Saint Gobain Vidros PFD4, PFS4 User Manual

PFD4/PFS4 – OPERATING INSTRUCTIONS

PUMP

PFD4/PFS4

OPERATING INSTRUCTIONS

SAINT-GOBAIN PERFORMANCE PLASTICS ASTI SAINT-GOBAIN PERFORMANCE PLASTICS ASTI
(Headquarters) (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) 3.85.29.18.48

SAINT-GOBAIN PERFORMANCE PLASTICS

7301 Orangewood Avenue

GARDEN GROVE, CA 92841

Phone: [phone]

Fax: [phone]

http://www.astipure.com - http://www.plastics.saint-gobain.com

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PFD4/PFS4 – OPERATING INSTRUCTIONS

INDEX Page

I – General 2
I.1 – Introduction
I.2 – Materials
I.3 – Operation
I.4 – Pump Data

II – Quick checklist 2
II.1 – Shipment
II.2 – Receipt

III – Installation and operation 3
III.1 – Testing
III.2 – Set up
III.3 – Connections
III.3.1 – Air/Nitrogen connections
III.3.2 – Fluid connections
III.4 – Tests and controls

IV – Applications
IV.1 – Chemical compatibility 4
IV.2 – Contamination
IV.3 – Temperature range
IV.4 – Applications
IV.5 – Limitations of use

V – Maintenance 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 7
VI.1 – How to dismantle
VI.2 – Examination
VI.3 – Stripping and assembling the pump
VI.3.1 – Replacing the shuttle valve system
VI.3.2 – Replacing the bellows
VI.3.3 – Replacing the central shaft and shaft O.rings
VI.3.4 – Replacing the bellow and body O.rings
VI.3.5 – Replacing the manifold O.rings
VI.3.6 – Replacing other parts

VII – Warranty 8

Appendix: Spare parts list
Maintenance kits
Section view (Drawing “APP 4 REF”)
Part Numbers Table (“APP 4 REF”)
General arrangement drawing (Drawing “APP 4 EXT”)
Flow rate/discharge pressure curves
Pneumatic diagram (Drawing “APP 4 CAB”)

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PFD4/PFS4 – OPERATING INSTRUCTIONS

Thank you for choosing our SAINT-GOBAIN PERFORMANCE PLASTICS ASTI AstiPure™ model
PFD4 pump, series 3 (or PFS4: slurry applications).

I – General

I.1 – Introduction

The model PFD/PFS is a pneumatically operated TEFLON® pump. There are no internal or external
metal parts.
The pump is designed for handling corrosive, inflammable, and sterile fluids. It meets the
requirements of the semiconductor, pharmaceutical and chemical industries.

I.2 – Materials

All wetted parts are manufactured in TEFLON® PFA HP and PTFE.
Other parts are made of high-tech plastics such as PVDF, PEEK etc.

There are no metal parts.

I.3 – Operation

The pump is pneumatically operated; two bellows joined by a central shaft reciprocate horizontally.
The suction and delivery strokes alternate 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 diaphragm pump and
results in an extended life for the bellows.
Pulsation dampers with wetted parts in TEFLON® PFA and PTFE are available as an option. This
dampens the pulse by approximately 65 to 80%.
The pulsation damper for the PFD4/PFS4 pump is AMC4/AMS4.

I.4 – Pump data

Flow rate 25 GPM (6000 L/h)
Discharge pressure 58 PSI (4 bar)
Suction head 13 feet water column (4 m)
Max. air consumption 23.5 SCFM (40 m³/h) TPN.
Fluid connection TEFLON® tubing ∅ 7/8”x1” (22x25 mm) or flange PN 10 DN 25.
Air connection. 1/2" gas
Tubing ∅ 3/8”x1/2” (10x13 mm) maximum
10 feet (3 m) < length < 16 feet (5 m)
Leak detector connection M8
Weight 32 lbs (15 kg)

Our range also includes three other models with their optional pulsation dampers:
PFD1/PFS1 Flow rate 2.5 GPM (10 L/min) AMC1/AMS1

PFD2/PFS2 Flow rate 5 GPM (20 L/min)) AMC2/AMS2
PFD3/PFS3 Flow rate 12.5 GPM (50 L/min) AMC3/AMS3

II – Quick checklist

II.1 – Shipment

Pumps are cleaned and assembled in our clean room, then double sealed in plastic bags to ensure
they are not contaminated in transit. They are then packed in cartons with Polyethylene protection.

