Rely On Excellence BT-Burgmann Mechanical Seals - Tecnica Industriale
Rely on excellence BT-Burgmann Mechanical Seals
BT-Burgmann in profile BT-Burgmann S.p.A. was founded in 1966 to satisfy the requirements for mechanical seals of italian pumps manufacturers. The company has grown continuously and actually produces more than 8 million mechanical seals a year with around 70 employees. The parent company BT-Burgmann S.p.A. offers technical and commercial services while BT Tenute Meccaniche Rotanti S.p.A. is the groups production facility. In 1998 BT joined the EagleBurgmann group. Initially structured as a small family owned company with a national market, BT-Burgmann has developed into a modern company oriented towards a global market with export sales of more than 45 % of the turnover. The company has two production plants (total area 5.400 square meters) in the industrial area of Arcugnano (Vicenza). BT-Burgmann is market leader for mass production mechanical seals in clean water applications. Our seals are regularly used in many applications such as: BT-Burgmann SPA Hot water and water pumps Swimming pool pumps Massage pumps in whirlpools Pumps for garden and ponds Submersible pumps Submersible well motors Waste water pumps Circulation pumps Pumps for dishwashers Shower pumps Building service systems Coffee machines In addition, the BT-Burgmann range of products also embraces seals for light chemicals and food industry applications, for abrasive media and for pressures up to 40 bar. The most valuable customers of BT-Burgmann are the largest European water pump manufacturers and many other well known worldwide pump producers.
Quality Production BT-Burgmann is a certified company having highly qualified technical personnel and the most advanced equipments for research, production and control in accordance with the highest international standards. Our certifications are: UNI EN ISO 9001 Quality Management System UNI EN ISO 14001 Environment Management System OHSAS 18001 Health and Safety Management System Conformity declaration of hygiene for water for human use (TIFQ Italian Institute – DM 174/04) Automation Large investments into production processes and complete automation of many manufacturing phases allow to achieve the combined target of reasonable prices and high quality products. Testing facilities Test rig Different test rigs for life-tests and special equipments for submersible pumps ensure quality control as well as continuous development of new products. It’s also possible to test specific customer solutions. Research and development Scanning electron microscope A staff of qualified technicians is permanently employed developing innovative solutions. BT-Burgmann R&D and Lab departments are working with excellent equipments and advanced technologies: Flatness analysis system Thermal analysis equipment (research on rubber and carbon) Scanning electron microscope with EDX probe (material composition analysis) FT-IR spectrometer (organic chemical analysis) BT Tenute Meccaniche Rotanti SPA 1
Type BT-AR BT-AR Rubber bellows mechanical seal Unbalanced Single spring Independent of direction of rotation BT-AR Multiple Seal Mechanical seal for large series cold water pumps, produced in million of units per year. The BT-AR owes its success to the wide range of application, the short axial stuffing box (this allows to build the pump more economically, saving material) and to the best ratio quality/price. The elasticity of the bellows design permits to accept a more robust operation. The BT-AR seal materials are also available with the following approval specifications: KTW, W270, ACS, WRAS, NSF, DM174 (TIFQ) and FDA. The BT-AR can also be used as a multiple seal in tandem or back-to-back arrangement when the product media cannot assure the lubrication or for sealing media with a higher content of solids. Installation