TURCON STEPSEAL 2K. - Single Acting - Rubber Energised Plastic Faced Seal - Material - TurconR and ZurconR - Busak+ Shamban

Transcription

1 contents (catalogue) main menu product range fullscreen/variable R R TURCON STEPSEAL 2K - Single Acting - Rubber Energised Plastic Faced Seal - Material - TurconR and ZurconR - 19

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3 Turcon R Stepseal R 2K Turcon R Stepseal R 2K* Description seals must exhibit no dynamic leakage to the atmosphere side under all operating conditions and must be statically completely leak tight when the machine is at a standstill. Furthermore, they should achieve a high degree of mechanical efficiency through low friction and be easy to install in small grooves. Costs and service life must meet the high expectations of the operator. The rod seal Turcon R Stepseal R 2K comes closest to satisfying these ideal demands. Since the first Stepseal R was patented and introduced to the market in 1972, Busak+Shamban has maintained the series as technically outstanding seal elements through continuous innovative further development of the design and of the Turcon R and Zurcon R materials. Turcon R Stepseal R 2K continues the tradition for improvement. With the introduction of Stepseal R it was possible for the first time to arrange several seals, one behind the other, thus allowing statically and dynamically tight double-acting tandem seal configurations to be created, without any disturbing build-up of intermediate pressure. The single-acting seal element is made of high-grade Turcon R or Zurcon R materials with outstanding sliding and wear resistance properties. It is installed according to ISO 7425/2 and Busak+Shamban standard grooves, using an as energizing element. p Figure 15 Turcon R Stepseal R 2K Turcon R Seal ring Turcon R and Zurcon R Low friction, no stick-slip High form stability and wear resistance Meets demanding service conditions High flexibility for easy installation Geometry Patented and patent pending geometry Proven seal edge design Resist damage during installation and service Elastomer High flexibility to compensate hardware tolerances and movement. Elastomer materials available to meet a wide variety of service conditions Relief Chamfer Reducedsealloadunder pressure. Reduced seal friction Contoured Rear Improved back-pumping of residual oil film for increased sealing efficiency. Increased hardware tolerances Increased radial clearance * Patented and patent pending geometry 21

4 main menu contents (catalogue) product range fullscreen/variable TurconR StepsealR 2K Method of operation The relief chamfer reduces pressure loading on the seal, whereby contact with the rod is optimised and sealing performance is improved at high service pressures. The special high-lift rear chamfer combines a smooth downstream sealing face with the ability to meet large radial clearances and hardware tolerances. StepsealR 2K gives high static and dynamic sealing performance, and the build-up of intermediate pressure often found with tandem seal configurations (see Figure 16) is efficiently suppressed. RADIAL CLEARANCE Increased Clearance StepsealR 2K StepsealR K PRESSURE TurconR StepsealR 2K possesses superior extrusion resistance under all service conditions and allows hardware clearance to be significantly increased. Improved Friction Performance StepsealR K FRICTION FORCE The sealing performance of StepsealR 2K (Figure 15) results from the hydrodynamic properties of the seal. The classic StepsealR seal edge creates a steep contact pressure gradient on the high pressure side and a shallow contact pressure gradient on the low pressure side. The controlled pressure gradients minimizes fluid adherence to the piston rod during the extending stroke, and enables residual fluid film on the rod to be returned into the system on the return stroke. This is united with new patented and patent applied design features which further improve the performance of StepsealR 2K under severe service conditions. StepsealR 2K CYCLES TurconR StepsealR 2K offers a uniform, low friction characteristic, throughout its life, including the run in period. Advantages - High static and dynamic sealing effect - High extrusion resistance, meets high hardware clearances - Low friction, high efficiency - Stick-slip free starting, no sticking - High abrasion resistance, high operational reliability - Wide range of application temperatures and high resistance to chemicals, depending on the choice of material - Simple installation without seal edge deformation - Available for all diameters up to mm rod dia. Technical data Operating pressure: up to 80 MPa Speed: up to 15 m/s with reciprocating movements, frequency up to 5 Hz Temperature: -45 C to +200 C (depending on material) Media: Mineral oil-based hydraulic fluids, flame retardant hydraulic fluids, environmentally safe hydraulic fluids (bio-oils), water and others, depending on the material (see Table X) Clearance: The maximum permissible radial clearance Smax is shown in Table XI, as a function of the operating pressure and functional diameter. Important Note: The above data are maximum values and cannot be used at the same time. e.g. the maximum operating speed depends on material type, pressure, temperature and gap value. 22