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PFD4/PFS4 – OPERATING INSTRUCTIONS

II.2 – Reception

Upon receipt of the pump, please check that:

• The carton has not been damaged in transit. If there is any visible damage, immediately contact
the carrier.

• The pump is not damaged. If there are signs of damage, you should report this immediately to
SGPPL ASTI or your local distributor.

• An operating instruction manual has been included in each package. Please request another copy
if it has not been included.

III – Installation and operation

III.1 – Testing

All pumps are tested with DI water at the factory in our clean room for:

• Maximum flow rate with no back pressure

• Minimum flow rate with no back pressure

• Flow rate with 58 PSI (4 bar) discharge pressure

• Checked for leakage

III.2 – Set up

The pump must be installed horizontally as shown on general arrangement drawing
(see appendix “APP 4 EXT”). This drawing also shows the overall dimensions of the pump etc.
The pump must be installed on its feet. If not, the check valves will not seat correctly and the pump
may malfunction.

III.3 – Connections

III.3.1 – Ai r/Nitrogen connections

The pump must be connected to a clean dry air or nitrogen supply. On no account should the
air/nitrogen supply be lubricated, oil or water droplets will cause the shuttle valve to malfunction.
Minimum and maximum supply pressure must be between 29 and 72.5 PSI (2 and 5 bar).
For optimum pump operation, we recommend a supply pressure of 58 PSI (4 bar).
The ID of the tube supplying the dry air/nitrogen should not exceed 3/8” (10 mm). The tube length
between the pump and on/off valve should be between minimum 10 feet (3 m) and maximum 19 feet
(6 m).
When in aggressive conditions (acid vapors), it is advised to canalize outlet with a tube minimum
ID 5/8” (15 mm).

The pneumatic on/off valve must be 3-way to ensure the shuttle valve on the pump resets itself when
the pump is switched off. The flow control valve must be positioned before the 3-way on/off valve
(see appendix “APP 4 CAB”).

A remote control box with on/off switch and a needle valve (P/N 24 000 04) is available as an optional
extra.

III.3.2 – Fluid connections

The pump is self-priming. The inlet is at the bottom and the outlet at the top.
Two optional fittings are available:

• PFD4 322 or PFS4 322: pump is supplied with flared fittings suitable for 7/8”x1” (22x25 mm)

TEFLON® tube. The tube needs to be flared prior to fitting using SGPPL ASTI Forming Tool

(P/N MF12228).

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PFD4/PFS4 – OPERATING INSTRUCTIONS

• PFD4 325 or PFS4 325: incorporates a flanged fitting PN10 DN25.

Both the inlet and outlet fittings can be turned over if necessary, by loosening the nuts on the inlet
and outlet manifolds (P/N 2430M or 2435M, Mark G). For the suction manifold, first remove the base
plate of the pump (P/N 2492). Re-tighten the nuts by hands.

If your pump is marked “W”, and you wish to change the side of the inlet and/or outlet manifolds, you
must absolutely change the PFA seals (washers, P/N 2592, Mark F) located deep in the groove at
the same time. Proceed as follows:

1) Remove the washers (with an air spray gun),

2) Fit the new washers in their grooves (a set of exchange seals is supplied with the pump:
P/N WWES KIT S4),

3) Install and tighten the manifolds with a strap wrench (while tightening, you may here a bang).

III.4 –Tests and controls

Before commissioning the pump, we recommend to test it dry with a supply pressure of 72.5 PSI
(5 bar) to ensure the system works correctly (See III.3.1 for the correct connections).
If the pump is cycling too quickly, reduce the speed by adjusting the needle valve.

