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mechanical seal coding types and categories
- 1. D-1875-823- D-1875-823-9200 9200 Tungsten Carbide UK US Partcode 0450 / 500 / 0450 / 500 / 277 277 Material code Sintered Silicon carbide Part code “BP” seat 45.0 mm Size code 0450 / 596 / 0450 / 596 / 171 171 Resin carbon Primary ring 45.0 mm 0450 / 594 / 0450 / 594 / 134 134 Fluoroelastomer Bellows 45.0 mm 0450 / 591 / 0450 / 591 / 001 001 316 SS Metal part assembly 45.0 mm Drawing number 3 digit Sequential number Seal head assembly size Prefix drawing size 8.5x11 A9-3500-187- A9-3500-187-9051 9051 Seal head type Material code carbon
- 2. 0000 - 218- 0000 - 218 - 9549 9549 R / 0430 / 35 / R / 0430 / 35 / 134 134 43 mm 3.5 mm Inside diameter Cross section Material code Fluoroelastomer Metric O-ring Material code Fluoroelastomer Size code UK US O-ring Part code 2180 / 123 / 2180 / 123 / 134 134 Material code Fluoroelastomer Part code O-ring BS 1806 (AS 568) series size 218 Size code O-ring mm series inch series BS 1806 (AS 568) series size 218
- 3. UK Part code Hex headcap screws 300 300 301 301 Socket head cap screws 304 304 Knurled point set screws 305 305 Cup point set screws 302 302 Dog point set screws Thread/size code Examples : 1/4 = 35 5/16 = 36 3/8 = 37 7/16 = 38 1/2 = 39 5/8 = 40 3/4 = 41 7/8 = 42 1 = 43 UNC M3 = 76 M4 = 77 M5 = 78 M6 = 79 M8 = 80 M10 = 81 M12 = 82 M14 = 83 M16 = 84 M18 = 85 M20 = 86 M22 = 87 M24 = 88 Metric coarse 3/8 = 60 1/2 = 61 3/4 = 62 1 = 63 1 1/4 = 64 1 1/2 = 65 NPT Length code 1mm = 01 step of 1 to 20mm = 20 ~~~~~~ 25mm = 21 step of 5 to 250mm = 66 Use formula code=20+(Length-20)/5 5.5 = 70 6.5 = 71 22 = 76 24 = 77 26 = 78 28 = 79 Cap screws, Nuts & Set screws etc Washer 316 316 317 317 Threaded plug 320 320 Hex. nut 329 329 346 346 Part code Stud 7906 / 305 / 7906 / 305 / 001 001 Material code 316 SS Cup point set screw 79 is Metric coarse M6 thread Thread/size code Length code 06 is Length 6 mm mm series Part code Part code 3703 / 305 / 3703 / 305 / 001 001 Material code 316 SS 37 is UNC 3/8 thread Thread/size code Length code 03 is Length 3/8 *8 inch series Cup point set screw Blank Plug
- 4. US Examples : 1125- 1125-2005 2005- -000 000- -0550 0550 Material code 316SS 1/4” Nominal diameter Length code for length code 0: 1/16” increment 1: 1/32” increment 0: Not applicable 0: Socket head 1: Slotted head Pitch code 1/16” increment 05 x 1/16= 5/16” 20 TPI 1: Cup point 4: Full dog point 7: Knurled cup point 1: Set screw 2: Other screw 2125- 2125-2005 2005- -000 000- -0550 0550 for length code 0: 1/16” increment 1: 1/4” increment 0: Not applicable 1: Low head 1: Socket Head cap screw 2: Hex. Head cap screw 1125- 1125-2005 2005- -000 000 Nominal diameter Pitch code 04 (0.112”) - 40 or 48 05 (0.125”) - 40 or 44 06 (0.138”) - 32 or 40 08 (0.164”) - 32 or 36 10 (0.190”) - 24 or 32 25 (0.250”) - 20 or 28 31 (0.312”) - 18 or 24 37 (0.375”) - 16 or 24 43 (0.437”) - 14 or 20 50 (0.500”) - 13 or 20 56 (0.562”) - 12 or 18 62 (0.625”) - 11 or 18 75 (0.750”) - 10 or 16 87 (0.875”) - 9 or 14 XA (1.000”) - 8 or 14 UNC UNF Cap screws, Nuts & Set screws etc
- 5. Seal Coding JohnCrane EMA have two coding methods Seal Description Code – 35 mm T2/BR1C1/WM Seal Computer/Order Code – 0350/2/--/WM/384A Also: John Crane Sealol John Crane Flexibox John Crane Safematic John Crane US have their own coding systems at present.
