughout the entire lifetime of the seal and is does not age or become brittle due to the temperature or media it is subjected to. The O-ring properties of the silicone or graphite ring gaurantee optimal sealing under indirect bolt force load. Generally the gasket can be used with all DIN and ANSI flanges. It can be installed in new systems or replaced during maintenance work. Advantages of GLV-UniSeal T and GLV-UniSeal GGr at a glance - Easy to install - Maintenance-free, no retightening of the bolts required - Blow-out safety due to chambered sealing rings inside grooves - Permanently elastic due to being a pure graphite seal(does not become brittle due to temperature) - Suitable for heavy duty service due to indirect bolt force load - Funktionally reliable due to lowest water absorption The GLV-UniSeal T and GLV-UniSeal GGr installed together with isolation sleeves and washers are tested with 5000 voltage according to DIN 50049/2.3 EN 10204. Potable water version GLV-UniSeal T, GLV T gaskets are made according to KTW/W270 recommendations. General application of GLV-UniSeal T are the pharmaceutical Industry, water statoins ect. Application areas of GLV-UniSeal GGr, German Clean Air Code(TA Luft) DVGW These materials have a high universial resistance to most substances and offer long and safe sealing. This gasket material har universial applications and can be used in many different industries including petrochemical, ags, offshore, water oil, ect. Chemical resistance GLV-UniSeal T gasket i smanufactured from high quality PVC with good resitance against hydrous solutions and non-concentrated acids and alkalines. The silicone rubber RTV 1-02 sealing element has good resistance against diluted alkalis, weak acids, water, hydrous and inorganic salts. It stays permanently elastic and has good aging and degrading resistance. The O-ring-characteristic of the silicone bead ensures absolute tightness of a full elastomer gasket even at low sealing pressure. GLV-UniSeal GGr gasket is manufactured from epoxy resin bound glass roving fabric with good resistance against most chemicals, fuels, oils, water, hot water and steam. 1.3.5.5
GLV-UniSeal GGR & T for gas, fuelling systems, airfield and water Technical details Exception Exceptions are strong alkalines, acids and oxiding agents. Expanded graphite has excellent sealing characteristics and almost unlimited chemical resistance, very good aging characteristics and is temperature resistant up to 500 C. Technical details GLV-UniSeal GGr GLV-UniSeal T DN ANSI 15-900 (DN 1000/1200) 1/2-40 (depending on pressure class, 44 only GLV-UniSeal T) Pressure class PN 6, 10, 16, 25, 40, 63 6, 10, 16, 25, 40 Class 75, 150, 300, 400 75, 150, 300 Isolation material GLV-UniSeal GGr GLV-UniSeal T Retainer Epoxy resin Polyvinylchlorid glass roving fabric (PVC) Color Light green White Mech./electric properties Unit GLV-UniSeal GGr GLV-UniSeal T Test method Thickness mm 4 4-6* - Density g/cm³ 1.9 1.4 DIN 53479 Tensile strength Mpa 200 55 DIN 53455 Impact strenght 20 C/180 C Mpa 500/350 130 ISO 604/DIN 53454 Flexural strength 80 C/180 C Mpa -/150 80/- DIN 53452 Notched bar impact value kj/m² 33 6.3 DIN 53453 Operating temperature C 150 80 DIN/IEC 216/T1 Max peak temperature C 180 100/1 hour DIN 44904 Spec. Volume resistance Ω x cm 10ex16 10ex15 DIN/VDE 303T30 Dieelectric strength kv/mm 13 27 JEC 243/DIN 53841 Water absorption (10mm thickness) ISO 62/1 / DIN mg/% 20 <0.01 53495 * Up to DN 250 = 4 mm, from DN300 = 6 mm Sealing material Unit GLV-UniSeal GGr GLV-UniSeal T Test method Thickness mm 1.5 2.0 - Density g/cm³ 1.25 1.20 DIN E28090T2/ DIN53505 Hardness Shore A - 55 DIN 53504S3D Impact strenght Mpa >45 - DIN 52913 Compression % >20 - ASTM F36A Resilence % >12 - ASTM F36A Chlorite content ppm 50 - - Ash content % 2 - DIN 51903 Surface pressure Mpa 15 - - Max surface pressure Mpa 120 - - Max sustained temperature C +500 +100 - Approvals - DVGW TA-Luft-Conformity KTW/W270 - Available versions Gasket type E (FF) Gasket with bolts holes according to the flange standards (Full Face) Gasket type F (IBC) Gasket without bolts holes according to the flange standards (IBC) 1.3.5.6
1.3.5.7
Tekniske data IsoHexagon flange bolt 200 Technical specifications Insulation bolts for flange insulation to 200 C Bolts according to DIN 1025/931, and special bolts on request Bolt dimensions analogous to DIN/ANSI standard norm Bolt materials: DIN - 8.8, ANSI - B7/2H - special materials on request Material on insulation Test methods Unit Value Material epoxy / glass Colour white Glass filaments per cm 30 Tensile strength in B.condition N/cm > 2000 Tensile strength after curing min. N/cm > 2500 Modulus MPa 50.000 Operating temperature C 200 Spec. volume resistance Ω/cm 10 14 Insulation resistance after water IEC 168 Ohm 10 12 Water absorption ISO 62/1 mg <20 Insulationswasher in 8 mm Epoxy glass Steel washer in DIN 125 Insulationswasher in 8 mm Epoxy glass Steel washer in DIN 125 Forbehold mod tekniske ændringer 09-17-222 1.3.5.8