- Email: [email protected]
Double diaphragm pumps at the cutting edge
EQUIPMENT
NEWS
c l u d e d a i r bubbles. The p r o c e s s stems, a n d t h e s u b s e q u e n t evag u a r a n t e e s l o n g t e r m s t r e s s l u a t i o n by BP into g l a n d packr e s i s t a n c e a n d elasticity p r o p e r - ings on t h e m a r k e t a t t h a t time. ties. Following the evaluation, Frenzelit says that, d u e to its Flexitallic set o u t to develop a universal application range, purpose built system which s t o c k k e e p i n g is s i m p l i f i e d w o u l d o u t - p e r f o r m a n y t h i n g (one g r a d e for 90% of all che- seen in t h e i n d u s t r y before a n d mical a p p l i c a t i o n s ) . The s h e e t a t t h e s a m e t i m e bring cost is easy to cut a n d to handle. It s a v i n g b e n e f i t s to b o t h e n d h a s been a p p r o v e d by t h e Ger- u s e r s a n d valve m a n u f a c t u r e r s . m a n DVGW ( g a s a p p r o v a l ) , The f i v e - c o m p o n e n t g r a p h i t e KTW ( p o t a b l e w a t e r ) and system comprises an olive o t h e r s have been a p p l i e d for. shaped central section with F o r a d i s t i n c t i v e i d e n t i t y , two conical c o m p r e s s i o n rings Frenzelit h a s c o a t e d t h e s h e e t a n d b r a i d e d g r a p h i t e e n d rings. w i t h a n a n t i s t i c k r o y a l b l u e It is s u i t a b l e for sealing b o t h coating. l i n e a r a n d r o t a r y valves which m a y be c o n t r o l or h a n d operContact: Frenzellt-Werke GmbH & Co KG, Postfach 1140, D-95456 a t e d , b u t it is t h e s y s t e m ' s Bad Berneck, Germany. Tel: +49 p e r f o r m a n c e w h e n u s e d w i t h 9273 720; Fax: +49 9273 72222; t r a d i t i o n a l l y m o r e t r o u b l e s o m e WWW: http:llwww.frenzellt.com rising s p i n d l e valves t h a t is so impressive. The u n i q u e c o n s t r u c t i o n a n d Sealing without the naturally lubricious materihigh friction als i n c o r p o r a t e d in t h e Enviroflex 500 design mean an effective seal is achieved w i t h a A new valve s t e m sealing system relatively low load, s t e m friction which e x c e e d s t h e m o s t strin- is r e d u c e d t h e r e b y allowing ungent r e q u i r e m e n t s for fugitive i m p a i r e d o p e r a t i o n of t h e valve. e m i s s i o n s a n d p r o v i d e s a high A high speed, c o n t r o l l e d o p e r a level of seal w i t h o u t incurring t i o n is p o s s i b l e w i t h l o w e r excessive s t e m friction h a s been p o w e r e d a c t u a t o r s - b r i n g i n g d e v e l o p e d a n d l a u n c h e d b y c o n s i d e r a b l e cost benefits. Flexitallic. Enviroflex 500 is d e s i g n e d to Enviroflex 500 @ is t h e r e s u l t give o p t i m u m sealing a n d s t e m of a p r o g r a m m e i n i t i a t e d by m o v e m e n t on a s t e m finish of 2 F l e x i t a l l i c in 1994, following r m s , o r r o l l e r b u r n i s h e d t h e API's r e s e a r c h which con- finishes. F u r t h e r e c o n o m i e s a r e firmed a r o u n d 65% of fugitive delivered by t h e flexibility of t h e e m i s s i o n s c a m e f r o m v a l v e system. The efficient w a y in which a x i a l l o a d is c o n v e r t e d to r a d i a l force, c o m b i n e d w i t h t h e c o n f o r m a b l e c e n t r a l olive, can effect a seal a r o u n d reasona b l e wear, r e d u c i n g t h e need for s t e m r e p l a c e m e n t a n d b o x relining. F i t t i n g E n v i r o f l e x 500 is s t r a i g h t f o r w a r d , a n d a n "identity tag" listing compression d i s t a n c e s is p r o v i d e d to act as a n i n s t a l l a t i o n guide for individ u a l valves. The system m e e t s t h e fire safety r e q u i r e m e n t s of API 607 a n d 589 a n d a corrosion i n h i b i t o r gives a d d e d protection from galvanic or g r a p h i t i c c o r r o s i o n d u r i n g storage. Valve m a n u f a c t u r e r s will find t i m e savings delivered by t h e Compression testing Flexitallic's new Envir- i m p e r m e a b l e c o n s t r u c t i o n elimi n a t i n g t h e n e e d for "slave" oflex 500 @.
