Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108TABLE OF CONTENTS PAGE 5 1 INTRODUCTION 3 2 FLANGES 7 - 20 1 Threaded, Blind & Weld Neck Flanges (As per API-6A) 1.1 Pressure Rating - API 6B-2000 PSI W.P. (With R or RX type Ring Gasket) 7 1.2 Pressure Rating - API 6B-3000 PSI W.P. (With R or RX type Ring Gasket) 7 1.3 Pressure Rating - API 6B-4000 PSI W.P. (With R or RX type Ring Gasket) 7 2 Integral Flanges (As per API-6A) 2.1 Pressure Rating - API 6BX-2000 PSI W.P. (With BX type Ring Gasket) 8 2.2 Pressure Rating - API 6BX-3000 PSI W.P. (With BX type Ring Gasket) 8 2.3 Pressure Rating - API 6BX-5000 PSI W.P. (With BX type Ring Gasket) 8 2.4 Pressure Rating - API 6BX-10000 PSI W.P. (With BX type Ring Gasket) 8 2.5 Pressure Rating - API 6BX-15000 PSI W.P. (With BX type Ring Gasket) 8 2.6 Pressure Rating - API 6BX-20000 PSI W.P. (With BX type Ring Gasket) 9 3 Blind & Weld Neck Flanges (As per API-6A) 3.1 Pressure Rating - API 6BX-10000 PSI W.P. (With BX type Ring Gasket) 9 3.2 Pressure Rating - API 6BX-15000 PSI W.P. (With BX type Ring Gasket) 9 3.3 Pressure Rating - API 6BX-20000 PSI W.P. (With BX type Ring Gasket) 10 4 Blind & Test Flanges (As per API-6A) 4.1 Pressure Rating - API 6BX-10000 PSI W.P. (With BX type Ring Gasket) 10 4.2 Pressure Rating - API 6BX-15000 PSI W.P. (With BX type Ring Gasket) 10 4.3 Pressure Rating - API 6BX-20000 PSI W.P. (With BX type Ring Gasket) 10 5 Blind Flanges (Large Diameter) (As per API-6A) 5.1 Pressure Rating - API 6BX-2000 PSI W.P. (With BX type Ring Gasket) 11 5.2 Pressure Rating - API 6BX-3000 PSI W.P. (With BX type Ring Gasket) 11 5.3 Pressure Rating - API 6BX-5000 PSI W.P. (With BX type Ring Gasket) 11 5.4 Pressure Rating - API 6BX-10000 PSI W.P. (With BX type Ring Gasket) 11 5.5 Pressure Rating - API 6BX-15000 PSI W.P. (With BX type Ring Gasket) 11 5.6 Pressure Rating - API 6BX-20000 PSI W.P. (With BX type Ring Gasket) 11 6 Flanges (Threaded, Slip-on Welding, Blind Socket Welding Lapped & Welding Neck) 6.1 Class 150 Flanges (As per ANSI B16.5) 12 6.2 Class 300 Flanges (As per ANSI B16.5) 13 6.3 Class 400 Flanges (As per ANSI B16.5) 13 6.4 Class 600 Flanges (As per ANSI B16.5) 14 6.5 Class 900 Flanges (As per ANSI B16.5) 14 6.6 Class 1200 Flanges (As per ANSI B16.5) 15 6.7 Class 2500 Flanges (As per ANSI B16.5) 15 7 Forged Steel Flanges for Pipe Line Systems (Blind & Welding Neck) 7.1 150 lb. MSS SP-44 Flanges 16 7.2 300 lb. MSS SP-44 Flanges 16 7.3 400 lb. MSS SP-44 Flanges 17 7.4 600 lb. MSS SP-44 Flanges 17 7.5 900 lb. MSS SP-44 Flanges 17 8 Forged Steel Flanges (As per API-605) 8.1 Class-75 Welding Neck & Integral Flanges 18 8.2 Class-150 Welding Neck & Integral Flanges 18 8.3 Class-300 Welding Neck & Integral Flanges 19 8.4 Class-400 Welding Neck & Integral Flanges 19 8.5 Class-600 Welding Neck & Integral Flanges 20 8.6 Class-900 Welding Neck & Integral Flanges 20 3 STUDS & NUTS 21 - 23 1 Studs &  Nuts (As per API-6A & ANSI B16.5) 1.1 Standards / Material Specifications 21 1.2 Bolting Reqirements for API End Flanges (As per API-6A) 21 1.3 List of Bolting Specifications for ANSI B16.5 Flange 22 1.4 Flange Chart showing Bolt Sizes & Ring Gasket Sizes 23 4 RING GASKET & RING GROOVE DIMENSIONS (As per ASME B16.20 & API-6A) 24 - 28 1 Type R Ring Gaskets (As per ASME B16.20) 24 - 25 2 Type R Ring Gaskets (As per API-6A) 26 3 Type RX Ring Gaskets (As per API-6A) 27 4 Type BX Ring Gaskets (As per API-6A) 28