NEW! For Produts For Produts
Diaphragm Seals Produt Overview Introdution Diaphragm Seals (or Chemial Seals) use a flexible barrier, or diaphragm, to isolate a pressure sensor (swith or transduer) from adverse effets of the proess fluid. Diaphragm seals are useful to: s s s s s s HOW IT WORKS Protet the sensor from the proess media (orrosive, abrasive, visous, rystallizing media, or high proess temperature) Protet the proess from the ontaminants (sanitary proess requiring lean-out, or high purity media). A diaphragm seal, when properly mounted to a sensor and filled, will aurately transmit proess pressure to the instrument. The pressure applied by the proess media is hydraulially transmitted from the flexible diaphragm, through the fill fluid between the diaphragm and the instrument, to the pressure element, thus engaging the swith or transduer. TARGET MARKETS & APPLICATIONS Oil, gas & petrohemial refining Food & beverage proessing Waste water failities Pharmaeutial s s s s Chemial Sanitary/High Purity appliations Power generation Automotive/Paint s Pulp & paper 2
Diaphragm Seals Produt Overview Appliation Considerations The following should be onsidered when hoosing a diaphragm seal: NOTE s s s s s Proess Charateristis:, temperature, hemial ompatibility, and visosity. Seal Mounting: Connetion to proess (threaded, flanged, lamped, or remote) and onnetion to instrument (usually NPT). Ambient Charateristis: Temperature, orrosive atmosphere, et. Instrument Considerations: Suffiient fluid displaement is required to drive instrument through its full range. This means, for example, you an t put an instrument with a large displaement on a seal with a small displaement. Remote instrument plaement requires a apillary onneting instrument to seal. Vauum Considerations: High vauums (over 25 Hg) or vauums with high temperatures require speial fill seletion, preparation, and proedures, as well as areful diaphragm seletion. Improper seal seletion may result in inreased system error, system failure, and possible damage or injury. Barksdale an provide appliation assistane, but final ompatibility is the responsibility of the buyer. SEAL TYPES Threaded Off-line Seals: Threaded off-line and flanged off-line seals are ommonly used in a variety of appliations. These have a standard leanout feature, allowing removal of the proess flange or lower housing without losing the fill. Mounted on a nipple off the line or using a standard ANSI flange. Flush Fae Seals: Designed for low displaement appliations where a build-up of solids aross the diaphragm is a onern. Threaded proess onnetion. Sanitary Seals: Designed for food, pharmaeutial and other sanitary appliations. Available to fit most standard piping systems with Tri-lamp onnetion. Standard fill is food grade glyerin. Mini-Seals: Designed for low displaement appliations where size or eonomy are the primary onsiderations. Speial Designs: Barksdale is ready to work with you on any high-performane diaphragm seal appliation, (that might exeed the stated limits) suh as high vauum, high temperature, high sterility, ustom design, high stati pressure with a low differential span, or high vauum with high temperature. HOW TO ORDER Follow the Barksdale swith, transduer or solid state part number with a slash (/) and then the diaphragm seal part number. Examples: D1H-H18SS/TS5 E1H-H250-BR/FF1 UDS7-05-N-3/SS1 425X-03/MS6 3
Diaphragm Seals Appliable Mehanial Swith Produts The following Barksdale pressure swithes are approved for use with diaphragm seals. Barksdale s eletro-mehanial swithes use a sensor suh as a diaphragm, dia-seal piston, or bourdon tube whih atuates an eletro-mehanial limit swith that opens or loses a iruit. Mehanial swithes do not require any power input to operate, and thus make exellent fail-safe devies. Dia-Seal Piston Dia-Seal Piston Explosion Proof Dia-Seal Piston Bourdon Tube Tube Explosion Proof Bourdon Tube B1T / B2T B1X / B2X E1H P1H P1X Diaphragm Diaphragm Swithes Explosion Proof Diaphragm Swith Differential Differential Swithes CDPD1H / CDPD2H DPD1T / DPD2T D1H / D2H D1T / D2T D1X / D2X CD1H / CD2H Compat Explosion Proof Compat Swith 9671X / 9681X 4 NOTE Adding a diaphragm seal to Barksdale s pressure instruments will affet some of the produt s performane and auray - the degree of variability depends on the environmental, installation, servie, and/or measurement methods and onditions. The end user should determine the final overall produt suitability and aeptability in the speifi appliation.
