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PFD2/PFS2 – OPERATING INSTRUCTIONS

 

 

INDEX 

DATE 

N° 

03 

26/06/01 

DC02020US 

 

8/11 

 

VI.3.3 – Replacing the central shaft and composite rings 

 
Follow the same steps described in V1.3.2 until 8) then: 
9)  Remove the central shaft (P/N 2761), 
10)  Remove the plastic caps (P/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 previous wear by O.rings, 
14)  Insert 4 new composite rings with tools from our tool kit (P/N KPFD2) as follows:  

• 

Each of the 4 shaft rings (P/N 7135F) is composed of two parts: one O.ring and one sleeve  
(Figure 1): 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Figure 1 

 

7135F 

Sleeve 

O.ring 

Inner side 

Outer side 

Содержание PFD2

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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