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Load control protects motors and pumps
UIPMENT NEWS
EQ
B
Beckson Marine's portable Super Pump can shift double the volume of common diaphragm pumps.
v o l u m e of w a t e r quickly. A n e w high-capacity hand-pump made by Beckson Marine p r o v i d e s t h i s capability. The .524 Thirsty Mate S u p e r P u m p moves a p p r o x i m a t e l y 113 lpm or roughly twice the a m o u n t m o v e d by c o m m o n diaphragm pumps. Unlike diap h r a g m models, which m u s t be m o u n t e d for p r o p e r o p e r a t i o n , the Super Pump can be : m o u n t e d o r left free t o b e moved to where it's most needed. The 1.8 m o u t l e t hose directs the water stream overboard. The end of t h e 1.2 m i n t a k e hose h a s a s t r a i n e r valve to keep out debris that could d a m a g e o r clog t h e p u m p . Both hoses are m a d e of rugged, wirereinforced vinyl. A check valve p r e v e n t s w a t e r w i t h i n t h e p u m p from r u n n i n g b a c k o u t t h e intake. This m a x imizes t h e v o l u m e m o v e d with each stroke, which is a b o u t 1.9 1. The self-priming p u m p is m a n u f a c t u r e d in t h e USA o u t o f n o n - c o r r o d i n g m a t e r i a l s , including a polyvinyl grey b o d y a n d shaft.
d e s i g n e d for a p p l i c a t i o n s involving low flows a n d low pressures a n d is t h u s s u i t a b l e for use in p i l o t plants, s a m p l i n g processes, small production units a n d c e r t a i n types of p h a r m a c e u t i c a l p r o d u c t i o n lines. The W + 5 0 / 8 p u m p w a s APV Fluid Handling has l a u n c h e d two low flow p u m p s d e v e l o p e d for low flow a n d high to s u p p l e m e n t its W + p u m p p r e s s u r e hygienic a p p l i c a t i o n s range: t h e W + 10/8 a n d t h e such as p a s t e u r i s a t i o n plants, W + 50/8 p u m p . The two p u m p s U H T - p l a n t s , d e a e r a t i o n a n d have b e e n d e s i g n e d especially w a t e r d e a r e a t i o n u n i t s etc. for low-flow a p p l i c a t i o n s a n d Contact: APV Fluid Handling offer a c o m b i n a t i o n of perfor- Horsens, Ternevej 61-63, DK 8700 m a n c e benefits... Horsens, Denmark. Tel: +45 756 43777; Fax: +45 7564 3868. • gentle p r o d u c t t r e a t m e n t • s u p e r i o r l o w flow p e r f o r I Load control m a n c e c o m b i n e d w i t h high protects motors efficiency • o p e r a t i o n with very low inlet and p u m p s pressures • s t u r d y a n d torsion-free design The Motor L o a d Control unit,
Hygienic principles applied to l o w flow p u m p s
The W + low flow p u m p s are b a s e d on t h e hygienic p r i n c i p l e s of t h e W + centrifugal p u m p range and despite the pumps' l i m i t e d physical sizes, t h e p u m p s h a f t s e a l s a r e of t h e s a m e q u a l i t y as t h o s e u s e d for t h e larger pumps. APV says t h e W10/8 p u m p is
now available from Vydas, p r o vides a n efficient s o l u t i o n to t h e p r e v e n t i o n of d a m a g e to indust r i a l electric m o t o r s c a u s e d by overload, j a m m i n g , loss o f l o a d o r p u m p d r y running. The u n i t is surface m o u n t e d for ease of installation and displays true p o w e r (Volts x A m p s x Power F a c t o r ) on a large LED display.
Contact: Beckson Marine Inc, 165 Holland Ave, Bridgeport, CT 06605, USA. Tel: +1 203 333 The MLC acts to prevent damage to motors caused by faulty running conditions. 1412; Fax: + 1 203 384 6954.
