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PFD2/PFS2 – OPERATING INSTRUCTIONS

 

 

INDEX 

DATE 

N° 

03 

26/06/01 

DC02020US 

 

11/11 

 

VI.3.4 – Replacing the PTFE sleeves 

 
Follow the same procedure as for VI.3.3 and VI.3.4 until 14); after replacing the composite rings, 
remove the PTFE sleeves (P/N 7220) from the groove with a blunt pointed instrument. Clean and re-
assemble the new part. 
 

NB

: PTFE sleeves are only compatible with pumps of series 3. A pump that was not originally fitted 

with PTFE sleeves can be equipped with sleeves. In this case, you need to change the plates 
(P/N 2741 and 2746). 
 

VI.3.5 – Replacing the bellow and body O.rings 

 

After removing the bellows (see V1.3.2, step 8), remove the bellow Viton O.rings (P/N 2724) and the 
body O.rings (P/N 2738 or 2588). Then carefully replace the new ones 

without scratching the 

surface of the bellow (P/N 2760 or 2760S) or housing (P/N 2748 or 2748G). 

 

VI.3.6 – Replacing the manifold O.rings 

 

Follow point VI.3.2 steps 3) and 4). Carefully replace the manifold O.rings (P/N 2464). Take care as 
these parts are fragile,

 especially the elbow connectors. 

If your pump is marked with "

W

", change the manifold seals (P/N 2587) and retighten progressively 

with a strap wrench.

 

 

NB

: This chapter does not concern  PFD/S2…

pumps that have no manifold seals. 

 

VI.3.7 – Replacing other parts 

 

When dismantling the pump or control unit for service, components found damaged should 
be replaced. Alternatively, the pump/control unit can be returned to your distributor or SGPPL 
ASTI for examination, estimate, and repair.  
 
Important

: Please indicate what chemical was handled, the frequency of use, and the reason for 

returning the pump. 
 
A receipt note "Conditions of use" is at your disposal. Do not hesitate to ask for it when needed. 
An estimate for repair will be proposed to you and the pump will be returned to you within one week 
from date of its acceptance. 
 

VII – Warranty 

 

SGPPL ASTI pumps and accessories are warranted for all parts and labor against faulty workmanship 
(return to factory) for one year from delivery date (9000 hours of use). 
 
SGPPL ASTI is not responsible for damage to its products through improper installation, 
maintenance, use or attempts to operate them beyond their mechanical capacity, intentionally or 
otherwise, or for unauthorized repair. 
 
SGPPL ASTI shall not be liable for any indirect, special, incidental or consequential damages 
resulting from the use, failure or malfunction of any product. 

® Teflon and Kalrez Du Pont's registered trademarks

 

™ AstiPure Saint-Gobain Performance Plastics Asti trademark

 

Summary of Contents for PFD2

Page 1: ...uarters Factory 41 boulevard des Bouvets E A D A C des Berthilliers F 92741 NANTERRE CEDEX F 71850 CHARNAY LES MACON Tel 33 0 1 55 68 59 59 Tel 33 0 3 85 20 27 00 Fax 33 0 1 55 68 59 68 Fax 33 0 3 85...

Page 2: ...5 V 1 Trouble shooting V 2 Preventive maintenance V 2 1 Continuous operation V 2 2 Intermittent operation V 3 Comments VI Dismantling and Repair 6 VI 1 How to dismantle VI 2 Examination VI 3 Stripping...

Page 3: ...e from one side of the pump to the other The pump is self priming and has four balls which seat on lip seals check valves The pumping frequency of a bellows pump is much slower than an equivalent diap...

Page 4: ...arrangement drawing see appendix APP 2 EXT This drawing also shows the overall dimensions of the pump etc The pump must be positioned on its feet If not the check valves will not seat correctly and t...

Page 5: ...the speed by adjusting the needle valve Before using the pump with chemicals please check The body rings P N 2742 and the 4 manifold nuts are tight The air nitrogen supply is dry clean and between 29...

Page 6: ...lter recirculation systems Pharmaceuticals and Chemicals Chemical injection and sampling IV 5 Limitations of use The standard pumping speed of the PFD2 PFS2 is about 120 strokes min The following shou...

