Gate Rubber Seals CONTENTS

Transcription

1 CONTENTS 1- USEFUL INFORMATION / WARRANTY 2- TECHNICAL ESPECIFICATIONS 3- J SEALS 4- CENTER BULB SEALS 5- DOUBLE-BULB SEALS 6- SPECIAL SEALS 7- SIDE SEALS 8- RECTANGULAR SEALS 9- SEALS WITH CHAMFER OR RADIUS 10- CORNER SEALS 11- FRAMES WITH VULCANIZED SPLICES 12- FASTENING WASHERS 13- VALVE SEALS / SHIMS / PADS 14- TECHNICAL BULLETINS

2 Useful information / Warranty 1 FOR DESIGNERS FOR PURCHASERS FOR USERS WARRANTY

3 Useful information FOR DESIGNERS 1) Our SBR composite seals feature excellent mechanical properties, meeting the requirement to withstand ozone attack and featuring better water absorption characteristics than those provided by polychloroprene compounds. The use of polychloroprene specification should be restricted to special conditions: a) Regions with high U.V. rays incidence and environments with high ozone concentration. b) The effect of environmental aggressive factors, such as certain chemicals, not usually occurring in clean river waters (chemicals for instances). 2) In some cases, not even SBR or CR will be adequate to the environment where gates are installed (for instance, radiations or an acid medium). Our technicians will indicate the proper elastomer for each specific case. 3) Depending on project requirements, seal hardness properties other than 50/60 Shore A and 60/70 Shore A hardness may be required above or below standardized values.

4 4) Refer to catalog and try to adapt your requirements to one of the existing profiles. In the event of minor changes having to be introduced in a given shape, please contact our technicians. This is highly recommended as tooling, in addition to high production costs will demand a long manufacturing period. 5) Check that the selected shape is provided with the corresponding corner (not all of them are). 6) Assess the need for using corner seals, or whether they could be replaced with vulcanized splices at 45º. 7) Please refer to us regarding seals coated with a PTFE film, as not all shapes in our catalog could be coated. 8) Pleases contact our technicians to request the development and testing of non-existing shapes (see our bulletins). 9) Our seals are manufactured by the continuous molding process and, therefore, will feature excellent mechanical and dimensional characteristics, with minimum variations and with smooth surfaces. Additionally, this process enables PTFE coatings to be applied.

5 Technical Specifications 2 Typical Specifications for SBR and CR Elastomers Typical PTFE Fil Specifications

6 FOR PURCHASERS Our seals are made to order only and, therefore, please make sure your orders will be placed with due advance notice to avoid delaying your projects. In order to expedite our reply to your quotation, please mention the code number part or the dimensions of your selected shape, the type of rubber (SBR, CR, or others), the required hardness (50/60, 60/70, or others) and the span size. Seals are always supplied with some excess length to enable them to be adapted during assembly. FOR USERS 1) Upon delivery of our seals to your premises, you will have to remove them from their packaging and have them stored in a sheltered place, away from direct sunlight, heat and moisture. Ideally, our seals should be spread out for storage but, should this not be possible, make sure the bending radius will be as large as possible less coiling during storage. Nothing should be piled on top of our seals. 2) PTFE-coated seals should be carefully handled, never bending them over in the direction of coating as this will lead to film wrinkling or peeling. (see handling instructions).

7 3) The use of our metal/rubber washers is recommended, particularly whem installing sluice gate seals. 4) Our technicians will be available to assist you from the design stage up to the maintenance of your sluice gates. If so requested, we will be pleased to visit the power station to provide on-site assistance and to help solving possible problems. WARRANTY Our sponsor was awarded ISO 9001:2000 certification by Bureau Veritas. Our seals are delivered together with a certificate of the tests performed on the composite used. Provided adequate conditions of transportation, handling and storage are complied with, we will guarantee our seals for a period of 3 years counted from the date they are shipped from our facilities.

8 Typical Specifications for SBR and CR Elastomers Original properties: Durometer Hardness Shore A (ASTM D 2240), Points Tensile Strength (ASTM D 412), MPa (min.) Ultimate Elongation (ASMT D 412), % (min.) Compression set: (ASTM D 395-B) (22 h/70º C) Residual Distortion, % (max.) Accelerated aging in air oven (ASTM D 573) (70 h/70º C) Durometer Hardness Shore A Variation, Points (max.) Ultimate Tensile Strength Variation, % (max.) Water resistance: (ASTM D 471) (70 h/70º C) Weight Variation, % (max.) Ozone resistance: (ASTM D 1171) (72 h / 40º C / 50 mpa) Surface Conditions SBR CR 50/60 60/70 50/60 60/ % 30% 30% 30% ± ± ± ± No No No No cracking cracking cracking cracking Notes: 1. Test according to ASTM (American Society for Testing and Materials) standards.