5 Turcon R Stepseal R 2K Materials The following material combination has proven effective for applications with hydraulic oils containing zinc: Turcon R Stepseal R 2K: Turcon R T46 : NBR, N FKM, V Set code: T46N/T46V For specific applications, other material combinations as listed in Table X, may also be used. S Presses S Automobile industry S Hydraulic hammers S Servo hydraulics Redundant Sealing System In many applications, secondary seal systems are demanded. Figure 16 shows such a tandem configuration with the Stepseal R 2K. Double-acting scraper Series Different cross-section sizes are recommended as a function of the seal diameters. These are the criteria for these recommendations. Table XI, shows the relationship between the series number according to the seal diameter range and the different application class sizes. These application classes are: Standard application: General applications in which no exceptional operating conditions exist. Turcon Stepseal 2K Primary seal p R R Zurcon R Rimseal Secondary seal Light application: Applications with demands for reduced friction or for smaller grooves. Heavy-duty application: Table IX Available range Series No. For exceptional operating loads such as high pressures, pressure peaks, etc. d N f8/h9 RSK RSK RSK RSK RSK RSK RSK RSK5X RSK RSK6X For the recommended range see Table XI. Application Examples S Mobile hydraulic S Standard cylinders S Machine tools S Injection moulding machines Figure 16 Turcon R Stepseal R 2K and Zurcon R Rimseal in tandem configuration In this configuration it must be noted that a sufficiently large space is formed between the seals to take the hydraulic fluid, as shown in the figure. Depending on the application and the operating conditions, the combination of different materials offers a further improvement in the sealing efficiency and the service life of the system, e.g. in hydraulic cylinders subject to high loads and under rough operating conditions, the primary seal should be made of Turcon R and the secondary seal of Zurcon R. Stepseal R 2K elements should always be used in combination with a double-acting scraper to provide an optimum sealing effect. The scraper Turcon R Excluder R 2, Turcon R Excluder R 5, Zurcon R Excluder R 500, DA17, DA22 and DA24 are well suited to such applications. For further details, please refer to our Scrapers catalogue. 23

6 Turcon R Stepseal R 2K Table X Turcon and Zurcon Materials for Stepseal 2K Material, Applications, Properties Turcon T46 Standard material for hydraulics, high compressive strength, good sliding and wear properties, good extrusion resistance, BAM tested. Bronze filled Colour: Greyish to dark brown Code Material Code Operating Temp.* C Mating Surface Material T46 NBR- N -30 to +100 Steel, hardened NBR-Low temp. T -45 to +80 Cast iron FKM- V -10 to +200 Turcon T08 T08 NBR- N -30 to +100 Steel, hardened Very high compressive strength, very good extrusion resistance. NBR-Low temp. T -45 to +80 Cast iron High bronze filled Colour: Light to dark brown FKM- V -10 to +200 Turcon T40 T40 NBR- N -30 to +100 Steel For all lubricating and non-lubricating hydraulic fluids, water hydraulic, NBR-Low temp. T -45 to +80 Cast iron soft mating surfaces. Stainless steel Carbon fibre filled Aluminium Colour: Grey FKM- V -10 to +200 Bronze Alloys EPDM- E** -45 to +145 MPa max Turcon T29 For all lubricating and non-lubricating hydraulic fluids, hydraulic oils without zinc, soft mating surfaces, good extrusion resistance. High carbon fibre filled Colour: Grey T29 NBR- N -10 to +200 Steel NBR-Low temp. T -45 to +80 Cast iron Stainless steel Aluminium FKM- V -10 to +200 Bronze EPDM- E** -45 to Turcon T05 T05 NBR- N -30 to +100 Steel, hardened 25 For all lubricating hydraulic fluids, hard NBR-Low temp. T -45 to +80 mating surfaces, very good slide properties, low friction. Colour: Turquoise FKM- V -10 to +200 Turcon T42 For all lubricating and non-lubricating T42 NBR- N -30 to +100 Steel, hardened hydraulic fluids, good chemical resistance, NBR-Low temp. T -45 to +80 Cast iron good dielectric properties. Glass fibre filled + MoS 2 Colour: Grey to blue FKM- V -10 to +200 Turcon T10 T10 NBR- N -30 to +100 Steel For oil hydraulic and pneumatic, for all lubricating and non- NBR-Low temp. T -45 to +80 Stainless steel lubricating fluids, high extrusion resistance, good chemical resistance, BAM tested. Carbon, graphite filled FKM- V -10 to +200 Colour: Black EPDM- E** -45 to +145 Zurcon Z51*** For lubricating hydraulic fluids, high abrasion resistance, highh extrusion resistance, limited chemical resistance. Cast polyurethane Colour: Yellow to light-brown Z51 NBR- N -30 to +100 Steel Cast iron NBR-Low temp. T -45 to +80 Ceramic coating Stainless steel Zurcon R Z80 Z80 NBR- N -30 to +80 Steel 45 For lubricating and non-lubricating hydraulic fluids, highh abrasion resistance, very good Stainless steel chemical resistance, limited temp. resistance. NBR-Low temp. T -45 to +80 Aluminium Ultra high molecular weight polyethylen Bronze Colour: White to off-white Ceramic coating * The Operation Temperature is only valid in mineral hydraulic oil. BAM: Tested by Bundes-anstalt Materialprüfung, Germany. Highlighted materials are standard. ** Material not suitable for mineral oils. *** max. Ø 2200 mm

