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5.9 Button Type remote seal (S26BN)

This remote seal is designed to connect to a process via the NPT threaded connection or to match pipe fitting with an interface 
suitable for the provided mating flange. The button seals, thanks to their accurate design, are projected to carry out accurate 
measurements with medium/high calibrated span (2 MPa - 20 bar - 290 psi approx or greater).

The button type remote seal is to be used only for gauge pressure.

This type of connection is especially suitable for plastic and resins production processes.

For any other detailed information regarding S26BN seals such as pressure limits, vacuum service recommendations, process 
temperature limits, temperature effects and configuration, please refer to product datasheet.

2.3 (3.32)

Thick Gasket 

Ø 24 (15/16)

13.49 (17/32)

6.35 (1/4)

76 (3)

19 (3/4)

146 (5-3/4)

Ø 23 (59/64)

1-1/2 16N-2 for Type 92

1-1/2 16N-2 for Type 92 modified

25 (1)

128 (5-1/32)

212 (8-11/32) max

Ø 35 (1-3/8)

Ø 24 (15/16)

6.35 (1/4)

2.3 (3/32) thick gasket

13.49 (17/32)

Ø 89 (3-1/2)

4 Holes equally spaced

Ø 17/32 in. on Ø 2-1/2 in. bolt circle

2 holes 1/2-13 UNC-2 

 on Ø 2-1/2 in. bolt circle

Ø 23 (59/64)

Ø 34 (1-23/64)

Flange

Spacer

Figure 23: 3-1/4 in. flange extended – type 91

Figure 24: 3-1/4 in. flange extended – type 91 modified

25 (1)

128 (5-1/32)

212 (8-11/32) max

Ø 35 (1-3/8)

Ø 24 (15/16)

6.35 (1/4)

2.3 (3/32) thick gasket

13.49 (17/32)

Ø 89 (3-1/2)

4 Holes equally spaced

Ø 17/32 in. on Ø 2-1/2 in. bolt circle

2 holes 1/2-13 UNC-2 

 on Ø 2-1/2 in. bolt circle

Ø 23 (59/64)

Ø 34 (1-23/64)

Flange

Spacer

Figure 25: 1-1/2 in. threaded union type 92 or 92 modified

24   OI/S26-EN Rev. B 

| 2600T Series Pressure transmitters

Summary of Contents for S26 Series

Page 1: ...des comprehensive range of top quality pressure measurement products specifically designed to meet the widest range of applications ranging from arduous conditions in offshore oil and gas to the laboratory environment of the pharmaceutical industry For more information Further publications for 2600T series pressure products are available for free download from www abb com pressure 266DRH with dire...

Page 2: ...n technology we offer customers application expertise service and support worldwide We are committed to teamwork high quality manufacturing advanced technology and unrivalled service and support The quality accuracy and performance of the Company s products result from over 100 years experience combined with acontinuous program of innovative design and development to incorporate the latest technol...

Page 3: ...ge pressure measurement 13 4 7 Absolute pressure measurement 13 4 8 Mounting a diaphragm seal s equipped transmitter 13 5 Diaphragm seal models 14 5 1 Wafer Remote Seal S26WA and S26WE 14 5 2 Chemical Tee Remote Seal S26CN 15 5 3 Rotating flange diaphragm seals S26Rx 16 5 4 Rotating flange diaphragm seal Ring Joint S26RR 18 5 5 Fixed flange diaphragm seals S26FA S26FE 19 5 6 Off line Threaded Conn...

Page 4: ...ruction Please read this manual before working with the product In case of additional information needs please contact ABB at the address you find at last pages of this manual or at the web site http www abb com pressure The products described in the present manual are not intended for use in NUCLEAR QUALIFIED environments applications 1 2 Models covered by this manual The present manual can be us...

Page 5: ...ntion to the fact that only sufficiently insulated tools conforming to DIN EN 60900 may be used Since the transmitter may form part of a safety chain we recommend replacing the device immediately if any defects are detected In case of use in Hazardous Area non sparking tools only must be employed In addition you must observe the relevant safety regulations regarding the installation and operation ...