proposals can be supplied on request. Ideal mechanical seal for the following applications: Domestic and garden pumps Whirlpool and swimming pool pumps Dishwasher pumps Submersible motors / pumps Water pumps 2 Operating range BT-AR3 Seal faces with brazed tungsten carbide (U) for abrasive media. Elastomers and diameter range same as BT-AR. The BT-AR3 is the right choice when the seal has to be used in high duty applications or where the seal faces could be damaged by abrasives (waste water). Materials BT-AR Seal face B, B3, A, Q1, Y, Y2 Stationary seat X, V, Q1, Q6, E, F, G, V1 Rubber parts P, E, V, P2, P4, P5, E2 Construction materials F, G Standard combination BXPFF BT-AR3 Seal face U Stationary seat U Rubber parts P, V, E Construction materials F, G, F1 Standard combination UUPFF1
BT-AR BT-AR3 2 3a 0 1 d7 –0.1 3 d 4 0.1 4 d3 d 4 min 5 5b d1 0.05 5a 20 l5 l6 l3 Item 1 2 3 3a 4 5 5a 5b l4 Designation Seal face Stationary seat Bellows Gasket Compression spring Ring Locking ring Collar Dimensions (mm) d1 d3 6 18 8S 20 8 24 3/8" 24 3/8" 24 10 24 11 24 12C 24 12 24 1/2" 24 13 24 14S 28 14L 28 14 32 15 32 16R 32 16 39 16 39 17 39 18 39 19 39 20 39 20S 42 22 42 23 47 24 47 25R 42 25 47 26 47 27 47 28 54 30 54 32 54 35 60 38 65 40 65 45 70 50 85 60 105 d4 23 23 27 27 27 27 27 27 27 27 27 30 30 35 35 35 43 43 43 43 43 43 47 47 52 52 52 52 52 52 60 60 60 70 75 75 80 95 115 d6 8 10 10 12 12 12 13 14 14 15 15 18 18 16 17 18 18 18 19 20 21 22 22 24 25 26 27 27 29 30 31 33 35 38 41 43 48 53 63 d7 22.0 22.0 26.0 25.4 25.4 26.0 26.0 26.0 26.0 25.4 26.0 28.5 28.5 29.5 29.5 29.5 38.0 42.0 42.0 42.0 42.0 42.0 45.0 45.0 50.0 50.0 50.0 50.0 50.0 50.0 57.0 57.0 57.0 63.0 68.0 68.0 73.0 88.0 110.0 I3 8.0 11.0 11.0 11.0 11.0 11.0 11.0 11.0 12.8 12.8 12.8 12.8 15.3 12.8 12.8 12.8 12.8 12.8 12.8 12.8 12.8 12.8 12.8 12.8 13.5 13.5 13.5 13.5 13.5 13.5 15.0 15.0 15.0 16.0 18.0 18.0 20.0 23.0 30.0 toll 0.5/0 0.5/0 0.5/0 0.5/0 0.5/0 0.5/0 0.5/0 0.5/0 0.7/0 0.7/0 0.7/0 0.7/0 0.8 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 I4 4.0 4.0 8.0 5.5 7.5 8.0 8.0 8.0 8.0 7.5 8.0 7.5 7.5 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 12.0 12.0 12.0 15.0 15.0 I5 0.5 0.5 1.0 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 2.0 2.0 2.0 2.0 2.0 I6 3.5 3.5 6.0 4.5 5.5 6.0 6.0 6.0 6.0 5.5 6.0 5.5 5.5 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 6.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 9.0 9.0 9.0 12.0 12.0 * * * * * * *Alternative seat l4 5.5/l5 0.5/l6 4.5 3
Type BT-A2 BT-A2 Rubber bellows mechanical seal Unbalanced Single spring Independent of direction of rotation BT-A2 Materials Stationary mechanical seal in inch dimensions. Worldwide spread, this type of mechanical seal has reached an unsurpassed quality level. The BT-A2 features all carbon or high quality resin impregnated carbon, aluminium oxide 96 %, stationary with rubber bellows glued on collar. Static air pressure test on 100 % production. Excellent solution for swimming pool pumps. The BT-A2 is suitable for circulation massage pumps for whirlpools and clean water pumps. Seal face B, B3 Stationary seat V1 Rubber parts P Construction materials F, G Standard combination BV1PFF, B3V1PGG 4 Operating range
BT-A2 l3 l4 l6 2 1 3a R1 l7 min Item 1 2 3 3a 4 5 d7 4 d1 0.05 3 d3 d4 5 0 –0.1 R 0.8 Designation Seal face Stationary seat Bellows Gasket Compression spring Collar Dimensions (mm) d1* 1/2" 5/8" 3/4" d1 12.70 15.88 19.05 d3 toll 28.55 0.02 36.45 0.02 40.00 0.03 d4 35.0 41.0 44.0 d7 25.40 31.75 34.95 l3 5.2 6.8 6.5 toll 0.5 0.5 0.5 l4 8.0 10.3 10.3 I6 6.0 8.5 8.0 I7 10 10 11 * Dimensions in inch 5
