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Sump pumps boast total dry run capability
E QUIPMENT NEWS
ised motor, a n d the close-coup l e d v a r i a n t M o v i c h r o m NB to its p r o v e n M o v i c h r o m series. T h e use of c o r r o s i o n - r e s i s t a n t stainless steel for the hydraulic c o m p o n e n t s has e n h a n c e d the p u m p s ' versatility, it claims. An e n t i r e l y n e w d e s i g n of p r e s s u r e c h a m b e r allows automatic e v a c u a t i o n of air b u b b l e s d u r i n g p u m p operation. Hence, d r y - r u n n i n g of the m e c h a n i c a l seals is p r e v e n t e d and p u m p life cycles are increased.The p u m p s have e x c e l l e n t s u c t i o n characteristics since the first hydraulic stage is l o c a t e d b e l o w the suction nozzle. T h e in-line a r r a n g e m e n t of suction and discharge nozzle as w e l l as the p u m p ' s vertical design simplify installation a n d allows a space-saving p i p i n g layout. KSB says special a t t e n t i o n was paid to case of m a i n t e n a n c e in o r d e r to r e d u c e o p e r a t i n g costs.The p u m p s ' major compon e n t s have b e e n c o m b i n e d in a m o d u l a r system, w h i c h h e l p s reduce their spare parts stock.
The UniDry T M 050-4 promises low noise, reliable operation.
The p u m p s are d e s i g n e d for t e m p e r a t u r e s r a n g i n g from -30 °C to 120 °C at a m a x i m u m pressure of 25 bar.
Contact: KSB Aktiengesellschaft, D-67225 Frankenthal, Germany. Tel: +49 6233 863 702; Fax: +49 6233 863 456; www.ksb.de
i?i!
Elimination of air bubbles in the pressure chamber prevents dry running in KSB's Movichrom N series.
W O R L D P U M P S J U N E 1998
Clean vacuums assure process purity A n e w four-stage, valveless, dry p u m p , the U n i D r y T M 050-4, has b e e n l a u n c h e d b y Pfeiffer Vacuum. T h e n e w p u m p has an u l t i m a t e v a c u u m of a r o u n d 5 x 10-2 m b a r and is suitable for b a c k i n g c o n v e n t i o n a l turbomolecular p u m p s , the regeneration of c r y o p u m p s a n d applications in chemical, metallurgical and s e m i c o n d u c t o r industries as well as r e s e a r c h a n d development. The U n i D r y 050-4 features oil-free v a c u u m g e n e r a t i o n to assure process purity, low operating costs and high environmental compatibility. Its modular, compact design, wide range of accessories a n d i n n o v a t i v e compression p r i n c i p l e provides a p u r e
v a c u u m for sensitive processes, minimal cooling water and inert gas consumption. Maintenance is simplified, a n d Pfeiffer Vacuum says low noise levels and troublefree c o n t i n u o u s o p e r a t i o n are assured at intake pressures b e t w e e n 1000 and 0.05 mbar for the four-stage model. The U n i D r y 050 is resistant to d a m a g e from particles a n d fluids a n d p r e s s u r e surge protected u p to 16 bar. The u n i f o r m h o u s i n g t e m p e r a t u r e of over 90 °C p r e v e n t s c o n d e n s a t i o n of aggressive vapours and reaction p r o d u c t s in the p u m p .
Contact: Pfeiffer Vacuum Ltd, Bradbourne Drive, Milton Keynes MK7 8AZ, UK. Tel: +44 1908 373333; Fax: +44 1908 377776.