7 Turcon R Stepseal R 2K Installation recommendation - L 1 r 1 S D1 S d2 rmax.0.3 dn Figure 17 Installation drawing Table XI Installation dimensions - Standard recommendations Series No. Standard Application d N f8/h9 Light 1) Application Radius Radial Clearance Smax.* Cross- Section Heavy Duty Application D 1 H9 L 1 +0,2 r 1 10 MPa 20 MPa 40 MPa d 2 RSK d N RSK d N RSK d N RSK d N RSK d N RSK d N RSK d N RSK d N * At pressures >40MPa: use diameter tolerance H8/f8 (bore/ rod) in the area behind the seal. 1) For easier installation in closed grooves with small rod diameters (< 40 mm). Ordering example Turcon R Stepseal R 2K complete with, standard application, Series RSK4 (from Table XI). diameter: d N = mm : RSK (from Table XII) Select the material from Table X. The corresponding code numbers are appended to the (from Table XII). Together these form the order number. The order number for all intermediate sizes not shown in Table XII can be determined following the example opposite. ** For diameters mm multiply only by factor 1. Example: RSK6 for diameter mm. Order no.: RSK6X T46N. Order No. RSK T46 N Series No. Type (Standard) diameter x 10** Quality Index (Standard) Material code (Seal ring) Material code () 25

8 Turcon R Stepseal R 2K Table XII Preferred series / d N f8/h9 D 1 H9 L RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x 3.53 d N f8/h9 D 1 H9 L RSK x RSK x RSK RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x

9 Turcon R Stepseal R 2K d N f8/h9 D 1 H9 L RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x 5.33 d N f8/h9 D 1 H9 L RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x

10 Turcon R Stepseal R 2K d N f8/h9 D 1 H9 L RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x 8.4 d N f8/h9 D 1 H9 L * RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK x RSK6X x RSK6X x RSK5X x RSK6X x RSK5X x RSK6X x RSK6X x RSK5X x RSK6X x RSK5X x RSK6X x RSK5X x RSK6X x RSK5X x RSK6X x RSK6X x RSK6X x RSK6X x 12 The rod diameters in bold type are in accordance with the recommendations of ISO Other dimensions and all intermediate sizes up to 2600 mm diameter including imperial (inch) sizes can be supplied. *All s with 12 mm cross section are delivered as special Profilring. 28

11 Turcon R Stepseal R 2K Installation according to ISO 7425, Part 2 L1 r1 S D1 S rmax.0.3 dn Figure 18 Installation drawing Dimensions to ISO 7425/2. Turcon R Stepseal R 2K seals to fit grooves to ISO 7425/2 are additionally marked with a chamfer on the corner of the outside diameter. The dimensions for clearance S, depending on seal dimensions (groove width) and pressure, can be taken from Table XI. For dimensions d N,D 1 and L 1 please refer to Table XIV. Chamfer Figure 19 Marking of the ISO version Table XIII Preferred series / Series No. Available for s Dia. ISO Std. Radial Depth ISO Std. Axial ISO Std. f /-0 0 Dia. Tol. ISO Std. Radius ISO Std. RSKA ø6 - ø100 ø6 - ø63 RSKB (H9) (r 1 =0.5) RSKC RSKD RSKE ø110 - ø360 ø63 - ø360 (H8) (r 1 =0.9) RSKF

