- Email: [email protected]
Self-priming pumps suited to hygienic applications
EQUIPMENT NEWS
a n d Technology within the materials research programme (MATFO). Power s t a t i o n p u m p s f e a t u r i n g t h e s e a d v a n c e s are expected to be l a u n c h e d early in 1997.
Contact: KSB Aktiengesellschaft, D-67225 Frankenthal, Germany. Tel:-I-49 6233 862492; Fax: + 4 9 6233 863456.
Plain bearings made from fibrereinforced ceramics improve economic efficiency of high-performance pumps.
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High-tech ceramics for highperformance pumps
mics is significantly reduced. In addition, the new m a t e r i a l is characterised by s u p e r i o r resist a n c e to t h e r m a l shocks. This m a k e s the c o m p o u n d m a t e r i a l s u i t a b l e for heavily s t r a i n e d p u m p bearings lubriThe use of ceramics in power cated by p u m p e d water. The s t a t i o n p u m p b e a r i n g s which m a j o r a d v a n t a g e s offered by m u s t cope with heavy loads, will p r o d u c t - l u b r i c a t e d p u m p s are aid the d e v e l o p m e n t of energy- r e d u c e d overall l e n g t h s a n d hence more c o m p a c t p u m p saving high-performance p u m p s , according to KSB. Since designs. Operators benefit from this ceramic m a t e r i a l has a limited concept in two ways. Firstly, in stability, ceramic b e a r i n g s could previously only be used in low t e r m s of i n v e s t m e n t cost, since a n d m e d i u m p u m p p e r f o r m a n c e e x t e r n a l p i p i n g for l u b r i c a t i n g r a n g e s . Here p l a i n b e a r i n g s , oil s u p p l y a n d c o n t r o l a n d above all those of m o n o l i t h i c m o n i t o r i n g e q u i p m e n t are no silicon carbide, have paved the longer required a n d secondly, way for leakfree p u m p s in the because the new bearings rechemical industry. A new con- quire n e i t h e r m a i n t e n a n c e n o r cept f e a t u r i n g fibre-reinforced cooling water. The project was subsidised ceramics now increases these bearings' a p p l i c a t i o n range to by the G e r m a n Federal Ministry i n c l u d e p u m p i n p u t power of u p of Education, Science, Research to 3000 kW. The m a t e r i a l was developed in a j o i n t project between MAN Technologie AG A u g s b u r g a n d KSB, which was concluded in mid-1996 after a d e v e l o p m e n t period of 3 1A years. The project was a i m e d at t r a n s f e r r i n g the m a t e r i a l s technology MAN had developed for the space industry to m e c h a n i c a l e n g i n e e r i n g applications. The new m a t e r i a l c o n t a i n s ceramic fibres e m b e d d e d in a ceramic matrix. This fibre structure greatly improves the material p r o p e r t i e s as c o m p a r e d to conventional ceramics. The e l o n g a t i o n at fracture is t e n times higher, which m e a n s t h a t CSF-AS pumps have the mirror the b r i t t l e n e s s typical of cera- duties.
WORLD PUMPS SEPTEMBER 1996
Self-priming pumps suited to hygienic applications
A new range of quick-strip selfp r i m i n g p u m p s which are particularly suited to h a n d l i n g liq u i d s e n c o u n t e r e d i n food, d r i n k a n d p h a r m a c e u t i c a l applications, has been i n t r o d u c e d by P u m p Engineering. The CSF-AS series of side c h a n n e l centrifugal p u m p s incorporates the i m p o r t a n t features associated with hygienic applications such as sturdy construction in 316L AISI stainless steel for all wetted parts, smooth m i r r o r polish finishing of all surfaces a n d t h e facility for quick and simple dismantling. These p u m p s , which can deliver flow rates u p to 55 m3/h at p r e s s u r e s u p to 6 bar, are also capable of h a n d l i n g liquids cont a i n i n g air b u b b l e s or foam. This m e a n s the p u m p can be u s e d to p u r g e p r o c e s s l i n e s w i t h o u t being affected by the
finish required for hygienic
EQUIPMENT NEWS
O'
Flexible shafts from Orbit's new range being inspected prior to assembly. p r o b l e m s of air locks. D e p e n d i n g on t h e application1, t h e p u m p can be s u p p l i e d w i t h an i n t e r n a l or e x t e r n a l single mechanical seal or flushed d o u b l e m e c h a n i c a l seal for h i g h - t e m p e r a t u r e liquids or t h o s e with a t e n d e n c y to crystallise. E l a s t o m e r s are available in a choice of Viton, EPDM, silicon or VI'FE.
