Table of Contents
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A B B M E A S U R E M E N T & A N A LY T I C S | O P E R AT I N G I N S T R U C T I O N
S26 remote and direct mount seals
Diaphragm seals for 266 pressure transmitters
Introduction
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266DRH with direct
mount and remote
The 2600T family provides comprehensive range of
S26RA seals
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.
Engineered solutions for all
applications
Measurement made easy
For more information
Further publications for 2600T series pressure
products are available for free download from
www.abb.com/pressure
Table of Contents
Related Manuals for ABB S26 Series
Summary of Contents for ABB S26 Series
- Page 1 S26RA seals top quality pressure measurement products, products are available for free download from specifically designed to meet the widest range of www.abb.com/pressure applications ranging from arduous conditions in offshore oil and gas to the laboratory environment of the pharmaceutical industry.
- Page 2 We are an established world force in the design and manufacture of measurement products for industrial process control, flow measurement, gas and liquid analysis and environmental applications. As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support worldwide.
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Page 3: Table Of Contents
Index 1 Introduction ............4 5 Diaphragm seal models ........14 1.1 Instruction manual structure ........4 5.1 Wafer Remote Seal (S26WA and S26WE) ....14 1.2 Models covered by this manual ........4 5.2 Chemical Tee Remote Seal (S26CN) ......15 5.3 Rotating flange diaphragm seals (S26Rx) .... -
Page 4: Introduction
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. -
Page 5: Safety
2.5 Use of instruction For safety reasons, ABB draws your attention to the fact that only Danger –. This message sufficiently insulated tools conforming to DIN EN 60900 may be indicates that an imminent risk is present. -
Page 6: Operator Liability
Depressurize the pipeline/tank before opening the transmitter connection. All devices sent back to ABB must be free from any hazardous materials (acids, alkalis, solvents, etc.). Corrective maintenance work may only be performed by trained personnel. -
Page 7: Overview
— 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 connection to ANSI, JIS or EN pipe flanges, wedge flow elements, chemical tees, and threaded pipe fittings. Extended diaphragm remote seals are suitable for connection to 2-inch, 3-inch or 4-inch flanged tank nozzles or flanged tees permit the seal diaphragm to be located flush with the inside of a tank or pipe. -
Page 8: Model Codes
3.1 Model codes The S26 Series Seal Systems are available with a variety of remote seal constructions identified as follows: — S26FA and S26FE: Fixed-flange seals according to ASME and EN standards — S26RA, S26RE,S26RH and S26RJ: Rotating-flange seals according to ASME, EN, API and JIS standards —... -
Page 9: Installation
4 Installation 4.1 General 4.2 Flow measurement The transmitters with remote seals are suitable for use on the Differential pressure transmitters with two remote seals can be following pressure and differential pressure measurement used for both horizontal and vertical flow measurement applications: installations by mean of a Wedge Flow Element. -
Page 10: Liquid Level Measurement
4.3 Liquid level measurement 4.3.2 Closed Tank Installation – Pressure Service – Double Seal A differential pressure transmitter with either one or two remote seals can be used for liquid level measurement on open tanks, When a transmitter with two remote seals is used to measure closed tanks operating at pressures above atmospheric and level in a pressurized tank, the high pressure side seal element must be located near the bottom of the tank. - Page 11 4.3.3 Closed Tank Installation – Pressure Service – 4.3.4 Closed Tank Installation – Vacuum Service When the transmitter is used on a tank in which the operating Single Seal pressure range includes pressures below atmospheric, it is When a transmitter with one seal is used to measure level in a essential that the transmitter be located below the high- pressurized tank, a compensating leg must be connected pressure seal datum line.
