VANTON 267613 Flex-I-Liner Rotary Peristaltic Pumps Instruction Manual

VANTON 267613 Flex-I-Liner Rotary Peristaltic Pumps Instruction Manual

OPERATING INSTRUCTIONS AND GENERAL MAINTENANCE

FLEX-I-LINER® CC-2 through 60B SERIES PUMPS

GENERAL

All Vanton CC-B series pumps, having been carefully assembled and fully tested, are ready for immediate use. Just connect the product lines to the pump, provide the proper electrical connection, and bolt down, if desired, and the pump is ready. The use of flexible tubing between the piping and the pump terminals is highly recommended.

Each pump has been engineered for a specific application. The Vanton Engineering Department should be consulted in order to determine the suitability of the materials of construction for other applications.

MAINTENANCE

The pump is equipped with a Gits type oiler to permit occasional relubrication of the flex-i-liner interior, using Vanton pump oil or pure silicone oil of 1000 centistokes viscosity. If the pump is used in continuous service, add a small amount of this oil each week (about 7 drops), less often for less severe service. This servicing is accomplished by stopping the pump, raising the springloaded cover of the Gits oiler and adding the oil. CAUTION: Ordinary organic oil must not be used. Use VANTON PUMP OIL or PURE SILICONE OIL. Special lubricants are available when silicone must be avoided. The Vanton pump employs relubricatable ball bearings in the bracket which have been prelubricated at the factory. These bearings should be regreased with high quality NLGI Nos. 2 Multi-purpose ball bearing grease after approximately 250 hours of operation.

REPAIRS

Usually, the repair of the Vanton CC-B pump is an extremely simple procedure. After long use or severe service, the flex-i-liner (Item 4) may become worn or break. Replacement of this part restores the pump to its original performance. The steps for doing this are outlined as follows:

Refer to Drawing #D-100301-30-0 and # A-100326-240-1.

A. Liner Replacement

1. Obtain the following items: 1/2″ open end wrench, or box wrench, or socket with ratchet lever
2. Remove four bolts (Item 14) using the 1/2″ wrench or socket.
3. Remove cover plate (Item 1).
4. Remove expansion ring from the now exposed flex-i-liner (Item 17).
5. Grasp the body block (Item 2) and pull it away from the bracket (Item 30).
6. Remove the worn flex-i-liner from within the body block.
7. Install new flex-i-liner; clean all chemicals from exposed parts of pump.
8. Apply a liberal amount of Vanton pump oil to the inside of the flex-i liner. Spread this oil over the interior surfaces to the very edge.
9. Push the body block back on to the bracket. Shaft should be rotated at the same time that pressure is being applied to the block until it is “home.” This will allow the flex-i-liner to seat over the pilot of the bracket. It is suggested that the shaft be left in top dead center position once the block has been pushed “home.” If the flex-i-liner is properly seated, the block will remain close to the bracket when hands are removed from the block. If improperly seated, the block will spring back from the bracket. Failure to have flex-iliner properly seated prior to taking the next step will result in flex-i-liner crimpage and improper pump performance.
10. “Snap” expansion ring into flex-i-liner.
11. Replace cover plate.
12. Replace the four bolts and tighten each a little at a time, like one tightens a tire rim. Rotate shaft a number of times before bolts are drawn tight.

The pump is ready for use. Usually, the foregoing will be the only maintenance required because of the built-in protection features of the CC series pump.

