Pipe Flanges Technical Information Hochdruckfl nsche Manufacturing Standards Our flanges are manufactured in accordance with the following standards: SAE Flanges................................................... SAE J 518 C, ISO 6162 Cetop Flanges ................................................ CETOP RP 63H 4 Bolt Square Flanges.................................... ISO/DIS 6164 Pressure Ratings For maximum flange pressure ratings, please refer to the tables below and the specific flange catalogue page. Please note that the quoted pressure ratings are for a working temperature range of between -20°C to +90°C. For use outside of this temperature range please consult the jbj Techniques technical department. Standard Pressure: Series 3000 psi High Pressure: Series 6000 psi Materials For available flange material please refer to relevant page. If several materials are shown, the choice of material used is at the discretion of the manufacturer. Corrosion Protection Unless otherwise stated on the product range all flanges are delivered in natural condition and coated with a rust inhibitor. Flange Kits All flange kits are supplied with relevant bolts and seals, as indicated on corresponding page. Used Bolts SAE flanges ............metric bolts: DIN 912-8.8 (ISO 4762-8.8) or DIN 912-10.9 (ISO 4762-10.9)∗ ............ UNC bolts: ASA B 18.3 Gear pump flanges ............metric bolts: DIN 912-8.8 (ISO 4762-8.8) 4-bolt square flanges ............metric bolts: DIN 931/934-8.8 (ISO4014/4017-8.8) or DIN 931/934-10.9 (ISO 4014/4017-10.9)∗ Cetop flanges ............metric bolts: DIN 931/934-8.8 (ISO 4014/4017-8.8 or DIN 931-934-10.9 (ISO 4014/4017-10.9)∗ ∗ The system pressure is determined by the wall thickness and the quality of the tube used. 1 Size Maximum Working Pressure PSI BAR 3/ 8" 6000 420 3/ 4" 6000 420 1" 6000 420 11/ 4" 6000 420 11/ 2" 6000 420 2" 6000 420 21/ 2" 6000 420 3" 6000 420 Size Maximum Working Pressure PSI BAR 1/ 2" 5000 340 3/ 4" 5000 340 1" 5000 340 11/ 4" 4000 275 11/ 2" 3000 200 2" 3000 200 21/ 2" 2500 175 3" 2000 135 31/ 2" 510 35 4" 510 35
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