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Page 12: Interface Level Measurement
4.3.5 Calibration Requirements The location of the high side seal near the bottom of the tank and the low seal near the top of the tank provides increasing transmitter output for increasing liquid level. The actual differential pressure applied to the transmitter is up to maximum value only when the process is at its minimum level due to the elevation difference between the seals. -
Page 13: Gauge Pressure Measurement
4.6 Gauge pressure measurement 4.7 Absolute pressure measurement A gauge pressure transmitter with a remote seal can be used An absolute pressure transmitter with a remote seal can be for measurement of pressure in either a process pipe or tank. used for measurement of absolute pressure in either a process Locate the remote seal in the side or top of the pipe to avoid pipe or tank. -
Page 14: Diaphragm Seal Models
5 Diaphragm seal models Connect the seal element as follows: 5.1 Wafer Remote Seal (S26WA and S26WE) The wafer remote seal is designed to be clamped between 1. Remove protective covering from seal. two ASME (S26WA) or EN raised face flanges (S26WE). The 2. -
Page 15: Chemical Tee Remote Seal (S26Cn)
4. Lightly tap the diaphragms with the flat part of your This kind of diaphragm seal has been designed to be fingernail. A dull thud is heard when fill is behind the connected to ABB Wedge primary element model WRC. diaphragm. For vacuum service recommendations, process temperature If there is air present, the sound will be “Tinny”. -
Page 16: Rotating Flange Diaphragm Seals (S26Rx)
5.3 Rotating flange diaphragm seals – flush and extended (S26RA, S26RE, S26RH and S26RJ) The extended and flush diaphragm remote seal is designed to connect to flanged pipe fitting, according to ASME B16.5 (S26RA), EN 1092-1 (S26RE), JIS B 2220 standards (S26RJ) or ISO 10423 (S26RH). For liquid level measurement installations the seal connects to a flanged tank nozzle, compliant to the relevant standard. - Page 17 Dimensions mm (in) for S26RA A (dia) Size/Rating extended flush diaphragm flushing ring B (dia) C (dia) D (dia) E (dia) N° of diaphragm std. low thick. internal dia (Note 1) holes 2 in. ASME CL 150 48 (1.9) 60 (2.36) 58 (2.28) 62 (2.44) 92 (3.62) 120.65 (4.75) 152.4 (6)
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Page 18: Rotating Flange Diaphragm Seal - Ring Joint (S26Rr)
5.4 Rotating flange diaphragm seal - Ring Joint (S26RR) The flanged flush diaphragm remote seal – ring joint is designed to connect to ASME flanged pipe fitting. On the 1 in. seal the process flange and nuts are supplied by the user. On the 1-1/2 in. and 2 in. seals the process flange, bolts and nuts are supplied by the user. -
Page 19: Fixed Flange Diaphragm Seals - (S26Fa, S26Fe)
5.5 Fixed flange diaphragm seals – flush and extended (S26FA, S26FE) These diaphragm seal are designed to connect to flanged pipe fitting, according to ASME or EN standards. For liquid level measurement installations, the seal connects to a flanged tank nozzle, compliant to relevant standard. The sealing is provided by a selectable gasket seat surface finish. - Page 20 Dimensions mm (in) for S26FE Form E Size/Rating diaphragm A (dia) N° of B (dia) C (dia) D (dia) E (dia) std. thickness low thickness (Note 2) holes DN 50 EN PN 16 60 (2.36) 58 (2.28) 87 (3.42) 125 (4.92) 165 (6.5) 18 (0.71) 13.5 (0.53)
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Page 21: Off-Line Threaded Connection Seal (S26Tt)
5.6 Off-line Threaded Connection Seal (S26TT) The off-line threaded remote seal connects directly to a process pipe via the NPT connection in the lower housing. Connections for 1/4, 1/2, 3/4, 1, and 1-1/2 in. process piping are available. In addition to the process connection, mechanical support for the weight of the seal may be required, especially for the 1/4 and 1/2-inch pipe sizes. -
Page 22: Off-Line Flanged Connection Remote Seal (S26Mx)
5.7 Off-Line Flanged Connection Remote Seal (S26MA, S26ME) Available with ASME (S26MA) and EN (S26ME) flanged process connection, the Off-line model matches small process connections. Recommended for clean process fluid measurements. These elements are available with a flushing connection in the lower housing, selectable on request. Ø110 (4.33) FLUSHING CONNECTIONS (two 1/4 in. -
Page 23: Remote Seal For Urea Service (S26Pn)
5.8 Remote Seal for Urea Service (S26PN) This specialized remote seal is manufactured from materials which match the aggressively corrosive conditions when Urea is present in the process. The urea grade wetted materials ensure stable performances even in high temperature / high vacuum conditions. Ø... -
Page 24: Button Type Remote Seal (S26Bn)
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). - Page 25 28.58 (1-1/8) 60.33 (2-3/8) 30.16 (1-3/16) Thick Gasket 2.3 (3/32) Ø 24 (15/16) Ø 23 (59/64) 13.49 (17/32) 47.6 (1-7/8) 6.35 (1/4) 95.25 (3-3/4) 125.41 (4-15/16) Figure 26: Bracket – type 89 2.3 (3/32) Thick Gasket Ø 23 (59/64) Ø 24 (15/16) 52 (2-1/16) 13 (17/32) 78 (3-1/16)
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Page 26: Union Connection Remote Seals (S26Un)
5.10 Union Connection remote seals (S26UN) The union connection remote seals are used exclusively for pressure measurement. The seal is available without a weld bushing, with an optional weld bushing, or with an optional chemical tee flange. An O-ring is used to seal the process connection. The O-ring material can be silicone rubber for temperatures up to 177°C (350°F) or PTFE for temperatures up to 204°C (400°F). - Page 27 Seal with Chemical Tee flange The union connection seal with a chemical tee flange is designed to connect to any process fitting which accepts a chemical tee seal element (refer to Chemical Tee Seal for more information). The union seal connects to the chemical tee flange which serves as an adapter to permit connection of the union seal to a chemical tee type fitting.
