S1146-B-WELL-MECH. SEALS-14pp - M Barnwell Services Ltd

S1146-B-WELL-MECH. SEALS-14pp 22/6/07 11:10 Page 4A Barnwell guide toMechanical SealsThe Mechanical Seal- one of the most effective ways ofsealing rotating shafts, consisting of twolapped faces arranged perpendicular tothe axis of the rotatingshaft (which gives rise to the alternativename “radial face seal”).One face is fixed to the equipmentcasing or vessel, while the other is fixedto the shaft and so rotates with it.Frictional heat generation and wear iscontrolled by maintaining a film oflubricant between the seal faces.As such, mechanical seals resemblethrust bearings.Mechanical Seals have replaced packings asthe seal of choice in many applications,primarily because mechanical seals offer:• Reduced wear• Reduced heat generation• Lower energy consumption• Reduced maintenance requirement• Tighter control of shaft leakage• True reduction of costsMechanical Seals are precision devices,requiring in general more careful installationand higher initial investmentthan those of soft packings.Barnwell is a UK AuthorisedDistributor of VulcanEngineering Limited, one ofthe world’s leadingmanufacturers of qualityMechanical Seals. As such,we have access to one of the widest range ofstandard mechanical seals available.The following pages illustrate some of the mostpopular Mechanical Seals for pumpapplications. However, this is only an indicationof the actual range available. Whatever yourrequirement, we can source and deliver the sealthat you need - fast!Water Pump Type SealsTYPE 18Compact, enclosed rubber bellows seal with a wide stationaryseat. Very short working length makes the Type 18 ideal forequipment where space for a seal is restricted. Seal is suppliedwith a top hat retainer (remove upon installation).Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten Carbide Stat Ring : Ceramic, Silicon Carbide,Tungsten Carbide N.B. Sic or T.C. stocked in certain common sizes only. Other face materials to orderShaft Sizes : Available in standard shaft sizes 8mm to 70mmTYPE 60Sleeve mounted, rubber bellows seal with shaft drive ring.Mass produced and easily fitted for low pressure, generalapplications on small diameter shafts.Standard Stock Face Materials : Rotary Face : Carbon Stat Ring : Ceramic (Silicon Carbide, Tungsten Carbide also available)Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.375” to 1.000”TYPE 70Coolant pump seal primarily utilised in combustion enginewater pumps.The clearance of the seal and seat above the shaft allows onesize to be used on several shaft diameters.Standard Stock Face Materials : Rotary Face : Carbon Stat Ring : Ceramic (Silicon Carbide, Tungsten Carbide also available)Other face materials to orderShaft Sizes : Available in standard shaft sizes 13mm, 17mm, 20mm and 30mmTYPE 65Sleeve mounted, rubber bellows seal, with dimensions toequate to the common American seal standard. Mass producedand easily fitted for low pressure, general applications on smallshaft diameters.Mechanical Seals to suit common Food and Dairy Industry PumpsShaft SizesAvailable in standard shaft sizes 40mm, 53mm and 60mmShaft Sizes : Available in standard shaft sizes 1.000mm and 1.500mmSingle seal arrangement andstandard dimensionsDouble seal arrangement andstandard dimensionsTYPE 19C Seals to suit Alfa Laval EquipmentSeals to suit the Alfa Laval ALC ® and other pump andequipment ranges.Barnwell supplies a special Type 19 seal to suit the Alfa LavalALC ® series pumps, from the 1.5kW to 22kW motor sizes.Readily available with Silicon Carbide vs Carbon seat and in allcommon elastomers. Barnwell also offers a range of seals tofully replace all components used in the Alfa Laval Contherm ®Dryer Seal System as commonly used in the food industry.TYPE 26 Seals to suit APV Puma ® PumpsBarnwell now stocks a full range of seals to suit the APVPuma ® pump range which are commonly utilized in the dairyand beverage industries. Commonly used on the 1.000” and1.500” shaft Puma pumps, every seal, seat and gasketcomponent used on this range of pumps is now readilyavailable.TYPE 16 Seals to suit APV W ®and APV W+ ® PumpsThe APV W ® pumps have been introduced as a standardreplacement to the APV Puma ® pumps. Barnwell has acomplete