Type BT-ARP BT-ARP Rubber bellows mechanical seal Independent of direction of rotation Single spring, product protected BT-ARP Materials BT-ARP mechanical seals are the ideal solution for media which are containing solids or are highly viscous . The spring is product protected, thus no sticking or clogging occurs. Reliable for a rugged operation in all kind of applications e.g. waste water treatment. Diameters and installations lengths available on request. Seal face Q1, Q6, U Stationary seat Q1, Q6, U Rubber parts P, P4, V Construction materials F, G 6 Operating range
I3 I4 I5 5a Item 1 2 3 3a 4 5 5a 5b d6 0.1 d7 H8 5b 3a 2 1 4 5 3 d3 I6 d1 0.05 BT-ARP Designation Seal face Stationary seat Bellows Rubber cup Spring Ring Locking ring Collar 7
Type BT-PN/-PNL BT-PN/-PNL Rubber bellows mechanical seals Unbalanced Single spring Independent of direction of rotation BT-PN Multiple seal The BT-PN is a mechanical seal for large series with a simple but effective design, easy to assemble. The special spring arrangement allows a short axial installation length. This advantage is combined with an increased working pressure capability up to 12 bar, the spring is free from torque transmission. The BT-PN seal materials are also available with following approval specifications: KTW, W270, ACS, WRAS, NSF, FDA and DM174 (TIFQ). The BT-PN and BT-PNL can also be used as a multiple seal in tandem or back-to-back arrangement. This is advisable when the product media cannot assure lubrication or the content of solids is too high. Installation proposals can be supplied on request. BT-PNL The small outer diameter of the BT-PNL allows its installation in small stuffing box chambers. Easy to assemble, the BT-PNL grants a long service life due to the good product turbulence and to the torque transmitted by rubber bellows. The BT-PNL seal materials are also available with the following approval specifications: KTW, W270, ACS, WRAS, NSF, FDA and DM 174 (TIFQ). Suitable for cold water pumps, submersible pumps and well water pumps. 8 Operating range Materials BT-PN Seal face A, B, Q1, Q6 Stationary seat V, X, Q1, Q2, Q6 Rubber parts P, V, E, E2, P2 Construction materials F, G Standard combination BVPFF BT-PNL Seal face A, B, Q1, Q6 Stationary seat V, X, Q1, Q2, Q6 Rubber parts P, V, E, E2, P2 Construction materials F, G Standard combination BVPFF Ideal for the following applications: Submersible oil filled motors (4" / 6") Submersible pumps, back-to-back installation Peripheral pumps for industrial applications Domestic and garden pumps Coffee machines Shower pumps
BT-PN BT-PNL I1 1 2 3a d3 0 3 – 0.1 5b d7 5a d6 0.1 0 4 d1 0.05 5 –0.1 3a I6 d7 2 I4 I5 d6 0.1 1 I6 d1 0.05 5a 5b 3 I5 I3 d3 5 4 I1 0.5 I4 I3 20 20 Item 1 2 3 3a 4 5 5a 5b Designation Seal face Stationary seat Bellows Gasket Compression spring Ring Drive ring Collar Item 1 2 3 3a 4 5 5a 5b Dimensions (mm) d1 8.00 8.00 3/8" 10.00 13.00 14.00 15.00 16.00 16.001) 20.00 25.00 30.00 1) d3 23 23 23 23 32 32 32 32 32 44 50 60 d6 10 10 12 12 17 17 17 17 17 22 27 33 4“ submersible motor Designation Seal face Stationary seat Bellows Gasket Compression spring Ring Drive ring Collar Dimensions (mm) d7 22.0 25.4 25.4 25.4 29.5 29.5 29.5 29.5 29.5 42.0 42.0 52.0 l1 17.5 19.0 19.0 19.0 20.8 20.8 20.8 20.8 24.3 22.0 24.0 32.0 l3 13.5 13.5 13.5 13.5 12.8 12.8 12.8 12.8 16.3 14.0 17.0 22.0 toll 1 1 1 1 0.7/0 0.7/0 0.7/0 0.7/0 0.7/0 1 1 1 l4 4.0 5.5 5.5 5.5 8.0 8.0 8.0 8.0 8.0 8.0 7.0 10.0 l5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 l6 3.5 4.5 4.5 4.5 6.0 6.0 6.0 6.0 6.0 6.0 5.0 6.0 d1 10.00 11.00 12.00 13.00 14.00 15.00 16.00 19.05 20.00 25.402) 30.00 31.75 40.00 2) d3 22 22 22 28 28 28 28 32 32 42 52 52 63 d6 14 14 14 17 17 17 17 22 22 29 33 34 45 d7 26.00 26.00 26.00 29.50 29.50 29.50 29.50 34.95 42.00 41.45 52.00 47.60 68.00 l1 21.00 21.00 21.00 26.00 26.00 26.00 26.00 32.20 30.00 38.20 40.00 60.20 47.00 l3 15.5 15.5 15.5 18.0 18.0 18.0 18.0 22.0 22.0 27.0 28.0 49.2 35.0 l4 5.5 5.5 5.5 8.0 8.0 8.0 8.0 10.0 8.0 11.0 12.0 11.0 12.0 l5 0.5 0.5 0.5 1.0 1.0 1.0 1.0 1.2 1.0 1.5 1.5 1.5 1.5 l6 4.5 4.5 4.5 6.0 6.0 6.0 6.0 7.8 6.0 8.5 8.5 8.5 8.5 6“ submersible motor 9