Should the bracket assembly require repair, the following procedure should be adhered to:

B. Bracket Disassembly

1. Remove body block, casing cover plate, four bolts and support bracket as described in the foregoing paragraphs.
2. The entire assembly remaining on the motor should then be detached from the motor by removing four socket head cap screws (Item 12) along with their shake proof washers (Item 11) and then loosening the coupling set screw (Item 10). Tap subassembly gently to remove.
3. Remove flexible coupling by tapping out the groove pin (Item 8) and then withdrawing coupling from pump shaft. The shaft (Item 26) can then be pressed out of the bracket (Item 7) by tapping or pushing on the coupling end out of the bearing inner race. The bearings remain in the bracket at this point. An arbor press will facilitate this operation.
4. When the shaft is pressed out it will still be assembled to the rotor (Item 19), the rotor bearing (Item 20), the bearing guard (Item 23), bearing guard spacer (Item 22), and retaining ring (Item 3).
5. Remove plastic plug (Item 16) from rotor. The rotor retaining ring (Item 18) can be extracted usingsnap ring pliers. The shaft can now be pressed out of the rotor.
6. Remove from the plastic rotor the bearing guard (Item 23), bearing guard spacer (Item 22), the bearing retaining ring (Item 3).. Use snap ring pliers to remove the bearing retaining ring.
7. Using a 11/16″ diameter rod, press out outboard bearings (Item 5) and bearing spacer (Item 6) from the bracket (Item 7).
8. Remove the bearing shims (Item 24) from the bracket. The pump is now completely disassembled.

C. Assembly

1. Attach the flexible coupling to the shaft using the groove pin (Item 8).
2. Install onto this shaft the bearings (Item 5) and the bearing spacer (Item
3. Make sure the outermost outboard bearing rests firmly against the coupling shoulder and that the bearing shields face the ends of the shaft.
4. Install shims (Item 24) into bracket and insert the shaft/bearing subassembly into the bracket.
5. The rotor (Item 19) should be completely outfitted with the rotor bearing (Item 20), bearing guard (Item 23), bearing guard spacer (Item 22), and retaining ring (Item 3) prior to installation onto the shaft which was previously installed into the bracket.
6. The rotor should be installed onto the eccentric portion of the shaft protruding through the bracket. Do this by setting the rotor on end, then lowering the shaft into the rotor. Using a 1/2″ x 5″ long rod that has been inserted through the coupling, gently tap the inserted 1/2″ rod or use an arbor press until rotor is “home”.
7. Install rotor retaining ring (Item 18)
8. Measure distance from bracket face to the to the end of the rotor as shown in Dwg. No. A-100326-240-1. If rotor height is not within specifications on Dwg. No. A-100326-240- 1, remove shaft subassembly from bracket and adjust the number of shims in the bracket to obtain the specified rotor height. Repeat Steps 1 through 6 until the specified rotor height is obtained.
9. Replace plastic block with flex-i-liner (Item 16) as previously described. The subassembly can then be bolted to the motor and while this operation is not particularly critical due to the unique coupling employed, nonetheless, good practice dictates that the faces of the bracket and the motor, which are to be bolted together, be clean and free from burrs.

SUPPLEMENTARY INSTRUCTIONS FOR SERVICING

Except for a greater overall length, this pump is essentially the same as the following models: CC-2B, CC-6B, CC-12B, CC-18B and CC-30B.

Refer to Drawing #D-100302-60-4. Important differences include:

1. The first outboard bearing (Item 34) on the above mentioned drawings is of extra heavy duty double roll construction, and although counterpart bearings used on other Vanton CC series pumps are interchangeable with this bearing, they should not be substituted for the specified bearing due to the heavier loads encountered during operation.
2. The bearing spacer (Item 6) is somewhat narrower due to the greater width of the first outboard ball bearing.
3. The interior of the rotor (Item 5) contains one extra part–the bearing guard extension (Item 36).
4. The rotor bearing (Item 20) is of heavy-duty double roll construction and not interchangeable with the ball bearing used in the remainder of the CC series.
5. The size CC-60B pump employs a 1/2 HP motor, the remainder of the pumps in this series employ 1/4 HP motors.

Even though the pump contains additional parts, the method of disassembly and assembly is identical to the instructions supplied for the CC-2B through CC- 30B series and should be closely adhered to.

