Coupling Gasket

Couplings are a strong heavy-duty system that provides maximum reliability with minimum need for maintenance. This is achieved by use of easy to install corrosion resistant gaskets and carefully dimensioned individual parts of the coupling. The material of construction is selected based on the type of products being handled the atmospheric conditions of installation area.





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Couplings

Couplings are available to join borosilicate glass 3.3 plants pipelines together. They are designed to ensure effective sealing of the joints to avoid inducing any undue stress on the glass. Various grades are available for use in all kinds of service condition.



Couplings with Cast Iron Flangs

These couplings are made of set of cast iron flanges, inserts with appropriate nuts bolts. The insert used in couplings can be of neoprene rubber or asbestos with cast iron splite ring as mentioned below :


JMR

BACKING FLANGE with Rubber Insert NUTS BOLTS Complete Coupling with Rubber Insert
DN Reference QTY Reference QTY D L QTY Reference
25 SCFO 1 2 SCN 1 2 5/16" 2.5" 3 SCTO 1
40 SCFO 1.5 2 SCN 1.5 2 5/16" 2.5" 3 SCTO 1.5
50 SCFO 2 2 SCN 2 2 5/16" 3" 3 SCTO 2
80 SCFO 3 2 SCN 3 2 5/16" 3.5" 6 SCTO 3
100 SCFO 4 2 SCN 4 2 5/16" 4" 6 SCTO 4
150 SCFO 6 2 SCN 6 2 5/16" 4" 6 SCTO 6
225 SCFO 9 2 SCN 9 2 3/8" 5" 8 SCTO 9
300 SCFO 12 2 SCN 12 2 3/8" 6" 12 SCTO 12
400 SCFO 16 2 SCN 16 2 1/2" 8" 12 SCTO 16
450 SCFO 18 2 SCN 18 2 1/2" 8" 12 SCTO 18
600 SCFO 24 2 SCN 24 2 1/2" 8" 12 SCTO 24


BACKING FLANGE with C.I. Split Asbestos C.I. Split with Asbestos rop Insert NUTS BOLTS Complete Coupling with C.I. Split Asbestos
DN Reference QTY Reference QTY D L QTY Reference
25 SCFX 1 2 SCNA 1 2 5/16 2.5 3 SCTX 1
40 SCFX 1.5 2 SCNA 1.5 2 5/16 2.5 3 SCTX 1.5
50 SCFX 2 2 SCNA 2 2 5/16 3 3 SCTX 2
80 SCFX 3 2 SCNA 3 2 5/16 3.5 6 SCTX 3
100 SCFX 4 2 SCNA 4 2 5/16 4 6 SCTX 4
150 SCFX 6 2 SCNA 6 2 5/16 4 6 SCTX 6
225 SCFX 9 2 SCNA 9 2 3/8 5 8 SCTX 9
300 SCFX 12 2 SCNA 12 2 3/8 6 12 SCTX 12
400 SCFX 16 2 SCNA 16 2 1/2 8 12 SCTX 16
450 SCFX 18 2 SCNA 18 2 1/2 8 12 SCTX 18
600 SCFX 24 2 SCNA 24 2 1/2 8 12 SCTX 24


Couplings with Stainless Steel Flangs

These couplings are made of set of SS 304 flanges, inserts with SS 304 nuts & bolts. The insert used in couplings can be of neoprene rubber or asbestos with SS 304 split ring as mentioned in the table.

SS 304 flanges can be supplied against special request


JMR


BACKING FLANGE with Rubber Insert RUBBER INSERTS NUTS & BOLTS Complete Coupling with Rubber Insert
DN Reference QTY Reference QTY D L QTY Reference
25 SCFO 1/SS 2 SCN 1 2 5/16" 2.5" 3 SCTO 1/SS
40 SCFO 1.5/SS 2 SCN 1.5 2 5/16" 2.5" 3 SCTO 1.5/SS
50 SCFO 2/SS 2 SCN 2 2 5/16" 3" 3 SCTO 2/SS
80 SCFO 3/SS 2 SCN 3 2 5/16" 3.5" 6 SCTO 3/SS
100 SCFO 4/SS 2 SCN 4 2 5/16" 4" 6 SCTO 4/SS
150 SCFO 6/SS 2 SCN 6 2 5/16" 4" 6 SCTO 6/SS
225 SCFO 9/SS 2 SCN 9 2 3/8" 5" 8 SCTO 9/SS
300 SCFO 12/SS 2 SCN 12 2 3/8" 6" 12 SCTO 12/SS
400 SCFO 16/SS 2 SCN 16 2 1/2" 8" 12 SCTO 16/SS
450 SCFO 18/SS 2 SCN 18 2 1/2" 8" 12 SCTO 18/SS
600 SCFO 24/SS 2 SCN 24 2 1/2" 8" 12 SCTO 24/SS