Contact: Pump Engineering Ltd, Riverside Estate, Littlehampton, West Sussex BN17 5DF, UK. Tel: + 4 4 1903 730900; Fax: + 4 4 1903 730234. I
F l e x i b l e shafts don't n e e d universal couplings Orbit P u m p M a n u f a c t u r i n g h a s i n t r o d u c e d a r an g e of industrial flexible-shaft helical r o t o r pumps for high pressure appl i c a t i o n s . The new models, l a u n c h e d on the back of the 'B' and 'D' ranges, will c o m p l e m e n t the s t a n d a r d universal-joint Orbit p u m p s in specific segments of the industrial and mining markets. The flexible shafts in t h e new p u m p s a b s o r b e c c e n t r i c helical rotor movement without the need for u n i v er s al couplings.
Orbit P u m p s has m a d e early sales into mine de-watering, reverse o s m o s i s a n d spray-drying applications. Design f e a t u r e s of t h e flexible-shaft p u m p s include good suction c h a r a c t e r i s t i c s an d t h e ability to h a n d l e liquids of high viscosities. The p u m p s are available in m o s t m a t e r i a l s of c o n s t r u c t i o n w i t h t h e flexible shaft specially c o a t e d for h i g h p e r f o r m a n c e u n d e r a r d u o u s conditions.
o p e r a t e s in c o n j u n c t i o n with a positive sealing float allowing dry p r i m e operation. In a d d i t i o n to a c o n t i n u o u s d r y - r u n c a p a b i l i t y , all RediPrime m o d e l s include Cornell's Cycloseal shaft sealing design. A d i s h e d b a c k p l a t e works w i t h t h e i m p e l l e r b a c k v a n e s to r e d u c e p r e s s u r e an d w e a r a r o u n d t h e seal a r e a of t h e p u m p a n d increase seal life w i t h o u t t h e n e e d for v e n t i n g or e x p e n s i v e w a t e r flush, a n o t o r i o u s prob l e m in t h e s e ap p l i cat i o n s. T h e R e d i - P r i m e r a n g e in cludes all Cornell's solids h an d ling p u m p u n i t s with sizes from 100 m m to 300 m m with flows up to 1000 m 3 / h an d h e a d s up to 70 m. The p u m p s are suitable f o r e i t h e r p o r t a b l e or m o r e p e r m a n e n t a p p l i c a t i o n s in t h e m u n i c i p a l m a r k e t such as p u m p s t a t i o n s an d sewage works. In addition, t h e Redi-Prime can be o p e r a t e d in c o n j u n c t i o n with a t e l e m e t r y system. With t h e ability to p a s s 3 in or l a r g e r solids, t h e R e d i - p r i m e range has a v ar i et y of uses in the municipal, mining, con-
Contact: Orbit Pumps Manufacturing, PO Box 18127, Rand Airport, 1419, South Africa. Tel: +29 11 4 0 3 3 3 1 3 ; Fax: + 29 11 403 1678.
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Solids h a n d l i n g p u m p features dry self-priming
Cornell P u m p h a s d e s i g n e d a new dry p r i m i n g solids h a n d l i n g pump which combines high p r e s s u r e a n d high flows with t h e benefits of t h e efficiency an d low energy c o n s u m p t i o n of a dry p r i m e unit. A f e a t u r e of Redi-Prime's dry p r i m e capability is t h e elimination of t h e n e e d to fill t h e p u m p before using it, ideal for sewage bypass operations. The diap h r a g m v a c u u m p r i m i n g sTstem
Redi-Prime dry self-priming pump from Cornell Pump Company.