INSTRUCTIONS FOR REPLACING THE LINER IN THE VANTON FLEX-I-LINER® PUMP

The Vanton Flex-i-liner pump, a precision engineered product assembled and tested at the factory, is shipped to the user ready for immediate service. It is available in the two basic models shown at right and in ten sizes for flows from 1/3 to 45 GPM, discharge pressures to 45 psig, and for use at temperatures to 250°F Regardless of model or size, the procedure for replacing the elastomeric lines is identical. When it becomes necessary to change the flexible liner, follow the 3 simple steps described on the back side of this sheet to insure maximum liner life and pump performance.

The Vanton Flex-i-liner pump has relatively few parts and, as a result, requires a mini-mum of maintenance or parts replacement. Only two non-metallic components, the body block and flexible liner, are in contact with the fluid being pumped.

Step 1
Disassemble the pump by removing the four bolts holding the cover plate to the pump body block. Then remove the expansion ring and pull the body block away from the pedestal or bracket. Slip the flexible liner out of the body block. Check to make sure bearings are operating freely. If they are not, see the appropriate maintenance manual for instructions.
Liberally wipe Vanton silicone oil on the inside diameter and the outside surfaces of the new liner, as well as on the rotor.

Step 2
Grasp and squeeze the lubricated liner and insert it into the body block keeping part of the liner exposed as shown. The object is to push the liner assembly truer the rotor and metal boss. It is suggested that the shaft be left in top center position once the block has been pushed “home.”

Dimensions

ROTOR HEIGHT IS ADJUSTED BY ADOING OR SUBTRACTING SHIMS FROM BEHIND THE FIRST OUTBOARD BEARING.