BACKING FLANGE with C.I. Split & Asbestos S.S. Split with Asbestos rop Insert NUTS & BOLTS Complete Coupling with S.S. Split & Asbestos
DN Reference QTY Reference QTY D L QTY Reference
25 SCFX 1/SS 2 SCNA 1/SS 2 5/16" 2.5" 3 SCTX 1/SS
40 SCFX 1.5/SS 2 SCNA 1.5/SS 2 5/16" 2.5" 3 SCTX 1.5/SS
50 SCFX 2/SS 2 SCNA 2/SS 2 5/16" 3" 3 SCTX 2/SS
80 SCFX 3/SS 2 SCNA 3/SS 2 5/16" 3.5" 6 SCTX 3/SS
100 SCFX 4/SS 2 SCNA 4/SS 2 5/16" 4" 6 SCTX 4/SS
150 SCFX 6/SS 2 SCNA 6/SS 2 5/16" 4" 6 SCTX 6/SS
225 SCFX 9/SS 2 SCNA 9/SS 2 3/8" 5" 8 SCTX 9/SS
300 SCFX 12/SS 2 SCNA 12/SS 2 3/8" 6" 12 SCTX 12/SS
400 SCFX 16/SS 2 SCNA 16/SS 2 1/2" 8" 12 SCTX 16/SS
450 SCFX 18/SS 2 SCNA 18/SS 2 1/2" 8" 12 SCTX 18/SS
600 SCFX 24/SS 2 SCNA 24/SS 2 1/2" 8" 12 SCTX 24/SS


Quick Release Couplings

These couplings are used wherever there is need to open or close joints frequently. The advantage of using quick release couplings is that they can be opened and closed without use of any tools.


Cast Iron Quick Release Couplings

These couplings are made of cast iron upper flange with slotted bolt holes, hinged quick release bolt and lower backing flange. Epoxy coated or powder coated cast iron flanges can also be supplied against special request.


JMR

DN Reference
25 SCVS 1
40 SCVS 1.5
50 SCVS 2
80 SCVS 3
100 SCVS 4
150 SCVS 6
225 SCVS 9
300 SCVS 12


Stainless Steel Quick Release Couplings

These couplings are made of SS 304 upper flange with slotted bolt holes, hinged quick release bolt and lower backing flange.

SS 316 quick release couplings can also be supplied against special request.



DN Reference
25 SCVS 1/SS
40 SCVS 1.5/SS
50 SCVS 2/SS
80 SCVS 3/SS
100 SCVS 4/SS
150 SCVS 6/SS
225 SCVS 9/SS
300 SCVS 12/SS


Backing Flanges

Backing flanges can be supplied in variety of materials to complement complete couplings described earlier.

The diameter, number of bolt holes & PCD are identical for all types of the same nominal size providing high level of flexibility and ease of replacement and are used with inserts.


Cast Iron Backing Flanges

These flange are made of cast iron. They are made of single piece design up to DN 450 and two-piece design for DN 600.

Epoxy coated or powder coated cast iron flanges can also be supplied against special request.


JMR

DN D H P.C.D. d x N Type Rubber Insert Reference C.I. Split & Asbestos Reference
25 90 10 70 9 x 3 A SCFO 1 SCFX 1
40 105 10 86 9 x 3 A SCFO 1.5 SCFX 1.5
50 120 11 98 9 x 3 A SCFO 2 SCFX 2
80 155 12 133 9 x 6 A SCFO 3 SCFX 3
100 200 14 178 9 x 6 A SCFO 4 SCFX 4
150 280 15 254 11 x 6 A SCFO 6 SCFX 6
225 335 29 310 11 x 8 B SCFO 9 SCFX 9
300 420 35 394 11 x 12 B SCFO 12 SCFX 12
400 525 22 495 12 x 12 B SCFO 16 SCFX 16
450 630 38 585 14 x 12 B SCFO 18 SCFX 18
600 745 48 710 14 x 12 B SCFO 24 SCFX 24


Stainless Steel Backing Flanges

These flange are made of SS 304. They are made of single piece design up to DN 450 and two-piece design for DN 600.

SS 316 flanges can also be supplied against special request.


