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

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

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