Page 6: ...02 96 EC or corresponding national laws e g the ElektroG Electrical and Electronic Equipment Act in Germany Dispose of the product solution directly at a specialist recycling facility do not use municipal garbage collection points for this purpose According to the WEEE Directive 2002 96 EC only products used in private applications may be disposed of at municipal garbage facilities Proper disposal...

Page 7: ...m limits for the transmitter The application is interface level or density measurement Remote seals offer the required constant and equal specific gravity of the pressure transfer fluid on the high and low sides of the transmitter The transmitter body must be located away from the process for easier maintenance The S26 series is available in a variety of seal element types They provide process con...

Page 8: ...N Saddle and socket seal The S26 Series Seal Systems are used on the following transmitters 266xR 266xD where x means any letter Differential pressure transmitters have one or two remote seals Single sided differential pressure transmitters have a single remote seal for tank level applications Gauge and absolute pressure transmitters have a single remote seal The transmitter and seal system are id...

Page 9: ...er that the minimum bending radius of the capillary system is 10 cm 3 9 in For most flow gauge pressure and absolute pressure installations the effect of head pressure is relatively minor and can be canceled out by adjusting zero with the transmitter and seals in their installation position while a known process pressure is applied For liquid level installations head pressures have a more signific...

Page 10: ...ust be vented to atmosphere Figure 3 Level measurement of a liquid in an open tank 4 3 2 Closed Tank Installation Pressure Service Double Seal When a transmitter with two remote seals is used to measure level in a pressurized tank the high pressure side seal element must be located near the bottom of the tank The high seal datum line must be at or below the minimum level The low side seal must be ...

Page 11: ...cess liquid or any liquid with a low vapor pressure relative to the process A filling tee is required at the top of the leg The wet leg can be avoided if the transmitter can be located near the top of the tank so that condensate drains back into the tank Figure 6 Level measurement of a liquid in a closed tank pressure service only condensate trap as option Figure 7 Level measurement of a liquid in...

Page 12: ...nk and the low seal datum line must be at or above the highest interface elevation The minimum level of liquid in the tank must be above the low seal element under all interface conditions The transmitter can be located between the seals above both seals or below both seals when the tank is open or operating under positive pressure The preferred location for 266DLH the transmitter is directly moun...

Page 13: ...ocation 4 7 Absolute pressure measurement An absolute pressure transmitter with a remote seal can be used for measurement of absolute pressure in either a process pipe or tank Locate the seal element in the side or top of the pipe to avoid collection of sediment on the seal diaphragm When the operating absolute pressure range has a minimum value above atmospheric pressure nominally 14 7 psia the t...

Page 14: ...e 12 Be sure that the gasket is properly positioned between the process flange and the seal element gasket surface 4 Tighten bolts firmly and uniformly in accordance with standard industrial flange bolting practices For vacuum service recommendations temperature limits gasket finish temperature effects and configuration please refer to product datasheet Ø D Ø A flushing ring 134 5 3 25 0 98 for 1 ...

Page 15: ...et on sealing surface and insert seal into connection opening 3 Insert 8 cap screws and finger tighten each screw 4 Following a diagonal sequence tighten each cap screw to a torque of 12 4 Nm If you experience a large Zero shift due to temperature change or erratic output 1 Take the chemical tee seals and mount them face up several feet above the transmitter 2 Wait an hour 3 With your thumbs at th...

Page 16: ... by a selectable smooth or serrated gasket seat surface finish The mounting flange is of rotating type and can be supplied on carbon steel or in stainless steel AISI 316 158 6 22 G F Ø C Ø B Ø A 25 0 98 for 1 4 NPT 33 1 30 for 1 2 NPT flushing thread s Ø D Flushing ring option Ø E Ø C Ø E Ø D Ø A Ø B 50 100 150 mm 1 97 3 94 5 91 F Insert lenght available 158 6 22 G Figure 15 Flush rotating flange ...

Page 17: ... 80 EN PN 16 72 2 83 89 3 5 75 2 95 92 3 62 138 5 43 160 6 3 200 7 87 18 0 71 17 0 67 9 5 0 37 8 DN 80 EN PN 40 72 2 83 89 3 5 75 2 95 92 3 62 138 5 43 160 6 3 200 7 87 18 0 71 21 0 83 9 5 0 37 8 DN 80 EN PN 63 NA 89 3 5 75 2 95 92 3 62 138 5 43 170 6 7 215 8 46 22 0 86 25 0 98 9 5 0 37 8 DN 80 EN PN 100 NA 89 3 5 75 2 95 92 3 62 138 5 43 180 7 08 230 9 05 26 1 02 33 1 3 9 5 0 37 8 DN 100 EN PN 16...