Type BT-PNT BT-PNT Rubber bellows mechanical seal Unbalanced Single spring Independent of direction of rotation BT-PNT Materials The main design features of the BT-PNT are the metal joint torque transmission together with a rubber bellows. Easy to assemble, the BT-PNT grants a long service life due to good product turbulence. Suitable for swimming pool pumps, cold water pumps and pumps for home and garden. Seal face B, B3, Q1 Stationary seat V, Q1 Rubber parts P, E Construction materials G, F Standard combination BVPGG The BT-PNT seal materials are also available with following approval specifications: KTW, W270, ACS, WRAS, NSF, FDA and DM174 (TIFQ). 10 Operating range
BT-PNT I1 I3 I4 5 1 2 3a d3 0 4 d7 –0.1 3 d1 0.05 6 I6 d6 0.1 I5 20 Item 1 2 3 3a 4 5 6 Designation Seal face Stationary seat Bellows Rubber cup Spring Housing Driver Dimensions (mm) d1 d1 15.00 15.00 5/8" * 15.88 3/4" * 19.05 d3 27.0 27.0 29.8 32.0 d6 17 17 18 21 d7 29.50 31.75 31.75 35.00 l1 25,0 27.3 28.6 29.2 l3 17.0 17.0 18.3 19.0 toll 0.5 0.5 0.5 0.5 l4 8.0 10.3 10.3 10.2 I5 1 1 1 1 I6 6 8 8 8 * Dimensions in inch 11
Type BT-FN/FN.NU BT-FN/FN.NU Single pusher type seal Unbalanced Conical spring Dependent on direction of rotation BT-FN BT-FN.NU The BT-FN combines a spring loaded ceramic face with the tradition of pusher mechanical seals. The competitive price and the wide range of applications have made the BT-FN a successful seal. Recommended for centrifugal pumps, clean water pumps, pumps for domestic applications and gardening. As BT-FN but with length l1N and dimensions according to EN 12756. The BT-FN is produced with punched metal parts that allow to have an economical design. For the heaviest applications BT-FH is recommended where the metal parts are machined. The BT-FN mechanical seal is also the ideal solution for light chemicals media applications. To ensure best and reliable performances, sliding faces of hard materials and proper elastomeric O-rings are the recommended material combination. The BT-FN seal materials are also available with following approval specifications: KTW, W270, ACS, WRAS, NSF, FDA and DM174 (TIFQ). 12 Materials BT-FN Seal face X, B, V, Q1, U1, Q6 Stationary seat B, X, V, Q1, U1, Q6 Rubber parts P, E, V, P2, E2 Construction materials G, F Standard combination XBPGF BT-FN.NU Seal face X, B, V, Q1, U1, Q6 Stationary seat B, X, V, U1, Q6, Q1 Rubber parts P, E, V, P2, E2 Construction materials G, F Standard combination XBPGF Operating range
I1 0.5 I5 I3 I4 I5 2 3a R/L A 4 5 3b d3 max 1 d4 min 3 d7 H8 5 d1 h6 3b d3 d4 min 4 d6 H11 I6 3 1 2 I6 3a B R/L d8 d7 H8 I4 d1 h6 I3 I1 N 0.5 BT-FN.NU d6 H11 I1 0.5 BT-FN B 20 20 5 I7 Item 1 2 3 3a 3b 4 5 Designation Seal face Stationary seat O-Ring O-Ring O-Ring Compression spring Collar Item 1 2 3 3a 3b 4 5 A B Dimensions (mm) d1 10 11 12 13 14 15 16 17 18 19 20 22 24 25 28 30 32 35 38 40 d3 19.5 22.5 22.5 24.5 24.5 29.0 29.0 29.0 32.5 32.5 32.5 37.5 37.5 40.0 46.0 46.0 46.0 50.0 58.0 58.0 d4 22 25 25 28 28 32 32 32 36 36 36 42 42 45 51 51 51 55 68 68 Designation Seal face Stationary seat O-Ring O-Ring O-Ring Compression spring Collar Sleeve (on request) Stationary seat with slot for radial pin (on request) Dimensions (mm) d6 14.0 16.5 16.5 19.0 19.0 21.0 21.0 21.0 25.0 25.0 25.0 30.0 30.0 33.0 38.0 38.0 38.0 45.0 52.0 52.0 d7 18.1 20.6 20.6 23.1 23.1 26.9 26.9 26.9 30.9 30.9 30.9 35.4 35.4 38.2 43.3 43.3 43.3 53.5 60.5 60.5 l1 20.5 23.5 23.5 28.0 28.0 29.0 30.0 30.0 32.0 33.0 33.0 33.0 35.0 35.5 38.0 39.0 39.0 50.5 50.5 50.5 l3 15 18 18 22 22 22 23 23 24 25 25 25 27 27 29 30 30 39 39 39 l4 5.5 5.5 5.5 6.0 6.0 7.0 7.0 7.0 8.0 8.0 8.0 8.0 8.0 8.5 9.0 9.0 9.0 11.5 11.5 11.5 I5 1.2 1.2 1.2 1.2 1.2 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 I6 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 6 6 6 d1 10 12 14 16 18 20 22 24 25 28 30 