ISSN 1350-4789
An International Newsletter
April 1998
Number
52
Sealing Technology News
I
• • • •
Freudenberg-NOK r e t h i n k s oil seal activities Federal Mogul bid for d o m i n a n c e in auto-sealing Flowserve division a i m s to increase reliability 1997 r es u l t s boost s p e c u l a t i o n over J o h n Crane acquisitions • New vice p r e s i d e n t a t Armstrong
Static ~
Freudenberg-NOK r e t h i n k s oil seal activities
3
• The end of radial buckling in spiral w o u n d gaskets? • Controlled leakage in engine valve s t e a m sealing
F r e u d e n b e r g - N O K is to r e s t r u c t u r e its m a n u f a c t u r i n g a n d p r o d u c t i o n facilities by c r e a t i n g a s e p a r a t e C o m p o n e n t s Division, b a s e d in New H a m p s h i r e , USA. Th e c o m p a n y , w h i c h s u p p l i e s total s e a l i n g p a c k a g e s for a u t o m o t i v e engines, is to r e f o c u s its Bristol, New H a m p s h i r e p l a n t for oil seal m a n u f a c t u r i n g only a n d will t r a n s f e r v a r i o u s n o n - o i l seal p r o d u c t i o n activities to o t h e r facilities. T h e Bristol p l a n t ' s r u b b e r mixing, s p r i n g m a k i n g a n d m e t a l s t a m p i n g activities will be m o v e d to t h e n e w C o m p o n e n t s Division, w h i c h will provide c o m p o n e n t s u p p o r t for t h e c o m p a n y ' s o t h e r m a n u f a c t u r i n g facilities. F r e u d e n b e r g - N O K s a y s t h a t t h e r e s t r u c t u r i n g is p a r t of its ' G e t Big by S t a y i n g S m a l l ' m a n a g e m e n t philosophy, developing focused factories which are d e d i c a t e d to fewer p r o c e s s e s a n d p r o d u c t s . As p a r t of t h i s n e w initiative, F r e u d e n b e r g - N O K h a s n a m e d Mr William T o b i n as p r e s i d e n t of t h e n e w C o m p o n e n t s Division. B a s e d at t h e c o m p a n y ' s N o r t h field facility h e will a s s i s t w i t h t h e t r a n s f e r , a n d then manage the components business.
Patents
Contact: Freudenberg-NOK, 4 7 6 9 0 East A n c h o r Ct, P l y m o u t h , MI 4 8 1 7 0 , USA. Tel." +1 3 1 3 4 5 1 0 0 2 0 ; Fax: +1 3 1 3 4 5 1 0 1 2 5 .
• • • •
Flange r e s e a r c h will c u t p la n t c o n s t r u c t i o n costs G a s k e t installation booklet u p d a t e d F o a m s enhance semiconductor g a s k e t options Perfluoroelastomer expected to raise t e m p e r a t u r e s
Dynamic • • • • • • • •
sealing
Features
• • • •
5
Flexible seal stops heavyweight cylinder leakage Graphite p a c k i n g keeps cool w it h o u t flushing P u m p c o m p a n i e s s t a n d a r d i z e on m e c h a n i c a l seals Innovative 'plug & play' gas seal l a u n c h e d Double seal designed for polymer services Packing seals w o r n a n d wobbly shafts Hydraulic fluids tested for seal compatibility Glow ring confirms quality of m e c h a n i c a l seal
9
13
Fluid c h a m b e r r e d u c e s flush leakage Dual seal c o n t a i n s b o t h v a c u u m a n d p r e s s u r e Tools allow easier m a i n t e n a n c e of seals T h i n n e r axle seal copes with cornering
Webwatch
15
Events Calendar
16
I ( I . S I ~ V 1 I']R ..\I)VAN('I:~I) ll,ff '1 I N ( } I I )( ',Y
Federal Mogul bids for d o m i n a n c e in auto-sealing F e d e r a l - M o g u l h a s n o w c o m p l e t e d t h e a c q u i s i t i o n of Fel-Pro, a n d sat i sf i ed all of t h e c o n d i t i o n s r e l a t i n g to t h e a c q u i s i t i o n of T&N. T h e Fel-Pro t r a n s a c t i o n i n v o l v e d U S $ 2 2 5 million in c o m m o n s t o c k a n d U S $ 4 9 5 m i l l i o n in c a s h . F e d e r a l - M o g u l b e l i e v e s t h a t t h e c l o s u r e of t h e two d e a l s gives it t h e d esi g n , m a n u f a c t u r i n g a n d
Copyright © 1998 Elsevier Science Ltd, England/98/$19.00 per item.
No part of this publication inay be reproduced, stored in a retrieval system, or transmitted by any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the publishers. (Readers in the USA. please see special regulations listed on back cover.)