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Pressure Safety Products PRODUCT SELECTION GUIDE REVERSE ACTING RUPTURE DISCS TENSION/FORWARD ACTING RUPTURE DISCS LOW PRESSURE RUPTURE DISCS RUPTURE DISC HOLDERS VENT PANELS ALARM SYSTEMS SPECIAL ASSEMBLIES #1 QUALITY PROVIDER OF ENGINEERED PRESSURE SAFETY PRODUCTS PRODUCT SELECTION GUIDE UNDER PERFORMANCE PRESSURE Continental Disc Corporation manufactures rupture discs to our customers’ specifications which protect vessels, equipment and systems against damaging overpressure conditions. QUALITY Quality begins during our first contact with you. That quality is an integral part of every step we take to provide you with what you expect to receive. All manufacturing is performed under an approved ISO 9001 Quality Assurance System. Continental Disc Corporation can supply rupture discs certified to the standards of ASME, the European Pressure Equipment Directive, 3A Sanitary Standards Council and many others. SERVICE A commitment to supply the services you expect: Technical assistance, training and support Fast, technical, easily understood quotations Providing product to your specifications Shipping schedules that are unmatched in the industry Continental Disc Corporation offers an emergency service program to meet your needs. Shipping schedules are adjusted daily to meet your emergency requirements. ® PAGE 2 PERFORMANCE UNDER PRESSURE PRODUCT SELECTION GUIDE // PAGE 3 TABLE WHAT’S INSIDE... OF RUPTURE DISCS CONTENTS REVERSE Acting TEnSIOn/FORWARD Acting ® HPX® .................................8 MICRO X .............................. 12 HPX®-Ta ...........................8 Composite Flat Seat ............. 12 Standard 30° Seat ................. 13 LOTRX® .............................9 Composite 30° Seat .............. 13 RCS ...................................9 ENVIRO-SEAL ....................... 15 ® SANITRX HPX .................10 GRAFSERT® ........................... 15 SANITRX HPX® II ..............10 Tite-Seal Assembly ............... 16 SANITRX® LPX..................11 WMP-Welded Muffled Plug... 16 ICON ...................................... 17 PC-SERT ............................... 17 Tanksert ................................ 17 ULTRA-LOW PRESSURE CAL-VAC® .................................14 POS-A-SET® ..............................14 RUPTURE DISC HOLDERS MISCELLANEOUS Insert Type ...............................21 Vent Panels ................................ 18 HPX-PT Pre-Torqued .........21 Burst Disc Indicator Systems .... 19 Double Disc ........................22 Special Assemblies .................... 20 Union Type ................................22 Industries Served ....................... 23 Full-Bolted ...............................22 Screw Type ...............................22 CLEAN-SWEEP® ......................22 CAL-VAC®/POS-A-SET® ...........22 PERFORMANCE UNDER PRESSURE® PRODUCT SELECTION GUIDE // PAGE 4 RUPTURE DISC SELECTION TREE BASIC Determine Rupture Pressure (RP) Determine Operating Pressure (OP) Yes High Cycling/Pulsating? No Type Selection Type Calculate Operating Above 80% 80% or Below Ratio Required OP RP Reverse Acting Tension Type Rupture Discs for enhanced performance... Rupture Discs Operating Temperature Operating Temperature DETAILED Evaluate Rupture Disc Type Evaluate Rupture Disc Type Pressure / Temp / Vacuum Limitations Pressure / Temp / Vacuum Limitations Non-Fragmenting Design Fragmenting Non-Fragmenting Design Type Selection Type Select Rupture Disc Select Rupture Disc Select Rupture Disc HPX® / HPX®-Ta STANDARD ® SANITRX® HPX / II MICRO X GRAFSERT® SANITRX® LPX COMPOSITE LOTRX® ENVIRO-SEAL ® RCS CAL-VAC POS-A-SET® Don’t Forget to Consider: Gas or Liquid Service Material Requirements (Corrosion & Temperature) Primary/Secondary/Relief Valve Other factors may apply when choosing a rupture disc ® PAGE 4 PERFORMANCE UNDER PRESSURE PRODUCT SELECTION GUIDE // PAGE 5 TENSION TYPE RUPTURE DISCS REVERSE ActiNG RUPTURE DISCS Fig. A Fig. C TYPE OF DISC Process Side Process Side Fig. B Reverse Acting Rupture Discs are oriented in a system with the process media pressure against the convex side of the disc (Figure C), placing the rupture disc in compression. As the burst pressure rating of the disc is reached, the compression loading on the rupture disc causes it to reverse, snapping through the neutral position and causing it to open by a predetermined scoring pattern. Process Side A reverse acting rupture disc provides Tension Type Rupture Discs are oriented in advantages, as compared to tension a system with the process media pressure type rupture discs, which may warrant against the concave side of the rupture disc consideration when selecting a rupture disc. (Figure A, 30° Seat; Figure B, Flat Seat). As the process