32 35 38 40 d3 20.0 22.5 24.5 29.0 32.5 32.5 37.5 37.5 40.0 46.0 46.0 46.0 50.0 58.0 58.0 d4 22 26 28 32 36 36 40 40 42 48 48 48 53 68 68 d6 17 19 21 23 27 29 31 33 34 37 39 42 44 49 51 d7 21 23 25 27 33 35 37 39 40 43 45 48 50 56 58 d8 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 l1N 40 40 40 40 45 45 45 50 50 50 50 55 55 55 55 l1 22.0 25.0 29.0 30.0 34.0 35.0 35.0 37.0 37.0 39.0 40.0 40.0 49.0 52.0 52.0 l3 15 18 22 23 24 25 25 27 27 29 30 30 39 39 39 l4 7 7 7 7 10 10 10 10 10 10 10 10 10 13 13 I5 1.5 1.5 1.5 1.5 2 2 2 2 2 2 2 2 2 2 2 I6 4 4 4 4 5 5 5 5 5 5 5 5 5 6 6 l7 8.5 8.5 8.5 8.5 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 d3, d4 dimensions not always according to EN 12756 l1N corresponds according to EN 12756 13
Type BT-FH BT-FH Single pusher type seal Unbalanced Conical spring Dependent on direction of rotation BT-FH Materials The BT-FH is produced the demanding applications. BT-FH is recommended where operating conditions in the pump require machined metal parts for the mechanical seal. The seals are available in the full range of diameters between 10 and 100 mm and especially in the most standard diameters for chemical applications as 12; 14; 16; 24; 28; 33; 43; 53 mm. BT-FH Seal face V, U1, B, Q1 Stationary seat B, U1, Q1, V Rubber parts P, V, E, E2, P2 Construction material G Standard combination VBVGG BT-FH6 As BT-FH but with PTFE secondary seal elements instead of elasto mers. Mainly used in the chemical industry and for corrosive media. BT-FHC As BT-FH but with shorter installation length. (see l3c in the dimension table) BT-FH seal materials are also available with following approval specifications: KTW, W270, ACS, WRAS, NSF, FDA and DM174 (TIFQ) 14 BT-FH6 Seal face V Stationary seat B, U1 Rubber parts T Construction material G Standard combination VBTGG BT-FHC Seal face V, U1, B, Q1 Stationary seat B, U1, Q1, V Rubber parts V, E, P, E2, P2 Construction material G Standard combination VBVGG Operating range
BT-FH BT-FH6 I1 0.5 I3 (I3 C) 1 2 3a d6 H11 3 I6 R/L 5a d7 H8 5 3b d1 h6 d3 max. d4 min. 4 I4 I5 20 Item 1 2 3 3a 3b 4 5 5a Designation Seal face Stationary seat O-Ring O-Ring O-Ring Compression spring Collar Ring Dimensions (mm) d1 10 12 14 15 16 18 20 22 24 25 26 28 30 32 34 35 36 38 40 42 43 45 48 50 55 60 65 70 75 80 85 90 95 100 d3 20 22 25 29 29 33 33 38 38 40 40 46 46 46 56 56 56 63 63 63 63 69 69 76 76 84 89 94 100 105 115 120 126 130 d4 22 25 28 32 32 36 36 41 41 45 45 50 50 50 62 62 62 70 70 70 70 75 75 83 83 90 96 101 106 111 125 132 137 143 d6 14.0 16.5 19.0 21.0 21.0 25.0 25.0 30.0 30.0 33.0 33.0 38.0 38.0 38.0 45.0 45.0 45.0 52.0 52.0 52.0 52.0 57.0 57.0 64.0 64.0 72.0 77.0 82.0 87.0 92.0 98.0 105.0 110.0 114.0 d7 18.1 20.6 23.1 26.9 26.9 30.9 30.9 35.4 35.4 38.2 38.2 43.3 43.3 43.3 53.3 53.5 53.5 60.5 60.5 60.5 60.5 65.5 65.5 72.5 72.5 79.3 84.5 89.5 94.5 99.5 105.5 111.5 116.5 119.5 l1 25.5 27.5 33.0 34.0 35.0 38.0 38.0 38.0 40.0 41.5 41.5 45.0 46.0 46.0 59.5 59.5 59.5 59.5 59.5 59.5 59.5 62.5 62.5 66.5 68.5 72.5 74.5 74.5 79.5 81.5 85.5 88.5 88.5 98.5 l3 20 22 27 27 28 30 30 30 32 33 33 36 37 37 48 48 48 48 48 48 48 51 51 55 57 61 63 63 68 70 72 75 75 85 l4 5.5 5.5 6.0 7.0 7.0 8.0 8.0 8.0 8.0 8.5 8.5 9.0 9.0 9.0 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 13.5 13.5 13.5 13.5 l5 1.2 1.2 1.2 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 I6 3 3 3 4 4 4 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 I3C 15 18 22 22 23 24 25 25 27 27 27 29 30 30 39 39 39 39 39 39 41 41 41 45 47 49 51 51 57 59 59 62 62 75 15