9 2. For seals not meeting the afore mentioned standard (e.g., other hardness ranges, other types of elastomers, etc.) please refer to our Technical Dept. for a new specification to be established. Typical PTFE Film Specifications Description PTFE film with 15% of fiber glass, thickness 0,8 or 1,5 mm and green color. TEST VALUE METHOD Tensile Strength (min.) 13.7 MPa / 2000 psi ASTM D 638 Ultimate Elogation (min.) 250% ASTM D 638 Typical specifications for rubber / PTFE composite: - To be carried out acoording to ASTM D-413 standard - Load of 13,5 kgf per 25 mm cating - Tensile test machine at 300 mm/min PTFE bond strength test (on test plece: - To be carried out according to ASTM D 413 standard - Separating of 25 mm film - Minimum separating load: 13,5 kgf External Aspect Seals shall present uniform surfaces, free from defects capable of jeopardizing the sealing function.

10 Splices shall be flawless, with a slight unlevelness being however admissible between joined shapes, due to joint rubber contraction. Tolerance / Dimensional Check Tolerances in the cross section dimensions of section shapes and seal frame front end shall comply with ISO 3302, Class M3 (that superseded DIN 7715, Part 2, Class M3 standard). The PTFE film shall present in the splice area a spacing to each other from 3 to 10 min; in that region, the film could show a slight unlevelness relative to the section shape surface. Customers are advised to refer to PRODEPLASTICOS for the maximum unlevelness values in splices and joined section shapes.

11 J Seals 3 P - 01 P P 01-2 P - 02 P - 04 P 04-1 P 18

12 P - 18 P-18 L H R E R1 A 156,

13 J Seals P 02 CHAMFERED J SEAL P-02 L D E R C b x45º c x45º SPECIAL J SEALS P 04 P-04 L L1 L2 H H1 H2 D E R R R1 R2 a º

14 P 04-1 P-04-1 L L1 L2 H H1 H2 D E R R1 a B C P 01 J SEAL P-01 L D E R P-01 L D E R a l a m a n a o a p a q b r b s c t d v e x e x f y

15 f w g z h z i z j z k P-01-1 J SEAL HOLLOW BULB P-01-1 L D E R D1 P-01-1 L D E R D1 a j a k d p e q g w i z

16 P-01-2 J SEAL WITH SHIMS P-01-2 L L1 D E E1 R a d z

17 Double-Bulb Seals 5 P 29 P 29 1 P 29 2 P 29 3

18 P-29 P-29 L D D1 E R R1 a b c d e P-29-1 P-29-1 L L1 D E R a

19 P-29-2 P-29-2 L L1 D E R a P-29-3 P-29-3 L L1 L2 D D1 E E1 R R1 C a X45º

20 Center Bulb Seals 4 P 08 P 08 1

21 P-08 P-08 L D E R a d e f g h i j k P-08-1 P-08-1 L L1 L2 D D1 E E1 R R1 a x45º

22 Side Seals 7 P - 03 P 03-1 P 17 P 20 P 21 P 22 P 28 P 66

23 P-03 P-03 L L1 L2 L3 E H H1 H2 R R1 R2 R3 a R4 A A1 A2 A3 5 13º 7º 7º 9º P-03-1 P-03 L L1 L2 L3 E H H1 H2 R R1 R2 A a º

24 P-17 P-17 L L1 E E1 E2 R R1 A A1 a º 45º b º 15º P-20 P-20 L D E H A a º

25 P-21 P-21 L L1 E R A a º P-22 P-22 L L1 E A a º

26 P-28 P-28 L L1 L2 E E1 H H1 R E1 R2 a b c d R3 R4 A º º º º

27 P-66 P-66 L L1 L2 D E R R1 R2 A H a º 55 b º 55

28 TECHNICAL BULLETINS The following technical bulletins will be mailed upon request to our sales sector. Should you be interested, please register to receive future bulletins. 1- DEFLECTION: J TYPE SEAL R-01 s. 2- SEAL EXPOSURE TO INCLIMENT WEATHER. 3- TECHNICAL SPECIFICATION FOR RUBBER PRODUCTS. 4- GATE SEALS TOLERANCES. 5- UNLEVEL CONTROL ON GATES SEALS. 6- GATE SEALS CLADDING WITH PTFE. 7- COMPARISON: EXTRUDED X MOLDED SEALS. 8- DEFLECTION: J TYPE SEAL R-01 s WITH RUBBER SHIMS. 9- R-14 a COMPRESSION. 10- DURABILITY OF SBR SEALS. 11- USEFUL LIFE OF PTFE CLAD SEALS. 12- SEALS HANDLING, TRANSPORT AND STORAGE. 13- METAL-RUBBER WASHERS FOR SEAL FIXING.

29 Technical Bulletins 14 TECHNICAL BULLETINS

30