Catalogue 2013 - Bürkle GmbH
Catalogue 2013 - Bürkle GmbH Catalogue 2013 - Bürkle GmbH
Plastics technology | overview of chemical resistanceE-CTFE Ethylene-chlortrifluorethylene (Halar ® )FEP Fluorinated ethylene-propylene (Teflon ® FEP)PETG PolyethyleneterephthalateFPM/FKM Fluoroelastomer (Viton ® )HDPE High-density polyethyleneLDPE Low-densitiy polyethylenePA PolyamidePC PolycarbonatePFA Perfluoro-alkoxy (Teflon ® PFA)PMP Polymethylpentene (TPX ® )PP PolypropylenePS PolystyrenePSUPTFEPVCPVDFSANSIPolysulfonePolytetrafluoroethylenePolyvinylchloridPolyvinylidenfluorideStyrene-acrylnitrileSilicone rubberPlastics Temperature Sterilization 5) Transparency Flexibility Specific Waterabbreviations max. °C min °C steam 4) gas radiation chemical weight absorption1) 2)121°C ethyleneoxide 2.5 kGy formalin,ethanol g/cm 3 %E-CTFE + 150° - 100° yes yes no yes transparent moderate 1.70 < 0.10FEP + 205° - 255° yes yes no yes transparent very good 2.15 < 0.01FPM + 200° - 20° black good 1.90HDPE + 110° - 50° no yes yes yes transparent stiff 0.95 0.01LDPE + 95° - 50° no yes yes yes transparent excellent 0.92 0.01PA + 90° - 0° no yes yes yes transparent stiff 1.13 1.30PC + 135° - 135° yes yes yes yes clear rigid 1.20 0.35PFA + 250° - 270° yes yes no yes transparent excellent 2.15 0.03PMP + 175° - 150° yes yes yes yes glass-clear stiff 0.83 0.01PP + 135° 0° yes yes no yes transparent stiff 0.90 0.02PS + 70° - 20° no no yes yes glass-clear stiff 1.05 0.05PSU + 165° - 100° yes yes yes clear stiff 1.24 0.30PTFE + 270° - 270° yes yes no yes white excellent 2.25 < 0.01PVC + 70° - 30° no 3) yes no yes clear stiff 1.35 0.06PVDF + 160° - 4° yes yes yes yes transparent stiff 1.78 0.04SAN + 95° - 40° no yes no yes glass-clear stiff 1.03 0.05SI + 180° - 60° yes yes no yes transparent excellent 1.10PETG + 70° + 5° no ? ? yes glass-clear stiff 1.78 0.701)Even higher for short periods2)Brittle temperature3)Except PVC hoses, which can be sterilized with steam at a temperature of 121 °C4)Frequent steam sterilization reduces mechanical stability!5)Clean apparatus with distilled water first (to avoid stress cracking corrosion). In the case ofclosed vessels, remove or slightly open lid, do not close lid tight again until the vessel hascooled down.Substance class at 20 °C ABS ECTFE HDPE LDPE PA PC PMP PP PS PTFE/FEP/PFA PVC SAN SIAldehydes - + + + 0 0 0 + - + - - 0Alcohols alipathic + + + + 0 + + + + + + + +Esters - + 0 0 + - 0 0 - + - - 0Ethers - + 0 - + - - - - + - - -Ketones - 0 0 0 + - 0 0 - + - -Carbohydratesaliphatic - + + 0 + 0 0 + - + + - -aromatic - + + 0 + - - 0 - + - - -halogenated - + 0 - 0 - - 0 - + - - -Acids, weak/dilute 0 + + + 0 0 + + 0 + + 0 0Acids, strong/concentrated - + + + - - + + 0 + + - -Acids, oxidising - 0 0 0 - - 0 0 - + - - -Bases 0 + + + 0 - + + + + + ++ = excellent chemical resistanceThe substance does not result in any damage to the plasticafter 30 days of permanent contact. The plastic may remainresistant for years.0 = good/limited chemical resistanceWithin 7 to 30 days of permanent contact, the substanceprovokes minor damage which may be reversible (softening,swelling, reduction of mechanical strength, discolourations).- = low chemical resistanceNot suitable for permanent contact with this substance.Damage to the plastic may occur immediately (reduction ofmechanical strength, deformation, discolourations, splits,dissolution, risk of breakage).251
Suitable thread adapters | for many container threadsPlastic barrels and containers can have a wide rangeof thread types. Some are standardized according toDIN, BSI or US standards. Other threads are manufacturer-specific.We can supply suitable adapters formost containers so that discharge valves, pumps andother accessories can be safely attached.Various steps are necessary in order to select thecorrect adapter. Proceed as follows:1. First use the thread table to select the containerthread.If possible use calipers for the measurement, althoughmost threads can be measured accuratelyenough with a ruler.If your container has an outer thread you will requirean adapter with an inner thread. Containerswith an inner thread require adapters with anouter thread.2. In the Adapter overview on page 26/27 youwill find the suitable adapter.All thread descriptions refer directly to the adapter.This means that if your container has a ¾" outerthread you will require an adapter with a ¾" innerthread. If you cannot find the necessary adapterhere, or if you cannot determine the thread size,just send use a screw cap and we will send you asuitable adapter.ExampleYour container thread is an outer thread with a diameterof 71 mm. You want to use a PP barrel pumpwith a barrel screw joint. Use the thread table to