Type BT-RN/RN.NU BT-RN/-RN.NU Single pusher type seal Unbalanced Conical spring Dependent on direction of rotation BT-RN Materials BT-RN represents the traditional pusher seal. This type of mechanical seal is easy to install, covers a wide range of applications and its reliability is proven by millions of units worldwide in operation. This is a convenient solution for the widest range of applications: for clean water as well as chemical media. Can be also supplied with certification according DM174 (TIFQ). BT-RN/-RN.NU Seal face F, G, F1 Stationary seat B Rubber parts P, V, E Construction materials G, F Standard combination F1BPGF1 BT-RN3 Seal faces made of brazed tungsten carbide which is suitable for media with intermediate corrosive and abrasive characteristics. BT-RN6 Variant of BT-RN with secondary seal elements in PTFE. This allows application for a wide range of media. BT-RN.NU/-RN3.NU/-RN6.NU As BT-RN/-RN3/-RN6, but with length l1N and dimensions according to EN 12756. 16 BT-RN3/-RN3.NU Seal face U Stationary seat U Rubber parts P, V, E Construction materials G, F, F1 Standard combination UUPGF BT-RN6/-RN6.NU Seal face G Stationary seat B Rubber parts T Construction material G Standard combination GBTGG Operating range Item 1 2 3 3a 4 5 5a A B Designation Seal face Seat O-Ring O-Ring Compression spring Collar Ring Sleeve (on request) Stationary seat with slot for radial pin (on request)
l 1N 0.5 BT-RN.NU I1 0.5 I4 4 5 d1 h6 R/L d4 min A 3a d7 H8 2 d6 H11 1 d1 h6 5 3 d3 d4 min 4 l5 l6 I6 3 1 2 3a R/L d7 H8 I5 l4 d6 H11 I3 I1 0.5 l3 d3 max BT-RN d8 B 20 20 5 I7 BT-RN3 / BT-RN3.NU BT-RN6 / BT-RN6.NU 5a Dimensions (mm) d1 6 8 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 28 30 32 33 34 35 36 38 40 42 43 44 45 48 50 55 60 65 70 75 80 85 90 95 100 110 d3 12 16 20 20 22 22 24 24 26 26 32 32 34 36 36 38 39 39 42 44 46 47 48 49 50 54 56 59 59 60 61 64 66 71 80 85 90 99 104 109 114 119 124 143 d4 16 20 22 24 24 26 26 31 31 31 36 36 36 41 41 41 45 45 50 50 50 60 60 60 60 68 68 68 68 72 72 72 80 80 87 92 97 102 107 113 120 130 136 150 d6 10.0 13.0 14.0 16.5 16.5 19.0 19.0 21.0 21.0 21.0 25.0 25.0 25.0 30.0 30.0 30.0 33.0 33.0 38.0 38.0 38.0 45.0 45.0 45.0 45.0 52.0 52.0 52.0 57.0 57.0 57.0 57.0 64.0 64.0 72.0 77.0 82.0 87.0 92.0 98.0 105.0 110.0 114.0 124.0 Dimensions (mm) d7 13.1 17.1 18.1 20.6 20.6 23.1 23.1 26.9 26.9 26.9 30.9 30.9 30.9 35.4 35.4 35.4 38.2 38.2 43.3 43.3 43.3 53.5 53.5 53.5 53.5 60.5 60.5 60.5 60.5 65.5 65.5 65.5 72.5 72.5 79.3 84.5 89.5 94.5 99.5 105.5 111.5 116.5 119.5 132.2 l1 19.5 20.5 20.5 23.5 23.5 28.0 28.0 29.0 30.0 30.0 32.0 33.0 33.0 33.0 35.0 35.0 35.5 35.5 38.0 39.0 39.0 50.5 50.5 50.5 50.5 50.5 50.5 50.5 52.5 52.5 52.5 52.5 56.5 58.5 60.5 62.5 62.5 68.5 70.5 72.5 75.5 75.5 88.5 92.5 l3 15 15 15 18 18 22 22 22 23 23 24 25 25 25 27 27 27 27 29 30 30 39 39 39 39 39 39 39 41 41 41 41 45 47 49 51 51 57 59 59 62 62 75 75 l4 4.5 5.5 5.5 5.5 5.5 6.0 6.0 7.0 7.0 7.0 8.0 8.0 8.0 8.0 8.0 8.0 8.5 8.5 9.0 9.0 9.0 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 13.5 13.5 13.5 13.5 17.5 l5 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 4.0 I6 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7 d1 10 12 14 16 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 58 60 63 65 68 70 75 80 85 90 95 100 d3 20 22 24 26 32 34 36 38 39 42 44 46 47 49 54 56 59 61 64 66 69 71 78 80 83 85 88 90 99 104 109 114 119 124 d4 22 24 26 28 34 36 38 40 41 44 46 48 49 51 58 60 63 65 68 70 73 75 83 85 88 90 93 95 104 109 114 119 124 129 d6 17 19 21 23 27 29 31 33 34 37 39 42 42 44 49 51 54 56 59 62 65 67 70 72 75 77 81 83 88 95 100 105 110 115 d7 21 23 25 27 33 35 37 39 40 43 45 48 48 50 56 58 61 63 66 70 73 75 78 80 83 85 90 92 97 105 110 115 120 125 d8 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 l1N 40 40 40 40 45 45 45 50 50 50 50 55 55 55 55 55 60 60 60 60 70 70 70 70 70 80 80 80 80 90 90 90 90 90 l1 22 25 29 30 34 35 35 37 37 39 40 40 49 49 55 55 60 60 60 60 70 70 70 70 70 80 80 80 80 90 90 90 90 90 l3 15 18 22 23 24 25 25 27 27 29 30 30 39 39 42 42 47 47 47 46 56 56 56 56 56 66 64 64 64 72 72 72 72 72 l4 7 7 7 7 10 10 10 10 10 10 10 10 10 10 13 13 13 13 13 14 14 14 14 14 14 14 16 16 16 18 18 18 18 18 l5 1.5 1.5 1.5 1.5 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3 3 3 3 3 I6 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 I7 8.5 8.5 8.5 8.5 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 BT-RN.NU,-RN3.NU,-RN6.NU. Dimensions and length l1N according to EN 12756. 17
