Saint Gobain Vidros PFD1 - Manual (Page 5)

PFD1/PFS1 – OPERATING INSTRUCTIONS
INDEX DATE N°
03 27/09/01 DC01020US
4/11
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:
•
PFD1 210 or PFS1 210: pump is supplied with flared fittings suitable for 3/8”x1/2” (10x13 mm)
TEFLON
® tube. The tube needs to be flared prior to fitting using SGPPL ASTI forming tool
(P/N MF11013).
•
PFD1 221 or PFS1 221: pump is supplied with 1/2” MNPT male threads on the inlet and outlet. We
recommend using TEFLON
® tape when connecting female tube fittings to the PFD/S1 221 pump.
Both the inlet and outlet fittings can be rotated through 180 degrees if necessary, by loosening the nuts
on the inlet and outlet fittings. Then, retighten the nuts.
III.4 – Initial Tests and Adjustments
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 body rings (P/N 2706, Mark L) and manifolds are tight,
•
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: H
2
SO
4
, HNO
3
, HF, H
3
PO
4
, HCl, NH
4
OH, KOH,
NaOH, CH
3
COOH, TMAH, H
2
O
2
...
The viscosity of the liquids must be less than 1000 cpo.
PFD 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 pump can handle liquids from 32°F (0
°
C) up to +212°F (100
°
C).
When the fluid temperature is greater than 140°F (60
°
C) you must frequently check that the body rings
(P/N 2706, Mark L) and manifolds 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.