WORLD PUMPS JUNE 1997
EQUIPMENT
NEWS
Both high a n d low p o w e r t r i p s w i t h a d j u s t a b l e on delays a n d i n d i v i d u a l t r i p t i m e r s a r e stand a r d f e a t u r e s . The low p o w e r trip, w h e n u s e d to d e t e c t d r y running, is u p to t e n t i m e s m o r e sensitive t h a t of c o n v e n t i o n a l u n d e r c u r r e n t relays. The 4-20 m A a n a l o g u e o u t p u t a n d individual trip relays allow the f l e x i b i l i t y of p u m p o r m o t o r control and process perform a n c e monitoring. The u n i t is d e s i g n e d in a r u g g e d s e a l e d w a t e r p r o o f polycarbonate enclosure. A high p o w e r trip is p r o v i d e d for t h e detection of problems such overloads, jammed impellers, b a d b e a r i n g s o r blocked o u t l e t s a n d a low p o w e r t r i p p r o v i d e s d e t e c t i o n of low l o a d o r no flow conditions such as loss of prime. The p r o d u c t is c o m p a t i ble w i t h 3 p h a s e m o t o r s r a n g i n g in size up to 240 kW, o p e r a t i n g on s u p p l i e s between 230 V a n d u p to 460 V AC. Trip levels are. also d i s p l a y e d on t h e m e t e r o f a s e t - r e a d s w i t c h , a n d m a y be s e t by screwdriver adjustment. Both start-up and trip delay timers a r e i n c l u d e d to p r e v e n t nuisance tripping. The MLC is s u i t e d to a wide r a n g e of a p p l i c a t i o n s in i n d u s t r y a n d w o r k s well a t t a s k s such as p r o t e c t i n g p u m p s , i n c l u d i n g seal-less o r m a g n e t i c drive, centrifugal, positive d i s p l a c e m e n t ,
p r o c e s s a n d sewage p u m p s . In addition, m o n i t o r i n g electrical p o w e r a n d m o t o r l o a d allows t h e p r o d u c t to be u s e d to solve p r o d u c t i o n p r o b l e m s anywhere electric m o t o r s a r e used, such as conveyers, fans, c o m p r e s s o r s , rollers, a n d grinders. Contact: Vydas International Marketing, PO Box 32, Farnham, Surrey GU9 8EX, UK. Tel: +44 1252 718466; Fax: + 4 4 1252 718467.
[m
Offset gear sets soften noise
B e r e n d s e n F l u i d Power h a s unveiled a r a n g e of q u i e t e x t e r n a l g e a r p u m p s w i t h noise levels of 3.5 d b ( A ) b e l o w t h a t of conventional external gear pumps, w i t h o u t sacrificing s i m p l i c i t y o r reliability. M e a s u r e d from a d i s t a n c e of one metre, a 16 cm3/rev p u m p a t 1500 r p m g e n e r a t e d 66 d B ( A ) a t 7 b a r 69.3 d b ( A ) a t 140 bar, r o o m noise level - 58 db (A). The n e w p u m p s w o r k in e x a c t l y t h e s a m e w a y as con. ventional external gear pumps e x c e p t for two offset 12 t o o t h g e a r sets using c o m m o n s u c t i o n and pressure parts thus reducing p r e s s u r e r i p p l e a n d conseq u e n t l y noise level. Initially seven sizes of t h e s e a l u m i n i u m b o d i e d p u m p s have
Berendsen's quiet external gear pumps.
WORLD PUMPS JUNE 1997
EQ
B
Beckson Marine's portable Super Pump can shift double the volume of common diaphragm pumps.
v o l u m e of w a t e r quickly. A n e w high-capacity hand-pump made by Beckson Marine p r o v i d e s t h i s capability. The .524 Thirsty Mate S u p e r P u m p moves a p p r o x i m a t e l y 113 lpm or roughly twice the a m o u n t m o v e d by c o m m o n diaphragm pumps. Unlike diap h r a g m models, which m u s t be m o u n t e d for p r o p e r o p e r a t i o n , the Super Pump can be : m o u n t e d o r left free t o b e moved to where it's most needed. The 1.8 m o u t l e t hose directs the water stream overboard. The end of t h e 1.2 m i n t a k e hose h a s a s t r a i n e r valve to keep out debris that could d a m a g e o r clog t h e p u m p . Both hoses are m a d e of rugged, wirereinforced vinyl. A check valve p r e v e n t s w a t e r w i t h i n t h e p u m p from r u n n i n g b a c k o u t t h e intake. This m a x imizes t h e v o l u m e m o v e d with each stroke, which is a b o u t 1.9 1. The self-priming p u m p is m a n u f a c t u r e d in t h e USA o u t o f n o n - c o r r o d i n g m a t e r i a l s , including a polyvinyl grey b o d y a n d shaft.