Type BT-RN.NB BT-RN.NB Single pusher type seal Balanced Conical spring Dependent on direction of rotation BT-RN.NB Materials Represents like the BT-RN, the traditional pusher seal. Special feature of the BT-RN.NB is the balanced design for higher pressure range and clean water. Length and dimensions according to EN 12756. BT-RN.NB Seal face F, F1, G Stationary seat B Rubber parts P, E, V Construction materials G, F, F1 Standard combination F1BPGF1 BT-RN3.NB Seal faces made of brazed tungsten carbide which is suitable for media with intermediate corrosive and abrasive characteristics. 18 BT-RN3.NB Seal face U Stationary seat U Rubber parts P, E, V Construction materials G, F, F1 Standard combination UUPGF Operating range
BT-RN.NB BT-RN3.NB l1N 0.5 10 0.5 l1 * l3 1,6 l4 l5 R l6 H8 d7 d8 R/L d6 2 l2 3a h6 1 d1 d2 h6 d3 max. d4 min. 3 5 3 4 H11 * A B 20 5 Item 1 2 3 3a 4 5 A B Designation Seal face Stationary seat O-Ring O-Ring Compression spring Collar Sleeve (on request) Stationary seat with slot for radial pin (on request) l7 Dimensions (mm) d1 10 12 14 16 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 58 60 63 65 70 75 80 85 90 95 100 d2 14 16 18 20 22 24 26 28 30 33 35 38 38 40 43 45 48 50 53 55 58 60 63 65 68 70 75 80 85 90 95 100 105 d3 24 26 32 34 36 38 40 42 44 47 49 54 54 56 59 61 64 66 69 71 78 80 83 85 88 90 99 104 109 114 119 124 129 d4 26 28 34 36 38 40 42 44 46 49 51 58 58 60 63 65 68 70 73 75 83 85 88 90 93 95 104 109 114 119 124 129 134 d6 17 19 21 23 27 29 31 33 34 37 39 42 42 44 49 51 54 56 59 62 65 67 70 72 75 77 83 88 95 100 105 110 115 d7 21 23 25 27 33 35 37 39 40 43 45 48 48 50 56 58 61 63 66 70 73 75 78 80 83 85 92 97 105 110 115 120 125 d8 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 l1N 50 50 55 55 55 60 60 60 60 65 65 65 65 65 75 75 75 75 85 85 85 85 85 95 95 95 95 105 105 105 105 105 105 l1 50 50 46 47 51 53 53 60 60 65 65 65 65 65 75 75 75 75 85 85 85 85 85 95 95 95 95 105 105 105 105 105 105 I2 18 18 18 18 20 20 20 20 20 20 20 20 20 20 23 23 23 23 23 25 25 25 25 25 25 25 28 28 28 28 28 28 28 I3 43 43 39 40 41 43 43 50 50 55 55 55 55 55 62 62 62 62 72 71 71 71 71 81 81 81 79 89 87 87 87 87 87 l4 7 7 7 7 10 10 10 10 10 10 10 10 10 10 13 13 13 13 13 14 14 14 14 14 14 14 16 16 18 18 18 18 18 I5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 I6 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 I7 8.5 8.5 8.5 8.5 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 9.0 Dimensions and length l1N according to EN 12756 19
Type BT-C5 BT-C5 Single pusher type seal Unbalanced (KU) Balanced (KB) Multiple springs Independent of direction of rotation BT-C5.KU Materials The BT-C5.KU is available in many material combinations , and has therefore various application possibilities, especially in chemical applications. Torque transmission by set screws. Length according to EN12756. BT-C5.KU(KB) Seal face B2 Stationary seat V, Q1 Rubber parts P, V, E Construction material G Standard combination B2VPGG BT-C5.KB BT-C56.KU(KB) Seal face B2 Stationary seat V, Q1 Rubber parts T Construction material G Standard combination B2VTGG The balanced version of the BT-C5.KU. Suitable for a higher pressure range. Length according to EN 12756. BT-C56.KU(KB) Secondary seal elements in PTFE instead of elastomers. 20 Operating range Item 1 2 3 3a 4 5 5a 5b 5c B Designation Seal face Stationary seat O-Ring O-Ring Compression spring Collar Set screw Ring Locking ring Stationary seat with slot for radial pin (on request)