Before using the pump with chemicals, please check:

• The manifold rings are tight (tighten by hand),

• The body tie rod nuts are tight. Because of the material of these tie rods, tightening of

couple must be controlled: we recommend 7 N.m. (Maximum is 10 N.m),

• The air/nitrogen supply is dry, clean and between 29 and 72.5 PSI (2 and 5 bar),

• The inlet and outlet fluid connections are correctly fitted and tight.

IV – Applications

IV.1 – Chemical compatibility

All PFD/PFS pump wetted parts are manufactured in TEFLON® PTFE and PFA and are suitable for
pumping even the most corrosive concentrated chemicals: H2SO4, HNO3, HF, H3PO4, HCl, NH4OH,
KOH, NaOH, CH3COOH, TMAH, H2O2...
The viscosity of the fluid must be less than 1000 cpo.
PFD/PFS pumps can pump liquids containing particles up to 0.02” (0.5 mm). Very abrasive liquids
are not recommended.
Please call either the factory or your local distributor if you require information on chemical
compatibility.

IV.2 – Contamination

The “all plastic” construction of the PFD/PFS pump ensures no ionic contamination of the chemical,
even if there is a bellows failure.

Due to the low frequency and amplitude of the bellows pump, SGPPL ASTI guarantees a lower level
of particle contamination when compared to a diaphragm pump.

IV.3 – Temperature range

The PFD/PFS pump can handle liquids from 32°F (0°C) to +212°F (100°C). When the fluid
temperature is greater than 140°F (60°C), you must frequently check that the manifold rings are fully
tight and that supply pressure is less than 43.5 PSI (3 bar).
For special applications, call SGPPL ASTI or your local distributor.

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PFD4/PFS4 – OPERATING INSTRUCTIONS

IV.4 – Applications

The PFD4/PFS4 pump is a volumetric pump.
Each impulse delivers a constant unit stroke (about 900 cc/unit stroke).
A leak detector (in case of bellows failure) can be fitted on each pump body (female thread M8 on
each half body (P/N 2472 and 2473).

• Part number marked K (PFD4 322K or PFS4 322K) indicates that the pump will be supplied with

KALREZ® manifold O.rings (P/N 2632K, Mark F) and body O.rings (P/N 2491K, Mark C).

• Part number marked W (PFD4 322W or PFS4 322W) indicates that the pump will be supplied
with PFA manifold seals (P/N 2592, Mark F), PTFE body rings (P/N 2593, Mark C), and special
manifolds (P/N 2591M or 2599M, Mark G).

• Part number marked G (PFD4 322G or PFS4 322G) indicates that the pump will be supplied with
special manifolds with no seals (P/N 2430G or 2435G, Mark G) and PTFE body rings (P/N 2593,
Mark C).

PFS4 pumps are equipped with valve seats without lip (P/N 2629A and 2630A, Marks D and E) and
rounded spires bellows (P/N 2309S, Mark B) in order to pump abrasive products (slurry).

Common applications are:

• Semiconductor Industry: Transfer of ultrapure and corrosive chemicals.

Pump filter recirculation systems.

• Pharmaceuticals and Chemicals: Chemical injection and sampling.

IV.5 – Limitations of use

The standard speed of PFD4/PFS4 pump is about 100 strokes/minute.

The following should NOT be part of the system:

• Do not connect the pump inlet or outlet with air, nitrogen or liquid under pressure.

• Lubricated and/or wet air or nitrogen,

• Air supply tubing greater than 3/8” (10 mm),

• Air line length between the pump and control valve less than 10 feet (3 m) and more than

19 feet (6 m),

• Air pressure less than 29 PSI (2 bar) or more than 72.5 PSI (5 bar),

• Inlet connection less than 7/8” (22 mm),

• Restricting inlet (valve, filter...),

• Exceed the recommended liquid temperatures,

• Pumping too viscous or abrasive liquids.

Any of the above can be detrimental to the normal operation and life expectancy of the pump, and
may invalidate the warranty.

If the pump is used with very corrosive chemicals and left for extended periods not in use, we
recommend the system is emptied and flushed.

V – Maintenance

V.1 – Trouble shooting

If the pump stops for any reason, check:

• The air/nitrogen supply,

• That all valves in the chemical line are open,

• That pneumatic screws (P/N 2478) are correctly tightened.

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