d e s i g n e d for a p p l i c a t i o n s involving low flows a n d low pressures a n d is t h u s s u i t a b l e for use in p i l o t plants, s a m p l i n g processes, small production units a n d c e r t a i n types of p h a r m a c e u t i c a l p r o d u c t i o n lines. The W + 5 0 / 8 p u m p w a s APV Fluid Handling has l a u n c h e d two low flow p u m p s d e v e l o p e d for low flow a n d high to s u p p l e m e n t its W + p u m p p r e s s u r e hygienic a p p l i c a t i o n s range: t h e W + 10/8 a n d t h e such as p a s t e u r i s a t i o n plants, W + 50/8 p u m p . The two p u m p s U H T - p l a n t s , d e a e r a t i o n a n d have b e e n d e s i g n e d especially w a t e r d e a r e a t i o n u n i t s etc. for low-flow a p p l i c a t i o n s a n d Contact: APV Fluid Handling offer a c o m b i n a t i o n of perfor- Horsens, Ternevej 61-63, DK 8700 m a n c e benefits... Horsens, Denmark. Tel: +45 756 43777; Fax: +45 7564 3868. • gentle p r o d u c t t r e a t m e n t • s u p e r i o r l o w flow p e r f o r I Load control m a n c e c o m b i n e d w i t h high protects motors efficiency • o p e r a t i o n with very low inlet and p u m p s pressures • s t u r d y a n d torsion-free design The Motor L o a d Control unit,
Hygienic principles applied to l o w flow p u m p s
The W + low flow p u m p s are b a s e d on t h e hygienic p r i n c i p l e s of t h e W + centrifugal p u m p range and despite the pumps' l i m i t e d physical sizes, t h e p u m p s h a f t s e a l s a r e of t h e s a m e q u a l i t y as t h o s e u s e d for t h e larger pumps. APV says t h e W10/8 p u m p is
now available from Vydas, p r o vides a n efficient s o l u t i o n to t h e p r e v e n t i o n of d a m a g e to indust r i a l electric m o t o r s c a u s e d by overload, j a m m i n g , loss o f l o a d o r p u m p d r y running. The u n i t is surface m o u n t e d for ease of installation and displays true p o w e r (Volts x A m p s x Power F a c t o r ) on a large LED display.
Contact: Beckson Marine Inc, 165 Holland Ave, Bridgeport, CT 06605, USA. Tel: +1 203 333 The MLC acts to prevent damage to motors caused by faulty running conditions. 1412; Fax: + 1 203 384 6954.
WORLD PUMPS JUNE 1997
EQUIPMENT
NEWS
Both high a n d low p o w e r t r i p s w i t h a d j u s t a b l e on delays a n d i n d i v i d u a l t r i p t i m e r s a r e stand a r d f e a t u r e s . The low p o w e r trip, w h e n u s e d to d e t e c t d r y running, is u p to t e n t i m e s m o r e sensitive t h a t of c o n v e n t i o n a l u n d e r c u r r e n t relays. The 4-20 m A a n a l o g u e o u t p u t a n d individual trip relays allow the f l e x i b i l i t y of p u m p o r m o t o r control and process perform a n c e monitoring. The u n i t is d e s i g n e d in a r u g g e d s e a l e d w a t e r p r o o f polycarbonate enclosure. A high p o w e r trip is p r o v i d e d for t h e detection of problems such overloads, jammed impellers, b a d b e a r i n g s o r blocked o u t l e t s a n d a low p o w e r t r i p p r o v i d e s d e t e c t i o n of low l o a d o r no flow conditions such as loss of prime. The p r o d u c t is c o m p a t i ble w i t h 3 p h a s e m o t o r s r a n g i n g in size up to 240 kW, o p e r a t i n g on s u p p l i e s between 230 V a n d u p to 460 V AC. Trip levels are. also d i s p l a y e d on t h e m e t e r o f a s e t - r e a d s w i t c h , a n d m a y be s e t by screwdriver adjustment. Both start-up and trip delay timers a r e i n c l u d e d to p r e v e n t nuisance tripping. The MLC is s u i t e d to a wide r a n g e of a p p l i c a t i o n s in i n d u s t r y a n d w o r k s well a t t a s k s such as p r o t e c t i n g p u m p s , i n c l u d i n g seal-less o r m a g n e t i c drive, centrifugal, positive d i s p l a c e m e n t ,
p r o c e s s a n d sewage p u m p s . In addition, m o n i t o r i n g electrical p o w e r a n d m o t o r l o a d allows t h e p r o d u c t to be u s e d to solve p r o d u c t i o n p r o b l e m s anywhere electric m o t o r s a r e used, such as conveyers, fans, c o m p r e s s o r s , rollers, a n d grinders. Contact: Vydas International Marketing, PO Box 32, Farnham, Surrey GU9 8EX, UK. Tel: +44 1252 718466; Fax: + 4 4 1252 718467.
[m
Offset gear sets soften noise
B e r e n d s e n F l u i d Power h a s unveiled a r a n g e of q u i e t e x t e r n a l g e a r p u m p s w i t h noise levels of 3.5 d b ( A ) b e l o w t h a t of conventional external gear pumps, w i t h o u t sacrificing s i m p l i c i t y o r reliability. M e a s u r e d from a d i s t a n c e of one metre, a 16 cm3/rev p u m p a t 1500 r p m g e n e r a t e d 66 d B ( A ) a t 7 b a r 69.3 d b ( A ) a t 140 bar, r o o m noise level - 58 db (A). The n e w p u m p s w o r k in e x a c t l y t h e s a m e w a y as con. ventional external gear pumps e x c e p t for two offset 12 t o o t h g e a r sets using c o m m o n s u c t i o n and pressure parts thus reducing p r e s s u r e r i p p l e a n d conseq u e n t l y noise level. Initially seven sizes of t h e s e a l u m i n i u m b o d i e d p u m p s have
Berendsen's quiet external gear pumps.
WORLD PUMPS JUNE 1997