JMR

DN D H P.C.D. d x N Type Rubber Insert Reference S.S. Split & Asbestos Reference
25 90 10 70 9 x 3 A SCFO 1/SS SCFX 1/SS
40 105 10 86 9 x 3 A SCFO 1.5/SS SCFX 1.5/SS
50 120 11 98 9 x 3 A SCFO 2/SS SCFX 2/SS
80 155 12 133 9 x 6 A SCFO 3/SS SCFX 3/SS
100 200 14 178 9 x 6 A SCFO 4/SS SCFX 4/SS
150 280 15 254 11 x 6 A SCFO 6/SS SCFX 6/SS
225 335 29 310 11 x 8 B SCFO 9/SS SCFX 9/SS
300 420 35 394 11 x 12 B SCFO 12/SS SCFX 12/SS
400 525 22 495 12 x 12 B SCFO 16/SS SCFX 16/SS
450 630 38 585 14 x 12 B SCFO 18/SS SCFX 18/SS
600 745 48 710 14 x 12 B SFCFO 24/SS SCFX 24/SS


Adaptor Backing Flanges

Adaptor flanges are useful when borosilicate glass 3.3 components are to be connected to flanges on equipments made in other materials of construction, with different PCD, bolt hole diameters and bolt configuration. They have larger outer diameter then standard backing flanges and can be supplied undrilled or drilled to required specifications.

Standard adaptor flanges are made of cast iron and supplied with insert. Special adaptor flanges made of aluminum; SS 304 and SS 316 are also available


JMR

DN D D1 D2 H Reference Reference
25 115 43 51 10 SCFA 1 SCFA 1/SS
40 150 58 66 10 SCFA 1.5 SCFA 1.5/SS
50 165 70 81 12 SCFA 2 SCFA 2/SS
80 200 101 112 12 SCFA 3 SCFA 3/SS
100 220 134 148 12 SCFA 4 SCFA 4/SS
150 285 186 196 15 SCFA 6 SCFA 6/SS
225 395 260 282 15 SCFA 9 SCFA 9/SS
300 445 342 363 18 SCFA 12 SCFA 12/SS


Drilled to Table E Drilled to Table F Drilled to Table ASA 150
Reference PCD n x dØ Reference PCD n x dØ Reference PCD n x dØ
SCFA 1/E 82 4 x 12Ø SCFA 1/F 87 4 x 16Ø SCFA 1/A 79 4 x 12Ø
SCFA 1.5/E 98 4 x 12Ø SCFA 1.5/F 105 4 x 16Ø SCFA 1.5/A 98 4 x 12Ø
SCFA 2/E 114 4 x 16Ø SCFA 2/F 127 4 x 16Ø SCFA 2/A 121 4 x 16Ø
SCFA 3/E 146 4 x 16Ø SCFA 3/F 165 8 x 16Ø SCFA 3/A 152 4 x 16Ø
SCFA 4/E 178 8 x 16Ø SCFA 4/F 190 8 x 16Ø SCFA 4/A 190 8 x 16Ø
SCFA 6/E 235 8 x 19Ø SCFA 6/F 260 12 x 19Ø SCFA 6/A 241 8 x 19Ø
SCFA 9/E 324 12 x 19Ø SCFA 9/F 356 12 x 19Ø SCFA 9/A 298 8 x 19Ø
SCFA 12/E 406 12 x 23Ø SCFA 12/F 438 16 x 23Ø SCFA 12/A 432 12 x 23Ø


Inserts

Inserts are fitted to avoid direct contact between backing flange & glass buttress end. They also compensate for any unevenness from manufacturing tolerances. They should ideally be replaced when the joint is re assembled.



Rubber Inserts

Neoprene rubber inserts can be used for temperature up to 123°C.


JMR

DN D D1 H Reference
25 50 36 8 SCN 1
40 65 50 8 SCN 1.5
50 79 62 8 SCN 2
80 110 92 8 SCN 3
100 146 122 8 SCN 4
150 197 174 10 SCN 6
225 275 240 10 SCN 9
300 359 322 10 SCN 12
400 474 431 12 SCN 16
450 555 500 18 SCN 18
600 684 634 18 SCN 24


Asbestos Inserts

These inserts are made of cast iron split ring with asbestos rop of required thickness. Insert with SS 304 split ring with Asbestos rop are available for use with SS backing Flanges.


JMR

DN D D1 H Reference Reference for SS
25 50 36 8 SCNA 1 SCNA 1/SS
40 65 50 8 SCNA 1.5 SCNA 1.5/SS
50 79 62 8 SCNA 2 SCNA 2/SS
80 110 92 8 SCNA 3 SCNA 3/SS
100 146 122 8 SCNA 4 SCNA 4/SS
150 197 174 10 SCNA 6 SCNA 6/SS
225 275 240 10 SCNA 9 SCNA 9/SS
300 359 322 10 SCNA 12 SCNA 12/SS
400 474 431 12 SCNA 16 SCNA 16/SS
450 555 500 18 SCNA 18 SCNA 18/SS
600 684 634 18 SCNA 24 SCNA 24/SS


PTFE Rope Inserts

For use in GMP condition & clean room application, insert with SS 304 split ring with PTFE impregnated rope are available for use with SS backing flanges.