WORLD PUMPS AUGUST 1997
p a c k i n g s d u r i n g hydro test. Contact: Flexitallic, PO Box 3, Marsh Works, Dewsbury Road, Cleckheaton, West Yorkshire BD19 5BT, UK. Tel: +44 1274 851273; Fax: +44 1274 851386.
F l e x i b l e pump lowers operational costs Stork Pumps has announced t h e arrival of a new p u m p r a n g e - t h e flexible i m p e l l e r p u m p . The FIP h a s been so d e s i g n e d as to p r o v i d e an easy to h a n d l e positive displacement pump with self-priming characteristics. The p u m p offers b e t t e r s u c t i o n t h a n r o t a r y lobe d e s i g n s even when dry. The FIP p r o v i d e s a gentle p u m p i n g action, giving a uniform flow w i t h o u t pulsation. It is s u i t a b l e for a v a r i e t y o f p r o c e s s e s t h a t r e q u i r e careful h a n d l i n g . By r e g u l a t i n g t h e s p e e d of t h e p u m p u s e r s can also a p p l y t h e p u m p for dosing. There a r e four v e r s i o n s m a d e from different material: stainless steel - for g e n e r a l p u p r o s e non-hygienic applications; e p o x y - for a p p l i c a t i o n s requiring c h e m i c a l resistance; bronze - for p u m p i n g saltwater, m i n e r a l oil, slurries or a b r a s i v e liquids; s t a i n l e s s steel hygienic version for t h e food, d a i r y d r i n k s sectors, t e s t e d to FDA regulations. A 12 p a g e b r o c h u r e giving full specifications a n d c a p a c i t y d a t a is available. Contact: Stork Pumps Ltd, Meadow Brook Industrial Estate, Maxwell Way, Crawley, West Sussex RH10 2SA, UK. Tel: +44 1293 553495; Fax: +44 1293 524635.
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Double diaphragm p u m p s at the cutting edge
Verder h a s e n h a n c e d its range of p r o d u c t s by t h e l a u n c h of t h e new Verderair r a n g e of d o u b l e d i a p h r a g m p u m p s . Designed to be a t t h e l e a d i n g edge of ind u s t r i a l technology, t h i s positive d i s p l a c e m e n t , self p r i m i n g series of p u m p s is c o n s t r u c t e d
UIPMENT
EQ in t o p q u a l i t y m a t e r i a l s ; t h e p u m p s p r o v i d e s m o o t h reliable flow even u n d e r t h e t o u g h e s t conditions. The design of t h e new a i r valve p r o v i d e s fully nonstalling o p e r a t i o n , even a t low pressure, a n d is t o t a l l y oil-free. Pumping highly abrasive a n d / o r viscous m e d i a is m a d e p o s s i b l e by s o m e u n i q u e design features. A p a t e n t e d air valve guarantees high performance even u n d e r heavy d u t y conditions and the units are air p o w e r e d for use in l o c a t i o n s where electrical power could be a hazard. The e p o x y coating gives high levels of resistance. Screwed c h a m b e r s p r o v i d e safe o p e r a t i o n , a n d cast feed m o u n t ing p r e v e n t vibration. W e t t e d p a r t s a r e in acetyl, PP, kynar, a l u m i n i u m , cast iron o r s t a i n l e s s steel; t h e balls a n d / o r d i a p h r a g m a r e o f t)TFE, hytrel, s a n t o p r e n e , Viton, B u n a N, acetyl a n d s t a i n l e s s steel. Flows r a n g e from 0.1 to 1050 1/min at a m a x i m u m p r e s s u r e of 8.4 bar. Contact: Verder Ltd, Whitehouse Street, Leeds LS10 lAD, UK. Tel: +44 113 222 0250; Fax: +44 113 246 5649; E-mail: v e r d e r @ legend.co.uk