Sump pumps boast total dry run capability Vanton Pumps, the thermoplastic p u m p designer, has developed a n e w line of non-metallic, bearingless, vertical spindle centrifugal s u m p p u m p s to eliminate problems caused by i m m e r s e d bearings, such as
EQUIPMENT l
NEWS
recurring m a i n t e n a n c e and prod u c t i o n ' d o w n t i m e ' , w h i c h may o c c u r t h r o u g h dry r u n n i n g . The n e w cantilever p u m p s have b e e n specifically designed to h a n d l e corrosive, hazardous, toxic, waste or u l t r a p u r e fluids in p r o c e s s e s w h e r e i m m e r s e d bearings can n o t be tolerated. D e s i g n a t e d the V a n t o n SGK range, the n e w b e a r i n g l e s s p u m p , w i t h its dynamically bala n c e d cantilevered shaft design, e l i m i n a t e s the n e e d for subm e r g e d sleeve b e a r i n g s , therefore e n a b l i n g the p u m p to b e u s e d in c o n d i t i o n s w h e r e dry r u n n i n g m a y b e n e c e s s a r y for e x t e n d e d periods of time. Maintenance and repair d o w n t i m e is limited to r o u t i n e checks only, w i t h operating life between service intervals e x p e c t e d to be over 25 000 h. T h e SGK p u m p is rated for f l o w s to 240 m3/h, at heads to 67 m a n d for t e m p e r a t u r e s to 135 °C, w i t h the u p p e r range
CENTRIFUGALCORROSION RESISTANTPLASTICPUMPS Centrifugal pump, vertical axis, single stage support plate, column pipe, overhung impefler, coupled to electric flanged motor. Four construction versions, eigth sizes, twenty types, delivery heads up to 40 meters and capacity up to 90 m3/hr. Height of suction from 300 to 3000 mm, without intermediate bearings or positiv.eseals. PFTE- filled bushings fluxed by the pumped liquid.
I
Centrifugal pum, horizontal axis, close mpled, single stage, end suction, overhung impeller coupled to e ectr c coup ed flanged motor and foot mounted. Four construction versions, 7 sizes, 20 types. Delivery head up ~.o40 meters and capacity up to 90 m3/hr. Its mechanical seal, of exclusive design, insures a higt safety degree and a remarkable chemical and mechanical strength. The internal assembly optimizes theflushing action and the loss of heat and reduces the load on faces to a minimum.
S.411NOBARBERI di Barbera & Castiglioni Via Torino 12- 10032 Brandizzo (TO)-ITALY"Tel. (011) 913.90.63- TIx 22.22.35 SAV BAR I- Fax 39.11.913.73.13
!(
WORLD PUMPS JUNE 1998
Vanton's S G K can operate comfortably in dry-run conditions.
d e t e r m i n e d by the thermoplastics selected. All c o m p o n e n t s i n c o n t a c t with the fluid being p u m p e d are available i n h o m o g e n e o u s thermoplastics, dependent on the corrosive and abrasive chara c t e r i s t i c s of the f l u i d b e i n g pumped, operating temperatures a n d o t h e r specific conditions of service.The heavy duty, large d i a m e t e r stainless steel shaft is c o m p l e t e l y s l e e v e d in t h e r m o p l a s t i c s to avoid any p o s s i b i l i t y of f l u i d - t o - m e t a l contact. V a n t o n ' s SGK c a n t i l e v e r p u m p s are f u r n i s h e d w i t h closed or s e m i - o p e n , b a l a n c e d keyed i m p e l l e r s a n d w h i c h are sized to suit the required service c o n d i t i o n s . To assure positive drive a n d p r o v i d e a d d i t i o n a l rigidity at h i g h e r t e m p e r a t u r e s a n d heads, the t h e r m o p l a s t i c i m p e l l e r s are m o u l d e d w i t h an i m b e d d e d stainless steel insert. Vortex i m p e l l e r d e s i g n s are available for h a n d l i n g scurries and fluids w i t h stringy materials or solids w i t h d i a m e t e r s u p to 75 mm.
Contact: Vanton Pumps Ltd, Unit 6, Radnor Park Industrial Centre, Congleton, Cheshire CW12 4XL, UK. Tel: +44 1260 277040; Fax: +44 1260 280605.