range of mechanical seals available designed to suitboth pump types in single and double configuration. These areavailable in both 25mm and 35mm shaft sizes in variousstandard and hard face material combinations.Standard Stock Face Materials : Rotary Face : Carbon Stat Ring : Ceramic (Silicon Carbide, Tungsten Carbide also available)Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.375” to 1.000”02TYPE 75Coolant pump seal primarily utilised in combustion enginewater pumps, with dimensions to equate to the commonAmerican seal standard.Standard Stock Face Materials : Rotary Face : Carbon Stat Ring : Ceramic (Silicon Carbide, Tungsten Carbide also available)Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.500”, 0.625” and 0.750”APV W+ Seal Face KitsShaft Sizes : Available in standard shaft sizes 25mm and 35mmTYPE 29 Series Seals to suit APV ® Pumps11Barnwell now stocks a range of mechanical seals designedspecifically to replace all common APV ® pump seals. The Type29 is suitable for APV ® , ZMA, ZMD, ZMS, ZMH and ZMKRosista ® Pasilac ® pumps. These seals are available with eithercarbon rotary face vs stainless steel seat as standard or withsilicon carbide faces in all standard elastomers. These seals areavailable in 20mm, 25mm and 30mm shaft sizes.Shaft Sizes : Available in standard shaft sizes 20mm, 25mm and 35mm12

S1146-B-WELL-MECH. SEALS-14pp 22/6/07 11:10 Page 7TYPE 12Standard Stock Face Materials : Rotary Face : Stainless Steel, Silicon CarbideOther face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 100mmA range of highly proficient, widely utilised, ‘O’Ring mounted,conical spring seals with solid, stainless steel head and carbonseat. To suit standard housings. Suitable for a wide variety ofduties.TYPE 13Stat Ring : Carbon, Silicon Carbide‘O’Ring mounted, conical spring seal with pressed stainlesssteel head retainer and pressed carbon seat. Highlyproductionised seal capable of wide ranging service. Seal andseat faces can be inter-changed with each other and can beeasily replaced.TYPE 19 / 192 / 193Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 100mmA robust rubber bellows seal, with a wide non-DIN crosssection, for optimum flexibility and durability. Available with anon-DIN seat (as shown) or a wide range of ‘O’Ring or BootMounted DIN seats. Types 192 and 193 have an extendedbellows to meet DIN L1K and L1N working lengths, when fittedwith a Type 8 DIN Short ‘O’Ring or 19B bootmounted Seat.TYPE 1520 MetricStat Ring : Ceramic, Silicon Carbide,Metric DIN profile seal and a standard seat with working lengthto suit a common International standard. Seal has sameworking length and the same seat as Type 20, but can provideimproved seal performance, life and capability.Standard Stock Face Materials : Rotary Face : Ceramic, Silicon Carbide, Tungsten Carbide, CarbonStat Ring : Carbon, Silicon Carbide, Tungsten Carbide, Ceramic Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 40mmStandard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 100mmStat Ring : Ceramic, Silicon Carbide,TYPE 13 DIN‘O’Ring mounted, with pressed seal head and seat, plus conicalspring, designed to fit DIN 24960 (EN12756) housings.Cost-effective seal suitable for many duties with the option toreplace wear faces and ‘O’Rings during over-hauls.TYPE 1520 ImperialImperial DIN profile seal and a standard seat with workinglength to suit a common International standard. Seal has sameworking length and the same seat as Type 20, but can provideimproved seal capability, performance and life.Standard Stock Face Materials : Rotary Face : Ceramic, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 40mmStat Ring : Carbon, Silicon Carbide,Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 0.375” to 4.000”Stat Ring : Ceramic, Silicon Carbide,Elastomeric Bellows Type SealsTYPE 14 / 142 / 143Universal compact DIN seal and seat with a choice of standardDIN working lengths. The robust, heavy duty bellows designprovides excellent flexibility and durability. The seal is suppliedas standard with the Type 19B seat. Alternatively, specify Type14S, 142S or 143S for this seal to be supplied with a type 8 DINShort Seat.TYPE 1511 / 1522Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 0.500” to 3.000”DIN profile seal and a standard seat, with a choice of workinglength to suit common American standards. Seal has sameworking length and the same seat as Type 11 or Type 22, butcan provide improved sealing performance.Stat Ring : Ceramic, Silicon Carbide,Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 100mmStat Ring : Ceramic, Silicon Carbide,TYPE 1724High performance, wide duty, full convolution rubber bellowsseal inside a stainless steel housing. Type 1724 features a noncloggingspring and self alignment capability, and is offeredwith a choice of Type 24 boot mounted or ‘O’Ring Short or LongDIN seats.Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Size : Available in standard shaft sizes 14mm to 100mmStat Ring : Ceramic, Silicon Carbide,04 05

S1146-B-WELL-MECH. SEALS-14pp 22/6/07 11:10 Page 9Parallel Spring Diaphragm Type SealsBalanced Diaphragm Type SealsTYPE 10 / 20 MetricMetric shaft size resilient, single spring, rubber diaphragm sealwith boot mounted seat as standard. A widely specified andutilised seal type, capable of long service life.TYPE A1Robust, long working length, highly accommodating andreliable, rubber diaphragm balanced seal, which providesenhanced seal capability, performance and life. Improveddesign features further enhance this popular seal. Suitable forcommon UK and Euro housing dimensions.Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes 10mm to 100mmStat Ring : Ceramic, Silicon Carbide,Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten Carbide Stat Ring : Ceramic, Silicon Carbide,Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.500” to 3.000” Metric : 12mm to 75mmTYPE 10 / 20 ImperialImperial shaft size rubber diaphragm seal with parallel singlespring and boot mounted seat as standard. The most common,imperial shaft, single spring design, suitable for use in manyapplications.TYPE A2Robust, short working length, highly accommodating andreliable, rubber diaphragm balanced seal which providesenhanced seal capability, performance and life. Improveddesign features further enhance this popular seal. Suitable forcommon UK and Euro housing and working length dimensions.Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.375” to 4.000”Stat Ring : Ceramic, Silicon Carbide,Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten Carbide Stat Ring : Ceramic, Silicon Carbide,Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.500” to 3.000” Metric : 12.13mm to 75mmTYPE 11 / 22Single spring, rubber diaphragm seal, designed for differentsized seat housings and seal working lengths to the Types10/20. The imperial sizes are most commonly found onAmerican equipment.TYPE A3 / A4Robust, short working length highly accommodating and reliablerubber diaphragm balanced seal, which provides enhanced sealcapability, performance and life. Improved design featuresfurther enhance this popular seal. Suitable for common USstandard housing and working length dimensions.Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten Carbide Stat Ring : Ceramic, Silicon Carbide,Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.500” to 3.000” Metric : 12mm to 75mmStandard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten Carbide Stat Ring : Ceramic, Silicon Carbide,Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.500” to 3.000” Metric : 12mm to 75mmTYPE 24Compact single spring, rubber diaphragm seal specificallydesigned to comply with DIN 24960 (EN12756) housings.Shown with boot mounted seat, but is also often specified witha Type 24 ‘O’Ring mounted DIN Long or Short seat (Types 24Lor 24S respectively)TYPE A5Robust, long working length highly accommodating andreliable rubber diaphragm balanced seal, which providesenhanced seal capability, performance and life. Improveddesign features further enhance this popular seal. Suitable forcommon US standard housing and working length dimensions.Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes 12mm to 100mmStat Ring : Ceramic, Silicon Carbide,Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten Carbide Stat Ring : Ceramic, Silicon Carbide,Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.500” to 3.000” Metric : 12mm to 75mm06 07