w i d e l y u s e d in t h e o f f s h o r e i n d u s t r y a n d known to p o s s e s s q u a l i t i e s t h a t m a k e it a n outs t a n d i n g alloy for u t i l i s a t i o n in shafts for valves, p u m p s etc. The m a t e r i a l is used m a i n l y for seaw a t e r a p p l i c a t i o n s a n d in o t h e r corrosive e n v i r o n m e n t s b e c a u s e of a c o m b i n a t i o n of corrosion r e s i s t a n c e a n d t h e s t r e n g t h of t h e material. In Nijkerek, The Netherlands, stocks are kept from 6 m m up to 100 m m d i a m e t e r . H a r t b.v. s p e c i a l i s e s in bar, p l a t e a n d piping p r o d u c t s in nickel alloys (Alloy 200, 400, 600, C276 etc.) as well as titanium, special stainless steel and o t h e r corrosion and heat resistant materials. Contact: Hart b.v., PO Box 144, 3860 AC Nijkerk, The Netherlands. Tel: + 31 33 2453848; Fax: + 31 33 2459875; E-mail: hartbv@ worldonline.nl
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Pump heads for zero dead volume applications
The new LF (Low Flow) p u m p h e a d s a n d Q661 s m a l l b o r e t u b i n g kits from Fluid Metering feature standard wetted materials of ceramic a n d f l u o r o c a r b o n Broadening the which provides a chemically choice o f shaft r e s i s t a n t fluid p a t h a n d millions alloys of t r o u b l e free cycles. Flow r a t e s a r e available from 0 to 0.10 m l / s t r o k e a n d 0 to 0.72 m l / s t r o k e H a r t b.v. h a s e x t e n d e d its s t o c k with r e p e a t a c c u r a c y of b e t t e r p r o g r a m m e w i t h r o u n d b a r in t h a n 0.1%. A l l o y K-500. A l l o y K-500 is The new LF h e a d s f e a t u r e
Low flow pump heads from Fluid Metering use ceramics for chemical resistance.
WORLD PUMPS AUGUST 1997
NEWS
NEWS
c l u d e d a i r bubbles. The p r o c e s s stems, a n d t h e s u b s e q u e n t evag u a r a n t e e s l o n g t e r m s t r e s s l u a t i o n by BP into g l a n d packr e s i s t a n c e a n d elasticity p r o p e r - ings on t h e m a r k e t a t t h a t time. ties. Following the evaluation, Frenzelit says that, d u e to its Flexitallic set o u t to develop a universal application range, purpose built system which s t o c k k e e p i n g is s i m p l i f i e d w o u l d o u t - p e r f o r m a n y t h i n g (one g r a d e for 90% of all che- seen in t h e i n d u s t r y before a n d mical a p p l i c a t i o n s ) . The s h e e t a t t h e s a m e t i m e bring cost is easy to cut a n d to handle. It s a v i n g b e n e f i t s to b o t h e n d h a s been a p p r o v e d by t h e Ger- u s e r s a n d valve m a n u f a c t u r e r s . m a n DVGW ( g a s a p p r o v a l ) , The f i v e - c o m p o n e n t g r a p h i t e KTW ( p o t a b l e w a t e r ) and system comprises an olive o t h e r s have been a p p l i e d for. shaped central section with F o r a d i s t i n c t i v e i d e n t i t y , two conical c o m p r e s s i o n rings Frenzelit h a s c o a t e d t h e s h e e t a n d b r a i d e d g r a p h i t e e n d rings. w i t h a n a n t i s t i c k r o y a l b l u e It is s u i t a b l e for sealing b o t h coating. l i n e a r a n d r o t a r y valves which m a y be c o n t r o l or h a n d operContact: Frenzellt-Werke GmbH & Co KG, Postfach 1140, D-95456 a t e d , b u t it is t h e s y s t e m ' s Bad Berneck, Germany. Tel: +49 p e r f o r m a n c e w h e n u s e d w i t h 9273 720; Fax: +49 9273 72222; t r a d i t i o n a l l y m o r e t r o u b l e s o m e WWW: http:llwww.frenzellt.com rising s p i n d l e valves t h a t is so impressive. The u n i q u e c o n s t r u c t i o n a n d Sealing without the naturally lubricious materihigh friction als i n c o r p o r a t e d in t h e Enviroflex 500 design mean an effective seal is achieved w i t h a A new valve s t e m sealing system relatively low load, s t e m friction which e