Page 7: ...lways be replaced together During routine maintenance checks examine the following parts and change them if necessary Bellows P N 2760 PFD or 2760S PFS Shuttle valve P N 2701 Viton bellow O ring P N 2...

Page 8: ...0 2 Replace with a new factory assembled shuttle valve P N 2701 3 Carefully tighten the 2 fastening screws Do not overtighten 4 Test with compressed air nitrogen Re tighten if necessary VI 3 2 Replaci...

Page 9: ...N 1028 11 Remove the 4 C PEEK plate screws P N 2729 12 Remove the 4 composite rings P N 7135F from plates P N 2741 and 2746 13 Clean the plates and the core P N 2740 by removing the dust from previou...

Page 10: ...he ring against the O ring positioning tool P N 1641 and insert it in the groove To install the ring on the outer side Figure 3 insert the shorter side of the O ring positioning tool through the inner...

Page 11: ...operation for the 4 sets of rings 15 Fit the plates and the body rings P N 2742 on the core tighten moderately the screws P N 2729 insert first the O ring P N 1720 under the screw head 16 Fit new pla...

Page 12: ...nch NB This chapter does not concern PFD S2 G pumps that have no manifold seals VI 3 7 Replacing other parts When dismantling the pump or control unit for service components found damaged should be re...

Page 13: ...Z BODY O RING 2 2 2740 CORE 1 1 2741 H BLADED PLATE 1 1 2742 BODY RING 2 2 2742T PFD2 TEFZEL BODY RING 2 2 2746 V BLADED PLATE 1 1 2747 STOP PLUG 1 1 2748 PFD2 PFA BODY 2 2 2748G PFD2 TG PFA BODY 2 2...

Page 14: ...BODY O RING 2 2 2759 PFD2 LIP SEAL 4 4 2760 PFD2 BELLOW WITH INSERT 2 2 2761 CENTRAL SHAFT 1 1 6512 BALL VALVE 20 4 4 7135F SHAFT COMPOSITE O RING 4 4 7139 PNEUMATIC VITON O RING 6 7185 1 4 EXHAUST S...

Page 15: ...E SCREW 2 2759 PFD2 LIP SEAL 4 2760 PFD2 BELLOW WITH INSERT 2 2761 CENTRAL SHAFT 1 6512 BALL VALVE 20 4 7135F SHAFT COMPOSITE O RING 4 7139 PNEUMATIC VITON O RING 6 7185 1 4 EXHAUST SILENCER 2 7220 PT...

Page 16: ...CE DATE DESIGNATION FM 18 06 01 ASTIPUR m 01 leva Bouvets F Nanter Cedex FRANCE Te 0 0 1 1 2 3 1 1 Fa 4 0 0 1 1 2 3 1 2 3 2740 A 4 N 4 O K 2 4 4 5 4 G 4 P 4 F 4 H 4 6 4 M 4 4 D 4 2 1 4 6 4 1 F C B E 2...

Page 17: ...Shuttle valve B V bladed plate C H bladed plate D Stopper E Central shaft F Bellow G Manifold O ring H Body O ring I Lip seal J Inlet manifold K Outlet manifold L Nut M Cap N Exhaust silencer O Body r...

Page 18: ...PURE 2 APP 2 EXT 00 S S S SG G G GP P P PP P P PL L L L A A A AS S S ST T T TI I I I 41 Boulevard des Bouvets F 92741 Nanterre Cedex FRANCE Tel 33 0 1 55 68 59 59 Fax 33 0 1 55 68 59 68 152 3mm 5 99 2...

Page 19: ...iPure PFD2 pump flow rate characteristics 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 250 450 650 850 1050 1250 1450 Flow rate l h Discharge head bar Air supply 5 bar Air supply 4 bar Air supply 3 bar Air supply 2...

Page 20: ...Pure PFS2 pump flow rate characteristics 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 0 200 400 600 800 1000 1200 1400 Flow rate l h Discharge head bar Air supply 5 bar Air supply 4 bar Air supply 3 bar Air supply 2...

Page 21: ...SG G G GP P P PP P P PL L L L A A A AS S S ST T T TI I I I 41 Boulevard des Bouvets F 92741 Nanterre Cedex FRANCE Tel 33 0 1 55 68 59 59 Fax 33 0 1 55 68 59 68 VANNE DE REGLAGE VALVE VANNE D ARRET ST...

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