S1146-B-WELL-MECH. SEALS-14pp 22/6/07 11:10 Page 11Parallel Spring ‘O’Ring Mounted SealsP.T.F.E. Wedge Type SealsTYPE 95 / 95NRobust, general purpose, unbalanced pusher type seal capableof many shaft-sealing duties. The Type 95 drives directly fromthe shaft, and is also available with a short, non-pinned seat asType 95N. Seal illustrated shows a stainless steel rotary face.TYPE 1609 / 1609SMultiple Spring seal with a highly effective design, commonlyused in chemical and petro-chemical duties. These seals arefrequently fitted with the Type 25 seat. Standard Type 1609incorporates a PTFE Wedge secondary seal, with the alternative‘O’Ring Type as 1609S. (1609 drawing shown)Standard Stock Face Materials : Rotary Face : Silicon Carbide, Tungsten Carbide, Ceramic, Stainless Steel, Chrome Oxide coatedStainless Steel Stat Ring : Ceramic, Silicon Carbide, Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.625” to 4.500” Metric : 20mm to 120mmTYPE 96Robust, general purpose, unbalanced pusher Type seal capableof many shaft-sealing duties. The Type 96 drives directly fromthe shaft via the split ring, inserted into the coil tail. Alsoavailable with a short, non-pinned seat as Type 96N. Sealillustrated shows a Silicon Carbide rotary face.Standard Stock Face Materials : Rotary Face : Silicon Carbide, Tungsten Carbide, Ceramic, Stainless Steel, Chrome Oxide coatedStainless Steel Stat Ring : Ceramic, Silicon Carbide, Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.625” to 4.500” Metric : 16mm to 120mmTYPE 97Robust, general purpose, unbalanced pusher type sealcapable of many shaft-sealing duties. The Type 97 drives fromthe shaft via the drive collar with grub screws inserted in thecoil tail. Type 97 is also available with a short, non-pinned seatas Type 97N.Standard Stock Face Materials : Rotary Face : Silicon Carbide, Tungsten Carbide, Ceramic, Stainless Steel, Chrome Oxide coatedStainless Steel Stat Ring : Ceramic, Silicon Carbide, Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.625” to 4.500” Metric : 16mm to 120mmTYPE 98Robust, ‘O’Ring mounted, unbalanced, metric shaft, parallelspring seal, as per Type 97, but with the addition of a double‘O’Ring mounted Stationary Seat. Most commonly found inmarine and textile dyeing applications.Standard Stock Face Materials : Rotary Face : Silicon Carbide, Tungsten Carbide, Stainless Steel, Chrome Oxide coatedStainless Steel Stat Ring : Silicon Carbide, Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes 20mm to 130mmStandard Stock Face Materials : Rotary Face : Carbon Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.625” to 5.500” Metric : 20mm to 50mmTYPE 1609B / 1609BSStandard Stock Face Materials : Rotary Face : Carbon Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.625” to 4.000”Multiple Spring, stepped shaft, balanced seal, alternative to theType 1609/1609S. Standard Type 1609B utilises a PTFE Wedgeshaft seal, or specify Type 1609BS for the ‘O’Ring version.Commonly fitted with the next shaft size down Type 25 seat.(1609BS drawing shown)TYPE 1645 / 1645SStandard Stock Face Materials : Rotary Face : Carbon Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.500” to 3.625”Narrow profile, multiple-spring seal, designed for commonAmerican installation dimensions, in chemical process industryequipment. Complies with ANSI B73-1974 centrifugal pumpstandard. Standard Type 1645 utilises a PTFE Wedge secondaryseal and Type 1645S uses an ‘O’Ring. Commonly fitted withType 25 seat. (1645 drawing shown)TYPE 1645B / 1645BSStandard Stock Face Materials : Rotary Face : Carbon Other face materials to orderShaft Sizes : Available in standard shaft sizes 0.750” to 4.000”Multiple-spring, stepped shaft, balanced seal to commonAmerican installation dimensions. Standard Type 1645Bincorporates a PTFE Wedge secondary seal and Type 1645BSbeing the ‘O’Ring variant. Commonly fitted with the next shaftsize down Type 25 seat. (1645BS drawing shown)TYPE 1659 / 1659SNarrow profile, multiple-spring seal with a highly efficientdesign, frequently specified in chemical process industrypumps. Use Type 1659 with a PTFE Wedge or Type 1659S for‘O’Ring variant. Commonly fitted with Type 24 DIN Long orType 24 DIN Short Stats. (1659 drawing shown)Standard Stock Face Materials : Rotary Face : CarbonOther face materials to orderShaft Sizes : Available in standard shaft sizes16mm to 100mm08 09

