Welch 2560, Owner'S Manual

Page 1: ...r organic vapors or gases WARNING Be sure to properly identify intake and discharge before using pump See section 2 5 Welch Rietschle Thomas 7301 North Central Avenue Skokie IL 60077 Phone 847 676 8800 Fax 847 677 8606 E Mail welchvacuum thomasind com Part No 67 0974R2 8 Web Page www welchvacuum com Printed in the U S A ...

Page 2: ...ons are found where failure to observe the instruction should result in damage to the equipment associated equipment and process These units conform to the SI International system of units of measurement The following symbols with recommendations of IEC1010 of warning will be found on the pump Caution refer to accompanying documents Caution risk of electrical shock Caution hot surface WARNING Moto...

Page 3: ...n 6 Specifications Speed Curves Dimensional Drawings Parts List and Exploded View Application Information Warranty Welch Rietschle Thomas Read and understand the following information and instructions included with your Welch Dry Vacuum Pumps before using This information is for your safety and to prevent damage to the pumps 3 ...

Page 4: ...tential of the pump head bursting and causing possible injury to personnel in the area I 17 All electrical products generate heat To avoid serious burns never touch unit during or immediately after operation I 18 Be sure to properly identify intake and discharge before using pump See Section II 5 I 20 CAUTION To reduce risk of electrical shock I 21 Do not disassemble Disassembly or attempted repai...

Page 5: ...rect or indirect moisture contact The pump should be located as closely to its system in order to utilize it most efficiently The pump is rated for indoor use only Maximum altitude 2000 meters Operating temperature range 5 C to 40 C Maximum relative humidity of 80 for temp up to 31 C decreasing to 50 at 40 C Rated for 10 of supply voltage Pollution Degree2 Installation Category II WARNING Don t op...

Page 6: ...ir or replacement of the cord or plug is necessary do not connect the grounding wire to either flat blade terminal The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire Check with a qualified electrician or serviceman if the grounding instructions are not completely understood or if in doubt as to whether the product is properly grounde...

Page 7: ...d for a Trap The pumps will handle humid air All wetted aluminum parts are treated for corrosion protection from moisture All other wetted parts are stainless steel If there is a chance liquid may be drawn from the process under evacuation Welch recommends a liquid trap be placed between the process and the pump A simple liquid trap is a filtering flask When a heavy load of water vapor is evolved ...

Page 8: ...tection The importance of eliminating all leaks in a vacuum system is obvious The pump must remove this added volume of leaked gas to maintain the desired vacuum Leaks for these pumps can be located by slightly pressuring the system and painting the suspected area with a thick soap solution Escaping air will produce soap bubbles 3 14 Operating Pressure Range Models 2560 2561 2565 2580 2581 and 258...

Page 9: ...apability This can be accomplished by blocking of the intake and reading the vacuum level on the gauge See Section 2 8 5 11 Troubleshooting Guide g n i p m u P r o o P d e e p S m u u c a V r o o P t i n U d u o L e l b i s s o P s e s u a C n o i t c A e v i t c e r r o C X X X d e g a m a D s e v l a V s e v l a v r e p p a l f e c a l p e R X X X n i s i r b e D s e v l a V d n a s i r b e d e ...

Page 10: ... o i s n e m i D l g n i p p i h S m c n i L m c n i W m c n i H 5 9 4 5 9 1 0 2 5 5 0 2 6 0 4 0 6 1 5 9 4 5 9 1 0 2 5 5 0 2 6 0 4 0 6 1 5 9 4 5 9 1 0 2 5 5 0 2 6 0 4 0 6 1 5 9 4 5 9 1 0 2 5 5 0 2 6 0 4 0 6 1 5 9 4 5 9 1 0 2 5 5 0 2 6 0 4 0 6 1 5 9 4 5 9 1 0 2 5 5 0 2 6 0 4 0 6 1 r e b m u N g o l a t a C h P 1 z H 0 6 V 5 1 1 r o f d e r i W g u l P V 5 1 1 n a c i r e m A N h t i W 1 0 B 0 6 5 2...

Page 11: ...6 11 Pumping Speed Curves 11 ...

Page 12: ...7 9 0 3 5 7 0 0 5 4 5 7 0 0 5 3 0 0 6 5 6 5 2 5 2 1 1 5 7 8 0 5 6 5 2 5 0 0 0 1 5 2 8 0 0 7 2 6 6 8 8 2 1 8 0 8 8 3 1 8 0 0 5 3 5 6 5 0 8 5 2 5 2 3 1 9 6 1 1 0 6 7 5 2 5 0 5 0 1 0 5 8 0 5 9 5 7 8 6 0 3 5 7 0 7 2 5 7 0 0 5 4 0 0 6 1 8 5 2 0 5 2 1 0 0 2 1 0 6 7 5 2 5 0 5 0 1 0 5 8 5 8 8 0 5 8 6 0 3 9 5 0 7 2 9 5 0 0 5 4 0 0 6 5 8 5 2 0 0 2 1 9 6 1 1 7 3 7 5 2 5 0 5 0 1 0 5 8 0 5 9 5 7 8 6 0 3 5 7 0 ...

