GSD PTFE DIAPHRAGM LIQUID END

The PRIMEROY L (PLG) compact metering pumps offer an unmatched reliable and safe dosing for any kind of fluids thanks to its unique and patented GSD design.
Fully compliant with API 675 and major global standards (ATEX, IECEx, NACE), ensuring safe and reliable operation in critical industrial environments worldwide.
Micrometric stroke adjustment enables accurate, repeatable dosing from 0–100%, even during operation, ensuring process stability and flexibility.
Triple hydraulic security by a valve blocking the overrunning and the extrusion. Installation Monitoring Indicator (IMI) system with the GSD design. One unique oil design for mechanical lubrication and hydraulic chamber: no risk of oil cross contamination
Diaphragm liquid ends guaranteed leak-proof with service life in excess of 20,000 hours
Highly adaptable with multiple liquid ends, valves, and control options, allowing precise configuration for specific process requirements.
Ensured by using high quality materials engineered to a robust and proven construction, oil bath lubrication to ensure reliability during continuous operation
| 50 Hz motor | 60 Hz motor |
|---|---|---|
Flow rate | Up to 3,300 L/h | Up to 871 GPH |
Pressure | Up to 45 bar | Up to 652 PSI |
Thrust | 900 daN | 2,023 lbf |
100% stroke | 50 mm | 1.97 in |
Ambient T° Standard | -10 to + 50 °C | +14 to +122°F |
Low T° design | -40 to + 50 °C | - 40 to + 122 °F |

Model PLG provides accurate dosing of a broad spectrum of fluids used in many industrial processes thanks to their modular design which offers several types of liquid ends, capacity control options and other configuration options enabling them to meet the specific requirements of your process application.
The main benefits of the PLG are its special compact design, the Global Security Device (GSD) and the Installation Monitoring Indicator (IMI).
The model PLG is designed for high flow rates (3300 L/h – 871 GHP for a simplex configuration) and mid pressure applications (45 bar – 652 psi).
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| 50 Hz Motor | 60 Hz Motor |
| |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Plunger diameter code | Swept volume | Stroke speed max | Motor speed max | Flow rate max | Pressure max | Stroke speed max | Motor speed max | Flow rate max | Pressure max | Connections | ||
10 bar | P.max | 145 psi | P.max | |||||||||
Ø | cm3 | spm | rpm | l/h | bar | spm | rpm | GPH | psi | |||
Metallic, type H | ||||||||||||
40 | 62.8 | 149 | 1440 | 506 | 452 | 45 | 144 | 1728 | 129 | 115 | 652 | 1” - VV1 m |
50 | 98.2 | 149 | 1440 | 807 | 722 | 45 | 144 | 1728 | 206 | 184 | 652 | 1” - VV1 m |
63 | 155.9 | 149 | 1440 | 1254 | 1205 | 23 | 144 | 1728 | 320 | 307 | 333 | 2” - VV1 m |
70 | 192.4 | 149 | 1440 | 1582 | 1520 | 23 | 144 | 1728 | 404 | 388 | 333 | 2” - VV1 m |
80 | 251.3 | 149 | 1440 | 2067 | 2023 | 17 | 144 | 1728 | 527 | 516 | 246 | 2” - VV1 m |
90 | 318.1 | 149 | 1440 | 2616 | 2584 | 14 | 144 | 1728 | 668 | 661 | 203 | 2” - VV1 m |
100 | 392.7 | 149 | 1440 | - | 3300 | 11 | 144 | 1728 | - | 842 | 159 | 2” - VV1 m |
Plastic, type P | ||||||||||||
50 | 98.2 | 149 | 1440 | 807 | 10 | 144 | 1728 | 206 | 145 | 1” - VV1 f | ||
63 | 155.9 | 149 | 1440 | 1254 | 10 | 144 | 1728 | 320 | 145 | 1” 1/2 - VV1 f | ||
70 | 192.4 | 149 | 1440 | 1582 | 10 | 144 | 1728 | 404 | 145 | 1” 1/2 - VV1 f | ||
80 | 251.3 | 149 | 1440 | 2067 | 10 | 144 | 1728 | 527 | 145 | 1” 1/2 - VV1 f | ||
90 | 318.1 | 120 | 1440 | 2107 | 10 | 115 | 1728 | 534 | 145 | 1” 1/2 - VV1 f | ||
100 | 392.7 | 120 | 1440 | 2657 | 10 | 115 | 1728 | 674 | 145 | 1” 1/2 - VV1 f | ||

We will help you to identify the right solution for your application, operating conditions and performance requirements

Version | Net weight (*) | Gross weight (*) | Packing | |||
|---|---|---|---|---|---|---|
kg | lbs | kg | lbs | (L x W x H) mm | (L x W x H) in | |
PLG - Simplex | 220 | 485 | 310 | 683 | 1100 x 680 x 1350 | 43.3 x 26.8 x 53 |
PLG - Duplex | 330 | 728 | 460 | 1.414 | 1600 x 950 x 900 | 63 x 37.4 x 35.5 |
PLG - Triplex | 470 | 1.036 | 660 | 1.455 | 1950 x 950 x 900 | 76.8 x 37.4 x 35.5 |
(*) Approximately


Coagulation/flocculation (injection of ferric chloride, aluminium sulphate, etc.), pH regulation (injection of acids and alkalis), water conditioning before and/or after RO treatment in desalination plant
protection of installation such as boilers and hydraulic systems (corrosion inhibitors, biocides, scale inhibitors, amines…)
injection of additives, injection of co-catalyst, injection of sulphuric acid into water to produce diluted sulphuric acid

Injection of chemicals for separation and treatment of refined products, injection of paraffin inhibitor into fuel storage tanks
injection of biocide, corrosion/scale inhibitors, H2S scavengers… protecting piping and other assets and maintaining production rates, transfer of steam condensate
Injection of enzymes in starch production, injection of caustic soda for process water neutralization in refining and distilling applications
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