THICKNESS OF EACH SHIM IS .010″

TROUBLESHOOTING GUIDE FOR FLEX-I-LINER® PUMP

Possible Cause

|

Recommended Solution

---|---
PI MP FAILS TO PRIME
A. Excessive air leakage.                    I| Tighten all hose clamps and connections. Check body block for cracks.
B. Fluid passage completely dry.| Pump may require priming dry upon initial start-up. It will self-prime thereafter.
C. Excessive suction conditions.| Pump may not be of sufficient capacity. Reduce lift or install larger pump.
PUMP FAILS TO DELIVERY RATED CAPACITY
A. Reduced motor speed.| Check operating speed for sizes 2-60B which should be 1750 RPM; for sizes 90 and 120, it should be 1200 RPM. For sizes 180 and 240, it should be 1750 RPM.
B. Restricted lines.| Check ID of suction and discharge lines. This should be as recommended for specific model.
C. Excessive air leakage.| Tighten all clamps and connections. Check body block for cracks. Check for proper installation of flexible liner.
D. Excessive discharge pressure or suction lift.| Check with gauge at pump against model as rated.
E. Viscosity of fluid too high for size and length of suction line.| Use larger pump. Increase diameters of feed and discharge lines. If fluid is too viscous, slower pump RPM may result in better capacity. For highly viscous fluids, a positive suction may be required. Where significant viscosity exists, expect lower flow regardless of other conditions.
F. Deformation, swelling of the flexible liner or reduced flow.| Check original material recommendation for chemical compatibility. Note: Viton-A, Butyl, and Buna-N liners will generally give lower flows than Neoprene, Hypalon, Nordel or Natural Rubber.
OVERLOADED MOTOR
A. Replace bearings frozen.| Replace pump bearings on first sign of stiffness. Check condition of liner.
B. Rotor off center grinding on expansion ring or coverplate.| Check bearing retaining rings to be sure they are in place and properly seated. Install shaft and rotor assembly in central position by shim rearrangement on either side of pedestal bearings.
EXCESSIVE VIBRATION AND NOISE|
A. Rigid connections.| Use flexible connections. If customer requires rigid connections, add 5′ sections of flexible hose at suction and discharge. Dampeners may prove helpful.
B. Sharp line-bends.| Make changes in fluid flow lines gradually to avoid hose collapse.
C. Misalignment.| Check coupling alignment with straight edge.
D. Improper coupling.| Use flexible coupling to ensure correction for slight misalignment.
E. Flimsy base and pump stand.| Use channel iron or heavy gauge steel base. Shock mounts or rubber pads where required may be employed.
F. Starved pump.| Check for insufficient fluid supply or excessive suction lift that would result in fluid vaporization.
G. Excessive discharge pressure.| Check with gauge at pump. Look for closed lines. The Flex-I-liner pump is not designed for high-pressure applications.
PREMATURE FAILURE OF FLEXIBLE LINER
A. Chemicals attack liner.| Check original recommendation and if pump is being used for stated application.
B.  Glass or sharp particles imbedded in liner.
C. Highly abrasive materials.| Use Vanton strainer in suction line.
Inspect fluid for solids content. Operate pump at reduced RPM. Relationship between fluidity and solids content should be evaluated.
D. Excessive discharge pressure.| Check with gauge at pump. Make sure pump is not operating against an excessive head or closed valve. For continuous operation, lower half of pressure range should be maintained.
E. Frozen bearings.| Replace worn or damaged bearings. Lubricate bearings via grease fitting per manual instructions.
F. Fracture near liner flange.| Check motor shalt for excessive side play or improper rigid coupling which may transmit excessive force to pump shaft. Check for sharp edges on fluid passage of body block.
C. Improper installation.| Be sure that liner flanges are not crimped and that they are flush to sides of body block. Proper installation will display unbroken circular concentric indentation on the outer surface of flanges. Obtain special Flex-1-
H. Faulty rotor.| Check whether rotor wobbles on the center bearing that could cause uneven wear on the liner. If chemical contact has scored the rotor, it must be made smooth before another liner is installed.
I. Lack of liner lubrication.| Be sure that Vanton silicone oil is applied liberally to interior surface of liner at time of installation. Thereafter, follow manual for preventive maintenance procedure.
CRACKED BODY BLOCK
A. Excessive tightening of fittings.| Care should be taken in tightening hose fittings. The use of Teflon tape is recommended.
B. Misaligned piping.| Be sure that pump body block and fitting are notwith­standing excessive bending forces.
C. Excessive weight of unsupported lines.| Use extra line supports to reduce load.
D. Body block material not suitable for application.| Check original recommendation and if pump is being used for stated application.
E. Use for metal fittings. LEAKAGE| Plastic fittings only are recommended except for stainless steel body blocks.
A. Pumped fluid leaks from oil cup or weep hole.| Flush and disassemble pump, oil bathe all parts, and examine part to determine reason for liner failure.
B. Leakage between end plate and body block.| Be sure that body block bolts have been tightened properly. Check for proper installation of liner and expansion ring.
C.Leakage about terminal.| Look for stripped threads, improper sealing or cracks. Avoid excessive tightening.

SAFETY PRECAUTIONS TO BE OBSERVED WHEN INSTALLING, OPERATING AND SERVICING VANTON FLEX-I-LINER SERIES PUMPS

1. Always wear appropriate eye protection, gloves and clothing when near or servicing pumps. Flex-I-Liner pumps are often used to transfer corrosive and hazardous fluids and care should be taken to avoid direct contact.
2. Always disconnect power before any inspection or service is performed.
3. Use of flexible pipe or tubing is recommended to minimize pulsation or vibration being introduced into ridged or stationary piping.
4. Before starting the pump, check to see that all connections are tight and leak-free. It is strongly recommended that the pump and piping system be tested first with water before attempting to handle corrosives.
5. Drain and flush the pump with water before performing any service, handling the liner or other wetted components. It is likely that the pumped fluid will become entrapped within the pump during operation. Always exercise appropriate care when handling corrosive fluids.
6. Check motor rotation before putting the pump is service.
7. Install guards over coupling area before starting pump.

Contact Us

VANTON PUMP & EQUIPMENT CORP.
201 Sweetland Avenue
Hillside, N J 07205-1793
Tel: 908-688-4216
Fax: 908-686-9314
http://www.vanton.com
e-mail: mkt@vanton.com

References

• Vanton Thermoplastic Pumps and Systems solve corrosive, abrasive and ultrapure pumping problems

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