DN D D1 H Reference
25 50 36 8 SCNP 1
40 65 50 8 SCNP 1.5
50 79 62 8 SCNP 2
80 110 92 8 SCNP 3
100 146 122 8 SCNP 4
150 197 174 10 SCNP 6
225 275 240 10 SCNP 9
300 359 322 10 SCNP 12
400 474 431 12 SCNP 16
450 555 500 18 SCNP 18
600 684 634 18 SCNP 24


Compression Springs

Compression springs are used to set the correct bolt load and to maintain it even after gasket has settled ensuring that the coupling remains leak free. They are supplied exclusively in stainless steel.



JMR

DN FREE L INSTALLED L1 Reference
25 - 100 14.5 11.0 SDF 8.5
150 - 300 22.0 18.0 SDF 10.5
450 - 600 28.7 22.7 SDF 13






PTFE 'O' Ring Gaskets With Locking Collar

This is most widely used type of gasket. It is a self-centering design, which is easy to install and aligns correctly in the joint.


JMR

DN D D1 d L Reference
25 42 33 3 5 STR 1
40 57 48 3 5 STR 1.5
50 70 59 3 5 STR 2
80 100 88 3 5 STR 3
100 134 119 4 6 STR 4
150 186 168 4 6 STR 6
225 260 236 4 7 STR 9
300 342 318 4 7 STR 12
400 467 435 6 7 STR 16
450 537 490 6 7 STR 18
600 686 640 8 10 STR 24


PTFE Envelope Gaskets

These gaskets are formed by provided outer PTFE envelop over compressed asbestos fiber core.


JMR

DN Reference
25 STM 1
40 STM 1.5
50 STM 2
80 STM 3
100 STM 4
150 STM 6
225 STM 9
300 STM 12
400 STM 16
450 STM 18
600 STM 24


PTFE Bellows

Bellows are important elements in construction of borosilicate glass 3.3 plants & pipeline. They are mainly used to [1] compensate for expansion and contraction due to change in temperature [2] to avoid stress in plant [3] absorb vibrations from service lines, pumps etc. The maximum operating temperature for these bellow is 180° C


PTFE Bellows (Line Below) Glass to Glass


JMR

DN D D1 D2 L Reference
25 90 41 31 60 SFBN 1
40 105 56 43 60 SFBN 1.5
50 121 69 55 60 SFBN 2
80 155 98 82 65 SFBN 3
100 200 132 111 65 SFBN 4
150 274 184 162 65 SFBN 6
225 340 258 230 65 SFBN 9
300 425 340 308 65 SFBN 12


PTFE Bellows (Line Below) Glass to Other Materials

Adaptor flanges is supplied with this bellow so that it can be drilled as per the configuration of mating flange. However, this adaptor bellow flange can be supplied drilled AS per "Table E", "Table F", or "ASA 150" standards, if Specified.

DN D D1 D2 L Reference
25 115 41 31 60 SFBF 1
40 150 56 43 60 SFBF 1.5
50 165 69 55 60 SFBF 2
80 200 98 82 65 SFBF 3
100 220 132 111 65 SFBF 4
150 285 184 162 65 SFBF 6
225 395 258 230 65 SFBF 9
300 445 340 308 65 SFBF 12



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PTFE Vacuum Bellows Glass to Glass

For pipelines of 80DN and above operating under vacuum, the bellows are provided with an internal sleeve which supports the convolutions without affecting the flexibility of the bellow. These bellows can withstand a temperature of 180°C under full vacuum.

For size upto 50DN, line bellows can be used for these applications.


DN D D1 D2 L L1 Reference
80 155 98 82 70 5 SVBN 3
100 200 132 111 70 5 SVBN 4
150 274 184 162 70 5 SVBN 6
225 340 258 230 70 5 SVBN 9
300 425 340 308 70 5 SVBN 12


PTFE Vacuum Bellows Glass to Other Materials



DN D D1 D2 L L1 Reference
80 155 98 82 70 5 SVBN 3
100 200 132 111 70 5 SVBN 4
150 274 184 162 70 5 SVBN 6
225 340 258 230 70 5 SVBN 9
300 425 340 308 70 5 SVBN 12


Cast Iron Bellows Flanges

These are made of cast iron and supplied with split ring. These are provided with two holes at 180° for distance locking bolts.