12 Turcon R Stepseal R 2K Table XIV Installation dimensions to ISO 7425/2 / r 1 r 1 d N f8/h9 D 1 H9 L 1 +0, RSKA x RSKA x RSKA x RSKA x RSKB x RSKA x RSKB x RSKB x RSKB x RSKB x RSKC x RSKB x RSKC x RSKB x RSKC x RSKC x RSKC x RSKC x RSKC x RSKC x RSKC x RSKC x RSKD x RSKC x RSKD x RSKD x RSKD x RSKD x RSKD x 5.33 d N f8/h9 D 1 H8 L RSKD x RSKD x RSKD x RSKD x RSKE x RSKD x RSKE x RSKE x RSKE x RSKE x RSKF x RSKF x RSKF x 7.0 Above table only includes ISO rod diameters. Other dimensions and all intermediate sizes up to 2600 mm diameter including imperial (inch) sizes can be supplied. Ordering example Turcon R Stepseal R 2K to ISO 7425/2 diameter: d N = 63.0 mm width: L 1 = 4.2 mm RSKC00630 Select the material from Table X. The corresponding code numbers are appended to the (from Table XIV). Together these form the order number. Order No. RSKC T46 N Type (Standard) diameter x 10 Quality Index (Standard) Material code (Seal ring) Material code () 30

13 contents (catalogue) main menu product range fullscreen/variable R R TURCON STEPSEAL K - Single Acting - Rubber Energised Plastic Faced Seal - Material - TurconR and ZurconR - 31

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15 Turcon R Stepseal R K Turcon R Stepseal R K Description The sealing of piston rods places the highest demands on operational safety and environmental protection in hydraulic engineering. seals must exhibit no dynamic leakage to the atmosphere side under all operating conditions and must be statically completely leak tight when the machine is at a standstill. Furthermore, they should achieve a high degree of mechanical efficiency through low friction and be easy to install in small grooves. Costs and service life must meet the high expectations of the operator. The piston rod seal, Turcon R Stepseal R K, developed by Busak+Shamban comes closest to satisfying these ideal demands. Already in use for several decades this seal is still a technically outstanding seal element due to the continuous innovative further development of the design and of the Turcon R and Zurcon R materials. With the introduction of the Stepseal R K it was possible for the first time to arrange several seals one behind the other, thus allowing statically and dynamically tight, double-acting tandem seal configurations to be created without any disturbing build-up of intermediate pressure. The single-acting seal element is made of high-grade Turcon R or Zurcon R materials with outstanding sliding and wear resistance properties. It is installed according to ISO 7425/2 and Busak+Shamban standard grooves, using an as energizing element. p Figure 20 Turcon R Stepseal R K Turcon R Seal ring Method of Operation The sealing mechanism of the Stepseal R K(Figure20) is based on the hydrodynamic properties of the seal. The specially formed seal edge with a steep contact pressure gradient on the high pressure side and a shallow contact pressure gradient on the low pressure side ensures that the fluid film adhering to the piston rod is returned to the high pressure chamber on the return stroke of the rod. This prevents the micro-fluid layer, carried out of the high pressure chamber when the piston rod is extended, causing leaks. This return delivery property prevents the build-up of intermediate pressure normally associated with tandem seal configurations (Figure 21) with primary and secondary seal. From our experience we know that the level of the pressure between the two seals does not exceed 10% of the working pressure. It depends on the speed, the stroke length and the groove design. Advantages - High static and dynamic sealing effect - Low friction, high efficiency - Stick-slip-free starting, no sticking - High abrasion resistance, high operational reliability - Simple groove design - Wide range of application temperatures and high resistance to chemicals, depending on the choice of material - Simple installation without seal edge deformation - Available for all diameters up to mm Technical Data Operating pressure: Speed: Temperature: Media: Clearance: up to 80 MPa up to 15 m/s with reciprocating movements, frequency up to 5 Hz -45 C to +200 C (depending on material) Mineral oil-based hydraulic fluids, flame retardant hydraulic fluids, environmentally safe hydraulic fluids (bio-oils), water and others, depending on the material The maximum permissible radial clearance s max isshownintable XVI, as a function of the operating pressure and functional diameter Important Note: The above data are maximum values and cannot be used at the same time. e.g. the maximum operating speed depends on material type, pressure, temperature and gap value. 33