Diaphragm Seals Appliable Eletroni Produts The following Barksdale transduer and solid state produts are approved for use with diaphragm seals. Barksdale s eletroni swithes use a piezo-resistive pressure sensing tehnology that transmits a voltage or urrent signal proportional to the system pressure or vauum. These swithes provide added funtionality to any system they are used in. Solid States Solid State Produts Eletroni Swithes SW2000 UDS7 UDS3 Transduers General Industrial Transduers Explosion Proof Transduers 423 / 425 / 426 423N1 / 425N1 / 426N1 423X / 425X / 426X 433 / 435 / 436 443 / 445 / 446 NOTE Adding a diaphragm seal to Barksdale s pressure instruments will affet some of the produt s performane and auray - the degree of variability depends on the environmental, installation, servie, and/or measurement methods and onditions. The end user should determine the final overall produt suitability and aeptability in the speifi appliation. 5
Threaded Off-Line Diaphragm Seals Series TS & TC Threaded Off Line Diaphragm Seals are a popular hoie for most appliations. The flush port is reommended for appliations where there may be a build up of solids and requires a simple means of leaning. These seals are available in all stainless steel onstrution, as well as a arbon steel upper flange for a more eonomial hoie. Instrument D C E Upper Flange (not wetted) Diaphragm (wetted) Flush Port, 1/4" NPT (optional).5 B F Lower Flange (wetted) Diaphragm Size B C D Instrument Connetion E (NPTF) Proess Connetion F (NPTF) 5 3.5 max 1.8 max 3.0 max 1/4 1/4, 1/2 6 4-1/8 max 1.9 max 3.1 max 1/4 1/4, 1/2 Materials Lower housings: Diaphragms: Gaskets: 316SS standard. Other materials available for ustom appliations. Standard metal diaphragms are onvoluted and made of 316SS. Other materials (suh as Teflon or tantalum) are available for orrosion resistane or extra sensitivity. Standard Teflon gaskets are on the proess side of diaphragm (grafoil for high temperature.) Other materials are available. 4 Bolts hold flanges together (Extra bolting for high pressure available.) Diaphragm Gasket (or weld) - seals diaphragm to upper housing INSTRUMENT FLANGE (or Upper Housing) INSTRUMENT CONNECTION Continuous dutyhelps ontain proess if instrument is removed. Fill/Bleed port Cleanout feature - allows removal of proess flange without losing instrument fill PROCESS FLANGE (or Lower Housing) wetted part PROCESS GASKET seals lower housing (wetted) DIAPHRAGM Flexible barrier (wetted part) PROCESS CONNECTION Optional Flushing Connetion (or Flush Port) - this option allows flushing or bleeding of area below diaphragm 6
Threaded Off-Line Diaphragm Seals Series TS & TC Seal Speifiations 316 SS lower housing Welded 316 SS diaphragm Diaphragm Size Upper Housing Material 9 Proess Connetion (NPTF) 8 Flush Port Configuration 6 Part # 5 (2-1/4" [ diaphragm) 6 (3" [ diaphragm) 5 (2-1/4" [ diaphragm) 6 (3" [ diaphragm) Reommended Control Devie 7 : Temperature Limits (for referene) Maximum Temperature Diaphragm Material Lower Housing 650 F Welded metal 10 Metal 450 F Teflon option 10 Metal 300 F Viton option 10 Metal 140 F - Nonmetal 1/4 NPTF instrument onnetion DC 200 silione fill fluid (-50 to 450 F operating range) Carbon Steel 316 S.S. 1 Seals not reommended for transduers and solid state devies with ranges lower than 15 psi. Use higher pressure ranges, or absolute ranges. 2 The maximum working pressure is the lower of the maximum seal working pressure and the maximum adjustable range of the swith. 3 Diaphragm differential pressure swithes will require two seals and two apillaries for remote mounting. Consult Fatory. 4 Do not use diaphragm swithes in the -2SS pressure range. 5 Use the size 6 swith with diaphragm swithes. 