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DN D D1 D2 PCD d X N H Reference
25 90 44 54 70 9 x 3 8 SBF 1
40 105 59 66 86 9 x 3 9 SBF 1.5
50 121 71 80 98 9 x 3 10 SBF 2
80 155 102 115 133 9 x 6 10 SFBF 3
100 200 135 146 178 9 x 6 10 SBF 4
150 274 186 202 254 10 x 6 10 SBF 6
225 340 260 275 310 10 x 8 11 SBF 9
300 425 340 363 394 11 x 12 15 SBF 12




STAINLESS STEEL BELLOW FLANGES

These are made of stainless steel and supplied with split ring. These are provided with two holes at 180° for distance locking bolts.


JMR

DN D D1 D2 PCD d X N H Reference
25 90 44 54 70 9 x 3 8 SBF 1/SS
40 105 59 66 86 9 x 3 9 SBF 1.5/SS
50 121 71 80 98 9 x 3 10 SBF 2/SS
80 155 102 115 133 9 x 6 10 SBF 3/SS
100 200 135 146 178 9 x 6 10 SBF 4/SS
150 274 186 202 254 10 x 6 10 SBF 6/SS
225 340 260 275 310 10 x 8 11 SBF 9/SS
300 425 340 363 394 11 x 12 15 SBF 12/SS



Adapter Bellow Flanges

Adaptor bellow flanges are useful when borosilicate glass 3.3 Components with bellow are to be connected to flanges on equipments made in other materials of construction, with different PCD, bolt hole diameters and bolt configuration. They have larger outer diameter then standard bellow flanges and can be supplied undrilled or drilled to required specifications.


Cast Iron Adapter Bellow Flanges

These are made of cast iron and supplied with split ring.


JMR

DN D D1 D2 H Reference
25 115 44 53 7 SBFA 1
40 150 59 65 9 SBFA 1.5
50 165 70 81 9 SBFA 2
80 200 104 115 9 SBFA 3
100 220 133 149 9 SBFA 4
150 285 189 204 11 SBFA 6
225 395 261 280 12 SBFA 9
300 445 342 363 12 SBFA 12


Stainless Steel Adapter Bellow Flanges

These are made of stainless steel and supplied with split ring.


JMR

DN D D1 D2 H Reference
25 115 44 53 7 SBFA 1/SS
40 150 59 65 9 SBFA 1.5/SS
50 165 70 81 9 SBFA 2/SS
80 200 104 115 9 SBFA 3/SS
100 220 133 149 9 SBFA 4/SS
150 285 189 204 11 SBFA 6/SS
225 395 261 280 12 SBFA 9/SS
300 445 342 363 12 SBFA 12/SS


Drilled to Table E Drilled to Table F Drilled to ASA 150
Reference PCD n x dØ Reference PCD n x dØ Reference PCD n x dØ
SBFA 1/E 82 4 x 12Ø SBFA 1/F 87 4 x 16Ø SBFA 1/A 79 4 x 12Ø
SBFA 1.5/E 98 4 x 12Ø SBFA 1.5/F 105 4 x 16Ø SBFA 1.5/A 98 4 x 12Ø
SBFA 2/E 114 4 x 16Ø SBFA 2/F 127 4 x 16Ø SBFA 2/A 121 4 x 16Ø
SBFA 3/E 146 4 x 16Ø SBFA 3/F 165 8 x 16Ø SBFA 3/A 152 4 x 16Ø
SBFA 4/E 178 8 x 16Ø SBFA 4/F 190 8 x 16Ø SBFA 4/A 190 8 x 16Ø
SBFA 6/E 235 8 x 19Ø SBFA 6/F 260 12 x 19Ø SBFA 6/A 241 8 x 19Ø
SBFA 9/E 324 12 x 19Ø SBFA 9/F 356 12 x 23Ø SBFA 9/A 298 8 x 19Ø
SBFA 12/E 406 12 x 23Ø SBFA 12/F 438 16 x 23Ø SBFA 12/A 432 12 x 23Ø


Adaptor Plate for Reactors

Adaptor plates are used as interface when connecting glass flat buttress end components to glass-lined reactor. A combination of steel rubber & PTFE envelop provide an ideal sealing surface with only PTFE coming in contact with process fluids/gases giving excellent resistance to corrosion.

DN D1 D2 L Reference
25 25 60 10 SEMP 1
40 37 80 10 SEMP 1.5
50 50 100 10 SEMP 2
80 75 120 12 SEMP 3
100 100 155 12 SEMP 4
150 150 210 12 SEMP 6
225 200 260 15 SEMP 9
300 300 360 15 SEMP 12


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