WORLD PUMPS SEPTEMBER 1996
a n d Technology within the materials research programme (MATFO). Power s t a t i o n p u m p s f e a t u r i n g t h e s e a d v a n c e s are expected to be l a u n c h e d early in 1997.
Contact: KSB Aktiengesellschaft, D-67225 Frankenthal, Germany. Tel:-I-49 6233 862492; Fax: + 4 9 6233 863456.
Plain bearings made from fibrereinforced ceramics improve economic efficiency of high-performance pumps.
[]
High-tech ceramics for highperformance pumps
mics is significantly reduced. In addition, the new m a t e r i a l is characterised by s u p e r i o r resist a n c e to t h e r m a l shocks. This m a k e s the c o m p o u n d m a t e r i a l s u i t a b l e for heavily s t r a i n e d p u m p bearings lubriThe use of ceramics in power cated by p u m p e d water. The s t a t i o n p u m p b e a r i n g s which m a j o r a d v a n t a g e s offered by m u s t cope with heavy loads, will p r o d u c t - l u b r i c a t e d p u m p s are aid the d e v e l o p m e n t of energy- r e d u c e d overall l e n g t h s a n d hence more c o m p a c t p u m p saving high-performance p u m p s , according to KSB. Since designs. Operators benefit from this ceramic m a t e r i a l has a limited concept in two ways. Firstly, in stability, ceramic b e a r i n g s could previously only be used in low t e r m s of i n v e s t m e n t cost, since a n d m e d i u m p u m p p e r f o r m a n c e e x t e r n a l p i p i n g for l u b r i c a t i n g r a n g e s . Here p l a i n b e a r i n g s , oil s u p p l y a n d c o n t r o l a n d above all those of m o n o l i t h i c m o n i t o r i n g e q u i p m e n t are no silicon carbide, have paved the longer required a n d secondly, way for leakfree p u m p s in the because the new bearings rechemical industry. A new con- quire n e i t h e r m a i n t e n a n c e n o r cept f e a t u r i n g fibre-reinforced cooling water. The project was subsidised ceramics now increases these bearings' a p p l i c a t i o n range to by the G e r m a n Federal Ministry i n c l u d e p u m p i n p u t power of u p of Education, Science, Research to 3000 kW. The m a t e r i a l was developed in a j o i n t project between MAN Technologie AG A u g s b u r g a n d KSB, which was concluded in mid-1996 after a d e v e l o p m e n t period of 3 1A years. The project was a i m e d at t r a n s f e r r i n g the m a t e r i a l s technology MAN had developed for the space industry to m e c h a n i c a l e n g i n e e r i n g applications. The new m a t e r i a l c o n t a i n s ceramic fibres e m b e d d e d in a ceramic matrix. This fibre structure greatly improves the material p r o p e r t i e s as c o m p a r e d to conventional ceramics. The e l o n g a t i o n at fracture is t e n times higher, which m e a n s t h a t CSF-AS pumps have the mirror the b r i t t l e n e s s typical of cera- duties.
WORLD PUMPS SEPTEMBER 1996
Self-priming pumps suited to hygienic applications
A new range of quick-strip selfp r i m i n g p u m p s which are particularly suited to h a n d l i n g liq u i d s e n c o u n t e r e d i n food, d r i n k a n d p h a r m a c e u t i c a l applications, has been i n t r o d u c e d by P u m p Engineering. The CSF-AS series of side c h a n n e l centrifugal p u m p s incorporates the i m p o r t a n t features associated with hygienic applications such as sturdy construction in 316L AISI stainless steel for all wetted parts, smooth m i r r o r polish finishing of all surfaces a n d t h e facility for quick and simple dismantling. These p u m p s , which can deliver flow rates u p to 55 m3/h at p r e s s u r e s u p to 6 bar, are also capable of h a n d l i n g liquids cont a i n i n g air b u b b l e s or foam. This m e a n s the p u m p can be u s e d to p u r g e p r o c e s s l i n e s w i t h o u t being affected by the
finish required for hygienic
EQUIPMENT NEWS
O'
Flexible shafts from Orbit's new range being inspected prior to assembly. p r o b l e m s of air locks. D e p e n d i n g on t h e application1, t h e p u m p can be s u p p l i e d w i t h an i n t e r n a l or e x t e r n a l single mechanical seal or flushed d o u b l e m e c h a n i c a l seal for h i g h - t e m p e r a t u r e liquids or t h o s e with a t e n d e n c y to crystallise. E l a s t o m e r s are available in a choice of Viton, EPDM, silicon or VI'FE.