6 Cleanout style onfiguration: the lower housing an be removed without losing the fill. 7 Reommend seleting brass or stainless steel proess fittings only for pressure 1/4 1/2 Flanged (speify pipe size and rating) 1/4 1/2 Flanged (speify pipe size and rating) 1/4 1/2 Flanged (speify pipe size and rating) 1/4 1/2 Flanged (speify pipe size and rating) Maximum Working 9 Minimum Working Vauum Limits psi Transduer series 1 : 423/425/426, 423N1/425N1/426N1, 423X/425X/426X, 433/435/436, 443/445/446 Solid State 1 : SW2000, UDS7, UDS3 Bourdon Tube: B1T/B2T, B1X/B2X Diaphragm Swithes 3,4,5 : D1H/D2H, D1T/D2T, D1X/D2X, CD1H/CD2H, DPD1T/DPD2T, CDPD1H/CDPD2H Dia-Seal Piston: E1H, P1H, P1X Compat Explosion Proof: 9681X Limits 2 (for referene) Lower Housing 1,500 metal, with ss bolting (at 100 F) 2,500 metal, std bolting (at 100 F) 5,000 metal, hi-press bolting (at 100 F) per flange rating ASA flange (per flange spe) 300 non-metalli (at 140 F) Diaphragm Size 5 Seal Size 6 Seal Metal 10 25 psi 10 psi Teflon option 10 20 psi 5 psi Viton option 10 3 psi n/a TC1 TC2 TC3 TC4 TC5 TC6 TC7 TC8 TS1 TS2 TS3 TS4 TS5 TS6 TS7 TS8 Metal 10-21 Hg -24 Hg Teflon option 10-23 Hg -26 Hg Viton option 10-29 Hg n/a swith or transduer. 8 3/4 NPTF and 1 NPTF also available. Consult fatory. 9 Standard steel bolting is rated at 2500 psi maximum pressure. 10 Seals have standard 316 SS diaphragm. and temperature limits for metal diaphragms apply. Other metals suh as hastelloy, tantalum, as well as viton and Teflon diaphragms are available for ustomized appliations. Please onsult fatory. 7
Flush Fae Diaphragm Seals Series FF Flush Fae Diaphragm Seals are useful in appliations where a ontinuous flow of proess media aross the diaphragm is required to prevent solids buildup. Instrument D C Instrument Connetion 1/4 NPTF F B Alternate view F Proess Connetion B C D Max. @ 100 F 2 Min. Range (Mehanial) Min. Range (Eletrial) 1/2 NPT 1.1 max 1.4 max 2.6 max 5000 psi 100 psi 100 psi 3/4 NPT 2.1 max 2.5 max 3.7 max 2500 psi 100 psi 15 psi 1 NPT 2.1 max 2.7 max 3.9 max 1500 psi 100 psi 30 psi Seal Speifiations All 316 SS onstrution Welded 316 SS diaphragm DC200 silione fill fluid 1/4 NPT instrument onnetion Diaphragm Size Proess Connetion (NPTM) Part # 1 FF1 Same as Proess Connetion 1/2 FF2 4 3/4 FF3 Reommended Control Devie 7 : Transduer series 1 : 423/425/426, 423N1/425N1/426N1, 423X/425X/426X, 433/435/436, 443/445/446 Solid State 1 : SW2000, UDS7, UDS3 Bourdon Tube: B1T/B2T, B1X/B2X Dia-Seal Piston: E1H 3, P1H 5, P1X (Reommend 1.5 onnetion / Consult fatory) Compat Explosion Proof: 9681X 6 1 Seals not reommended for transduers and solid state devies with ranges lower than 15 psi. Use higher pressure ranges, or absolute ranges. 2 The maximum working pressure is the lower of the maximum seal working pressure and the maximum adjustable range of the swith. 3 Do not use E1H pressure range 15 with flush fae seal. 4 FF2 only reommended for high pressure appliations. 5 Use only FF1 seal with P1H / P1X pressure range 30. 6 Do not use 9681X with FF2 seal. 7 Reommend seleting brass or stainless steel proess fittings only for pressure swith or transduer. 8
Sanitary Diaphragm Seals Sanitary Diaphragm Seals are speially designed to meet the demanding sanitary requirements of food, dairy, beverage, pharmaeutial, and bioteh appliations. Series SS Instrument D C 1/4" NPT 1200 B Proess Connetion B C D Max. @ 100 F 2, 5 Min. Range Size 1-1/2 2.0 max 1.2 max 2.4 max 600 psi 60 psi Size 2 2.5 max 1.3 max 2.5 max 600 psi 60 psi Seal Speifiations All 316 SS welded diaphragm onstrution Certified for 3A sanitary standards Food grade glyerin fill Weld mount ontrol devie to seal 1/4 NPT instrument onnetion Reommended Control Devie 6 : Proess Connetion Part # 1 1/2 Tri-lamp SS1 2 Tri-lamp SS2 3/4 Tri-lamp Transduer series 1 : 423/425/426, 423N1/425N1/426N1, 423X/425X/426X, 433/435/436, 443/445/446 Solid State 1 : SW2000, UDS7, UDS3 Bourdon Tube: B1T/B2T, B1X/B2X Dia-Seal Piston: E1H 3, P1H 4, P1X Compat Explosion Proof: 9681X 1 Seals not reommended for transduers and solid state devies with ranges lower than 15 psi. Use higher pressure ranges, or absolute ranges. 2 The maximum working pressure is the lower of the maximum seal working pressure and the maximum adjustable range of the swith. 3 Do not use E1H pressure range 15 with seal SS1. 4 Do not use P1H / P1X pressure range 30 with seal SS1. 5 1000 psi maximum pressure with ustomer supplied heavy duty lamp. Not to exeed the instrument pressure rating. 6 Reommend seleting brass or stainless steel proess fittings only for pressure swith or transduer. 9