Page 18: ...R19 4 1 1 2 in ASME CL 300 48 1 89 90 3 54 114 3 4 5 155 5 6 12 22 35 0 88 20 6 0 81 17 3 0 68 68 3 2 69 R20 4 1 1 2 in ASME CL 600 48 1 89 90 3 54 114 3 4 5 155 5 6 12 22 35 0 88 22 4 0 88 17 3 0 68 68 3 2 69 R20 4 1 1 2 in ASME CL 900 1500 48 1 89 92 3 62 124 4 88 177 8 7 28 45 1 12 31 8 1 25 20 8 0 82 68 3 2 69 R20 4 1 1 2 in ASME CL 2500 48 1 89 114 4 49 146 1 5 75 203 2 8 31 75 1 25 44 5 1 75...

Page 19: ... 89 3 5 75 2 95 92 3 62 127 5 152 4 6 190 5 7 5 19 1 0 79 22 4 0 88 2 0 08 4 3 in ASME CL 300 72 2 83 89 3 5 75 2 95 92 3 62 127 5 168 15 6 62 209 6 8 25 22 4 0 86 26 9 1 1 2 0 08 8 3 in ASME CL 600 72 2 83 89 3 5 75 2 95 92 3 62 127 5 168 15 6 62 209 6 8 25 22 4 0 86 31 8 1 3 7 0 27 8 4 in ASME CL 150 94 3 7 89 3 5 75 2 95 92 3 62 157 2 6 2 190 5 7 5 228 6 9 19 1 0 79 22 4 0 88 2 0 08 8 Size Rati...

Page 20: ...92 165 6 5 18 0 71 15 0 59 72 2 83 88 3 46 4 0 16 4 DN 50 EN PN 40 60 2 36 58 2 28 102 4 02 125 4 92 165 6 5 18 0 71 18 0 71 72 2 83 88 3 46 4 0 16 4 DN 50 EN PN 63 60 2 36 58 2 28 102 4 02 135 5 31 180 7 08 22 0 86 23 0 91 72 2 83 88 3 46 4 0 16 4 DN 50 EN PN 100 60 2 36 58 2 28 102 4 02 145 5 71 195 7 67 26 1 02 27 1 06 72 2 83 88 3 46 4 0 16 4 DN 80 EN PN 16 89 3 5 75 2 95 138 5 43 160 6 3 200 ...

Page 21: ...ection Use of a gate or ball type valve avoids restricting the process line during normal operation not a gasket Connect the seal element to the process pipe at the NPT connection in the end of the lower housing If the element has a flushing connection connect a flushing line with appropriate valving to the 1 4 in NPT connection in the side of the lower housing THREADED PROCESS CONNECTION GASKET Ø...

Page 22: ... 62 39 1 53 1 2in 13 UNC 35 1 1 38 15 8 0 62 1 6 0 06 1 in ASME CL 150 110 4 33 79 4 3 12 39 1 53 1 2in 13 UNC 50 8 2 26 7 1 05 1 6 0 06 1 in ASME CL 300 124 4 88 88 9 3 5 51 2 5 8in 11 UNC 50 8 2 26 7 1 05 1 6 0 06 1 1 2 in ASME CL 150 127 5 98 4 3 87 39 1 53 1 2in 13 UNC 73 2 87 41 1 61 1 6 0 06 1 1 2 in ASME CL 300 155 6 1 114 3 4 5 57 2 24 3 4in 10 UNC 73 2 87 41 1 61 1 6 0 06 DN 25 PN 16 40 1...

Page 23: ... Ø 22 2 0 87 Ø 168 3 6 63 Ø 209 6 8 25 2 1 2 in urea service seal Flange ASME 600 3 in N 4 Holes Ø 25 4 1 131 5 16 45 1 77 Ø 37 5 1 47 Ø 53 2 08 Ø 110 4 33 2 0 07 ANSI B2 1 NPS Ø 155 6 10 134 5 3 1 1 2 in urea service seal Flange ASME 2500 2 in Figure 22 Urea service extended seals with ASME flange For any other detailed information regarding S26PN seal such as pressure limits vacuum service recom...