Contact: Pump Engineering Ltd, Riverside Estate, Littlehampton, West Sussex BN17 5DF, UK. Tel: + 4 4 1903 730900; Fax: + 4 4 1903 730234. I
F l e x i b l e shafts don't n e e d universal couplings Orbit P u m p M a n u f a c t u r i n g h a s i n t r o d u c e d a r an g e of industrial flexible-shaft helical r o t o r pumps for high pressure appl i c a t i o n s . The new models, l a u n c h e d on the back of the 'B' and 'D' ranges, will c o m p l e m e n t the s t a n d a r d universal-joint Orbit p u m p s in specific segments of the industrial and mining markets. The flexible shafts in t h e new p u m p s a b s o r b e c c e n t r i c helical rotor movement without the need for u n i v er s al couplings.
Orbit P u m p s has m a d e early sales into mine de-watering, reverse o s m o s i s a n d spray-drying applications. Design f e a t u r e s of t h e flexible-shaft p u m p s include good suction c h a r a c t e r i s t i c s an d t h e ability to h a n d l e liquids of high viscosities. The p u m p s are available in m o s t m a t e r i a l s of c o n s t r u c t i o n w i t h t h e flexible shaft specially c o a t e d for h i g h p e r f o r m a n c e u n d e r a r d u o u s conditions.
o p e r a t e s in c o n j u n c t i o n with a positive sealing float allowing dry p r i m e operation. In a d d i t i o n to a c o n t i n u o u s d r y - r u n c a p a b i l i t y , all RediPrime m o d e l s include Cornell's Cycloseal shaft sealing design. A d i s h e d b a c k p l a t e works w i t h t h e i m p e l l e r b a c k v a n e s to r e d u c e p r e s s u r e an d w e a r a r o u n d t h e seal a r e a of t h e p u m p a n d increase seal life w i t h o u t t h e n e e d for v e n t i n g or e x p e n s i v e w a t e r flush, a n o t o r i o u s prob l e m in t h e s e ap p l i cat i o n s. T h e R e d i - P r i m e r a n g e in cludes all Cornell's solids h an d ling p u m p u n i t s with sizes from 100 m m to 300 m m with flows up to 1000 m 3 / h an d h e a d s up to 70 m. The p u m p s are suitable f o r e i t h e r p o r t a b l e or m o r e p e r m a n e n t a p p l i c a t i o n s in t h e m u n i c i p a l m a r k e t such as p u m p s t a t i o n s an d sewage works. In addition, t h e Redi-Prime can be o p e r a t e d in c o n j u n c t i o n with a t e l e m e t r y system. With t h e ability to p a s s 3 in or l a r g e r solids, t h e R e d i - p r i m e range has a v ar i et y of uses in the municipal, mining, con-
Contact: Orbit Pumps Manufacturing, PO Box 18127, Rand Airport, 1419, South Africa. Tel: +29 11 4 0 3 3 3 1 3 ; Fax: + 29 11 403 1678.
[]
Solids h a n d l i n g p u m p features dry self-priming
Cornell P u m p h a s d e s i g n e d a new dry p r i m i n g solids h a n d l i n g pump which combines high p r e s s u r e a n d high flows with t h e benefits of t h e efficiency an d low energy c o n s u m p t i o n of a dry p r i m e unit. A f e a t u r e of Redi-Prime's dry p r i m e capability is t h e elimination of t h e n e e d to fill t h e p u m p before using it, ideal for sewage bypass operations. The diap h r a g m v a c u u m p r i m i n g sTstem
Redi-Prime dry self-priming pump from Cornell Pump Company.
WORLD PUMPS SEPTEMBER 1996