16 Turcon R Stepseal R K Materials The following material combination has proven effective for most applications with hydraulic oils containing zinc: Turcon R Stepseal R K: Turcon R T46 : NBR, N Set: FKM, T46N/T46V For specific applications, other material combinations listed in Table XV, may also be used. Series Different profile cross-sections are defined as a function of the seal diameters. These are indicated by the series numbers. Table XVI, shows the relationship between the series number according to the seal diameter range and the different application class sizes. These application classes are: Standard application: Light application: Heavy-duty application: Application Examples S Mobile hydraulic S Standard cylinders S Machine tools S Injection moulding machines S Presses S Automobile industry S Hydraulic hammers S Servo hydraulics General applications in which no exceptional operating conditions exist. Applications with demands for reduced friction or for smaller grooves. For exceptional operating loads such as high pressures, pressure peaks, etc. V Redundant Sealing System In many applications, secondary seal systems are demanded. Figure 21 shows such a tandem configuration with the Stepseal R K. Turcon R StepsealR K Primary seal P Figure 21 Double-acting scraper ZurconR Rimseal Secondary seal Turcon R Stepseal R KandZurcon R Rimseal in tandem configuration In this configuration it must be noted that a sufficiently large space is formed between the seals to take the hydraulic fluid, as shown in the figure. Depending on the application and the operating conditions, the combination of different materials offers a further improvement in the sealing efficiency and the service life of the system, e.g. in hydraulic cylinders subject to high loads and under rough operating conditions, the primary seal should be made of Turcon R and the secondary seal of Zurcon R. Stepseal R K elements should always be used in combination with a double-acting scraper to provide an optimum sealing effect. The scraper Turcon R Excluder R 2, Turcon R Excluder R 5, Zurcon R Excluder R 500, DA17, DA22 and DA24 are well suited to such applications. For further details, please refer to our Scrapers catalogue. 34

17 Turcon R Stepseal R K Table XV Turcon and Zurcon Materials for Stepseal K Material, Applications, Properties Turcon T46 Standard material for hydraulics, high compressive strength, good sliding and wear properties, good extrusion resistance, BAM tested. Bronze filled Colour: Greyish to dark brown Code Material Code Operating Temp.* C Mating Surface Material T46 NBR - N -30 to +100 Steel, hardened NBR - Low temp. T -45 to +80 Cast iron FKM - V -10 to +200 Turcon T08 T08 NBR - N -30 to +100 Steel, hardened ed Very highh compressive strength, very good extrusion resistance. NBR - Low temp. T -45 to +80 Cast iron High bronze filled Colour: Light to dark brown FKM - V -10 to +200 MPa max Turcon T40 For all lubricating and non-lubricating hydraulic fluids, water hydraulic, soft mating surfaces. Carbon fibre filled Colour: Grey Turcon T29 For all lubricating and non-lubricating hydraulic fluids, hydraulic oils without zinc, soft mating surfaces, good extrusion resistance. High carbon fibre filled Colour: Grey T40 NBR - N -30 to +100 Steel NBR - Low temp. T -45 to +80 Cast iron Stainless steel Aluminium i FKM - V -10 to +200 Bronze Alloys EPDM- E** -45 to +145 T29 NBR - N -30 to +100 Steel NBR - Low temp. T -45 to +80 Cast iron Stainless steel Aluminium i FKM - V -10 to +200 Bronze EPDM- E** -45 to Turcon T05 T05 NBR - N -30 to +100 Steel, hardened For all lubricating hydraulic fluids, hard NBR - Low temp. T -45 to +80 mating surfaces, very good slide properties, low friction. Colour: Turquoise FKM - V -10 to +200 Turcon T42 For all lubricating and non-lubricating T42 NBR - N -30 to +100 Steel, hardened hydraulic fluids, good chemical resistance, NBR - Low temp. T -45 to +80 Cast iron good dielectric properties. Glass fibre filled + MoS 2 Colour: Grey to blue FKM - V -10 to +200 Turcon T10 T10 NBR - N -30 to +100 Steel For oil hydraulic and pneumatic, for all lubricating and non- NBR - Low temp. T -45 to +80 Stainless steel lubricating fluids, high extrusion resistance, good chemical resistance, BAM tested. Carbon, graphite filled FKM - V -10 to +200 Colour: Black EPDM- E** -45 to +145 Zurcon Z51*** For lubricating hydraulic fluids, high abrasion resistance, high extrusion resistance, limited chemical resistance. Cast polyurethane Colour: Yellow to light-brown Zurcon R Z80 For lubricating and non-lubricating hydraulic fluids, high abrasion resistance, very good chemical resistance, limited temperature resistance. Ultra high molecular weight polyethylen Colour: White to off-white Z51 NBR - N -30 to +100 Steel Cast iron NBR - Low temp. T -45 to +80 Ceramic coating Stainless steel Z80 NBR - N -30 to +80 Steel Stainless steel NBR - Low temp. T -45 to +80 Aluminium Bronze Ceramic coating * The Operation Temperature is only valid in mineral hydraulic oil. BAM: Tested by Bundes Anstalt Materialprüfung, Germany. Highlighted materials are standard. **Material not suitable for mineral oils. *** max. Ø 2200 mm