pressure increases beyond the These advantages include: allowable operating pressure, the rupture disc Available with maximum recommended starts to grow. This growth will continue as the operating pressure ratios up to 95% of the pressure increases, until the tensile strength stamped burst pressure of the material is reached and rupture occurs. Up to full vacuum capabilities without the need of an additional support member Longer service life under cyclic or pulsating conditions No single type of rupture Constructed using thicker materials disc will meet all the providing greater resistance to corrosion numerous applications of an industry. This guide provides a brief overview of the various tension and reverse acting Each type of rupture disc, design rupture discs, holders, accessories and options offered by Continental Disc tension or reverse acting, Corporation. For detailed information has its own characteristics regarding a specific design, refer to specific and capabilities. product literature, speak with your local representative or contact the factory directly. PERFORMANCE UNDER PRESSURE® PRODUCT SELECTION GUIDE // PAGE 6 RUPTURE DISC SELECTION TABLE D E N staNdard Materials** COMPatible HOLDERS F NG X. sta ) ® A RST RA E H X U ON O E IT O M DED RT OV B CONTINENtal DISC BURST NG CONTINENtal DISC M N P PROcess O FLOW E RI AB RELIEF ON O W T lati CORPOratiON SIZE PressURE CORPOratiON ED AS DED E rati U T EE O Y ENVIRONMENT DIRectiON D UPPO N BDI-FL RUPTURE DISC TYPE RANGE UUM RUPTURE DISC TYPE E QU N S W YP E Y IS NG lted R RE OMM V UM T S R A O ITE ac or 316L SS R U O NUM 400 600 O fact I B H IRED ® O SEAL AL W V N- T EL - C BLE DISC ITAR PH REC F SAFET V - tal OMM OY OY C276 OY UUM ON K NU I N erati QU LL LL N UM AILABLE N AILABLE SERT I A IC OU LL RA ress RE V V U U ac N (1 A REC OP P M V RE F AL ALL ALL N 316 SS A ta G UN I F CLEA TITE SCRE P D SA certificati YES NO A B.D.I. Gas or Liquid 90% ZERO 1” - 12” 10 - 2000 psig HPX® (static, cyclic or or -5% NO HPX® 25 - 300 mm 0,689 - 13,8 barg ª ª ª ª ª ª ª ª ª ª ª pulsating) 95% -10% Gas or Vapor ZERO 1” - 12” 10 - 800 psig HPX-Ta™ (static, cyclic or 90% -5% NO HPX-Ta™ 25 - 300 mm 0,689 - 55,2 barg ª ª ª ª ª ª ª pulsating) -10% Gas or Liquid ZERO 1” - 8” 1.5 - 30 psig LOTRX® (static, cyclic or 90% -5% NO* LOTRX® 25 - 200 mm 0,103 - 2,07 barg ª ª ª ª ª ª ª ª ª ª ª ª pulsating) -10% Gas ZERO 14” - 32” 20 - 180 psig RCS (static, cyclic or 90% -5% NO RCS 350 - 800 mm 1,38 - 12,4 barg ª ª ª ª ª ª ª ª ª ª ª pulsating) -10% Gas or Liquid 90% ZERO 1” - 3” 10 - 250 psig No holder required. SANITRX HPX® (static, cyclic or or -5% NO SANITRX HPX® 25 - 80 mm 0,689 - 17,2 barg ª ª ª ª ª Installs between standard sanitary ferrules. ª ª ª ª pulsating) 95% -10% Gas or Liquid 90% ZERO 1½” - 4” 10 - 500 psig No holder required. SANITRX HPX® II (static, cyclic or or -5% NO SANITRX HPX® II 40 - 100 mm 0,689 - 34,5 barg ª ª ª ª ª Installs between standard sanitary ferrules. ª ª ª ª pulsating) 95% -10% Gas 1½” - 3” 5.8 - 10 psig No holder required. SANITRX® LPX (static, cyclic or 90% ZERO NO SANITRX® LPX 40 - 80 mm 0,40 - 0,689 barg ª Installs between standard sanitary ferrules. ª ª ª ª pulsating) ZERO Gas or Liquid 1” - 36” 15 - 3600 psig MICRO X® 80% -5% NO* MICRO X® (static) 25 - 900 mm 1,03 - 248 barg ª ª ª ª ª ª ª ª ª ª ª ª ª -10% Gas or Liquid Standard, Non- 11/16” - 36” 2 - 1440 psig COMPOSITE FS (static, cyclic or 80% ¾, ½, ¼, YES COMPOSITE FS Metallic 17,5 - 900 mm 0,138 - 99,3 barg ª ª ª ª ª ª ª ª ª ª ª ª ª ª ª pulsating) ZERO Seal Gas or Liquid 3 - 75,000 psig STANDARD ¼” - 30” Standard STANDARD (static, cyclic or 0,207 - 5171 70% YES 30º Seat 6 - 750 mm ¾, ½ ª ª ª ª ª ª ª 30º seat ª ª ª ª ª ª ª ª ª ª pulsating) barg Gas or Liquid Standard, Non- COMPOSITE 1” - 30” 2 - 1440 psig COMPOSITE (static, cyclic or 80% ¾, ½, ¼, YES Metallic 30º Seat 25 - 750 mm 0,138 - 99,3 barg ª ª ª ª ª ª ª 30º seat ª ª ª ª ª ª pulsating) ZERO Seal Within Gas or Liquid 6 INWC 3” - 12” 1 INWC NOT CAL-VAC® (static, cyclic or 1 - 115 INWC min/ CAL-VAC® 80 - 300 mm of min Applicable ª ª ª ª ª ª ª ª ª ª pulsating) max setting Within Gas or Liquid 6 INWC 3” - 12” 1 INWC NOT POS-A-SET® (static, cyclic or 1 - 115 INWC min/ POS-A-SET® 80 - 300 mm of min Applicable ª ª ª ª ª ª ª ª ª ª pulsating) max setting Gas or Liquid 1” - 36” 1 - 59 psig Min./ No holder required. Downstream ENVIRO-SEAL (static, cyclic or 50% NO* ENVIRO-SEAL 25 - 900 mm 0,069 - 4,07 barg Max ª ª ª ª ª ª Installs between standard bore companion flanges. Only ª ª pulsating) Gas or Liquid ½” - 24” 0.25 - 720 psig No holder required. GRAFSERT® (static, cyclic or 80% ZERO NO* GRAFSERT® 13 - 600 mm 0,017 - 49,6 barg ª Installs between standard bore companion flanges.
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