PFD2/PFS2 – OPERATING INSTRUCTIONS
INDEX
DATE
N°
03
26/06/01
DC02020US
2/11
Thank you for selecting a SAINT-GOBAIN PERFORMANCE PLASTICS ASTI model PFD2
AstiPure™
pump, series 3 (or PFS2: 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 PFD2/PFS2 pump is
AMC2/AMS2.
I.4 – Pump Data
Flow rate
5 GPM (1200 l/h)
Discharge pressure
58 PSI (4 bar) max.
Suction head
11.5 feet water column (3.5 m)
Max. air consumption
8 SCFM (13,5 m³/h) NTP
Connections
5/8"x3/4" (16x19 mm)
TEFLON
®
flared tube.
Air connection
1/4" ID gas female thread
Tubing
∅
5/32"x1/4" (4x6 mm) maximum
10 feet (3 m) < length < 20 feet (6 m)
Weight
9 lbs (4kg)
Our range also includes three other models, with their optional pulsation dampers:
PFD1/PFS1
Flow rate 2.5 US GPM (10 l/min)
AMC1/AMS1
PFD3/PFS3
Flow rate 12.5 US GPM (50 l/min) AMC3/AMS3
PFD4/PFS4
Flow rate 25 US GPM (100 l/min)
AMC4/AMS4