Mini Diaphragm Seals Series MS Mini-Seals are all-welded, gasketless, threaded off-line seals. The mini-seal is an eonomial hoie for isolation of smaller instruments, or where high sensitivity is not required. Pitured Without Flush Port on Seal Instrument D C A B Seal Size A B C D Max. @ 100 F 2 Min. Range 4G 1.73 max 1.5 max 1.5 max 2.7 max 2000 psi 100 psi 6G 2.25 max 1.95 max 1.6 max 2.8 max 1000 psi 15 psi Alternate view Seal Speifiations All welded, gasketless, 316 SS onstrution 1/4 NPT instrument onnetion DC200 silione fill fluid Seal Size Proess Connetion (NPTF) Flush Port Configuration Part # 4G 6G Reommended Control Devie 4 : 1/4 1/2 1/4 1/2 Transduer series 1 : 423/425/426, 423N1/425N1/426N1, 423X/425X/426X, 433/435/436, 443/445/446 Solid State 1 : SW2000, UDS7, UDS3 Compat Explosion Proof: 9681X 3 MS1 MS2 MS3 MS4 MS5 MS6 MS7 MS8 1 Seals not reommended for transduers and solid state devies with ranges lower than 15 psi. Use higher pressure ranges, or absolute ranges. 2 The maximum working pressure is the lower of the maximum seal working pressure and the maximum adjustable range of the swith. 3 Do not use 9681X pressure range 1 with MS1, MS2, MS3, MS4 seals. 4 Reommend seleting brass or stainless steel proess fittings for pressure swith or transduer. 10
Diaphragm Seals Appliation Worksheet 1. SEAL INFORMATION: Desription (or Model) of Seal Requested: Proess Connetion: Threaded: 1/4 NPT 1/2 NPT Flanged: inhes lbs. Sanitary Tri-lamp onnetion: 1-1/2 2 3/4 Capillary (remote mount): feet Other For Offie Use Only Quotation #: Order #: Fill Fluid: Standard DC 200 silione (-50 F to 450 F) Food grade glyerin 30 F to 300 F High temperature (>450 F) Seal Materials: Upper Lower Diaphragm 2. PROCESS INFORMATION: Proess (psi) Maximum Working Minimum Setpoint Proess Temperature ( F) N/A Proess Fluid: Proess Pulsation: Yes No If yes, speify Vibration: Yes No If yes, speify 3. SENSOR INFORMATION: Swith Transduer Solid State Barksdale part number or family: Adjustable pressure range: Other: 4. AMBIENT CONDITIONS: Temperature Range: High Low Chek where appliable: Indoor Sunny Wet Corrosive Outdoor Shaded Dry NOTE Adding a diaphragm seal to Barksdale s pressure instruments will affet some of the produt s performane and auray - the degree of variability depends on the environmental, installation, servie, and/or measurement methods and onditions. The end user should determine the final overall produt suitability and aeptability in the speifi appliation. 5. APPLICATION DESCRIPTION: 6. OTHER INFORMATION, SPECIAL NEEDS, AND NOTES: **NOTE: Barksdale In. is glad to provide appliations assistane, based on limited information, but final ompatibility is the responsibility of the buyer. Barksdale, In. 3211 Fruitland Avenue, Los Angeles, CA 90058 TEL: (323) 589-6181, FAX: (323) 583-6209 e-mail: dhirani@barksdale.om, www.barksdale.om 11
Contat: Deenar Hirani DHirani@barksdale.om Global Presene Global Presene Barksdale In. 3211 Fruitland Ave. Los Angeles, CA 90058-0843 U.S.A. Phone: (866) 832-6278 Fax: (323) 583-6209 Email: sales@barksdale.om www.barksdale.om Barksdale GmbH Dorn-Assenheimer Strasse 27 61203 Reihelsheim, Germany Phone: +49 6035-949-0 (main offie) +49 6035-949-204 (sales) Fax: +49 6035-949-111/-113 Email: info@barksdale.de www.barksdale.de Barksdale China 33F Huaihai Plaza 1045 Central Huaihai Road Shanghai 200031, P.R. China Phone: +86 21 6127-3000 Fax: +86 21 6473-3298 Email: ChinaSales@barksdale.om www.barksdalechina.om Barksdale, In. Los Angeles, CA 90058 Speifiations are subjet to modifiation at any time Bulletin #S0094-C 08/08 2008 Printed in the U.S.A