Silencer LD Series Precision Gear Pump
Characteristics:
- Flow Range 50 to 2500 ml/min
- Chemically Resistant
- Low Pressure Pulsation
- Compact
- Flexible Inlet and Outlet port locations
- Robust
- Hermetically Sealed (No Shaft-Seals)
- Long Service Life
- Low Noise
- Low Maintenance
Sizes:
- 250, 500, 1000, 1500, 2000
- Silencer LD 2000
Precision
Silencer LD precision gear pump extends the successful Silencer series to applications requiring a very compact size. This pump uses the same inexpensive, maintenance-free motor system while taking advantage of advanced manufacturing techniques to reduce size while still providing the life that Silencer pumps are known for at pressures up to 4 bar.
The 316L stainless steel casting allows for numerous port options at different orientations. Mounting holes are provided for easy integration into customer machines. Custom body designs can easily be provided for high volume OEM applications.
Benefits

Low Cost
Not all applications require maximum pump capability. Silencer LD has been optimized to lower cost while still providing superior Diener quality and reliability.

Long-life
DPP pumps are all characterized by their robustness and performance. Wear and tear is at its lowest, and their smart designs ensure a sustainable reduction of operating costs.

100% Outgoing Testing
Before any pump leaves our factory, it is stringently and extensively tested in accordance with its specifications. Our customers receive detailed reports, saving them time and money.

Chemically Resistant
Our pumps are made from materials that are resistant to a wide range of aggressive chemicals. This means our pumps can also operate reliably and precisely in even the most environments.

Low Pressure Pulsation
Thanks to their smart drives and the innovative helical gear design our pumps ensure an extremely smooth fluid delivery with almost no pressure pulsation.

No Shaft Seals
DPP gear pumps are hermetically sealed instead of using conventional shaft seals. This means low maintenance for you and your customers, a long service life and the highest degree of productivity.
Silencer LD Pump Applications
- Sterilization
- Dialysis degas and dialysate analysis
- Diagnostics
- Laser cooling
- Consistent inkjet pressure
- Bulk & sample fluid transfer
- Continuous inkjet printing
Quality Control – 100% Outgoing Test
Before any Silencer LD Series gear pump leaves our factory, it is stringently and extensively tested. Our customers receive detailed production test reports, saving them time and money.
DPP is certified to ISO 9001 and operates a clean room according to ISO Class 7.
Specifications
Performance
- Max. continuous pressure 4 bar
- Max. intermittent pressure 6 bar
- Max. static case pressure 15 bar
- Inlet Self-priming
- Fluid viscosity range 0.3 - 1000 cps
Temperature
- Fluid temperature range 0-95°C
- Ambient air temp. range 0-80°C
- Relative humidity range 0-95% non-condensing
Construction
- Metal components 316L stainless steel
- Gears PEEK
- O-ring options EPDM, Silicone, FKM, Nitrile
- Inlet/Outlet 1/4” & 6mm push-to- connect, 1/8”-NPT, G1/8, 1/4”-28 UNF
- Marking Permanent laser-mark identification for 100% traceability
Resources and Datasheets
Please use the links below to request access to the product datasheets and 3D STEP files.
Build a Custom Pump to Your Specific Requirements
Our engineers and technical experts are eager to design a pump to your requirements.