determinethe type of thread. As it is a 71 mm threadyou will require an adapter with a 71 mm inner thread.The barrel screw joint thread is 2” BSP outer. Thismeans that you need an adapter from 71 mm inner to2" BSP inner. In the Adapter table on page 26 youwill then find the corresponding article number0600-1003.Threads overviewA B C Thread Threadmm mm mm description type53 5 50,5 51 mm, DIN 51*) sawtooth59-60 6 55,8 61 mm, DIN 60 sawtooth61 6 55,8 61 mm, DIN 60 sawtooth71 6 66,5 71 mm, DIN 71 sawtooth59 2,2 57,5 2" BSP/R2" steel drum fine thread sawtooth64,5 5 60 63 mm, 64 mm BSI sawtooth33,5 3 32,7 35 mm round/std.69,5 5,5 65 2" coarse thread Mauser L-ring sawtooth56 3,5 52,5 Tri-Sure/2" coarse thread v. Leer/Tri-sure sawtooth63,2 4,25 57,5 US drum thread sawtooth*) old and alternative thread names are printed semibold252www.buerkle.de | info@buerkle.de | Hotline +49 (0) 76 35 8 27 95-0
- Page 201 and 202: Funnels | transparent, available in
- Page 203 and 204: Buechner funnel PPSedimentation fun
- Page 205 and 206: Laboratory beakers/Griffin beakers,
- Page 207 and 208: Graduated cylinders, tall formGradu
- Page 209 and 210: Measuring jugs industrialLight and
- Page 211 and 212: Volumetric flasks PPVolumetric flas
- Page 213 and 214: Pi-Pump | safety pipette controller
- Page 215 and 216: PVC industrial tubingPVC pressure t
- Page 217 and 218: Silicone tubingHose cutterVery flex
- Page 219 and 220: Flow indicatorsFlow indicators give
- Page 221 and 222: T-connectorsY-connectorsAngled conn
- Page 223 and 224: Universal hose tubing connectors Re
- Page 225 and 226: stop-it hose clampsUtilitymodelThe
- Page 227 and 228: Hose clamp Squeeze-FixHose clips PO
- Page 229 and 230: Valves made of PTFE, two-way/three
- Page 231 and 232: Rapid couplingsFast and safe connec
- Page 233 and 234: Rapid couplings, nw 3.2 mm, female
- Page 235 and 236: Rapid couplings, nw 6.4 mm, female
- Page 237 and 238: Threaded fittingsPPHose nozzle with
- Page 239 and 240: Threaded fittingsSocket with inner
- Page 241 and 242: VacuMan vacuum pumpVacuMan vacuum o
- Page 243 and 244: DesiccatorMercury collectorDesiccat
- Page 245 and 246: HotGripRubiflex protective glovesHa
- Page 247 and 248: Standard bungs siliconeStandard bun
- Page 249 and 250: Magnetic stirring barsBaffle clipsC
- Page 251: Chemical resistance of plasticsChem
- Page 255 and 256: Jerrycan pumps 23Jerrycans 172Jerry
- Page 257: Contents | by item no.Item no. Page
Suitable thread adapters | for many container threadsPlastic barrels and containers can have a wide rangeof thread types. Some are standardized according toDIN, BSI or US standards. Other threads are manufacturer-specific.We can supply suitable adapters formost containers so that discharge valves, pumps andother accessories can be safely attached.Various steps are necessary in order to select thecorrect adapter. Proceed as follows:1. First use the thread table to select the containerthread.If possible use calipers for the measurement, althoughmost threads can be measured accuratelyenough with a ruler.If your container has an outer thread you will requirean adapter with an inner thread. Containerswith an inner thread require adapters with anouter thread.2. In the Adapter overview on page 26/27 youwill find the suitable adapter.All thread descriptions refer directly to the adapter.This means that if your container has a ¾" outerthread you will require an adapter with a ¾" innerthread. If you cannot find the necessary adapterhere, or if you cannot determine the thread size,just send use a screw cap and we will send you asuitable adapter.ExampleYour container thread is an outer thread with a diameterof 71 mm. You want to use a PP barrel pumpwith a barrel screw joint. Use the thread table to determinethe type of thread. As it is a 71 mm threadyou will require an adapter with a 71 mm inner thread.The barrel screw joint thread is 2” BSP outer. Thismeans that you need an adapter from 71 mm inner to2" BSP inner. In the Adapter table on page 26 youwill then find the corresponding article number0600-1003.Threads overviewA B C Thread Threadmm mm mm description type53 5 50,5 51 mm, DIN 51*) sawtooth59-60 6 55,8 61 mm, DIN 60 sawtooth61 6 55,8 61 mm, DIN 60 sawtooth71 6 66,5 71 mm, DIN 71 sawtooth59 2,2 57,5 2" BSP/R2" steel drum fine thread sawtooth64,5 5 60 63 mm, 64 mm BSI sawtooth33,5 3 32,7 35 mm round/std.69,5 5,5 65 2" coarse thread Mauser L-ring sawtooth56 3,5 52,5 Tri-Sure/2" coarse thread v. Leer/Tri-sure sawtooth63,2 4,25 57,5 US drum thread sawtooth*) old and alternative thread names are printed semibold252www.buerkle.de | info@buerkle.de | Hotline +49 (0) 76 35 8 27 95-0
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