Heavyweight backing for lightweight rotor blades F r e q u e n t r o t o r blade replacem e n t can be the Achilles heel of oil-lubricated rotary vane vacuum p u m p s and compressors. T h e s e o t h e r w i s e highly efficient, l o w cost p u m p s , p r o v i d e high levels of v a c u u m from a single stage, a n d are the w o r k h o r s e s of v a c u u m d r y i n g a n d distillation a p p l i c a t i o n s in the process industry. To o v e r c o m e this replacem e n t problem, Rietschle (UK) is introducing lightweight, cast alum i n i u m alloy rotor blades, with a u n i q u e five-year warranty. All other rotary vane p u m p s employ composite materials, and Rietschle believes itseff to be the only m a n u f a c t u r e r to guarantee the working life of its aluminium blades provided standard p u m p service p r o c e d u r e s have b e e n followed. Rotary vane p u m p s s u p p l i e d b y Rietschle will n o w be backed by a signed and dated five-year warranty certificate. The lightweight rotor blades are cast b y Rietschle in its foundry at Schopfheim,
ised motor, a n d the close-coup l e d v a r i a n t M o v i c h r o m NB to its p r o v e n M o v i c h r o m series. T h e use of c o r r o s i o n - r e s i s t a n t stainless steel for the hydraulic c o m p o n e n t s has e n h a n c e d the p u m p s ' versatility, it claims. An e n t i r e l y n e w d e s i g n of p r e s s u r e c h a m b e r allows automatic e v a c u a t i o n of air b u b b l e s d u r i n g p u m p operation. Hence, d r y - r u n n i n g of the m e c h a n i c a l seals is p r e v e n t e d and p u m p life cycles are increased.The p u m p s have e x c e l l e n t s u c t i o n characteristics since the first hydraulic stage is l o c a t e d b e l o w the suction nozzle. T h e in-line a r r a n g e m e n t of suction and discharge nozzle as w e l l as the p u m p ' s vertical design simplify installation a n d allows a space-saving p i p i n g layout. KSB says special a t t e n t i o n was paid to case of m a i n t e n a n c e in o r d e r to r e d u c e o p e r a t i n g costs.The p u m p s ' major compon e n t s have b e e n c o m b i n e d in a m o d u l a r system, w h i c h h e l p s reduce their spare parts stock.
The UniDry T M 050-4 promises low noise, reliable operation.
The p u m p s are d e s i g n e d for t e m p e r a t u r e s r a n g i n g from -30 °C to 120 °C at a m a x i m u m pressure of 25 bar.
Contact: KSB Aktiengesellschaft, D-67225 Frankenthal, Germany. Tel: +49 6233 863 702; Fax: +49 6233 863 456; www.ksb.de
i?i!
Elimination of air bubbles in the pressure chamber prevents dry running in KSB's Movichrom N series.
W O R L D P U M P S J U N E 1998
Clean vacuums assure process purity A n e w four-stage, valveless, dry p u m p , the U n i D r y T M 050-4, has b e e n l a u n c h e d b y Pfeiffer Vacuum. T h e n e w p u m p has an u l t i m a t e v a c u u m of a r o u n d 5 x 10-2 m b a r and is suitable for b a c k i n g c o n v e n t i o n a l turbomolecular p u m p s , the regeneration of c r y o p u m p s a n d applications in chemical, metallurgical and s e m i c o n d u c t o r industries as well as r e s e a r c h a n d development. The U n i D r y 050-4 features oil-free v a c u u m g e n e r a t i o n to assure process purity, low operating costs and high environmental compatibility. Its modular, compact design, wide range of accessories a n d i n n o v a t i v e compression p r i n c i p l e provides a p u r e
v a c u u m for sensitive processes, minimal cooling water and inert gas consumption. Maintenance is simplified, a n d Pfeiffer Vacuum says low noise levels and troublefree c o n t i n u o u s o p e r a t i o n are assured at intake pressures b e t w e e n 1000 and 0.05 mbar for the four-stage model. The U n i D r y 050 is resistant to d a m a g e from particles a n d fluids a n d p r e s s u r e surge protected u p to 16 bar. The u n i f o r m h o u s i n g t e m p e r a t u r e of over 90 °C p r e v e n t s c o n d e n s a t i o n of aggressive vapours and reaction p r o d u c t s in the p u m p .
Contact: Pfeiffer Vacuum Ltd, Bradbourne Drive, Milton Keynes MK7 8AZ, UK. Tel: +44 1908 373333; Fax: +44 1908 377776.