18 Turcon R Stepseal R K Installation Recommendation (for new Constructions please apply Turcon R Stepseal R 2K) L1 r1 rmax.0.3 d S D1 N S d2 Figure 22 Installation drawing Table XVI Installation Dimensions - Standard Recommendations width Radius Radial Clearance Cross- Section d N f8/h9 Smax.* Series No. Series No. Series No. RS 13 RS 15 1) RS 11 Standard Light Heavy Duty Application Application Application D 1 H9 L r 1 10 MPa 20 MPa 40 MPa d d N d N d N d N d N d N d N ** d N * At pressures >40MPause diameter tolerance H8/f8 (bore/rod) in area behind the seal. 1) For easier installation in closed grooves with small rod diameters (< 40 mm) we recommend the use of series RS 15. ** Energiser has a special shape. Ordering example Turcon R Stepseal R K complete with, standard application, Order No. RS T46 N Series RS 13 (from Table XVI). diameter: d N = 80.0 mm Series No. : RS (from Table XVII) Type (Standard) Select the material from Table XV. The corresponding code numbers are appended to the (from Table XVII). Together these form the order number. diameter x 10*** Quality Index (Standard) The order number for all intermediate sizes not shown in Material code (Seal ring) Table XVII can be determined following the example opposite. Material code () *** For diameters mm multiply only by factor 1. Example: RS13 for diameter mm. Order no.: RS13X T46N. 36

19 Turcon R Stepseal R K Table XVII Preferred Series / d N f8/h9 D 1 H9 L RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x 3.53 d N f8/h9 D 1 H9 L RS x RS x RS RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x

20 Turcon R Stepseal R K d N f8/h9 D 1 H9 L RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x 5.33 d N f8/h9 D 1 H9 L RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x

21 Turcon R Stepseal R K d N f8/h9 D 1 H9 L RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x 8.4 d N f8/h9 D 1 H9 L * RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS13X x RS13X x RS15X x RS13X x RS15X x RS13X x RS13X x RS15X x RS13X x RS15X x RS13X x RS15X x RS13X x RS15X x RS13X x RS13X x RS13X x RS13X x 12 The rod diameters in bold type are in accordance with the recommendations of ISO Other dimensions and all intermediate sizes up to mm diameter including imperial (inch) sizes can be supplied. *All s with 12 mm cross section are delivered as special profilring. 39

22 Turcon R Stepseal R K Installation According to ISO 7425, Part 2 L1 r1 D1 rmax.0.3 d S S N Figure 23 Installation drawing Dimensions to ISO 7425/2. Turcon R Stepseal R K seals to fit grooves to ISO 7425/2 are additionally marked with a chamfer on the corner of one outside diameter. Chamfer Ordering Example Turcon R Stepseal R K to ISO 7425/2 diameter: d N = 63.0 mm width: L1 = 4.2 mm RS Select the material from Table XV. The corresponding code numbers are appended to the (from Table XVIII). Together these form the order number. Figure 24 Marking of the ISO version The dimensions for clearance S, depending on seal dimensions (groove width) and pressure, can be taken from the standard Stepseal R. For dimensions d N, d1 and L1 please refer to Table XVIII. For new constructions we recommend Turcon R Stepseal R 2K. Order No. RS T46 N Type (Standard) diameter x 10 Quality Index (Standard) Material code (Seal ring) Material code () 40

23 Turcon R Stepseal R K Table XVIII Installation Dimensions to ISO 7425/2 r 1 r 1 d N f8/h9 D 1 H9 L 1 +0, RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x 3.53 d N f8/h9 D 1 H9 L RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x RS x 7.0 Above table only includes ISO rod diameters. Other dimensions and all intermediate sizes up to mm diameter including imperial (inch) sizes can be supplied. 41