Page 13: ... t i K e c i v r e S t e e F 4 0 K 0 0 5 2 1 1 0 K 5 6 5 2 y l b m e s s A d o R g n i t c e n n o C 1 2 2 6 2 7 8 1 6 w e r c S e l d n a H 2 2 3 4 1 3 3 1 6 e b u T r o t c e n n o C g n i R O 2 4 4 4 5 1 3 3 1 6 w e r c S d a e H 0 1 0 1 5 2 0 K 5 6 5 2 y l b m e s s A e t a l P e v l a V 2 2 6 6 1 3 3 1 6 e t a l P e v l a V g n i R O 2 2 2 7 7 1 3 3 1 6 r e d n i l y C g n i R O 2 2 2 8 C 2 1...

Page 14: ... F 4 0 K 0 0 5 2 1 3 0 6 3 1 6 p u C n o t s i P 2 2 2 4 0 6 3 1 6 w e r c S r e n i a t e R p u C 2 2 3 1 4 4 3 1 6 e v e e l S r e d n i l y C 2 2 4 2 5 0 1 2 6 t e k s a G g n i R O 2 2 2 5 7 0 6 3 1 6 w e r c S d a e H 6 6 6 8 8 2 0 6 6 e g a t S e k a t n I e v l a V e k a t n I 1 1 1 7 9 8 2 0 6 6 e v l a V t s u a h x E e k a t n I e g a t S t s u a h x E d n a e k a t n I 3 3 3 8 0 5 0 1 2...

Page 15: ... t i K e c i v r e S t e e F 4 0 K 0 0 5 2 1 1 0 K 5 6 5 2 y l b m e s s A d o R g n i t c e n n o C 1 2 2 6 2 7 8 1 6 w e r c S e l d n a H 2 2 3 4 1 3 3 1 6 e b u T r o t c e n n o C g n i R O 4 4 4 4 5 1 3 3 1 6 w e r c S d a e H 0 1 0 1 5 2 0 K 5 6 5 2 y l b m e s s A e t a l P e v l a V 2 2 6 6 1 3 3 1 6 e t a l P e v l a V g n i R O 2 2 2 7 7 1 3 3 1 6 r e d n i l y C g n i R O 2 2 2 8 C 2 1...

Page 16: ... l a e S 4 0 K 5 8 5 2 t i K e c i v r e S t e e F 4 0 K 0 0 5 2 1 1 0 K 5 8 5 2 y l b m e s s A d o R g n i t c e n n o C 2 2 2 3 7 3 0 1 6 e t a l P e v l a V g n i R O 2 2 2 3 4 7 3 0 1 6 e b u T r o t c e n n o C g n i R O 2 4 4 4 5 7 3 0 1 6 w e r c S d a e H 8 8 5 0 6 1 0 6 6 p u C n o i t c u S t e e F 4 4 6 2 0 K 5 8 5 2 y l b m e s s A e t a l P e v l a V 2 2 7 6 8 2 3 1 6 r e d n i l y C...

Page 17: ... 0 5 2 2 8 5 2 0 6 6 p u C n o t s i P 2 2 4 4 8 2 0 6 6 e v e e l S r e d n i l y C 2 2 5 6 8 2 3 1 6 r e d n i l y C g n i R O 2 2 6 0 9 2 0 6 6 e v l a V e k a t n I e g a t S e k a t n I 1 1 1 8 1 7 2 0 6 6 e v l a V t s u a h x E 2 2 2 0 1 4 2 6 3 2 6 e t a l P e v l a V g n i R O 2 2 2 3 1 6 7 2 0 6 6 e b u T r o t c e n n o C g n i R O 2 2 2 4 1 5 7 3 0 2 6 w e r c S d a e H 8 8 8 1 1 9 2 0...

Page 18: ... l a e S 4 0 K 5 8 5 2 t i K e c i v r e S t e e F 4 0 K 0 0 5 2 1 1 0 K 5 8 5 2 y l b m e s s A d o R g n i t c e n n o C 2 2 2 3 7 3 0 1 6 e t a l P e v l a V g n i R O 2 2 2 3 4 7 3 0 1 6 e b u T r o t c e n n o C g n i R O 4 4 4 4 5 7 3 0 1 6 w e r c S d a e H 8 8 5 0 6 1 0 6 6 p u C n o i t c u S t e e F 4 4 6 2 0 K 5 8 5 2 y l b m e s s A e t a l P e v l a V 2 2 7 6 8 2 3 1 6 r e d n i l y C...

Page 19: ...tions By turning clockwise the screw located on top of the orifice the vacuum level can be dropped to as low as 27 6 The deeper vacuum is particulary useful for removing sticky or viscous substance If you close off the orifice please keep in mind this will lead to restart problems if you are turning off then imediatly turning on the pump If you encounter a restart problem after closing the orifice...

Page 20: ...s of similar size This makes the 2561 and 2581 an economical oil free solution for replacing oil seal rotary vane pumps These pumps are therefore highly recommended for standard duty laboratory applications general vacuum work and where quick roughing of a chamber is needed The 2581 and 2561 pump Models are for use in standard duty applications This means that they are not recom mended for pumping...

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Page 22: ... than replaced The warranty is effective for one year from the date of original purchase when 1 The warranty card has been completed and returned 2 The product is returned to the factory or other designated service centers freight prepaid 3 The product in our judgment is defective through no action or fault of the user If the product has become defective through misuse abuse alteration or ingestio...