Sump pumps boast total dry run capability Vanton Pumps, the thermoplastic p u m p designer, has developed a n e w line of non-metallic, bearingless, vertical spindle centrifugal s u m p p u m p s to eliminate problems caused by i m m e r s e d bearings, such as
EQUIPMENT l
NEWS
recurring m a i n t e n a n c e and prod u c t i o n ' d o w n t i m e ' , w h i c h may o c c u r t h r o u g h dry r u n n i n g . The n e w cantilever p u m p s have b e e n specifically designed to h a n d l e corrosive, hazardous, toxic, waste or u l t r a p u r e fluids in p r o c e s s e s w h e r e i m m e r s e d bearings can n o t be tolerated. D e s i g n a t e d the V a n t o n SGK range, the n e w b e a r i n g l e s s p u m p , w i t h its dynamically bala n c e d cantilevered shaft design, e l i m i n a t e s the n e e d for subm e r g e d sleeve b e a r i n g s , therefore e n a b l i n g the p u m p to b e u s e d in c o n d i t i o n s w h e r e dry r u n n i n g m a y b e n e c e s s a r y for e x t e n d e d periods of time. Maintenance and repair d o w n t i m e is limited to r o u t i n e checks only, w i t h operating life between service intervals e x p e c t e d to be over 25 000 h. T h e SGK p u m p is rated for f l o w s to 240 m3/h, at heads to 67 m a n d for t e m p e r a t u r e s to 135 °C, w i t h the u p p e r range
CENTRIFUGALCORROSION RESISTANTPLASTICPUMPS Centrifugal pump, vertical axis, single stage support plate, column pipe, overhung impefler, coupled to electric flanged motor. Four construction versions, eigth sizes, twenty types, delivery heads up to 40 meters and capacity up to 90 m3/hr. Height of suction from 300 to 3000 mm, without intermediate bearings or positiv.eseals. PFTE- filled bushings fluxed by the pumped liquid.
I
Centrifugal pum, horizontal axis, close mpled, single stage, end suction, overhung impeller coupled to e ectr c coup ed flanged motor and foot mounted. Four construction versions, 7 sizes, 20 types. Delivery head up ~.o40 meters and capacity up to 90 m3/hr. Its mechanical seal, of exclusive design, insures a higt safety degree and a remarkable chemical and mechanical strength. The internal assembly optimizes theflushing action and the loss of heat and reduces the load on faces to a minimum.
S.411NOBARBERI di Barbera & Castiglioni Via Torino 12- 10032 Brandizzo (TO)-ITALY"Tel. (011) 913.90.63- TIx 22.22.35 SAV BAR I- Fax 39.11.913.73.13
!(
WORLD PUMPS JUNE 1998
Vanton's S G K can operate comfortably in dry-run conditions.
d e t e r m i n e d by the thermoplastics selected. All c o m p o n e n t s i n c o n t a c t with the fluid being p u m p e d are available i n h o m o g e n e o u s thermoplastics, dependent on the corrosive and abrasive chara c t e r i s t i c s of the f l u i d b e i n g pumped, operating temperatures a n d o t h e r specific conditions of service.The heavy duty, large d i a m e t e r stainless steel shaft is c o m p l e t e l y s l e e v e d in t h e r m o p l a s t i c s to avoid any p o s s i b i l i t y of f l u i d - t o - m e t a l contact. V a n t o n ' s SGK c a n t i l e v e r p u m p s are f u r n i s h e d w i t h closed or s e m i - o p e n , b a l a n c e d keyed i m p e l l e r s a n d w h i c h are sized to suit the required service c o n d i t i o n s . To assure positive drive a n d p r o v i d e a d d i t i o n a l rigidity at h i g h e r t e m p e r a t u r e s a n d heads, the t h e r m o p l a s t i c i m p e l l e r s are m o u l d e d w i t h an i m b e d d e d stainless steel insert. Vortex i m p e l l e r d e s i g n s are available for h a n d l i n g scurries and fluids w i t h stringy materials or solids w i t h d i a m e t e r s u p to 75 mm.
Contact: Vanton Pumps Ltd, Unit 6, Radnor Park Industrial Centre, Congleton, Cheshire CW12 4XL, UK. Tel: +44 1260 277040; Fax: +44 1260 280605.
Heavyweight backing for lightweight rotor blades F r e q u e n t r o t o r blade replacem e n t can be the Achilles heel of oil-lubricated rotary vane vacuum p u m p s and compressors. T h e s e o t h e r w i s e highly efficient, l o w cost p u m p s , p r o v i d e high levels of v a c u u m from a single stage, a n d are the w o r k h o r s e s of v a c u u m d r y i n g a n d distillation a p p l i c a t i o n s in the process industry. To o v e r c o m e this replacem e n t problem, Rietschle (UK) is introducing lightweight, cast alum i n i u m alloy rotor blades, with a u n i q u e five-year warranty. All other rotary vane p u m p s employ composite materials, and Rietschle believes itseff to be the only m a n u f a c t u r e r to guarantee the working life of its aluminium blades provided standard p u m p service p r o c e d u r e s have b e e n followed. Rotary vane p u m p s s u p p l i e d b y Rietschle will n o w be backed by a signed and dated five-year warranty certificate. The lightweight rotor blades are cast b y Rietschle in its foundry at Schopfheim,