S1146-B-WELL-MECH. SEALS-14pp 22/6/07 11:10 Page 13Conical Spring Type SealsTYPE 1659B / 1659BSMultiple-Spring, stepped shaft, balanced seal. Standard Type1659B incorporates a PTFE Wedge shaft seal, or specify Type1659BS for the ‘O’Ring version. Commonly supplied with asuitable smaller shaft size Type 24 DIN Long or Type 24 DINShort Seat. (1659BS drawing shown)TYPE 7DResilient, conical spring, ‘O’Ring mounted DIN standard seal.With the advantage of being able to replace the faces. The sealis very versatile and is suitable for a large variety of general andarduous duty applications, through a choice of face materialcombinations.Standard Stock Face Materials : Rotary Face : Carbon Other face materials to orderShaft Sizes : Available in standard shaft sizes 18mm to 100mmStandard Stock Face Materials : Rotary Face : Ceramic, Silicon CarbideOther face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 100mmSeat : Carbon, Silicon CarbideWave Spring Type SealsTYPE 1677 / 1677MWave spring, ‘O’Ring mounted seal commonly utilised in theEuropean chemical process industries. Manufactured to suitDIN 24960 (EN12756) dimensions. Supplied as Type 1677 withan inserted face or increasingly as Type 1677M, with amonolithic face design for exceptional performance. Type 8 DINLong Seat shown is standard, with other variants available.TYPE 8BConical spring, ‘O’Ring mounted seal and seat of similardesign to the Type 8 but with a solid stainless seal head and‘O’Ring mounted Carbon Seat. This Standard face combinationis suitable for general and medium duty applications.Standard Stock Face Materials : Rotary Face : Stainless Steel Stat Ring : Carbon Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 80mmStandard Stock Face Materials : Rotary Face : Sintered Silicon CarbideOther face materials to orderShaft Sizes : Available in standard shaft sizes 14mm to 100mmTYPE 1688Stat Ring : Sintered Silicon Carbide, CarbonWave spring mechanical seal with thin cross section and shortworking length. Most commonly used on rotary lobe pumps,found extensively in the food, process, dairy and breweryindustries. Popular, common sizes are fitted with SinusoidalSplit Wave Springs.TYPE 8Standard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 80mmConical spring, ‘O’Ring mounted seal with a wide choice ofelastometers and face materials. Suitable for a large variety ofgeneral duties and arduous duty applications, including thoseneeding high pV value face combinations.Stat Ring : Ceramic, Silicon Carbide,Standard Stock Face Materials : Rotary Face : Stainless Steel or Tungsten Carbide Stat Ring : Carbon, Silicon Carbide orTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes Inch : 0.625” to 3.000” Metric : 16mm to 100mmTYPE 1688LRotary based wave sprung mechanical seal with thin crosssection and short working length, supplied as standard withType 24 DIN Long seat. Most commonly used on rotary lobepumps found extensively in the food, process, dairy andbrewery industries. Popular, common sizes are fitted withSinusoidal Split Wave Springs.TYPE 8 DINStandard Stock Face Materials : Rotary Face : Carbon, Silicon Carbide, Tungsten CarbideCarbide, Tungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 80mmConical spring, ‘O’Ring mounted, DIN standard seal and DINlong seat with drive slot. Suitable for a large variety of generaland high duty applications through a ready choice of facematerial and elastomer materials.Stat Ring : Ceramic, Carbon, SiliconStandard Stock Face Materials : Rotary Face : Stainless Steel or Tungsten CarbideTungsten Carbide Other face materials to orderShaft Sizes : Available in standard shaft sizes 16mm to 100mmStat Ring : Carbon, Silicon Carbide orTYPE 12 DINA range of highly proficient, widely utilised, ‘O’Ring mounted,conical spring seals with solid, stainless steel head and carbonseat. Available to suit DIN 24960 (EN12756) housings. Suitablefor a wide variety of general and medium duties.Standard Stock Face Materials : Rotary Face : Stainless Steel, Silicon CarbideOther face materials to orderShaft Sizes : Available in standard shaft diameters 10mm to 100mmStat Ring : Carbon, Silicon Carbide1003