@DUCTNEWS f
Owamat and Bekosplit separators
Safe Lock quick.closure
Beko Condensate Systems Ltd h a s introduced two new products to t h e UK m a r k e t in t h e field of compressor condensate m a n a g e m e n t . These are a n addition to its O w a m a t range of oil/water separators, and a new Bekosplit unit designed to s e p a r a t e heavily emulsified condensate. The new Owamat 2 is well suited for compressors u p to 15 h p a n d will therefore offer advantages to users in fields o t h e r t h a n t h o s e associated with t h e larger stablemates, Owamat 4 a n d 6. This latest addition to t h e r a n g e will be of equal import a n c e to small m a n u f a c t u r i n g companies, garages a n d o t h e r users. It ensures t h a t t h e oil c o n t e n t of compressor con-
The new Safe Lock System from ISP (Belgium) NV h a s been designed to satisfy increasing d e m a n d for easy-tooperate quick change-out filter systems. Bag filter systems have for more t h a n 20 years b e e n r e c o g n i s e d as m a j o r w o r k h o r s e s in t h e efficient f i l t r a t i o n of liquids in t h e chemical a n d general processing industries. T h e Safe Lock S y s t e m w o r k s like a c o n v e n t i o n a l safe door. As t h e h a n d l e is t u r n e d in a clockwise direction, six stainless-steel feet close down on t h e pressure vessel. Once t h e h a n d l e is fully depressed in t h e closed position, t h e vessel is sealed a n d operational. In t h e s t a n d a r d version t h e m a x i m u m pressure r a t i n g is 10 bar, b u t modified units can be built u p to 400 b a r in mild-steel, stainless-steel, Hastelloy a n d titanium. In a d d i t i o n to t h e quick opening a n d closing feature, the system incorporates a lifting device which enables
d e n s a t e is safely collected, with only t h e w a t e r element drained away, ensuring t h a t compressor o p e r a t o r s comply w i t h t h e i r legal obligations relating to discharge to drain. The B e k o s p l i t h a s b e e n designed to s e p a r a t e t h e oil a n d w a t e r e l e m e n t s of highly emulsified c o n d e n s a t e which is p r o d u c e d where t h e r e are special c o n d i t i o n s s u c h as high final compression temperatures, t h e use of poorly demulsifiable oils, t h e presence of emulsion expediting oils in t h e air intake, or w h e n higher c o n d e n s a t e q u a n t i t i e s exist, such as in t h e summer. While to date t h e u n i t h a s been of p a r t i c u l a r benefit to o p e r a t o r s of large compressor installations, t h e i n t r o d u c t i o n of B e k o s p l i t 3 will b r o a d e n t h e r a n g e of potential users, since it h a s a capacity of 50 l i t r e s / h r a n d can accomm o d a t e a maxim u m compressor o u t p u t of 40 m3/ min. Beko Condensate Systems Ltd, Unit 6, 82 S h e r w o o d Road, Asten Fields Industrial Estate, Bromsgrove, Worcs. B60 3DR, UK. Tel: + 44 (0) 527 575778.
Dustcheck halves space demands A r a n g e of h i g h - d u t y d u s t collectors t h a t halve t h e floor space required for a given filtration rating has been i n t r o d u c e d by Dustcheck Limited. The space saving s t e m s from a configuration of cartridge e l e m e n t s installed one a b o v e t h e o t h e r vertically, instead of side-by-side. The c o m p a n y claims t h a t typically t h i s a r r a n g e m e n t enables 10,000m 3 of air to be filtered at 1 m a / m i n by a dust collector 2410 m m wide, 1550 m m deep a n d 4000 m m high. Users can either increase filtration capacity of a fixed site or reduce the space needed for a fixed capacity. D u s t c h e c k ' s new SDV/W series c o n t a i n s t e n singlea n d double-cell models r a t e d for duties from 2700 m a / h r 602
(with a filter a r e a of 45 m 2) to 23,040 m 3 / h r (with a filter a r e a of 384 m2). Both lownoise a n d s t a n d a r d versions are available. All are selfcontained units complete with filter elements, cleaning systems, fan, silencer, a n d collection bin. They can be provided factory assembled or in knocked-down form for site assembly by the user, a f u r t h e r saving o n first cost. The filtration system incorporates t h e company's latest cartridge filter elements, which have re-usable m e t a l components and simple t h r e e - p o i n t location for quick r e p l a c e m e n t a n d sealing. Installed in c o m b i n a t i o n s of 7.5, 10, 13 a n d 16 m 2 filter areas, t h e elements can be provided with various media,
t h e vessel to be o p e n e d a n d closed with t h e m i n i m u m of effort. T h e d e s i g n of t h i s s y s t e m m e a n s t h a t n o Orings are necessary to seal t h e vessel, as t h e s p e c i a l Sentinel bag collars provide a full p e r m a n e n t seal. ISP (Belgium) N~, Hoogkamenstraat 42, Sint-Niklaas, Belgium. Tel: + 32 3 766 2550, fax: + 32 3 766 1377.
Effective pre-filtration for coalescers A r a n g e of filter cartridges for e x t e n d i n g t h e life of liquid/ liquid coalescer cartridges h a s been developed by Alan C o b h a m E n g i n e e r i n g Ltd. They have been designed to provide high-efficiency particulate removal u p s t r e a m of a coalescer cartridge. Unlike most particulate filter e l e m e n t s , t h i s r a n g e h a s been developed in parallel with t h e range of coalescer cartridges available from t h e company. Their relative perf o r m a n c e is t h e r e f o r e ba-
from r e s i n - i m p r e g n a t e d micronic paper, to polypropylene a n d polyester, with antistatic a n d high-release treatm e n t to suit t h e application. The elements can be cleaned by two m e t h o d s -r o t a t i n g wing a n d r e v e r s e pulse. The r o t a t i n g wing provides off-stream reverse-air flushing a t only 3 b a r pressure. It is o p e r a t e d automatically by a sequential controller, adjustable for pulse d u r a t i o n a n d interval between pulses. In t h e o t h e r m e t h o d , a
l a n c e d t o give t h e m o s t effective a n d economical comb i n a t i o n of efficiency a n d endurance. The cartridges are availa b l e in a c o m b i n a t i o n of different physical sizes a n d filtration ratings to suit coalescer performance, as well as a range of materials to e n s u r e compatibility. Alan Cobham Engineering Ltd, Holland Way, Blandford Forum, Dorset DT11 7BH, UK. Tel: +44 (0)258 451441, fax: +44 (0)258 451414.
reverse j e t of compressed air a t between 3 a n d 6 b a r automatically cleans t h e e l e m e n t s on a c o n t i n u o u s cycle. The j e t is pulsed from t h e clean side by a similar controller, also a d j u s t a b l e for d u r a t i o n a n d interval. The SDV/W series is fully m o d u l a r with filter areas up to 192 m 2 in a single-cell body a n d areas u p to 384 m 2 in a double-cell unit. Dustcheck Ltd, Unit 2, China Street, Fenton, Stoke-on-Trent ST4 3NJ, UK. Tel: + 44 (0)782 599454.
November 1993
Filtration & Separation