x c e e d s t h e m o s t strin- is r e d u c e d t h e r e b y allowing ungent r e q u i r e m e n t s for fugitive i m p a i r e d o p e r a t i o n of t h e valve. e m i s s i o n s a n d p r o v i d e s a high A high speed, c o n t r o l l e d o p e r a level of seal w i t h o u t incurring t i o n is p o s s i b l e w i t h l o w e r excessive s t e m friction h a s been p o w e r e d a c t u a t o r s - b r i n g i n g d e v e l o p e d a n d l a u n c h e d b y c o n s i d e r a b l e cost benefits. Flexitallic. Enviroflex 500 is d e s i g n e d to Enviroflex 500 @ is t h e r e s u l t give o p t i m u m sealing a n d s t e m of a p r o g r a m m e i n i t i a t e d by m o v e m e n t on a s t e m finish of 2 F l e x i t a l l i c in 1994, following r m s , o r r o l l e r b u r n i s h e d t h e API's r e s e a r c h which con- finishes. F u r t h e r e c o n o m i e s a r e firmed a r o u n d 65% of fugitive delivered by t h e flexibility of t h e e m i s s i o n s c a m e f r o m v a l v e system. The efficient w a y in which a x i a l l o a d is c o n v e r t e d to r a d i a l force, c o m b i n e d w i t h t h e c o n f o r m a b l e c e n t r a l olive, can effect a seal a r o u n d reasona b l e wear, r e d u c i n g t h e need for s t e m r e p l a c e m e n t a n d b o x relining. F i t t i n g E n v i r o f l e x 500 is s t r a i g h t f o r w a r d , a n d a n "identity tag" listing compression d i s t a n c e s is p r o v i d e d to act as a n i n s t a l l a t i o n guide for individ u a l valves. The system m e e t s t h e fire safety r e q u i r e m e n t s of API 607 a n d 589 a n d a corrosion i n h i b i t o r gives a d d e d protection from galvanic or g r a p h i t i c c o r r o s i o n d u r i n g storage. Valve m a n u f a c t u r e r s will find t i m e savings delivered by t h e Compression testing Flexitallic's new Envir- i m p e r m e a b l e c o n s t r u c t i o n elimi n a t i n g t h e n e e d for "slave" oflex 500 @.
WORLD PUMPS AUGUST 1997
p a c k i n g s d u r i n g hydro test. Contact: Flexitallic, PO Box 3, Marsh Works, Dewsbury Road, Cleckheaton, West Yorkshire BD19 5BT, UK. Tel: +44 1274 851273; Fax: +44 1274 851386.
F l e x i b l e pump lowers operational costs Stork Pumps has announced t h e arrival of a new p u m p r a n g e - t h e flexible i m p e l l e r p u m p . The FIP h a s been so d e s i g n e d as to p r o v i d e an easy to h a n d l e positive displacement pump with self-priming characteristics. The p u m p offers b e t t e r s u c t i o n t h a n r o t a r y lobe d e s i g n s even when dry. The FIP p r o v i d e s a gentle p u m p i n g action, giving a uniform flow w i t h o u t pulsation. It is s u i t a b l e for a v a r i e t y o f p r o c e s s e s t h a t r e q u i r e careful h a n d l i n g . By r e g u l a t i n g t h e s p e e d of t h e p u m p u s e r s can also a p p l y t h e p u m p for dosing. There a r e four v e r s i o n s m a d e from different material: stainless steel - for g e n e r a l p u p r o s e non-hygienic applications; e p o x y - for a p p l i c a t i o n s requiring c h e m i c a l resistance; bronze - for p u m p i n g saltwater, m i n e r a l oil, slurries or a b r a s i v e liquids; s t a i n l e s s steel hygienic version for t h e food, d a i r y d r i n k s sectors, t e s t e d to FDA regulations. A 12 p a g e b r o c h u r e giving full specifications a n d c a p a c i t y d a t a is available. Contact: Stork Pumps Ltd, Meadow Brook Industrial Estate, Maxwell Way, Crawley, West Sussex RH10 2SA, UK. Tel: +44 1293 553495; Fax: +44 1293 524635.