Page 24: ...guration please refer to product datasheet 2 3 3 32 Thick Gasket Ø 24 15 16 13 49 17 32 6 35 1 4 76 3 19 3 4 146 5 3 4 Ø 23 59 64 1 1 2 16N 2 for Type 92 1 1 2 16N 2 for Type 92 modified 25 1 128 5 1 32 212 8 11 32 max Ø 35 1 3 8 Ø 24 15 16 6 35 1 4 2 3 3 32 thick gasket 13 49 17 32 Ø 89 3 1 2 4 Holes equally spaced Ø 17 32 in on Ø 2 1 2 in bolt circle 2 holes 1 2 13 UNC 2 on Ø 2 1 2 in bolt circl...

Page 25: ...3 2 3 8 95 25 3 3 4 30 16 1 3 16 21 43 27 32 42 86 1 11 16 Ø 22 23 7 8 2 3 3 32 Ø 24 15 16 Ø 23 59 64 Ø 23 59 64 52 2 1 16 78 3 1 16 146 5 3 4 6 35 1 4 13 17 32 2 3 3 32 Thick Gasket Ø 24 15 16 Figure 26 Bracket type 89 Figure 27 Universal type 90 2600T Series Pressure transmitters OI S266 EN Rev B 25 ...

Page 26: ... 2 Mount the O ring on the end of the seal 3 Insert seal into mating fitting and tighten the union connection nut to press the O ring against the fitting surface 134 5 34 29 1 14 16 0 6 54 2 12 16N2 10 0 39 Full Thread Ø 51 2 Ø 39 1 53 9 0 35 14 0 55 2 0 08 Ø 42 1 65 Figure 28 Union connection remote seal basic version Seal with Weld Bushing The remote seal with a weld bushing includes a bushing w...

Page 27: ...nts of the chemical tee flange Substitution of user supplied bolts and gaskets is not recommended Connect the seal element using the following procedure 1 Connect the chemical tee flange as follows Place the gasket on the flange sealing surface and insert flange into the process fitting Insert 8 cap screws and finger tighten each screw Following a diagonal sequence tighten each cap screw to a torq...

Page 28: ...s vessel prior to connecting the element following recommended welding and pressure testing procedure Weld the Cherry Burrell ferrule to the process vessel in accordance with manufacturers recommendations Connect the sanitary aseptic seal to the tank spud or ferrule as follows 1 Remove protective covering from seal 2 Install two O rings on the periphery of the seal and an O ring under each steam c...

Page 29: ...f Buna or Viton are available with the seal Connect the seal as follows 1 Remove protective covering from seal and install the process O ring 2 Insert the seal into the tank spud 3 Position the clamp ring as shown and tighten to seal the O ring against the spud 134 5 3 Ø 49 5 1 94 Ø 85 5 3 36 Ø 119 4 68 18 5 0 72 8 0 31 for thin wall 13 0 51 for thick wall Ø 78 9 3 10 Ø 110 4 33 Ø 152 6 00 19 3 0 ...

Page 30: ...onnecting the seal following a recommended welding and pressure testing procedure Weep hole Tank Spud Ø 72 4 2 83 Ø 100 3 93 Ø 152 5 96 O ring 341 Ethylene Propylene 70 Durometer Standard O Ring 5 6 0 22 A 10 0 39 Ø 132 6 5 22 Figure 34 Sanitary seal with extended diaphragm Union Nut and Triclamp remote seal The Union Nut and Triclamp seals are designed for connection by Union Nut according to DIN...

Page 31: ...sanitary fittings A 4in V band clamp is optionally available for the 4in variant Size Dimensions mm in for S26S Cherry Burrell A dia B dia C dia D dia E F G H 2 in 67 2 64 56 2 2 42 1 65 57 2 24 3 2 0 13 6 5 0 26 12 5 0 49 3 0 12 3 in 98 4 3 87 81 3 19 72 42 2 85 83 8 3 3 2 4 0 09 7 9 0 31 15 0 59 3 0 12 4 in 124 4 88 111 25 4 38 72 42 2 85 109 3 4 3 2 4 0 09 7 9 0 31 15 0 59 3 0 12 Ø B Ø A H G E ...

