ProMinent
®
Page 16
3.5 Material Specifications
PP1 PP4 PC5 NP1/NP3 NS3 PS3 TT1 SS
Polypropylene Polypropylene PVC Acrylic Acrylic PVC PTFE with Stainless steel
carbon 1.4404
Polypropylene Polypropylene PVC PVC PVC PVC PTFE with Stainless steel
carbon 1.4404
EPDM EPDM FPM-A FPM-A/B FPM-B FPM-B PTFE PTFE
Ceramic — Ceramic Ceramic Ceramic Ceramic Ceramic Ceramic
Duran Ceramic — Duran — — Ceramic 1.4401
Type 1000 with ceramic seat rings in all material versions
PP4 with Hastelloy C valve springs
DEVELOPAN
®
metering diaphragm with PTFE base in all versions
FPM-A (Viton
®
-A), FPM-B (Viton
®
-B) and Duran (laboratory glass) are registered trademarks.
Liquid end
Intake- / delivery
connection
Seals
Balls Ø 6–Ø 12
Balls DN10–DN15
Technical data
3.4 Accuracies
min.: -5 %, max.: not specified
at max. stroke length and max. backpressure,
in all material versions.
Better than ± 2 %
under constant conditions and min. 30 % stroke length;
observe following notes:
• All specifications refer to metering measurements with water at 20 °C.
• Constant backpressure, above 1 bar if possible.
• If metering takes place via a free outlet, a pressure retention valve must be used to generate
a backpressure of min. 1.5 bar (refer to the installation examples).
• Wherever possible, lay intake and metering lines with a constant rising gradient.
• If the liquid level of the supply tank is above the pump during operation, admission pressure
will be applied on the intake side; in this case, the backpressure should be so high that there
is a minimum differential pressure of 1.5 bar otherwise a pressure retention valve or a spring-
loaded injection valve with corresponding admission pressure must be used.
NOTE
A pressure retention valve or a spring-loaded injection valve is not an absolutely tight-
closing shut-off element. For this reason, an intake valve which is closed when the
metering pump is at a standstill, must be installed if admission pressure is applied on the
intake side.
3.6 Electrical Data
3.6.1 Electrical data, control current circuit
3.6.1.1 for “non-intrinsically safe” version and “intrinsically safe” version
mA input, identity code feature “control type”: 2, 3, 5*, 6*
Voltage max. 6 V
Current max. 30 mA
Input apparent ohmic resistance, approx. 94 Ω
BA_EX_014_01_12_EN.p65 31.10.2012, 7:32 Uhr16
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