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Page 28: Food And Sanitary Seal (S26Ss)
Sanitary diaphragm seals have been specifically developed for food, sanitary, chemical and pharmaceutical applications, complying with the stringent 3-A requirements. Available with different process fittings (Triclamp, Cherry Burrell, Union Nut and Sanitary), this model highlights ABB’s commitment to satisfy users needs approaching even the most demanding processes successfully. - Page 29 Ø 119 (4.68) Ø 105 (4.13) Ø 85.5 (3.36) Ø 79.6 (3.13) Ø 62 (2.44) Figure 32: 4 in. Aseptic flanged connection Sanitary Seal with flush diaphragm The sanitary remote seal with flush diaphragm is designed to connect to a 4-inch sanitary tank spud. The tank spud and process O-ring, made of Buna or Viton, are available with the seal.
- Page 30 Sanitary seal with extended diaphragm The sanitary remote seal with extended diaphragm is designed to connect to a 4-inch sanitary tank spud with an extended neck (2, 4 or 6 inches). The tank spud, an Ethylene Propylene process O-ring and V-Band clamp ring are available with the seal. Connect the seal as follows: 1.
- Page 31 Dimensions mm (in) for S26SS Triclamp A (dia) B (dia) Size Ø A 2 in. 56.3 (2.2) 64 (2.5) Ø B 3 in. 83 (3.26) 91 (3.58) 4 in. 110.3 (4.34) 119 (4.68) Figure 36: Triclamp sanitary seal Cherry Burrell seal The Cherry Burrell seals are designed for connection to 2in, 3in or 4in Cherry Burrell I-Line sanitary fittings.
- Page 32 Beverage bolted seal This seal has been designed to be suited for specific applications in beverage processes. The sanitary bolted seal is available only for gauge and absolute transmitters with direct-mount seal construction. Spud process fitting is available on request. Note.
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Page 33: Saddle And Socket Diaphragm Seal (S26Vn)
5.12 Saddle and Socket diaphragm seal (S26VN) The saddle and socket seal are the best solution when the diaphragm needs to be as closest as possible to the process media. These are typically installed by welding to the process pipes with fluid at high viscosity. Saddle and socket process connection fittings are available as option selection, available only in AISI 316 L ss. -
Page 34: In-Line Diaphragm Seal (S26Jn)
5.13 In-line diaphragm seal (S26JN) In line seals are suitable for measuring the pressure of fluids in pipes. The pressure measuring diaphragm forms the pipe wall making this type of seal suitable for measuring the pressure of flowing fluids particularly those that are highly viscous or contain solids. -
Page 35: Pulp And Paper Diaphragm Seals (S26Kn)
5.14 Pulp and Paper diaphragm seals (S26KN) Models 266HDH, 266NDH, 266GDH and 266ADH integrate a direct mount seal on the positive side, having the negative side reference at atmospheric or vacuum pressure, respectively for gauge or absolute measurements. The integral seal is available in 1in and 1-1/2in diaphragm sizes specifically designed for pulp & paper industry applications, providing a flush diaphragm to the process;... - Page 36 1 in. and 1-1/2 in. size to spud with 1 or 2 screw(s) fixing Consider that this kind of pulp and paper sealing with gasket seal can withstand a maximum working pressure of: — 30bar (435psi) in case of 1 screw fixing —...
- Page 37 5.15 Welding procedure for sanitary and Pulp&Paper 5.16 Sanitary spuds (3-A recommendations) spuds Use of proper procedures and fixtures permits the flanges to be welded to the maximum wall thickness. 1. Using appropriate size hole saw, cut a hole in the process vessel to accept the spud.
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Page 38: Connecting Low Side Compensation Leg
6 Connecting low side compensation leg on a DP transmitter with one seal. Differential pressure transmitters with a single remote seal element are used for liquid level installations. The seal element is connected using the procedure applicable to the type of seal element. - Page 39 − IEC 61508 SIL2/3 certified temperature sensors and 3450 Harvester Road transmitters Burlington, Ontario L7N 3W5 – Canada ABB’s portfolio of recorders and controllers: Tel: +1 905 6810565 Fax: +1 905 6812810 − Process controllers and indicators − Videographic recorders ABB India Limited −...
- Page 40 We reserve the right to make technical changes or modify the contents of this document without prior notice. With regard to purchase orders, the agreed particulars shall prevail. ABB does not accept any responsibility whatsoever for potential errors or possible lack of information in this document.