- 6. Seal Description Code 35mm T2 / B R 1 C 1 / WM 35 mm T2 / B R 1 C 1 / WM Seal size Seal size Seal type Seal type Materials Materials Secondary Secondary and and Tertiary Tertiary Primary ring Primary ring (Face) (Face) Metal parts Metal parts excluding excluding spring spring Mating ring Mating ring (Seat) (Seat) . . Mating ring Mating ring shape/type shape/type (Seat) (Seat) Spring Spring
- 7. Seal Computer/Order Code Materialgroup Material group Seal size Seal size 0350 / 2 / -- / WM / 384A 0350 / 2 / -- / WM / 384A Seal type Seal type Variant Variant from from standard standard Mating ring Mating ring shape/type shape/type (Seat) (Seat) . .
- 8. A A Springs Springs H H Flexible Member Flexible Member Flourocarbon Flourocarbon R R1 1 X X Face Face (Primary Ring) (Primary Ring) Metal Parts Metal Parts (Hardware) (Hardware) Seat Seat (Mating Ring) (Mating Ring) Carbon Carbon 316 SS 316 SS Silicon Carbide Silicon Carbide Hastelloy C Hastelloy C UK UK
- 9. X X Springs Springs H H Flexible Member Flexible Member Flourocarbon Flourocarbon P P15 151 1 D D81 81 Face Face (Primary Ring) (Primary Ring) Metal Parts Metal Parts (Hardware) (Hardware) Seat Seat (Mating Ring) (Mating Ring) Carbon Carbon 316 SS 316 SS Silicon Carbide Silicon Carbide Hastelloy C Hastelloy C US US
- 11. TYPE VERSION COMMENTS 5610Single o-ring flush gland 5610Q Single o-ring w / quench flush, quench & drain 5620 Dual o-ring double or tandem operation 5620PR Dual o-ring w / pumping ring double or tandem operation 5611 Single elastomer bellows flush gland 5611Q Single elastomer bellows w / quench flush, quench & drain 5615 Single metal bellows flush gland 5615Q Single metal bellows w / quench flush, quench & drain 5625 Dual metal bellows double or tandem operation 5625PR Dual metal bellows w / pumping ring double or tandem operation Seal Type Definition: Note: PR & Q not used in EAA variant codes
- 12. EAA Coding ForT5600 Variants - Single Seals ANSI/ DINStand ard Bore ANSI Oversize Bore Standard Quench Standard Quench Rotating Seat - SS Rotating Head - HS Rotating Seat - SQ Rotating Head - HQ Rotating Seat - SO Rotating Head - HO Rotating Seat - SX Rotating Head - HX Example: 35mm T5610 standard bore rotating seal head with quench: 0350/5610/HQ/BH/matl
- 13. EAA Coding ForT5600 Variants - Dual Seals ANSI/ DINStand ard Bore ANSI Oversize Bore Standard Pumping Ring Standard Rotating Seat - SS Rotating Head - HS Rotating Seat - SP Rotating Head - HP Rotating Seat - SO Rotating Head - HO Rotating Seat - SX Rotating Head - HX Pumping Ring Example: 53mm T5620 oversize bore rotating seat with pumping ring: 0530/5620/SX/BH/matl
- 14. Materials Description CodingSystem AAR1SH (A-W-11) = 299G Example: Typical Single Pusher Seal Materials Adaptive Hardware Sleeve O-Ring Gasket Bush Sleeve Asm Gland Asm Inboard Seal Primary O-ring Face Seat Seat O-Ring Seal/Primary Ring Adaptors Spring GlandAdapt O-Ring
- 15. Materials Description CodingSystem AAR1S1 (A-WR11) = 384G Example: Typical Elastomer Bellows Quench Seal Materials Inboard Seal Bellows Face Seat Metal Parts Spring Adaptive Hardware Sleeve O-Ring Gasket Bush Sleeve Asm Gland Asm GlandAdapt O-Ring Seat O-Ring
- 16. Materials Description CodingSystem XARXS- (AAW-11) XARXS- = 340G Example: Typical Dual Metal Bellows Seal Materials Inboard Seal Bellows Face Seat Seat O-Ring Seal/Primary Ring Adaptors Spring Adaptive Hardware Sleeve O-Ring GlandAdapt O-Ring Gasket Bush Sleeve Asm Gland Asm Outboard Seal Bellows Face Seat Seat O-Ring Seal/Primary Ring Adaptors Spring