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Double diaphragm p u m p s at the cutting edge
Verder h a s e n h a n c e d its range of p r o d u c t s by t h e l a u n c h of t h e new Verderair r a n g e of d o u b l e d i a p h r a g m p u m p s . Designed to be a t t h e l e a d i n g edge of ind u s t r i a l technology, t h i s positive d i s p l a c e m e n t , self p r i m i n g series of p u m p s is c o n s t r u c t e d
UIPMENT
EQ in t o p q u a l i t y m a t e r i a l s ; t h e p u m p s p r o v i d e s m o o t h reliable flow even u n d e r t h e t o u g h e s t conditions. The design of t h e new a i r valve p r o v i d e s fully nonstalling o p e r a t i o n , even a t low pressure, a n d is t o t a l l y oil-free. Pumping highly abrasive a n d / o r viscous m e d i a is m a d e p o s s i b l e by s o m e u n i q u e design features. A p a t e n t e d air valve guarantees high performance even u n d e r heavy d u t y conditions and the units are air p o w e r e d for use in l o c a t i o n s where electrical power could be a hazard. The e p o x y coating gives high levels of resistance. Screwed c h a m b e r s p r o v i d e safe o p e r a t i o n , a n d cast feed m o u n t ing p r e v e n t vibration. W e t t e d p a r t s a r e in acetyl, PP, kynar, a l u m i n i u m , cast iron o r s t a i n l e s s steel; t h e balls a n d / o r d i a p h r a g m a r e o f t)TFE, hytrel, s a n t o p r e n e , Viton, B u n a N, acetyl a n d s t a i n l e s s steel. Flows r a n g e from 0.1 to 1050 1/min at a m a x i m u m p r e s s u r e of 8.4 bar. Contact: Verder Ltd, Whitehouse Street, Leeds LS10 lAD, UK. Tel: +44 113 222 0250; Fax: +44 113 246 5649; E-mail: v e r d e r @ legend.co.uk
w i d e l y u s e d in t h e o f f s h o r e i n d u s t r y a n d known to p o s s e s s q u a l i t i e s t h a t m a k e it a n outs t a n d i n g alloy for u t i l i s a t i o n in shafts for valves, p u m p s etc. The m a t e r i a l is used m a i n l y for seaw a t e r a p p l i c a t i o n s a n d in o t h e r corrosive e n v i r o n m e n t s b e c a u s e of a c o m b i n a t i o n of corrosion r e s i s t a n c e a n d t h e s t r e n g t h of t h e material. In Nijkerek, The Netherlands, stocks are kept from 6 m m up to 100 m m d i a m e t e r . H a r t b.v. s p e c i a l i s e s in bar, p l a t e a n d piping p r o d u c t s in nickel alloys (Alloy 200, 400, 600, C276 etc.) as well as titanium, special stainless steel and o t h e r corrosion and heat resistant materials. Contact: Hart b.v., PO Box 144, 3860 AC Nijkerk, The Netherlands. Tel: + 31 33 2453848; Fax: + 31 33 2459875; E-mail: hartbv@ worldonline.nl
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Pump heads for zero dead volume applications
The new LF (Low Flow) p u m p h e a d s a n d Q661 s m a l l b o r e t u b i n g kits from Fluid Metering feature standard wetted materials of ceramic a n d f l u o r o c a r b o n Broadening the which provides a chemically choice o f shaft r e s i s t a n t fluid p a t h a n d millions alloys of t r o u b l e free cycles. Flow r a t e s a r e available from 0 to 0.10 m l / s t r o k e a n d 0 to 0.72 m l / s t r o k e H a r t b.v. h a s e x t e n d e d its s t o c k with r e p e a t a c c u r a c y of b e t t e r p r o g r a m m e w i t h r o u n d b a r in t h a n 0.1%. A l l o y K-500. A l l o y K-500 is The new LF h e a d s f e a t u r e
Low flow pump heads from Fluid Metering use ceramics for chemical resistance.
WORLD PUMPS AUGUST 1997
NEWS