BT-C5.KB 0.5 I6 3a d8 4 5a 5 * 5b 3 5c 1 I2 2 .6 R1 3a d8 3 4 B B 20 20 5 5 I7 I7 BT-C56.KB BT-C56.KU Dimensions (mm) Dimensions (mm) d1 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 58 60 63 65 68 70 75 80 85 90 95 100 d3 34 36 38 39 42 44 46 47 49 54 56 59 61 64 66 69 71 78 80 83 85 88 90 99 104 109 114 119 124 d4 36 38 40 41 44 46 48 49 51 58 60 63 65 68 70 73 75 83 85 88 90 93 95 104 109 114 119 124 129 d7 H8 2 d2 h6 1 d3 max 5c d4 min 5b 3 * I4 I5 d7 H8 d1 h6 d3 max d4 min 5 I3 I6 10 I5 5a I1 K 0.5 I4 d6 H11 I3 d1 H6 I1K d6 H11 BT-C5.KU d6 29 31 33 34 37 39 42 42 44 49 51 54 56 59 62 65 67 70 72 75 77 81 83 88 95 100 105 110 115 d7 35 37 39 40 43 45 48 48 50 56 58 61 63 66 70 73 75 78 80 83 85 90 92 97 105 110 115 120 125 d8 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 BT-C5(56).KU. l1K according to EN 12756 (l1 KU) l1K 37.5 37.5 40.0 40.0 42.5 42.5 42.5 42.5 42.5 45.0 45.0 45.0 45.0 45.0 47.5 47.5 47.5 52.5 52.5 52.5 52.5 52.5 60.0 60.0 60.0 60.0 65.0 65.0 65.0 l1 34.0 34.0 37.0 37.0 40.0 40.0 40.0 40.0 40.0 43.0 43.0 43.0 43.0 43.0 47.5 47.5 47.5 52.5 52.5 52.5 52.5 52.5 60.0 60.0 60.0 60.0 65.0 65.0 65.0 l3 24.0 24.0 27.0 27.0 30.0 30.0 30.0 30.0 30.0 32.0 32.0 32.0 32.0 32.0 34.5 34.5 34.5 39.5 39.5 39.5 39.5 37.5 45.0 45.0 44.5 44.5 49.5 49.5 49.5 l4 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 10.0 11.0 11.0 11.0 11.0 11.0 13.0 13.0 13.0 13.0 13.0 13.0 13.0 15.0 15.0 15.0 15.5 15.5 15.5 15.5 15.5 I5 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 I6 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 I7 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 d1 18 20 22 24 25 28 30 32 33 35 38 40 43 45 48 50 53 55 58 60 63 65 70 75 80 85 90 95 100 d2 22 24 26 28 30 33 35 38 38 40 43 45 48 50 53 55 58 60 63 65 68 70 75 80 85 90 95 100 105 d3 36 38 40 42 44 47 49 54 54 56 59 61 64 66 69 71 78 80 83 85 88 90 99 104 109 114 119 124 129 d4 38 40 42 44 46 49 51 58 58 60 63 65 68 70 73 75 83 85
Ideal mechanical seal for the following applications: Domestic and garden pumps Whirlpool and swimming pool pumps Dishwasher pumps Submersible motors / pumps Water pumps Hot BT-urrgmTrgaanMeTcghil ShlaTegla BTs rlal hgR
RTU APPROACH TO PURSUING EXCELLENCE The principles defined in the EFQM Excellence Model and various higher education and quality standards are horizontally integrated with the stages of RTU Excellence Approach. These principles characterize the approach to pursuing excellence and sustainable development that organizations adopt5 (see Fig. 3).
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Ramsay Excellence Awards 2020 Offi cial Welcome ORDER OF PRESENTATION Preceptor of the Year Award Graduate Award of Excellence Chief Nurse Address Excellence in Leadership Award People Caring for People Award Poster Comp Winner Announcement Connect, View & Share A recording of the Excellence
the world. Excellence in research transforms our vision of reality. Excellence in the arts transforms the observer and their emotions. Excellence in education transforms both the student and the instructor. But the pursuit of excellence requires determination and persistence." He continued, "May this pursuit of excellence continue to .
A center for process excellence Successful businesses are in constant pursuit of process excellence. Establishing a center of process excellence can ensure that this goal is core to your organization's culture and its everyday running. The role of the center for process excellence is twofold: To establish a framework to ensure
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Coronavirus (COVID-19) risk assessment 11 Hazard Risk rating Control measures Additional controls Residual risk Persons at risk Non-essential contractors were stood down (where the service was not required at this time) to reduce possible transmission of the virus. All contractors that are providing a service are contacted on a daily basis to ensure they adhere to hygiene requirements .