Page 32: ... seal on 266HDH and 266NDH 3 A requirements All sanitary S26SS remote diaphragm seals and other associated direct mount sanitary diaphragm seals must be mounted in such a way as to allow for drainage of all process fluids Tank spud fittings must be mounted with the leak detection hole located at the bottom for proper drainage by gravity Sanitary applications must be performed so that all welding s...

Page 33: ...77 126 5 4 98 Ø A B Fitting connection Size Dimensions mm in for S26VN saddle type A dia B C dia R Saddle 2 in 55 2 17 48 1 89 40 1 57 30 Saddle 2 1 2 in 76 3 0 45 1 77 52 2 05 45 Saddle 3 in 76 3 0 45 1 77 50 1 97 45 Saddle 4 in 76 3 0 41 1 61 50 1 97 57 Saddle 5 in 76 3 0 40 1 57 50 1 97 70 Saddle 6 in 76 3 0 36 1 42 50 1 97 85 Fitting connection Size Dimensions mm in for S26VN socket type A dia...

Page 34: ...measuring the pressure of flowing fluids particularly those that are highly viscous or contain solids This particular diaphragm seal is available only on direct mount gauge and absolute pressure transmitters Figure 41 In line diaphragm seal Size Rating Dimensions mm in for S26JN D dia Mb dia 1 in DN 25 63 2 48 28 5 1 12 1 1 2 in DN 40 85 3 35 43 1 69 2 in DN 50 95 3 74 54 5 2 15 3 in DN 80 130 5 1...

Page 35: ... process connection can withstand a maximum working pressure of 345bar 5000psi The wetted parts are available in AISI 316L Hastelloy C276TM and Diaflex anti abrasion diaphragm treatment 16 0 63 18 0 71 18 0 71 18 0 71 26 1 02 16 0 63 18 0 71 18 0 71 18 0 71 113 4 45 29 1 14 145 5 71 113 4 45 29 1 14 145 5 71 65 2 56 1 in 11 5 NPT 66 2 6 39 1 54 1 1 2 in 11 5 NPT 41 1 61 width across flats of hexag...

Page 36: ...al connection allows easy instrument mounting on ball valves which are easy to install and repair They offer user the opportunity of avoiding complete plant shutdown This process connection can withstand a maximum working pressure of 40bar 580psi The wetted parts are available only in Hastelloy C276TM 1 1 2 in sealing connection to threaded spud M44 x1 5 Consider that this particular process conne...

Page 37: ...transmitter or if in case of pulp and paper cylindrical spud install the needed bolt s Figure 47 Welding sequence for spuds IMPORTANT Users should install spuds carefully Please follow the notes below Position inside gasket if any perfectly in order to avoid process leaks Improper installation may result in spud distortion Excessive heat will distort the spud Allow adequate cooling between welding...

Page 38: ...6 2 Closed Tank Installation Before connecting the seal element to the tank fitting determine whether a wet or dry compensating leg is required on the low side of the transmitter Refer to the Locating the Transmitter and Remote Seals section The transmitter is shipped with the vent drain plug located near the top of the low side flange In this position the valve permits venting of entrapped gas no...

Page 39: ...edge flow elements ABB s portfolio of device management Fieldbus and wireless solutions Scalable asset device management Asset vision software Mobility handhelds Customer support We provide a comprehensive after sales service via a Worldwide Service Organization Contact one of the following offices for details on your nearest Service and Repair Centre ABB S p A Via Luigi Vaccani 4 loc Ossuccio 220...

Page 40: ...atter and illustrations contained therein Any reproduction disclosure to third parties or utilization of its contents in whole or in parts is forbidden without prior written consent of ABB ABB 2018 All rights reserved 3KXP600000R4201 ABB Ltd Measurement Analytics Howard Road St Neots Cambridgeshire PE19 8EU UK Tel 44 0 1480 475321 Fax 44 0 1480 217948 ABB Inc Measurement Analytics 125 E County Lin...

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