Pumping Element – 1R / 2R
The Polyhydron 1R and 2R pumping elements are self-contained, reciprocating units used to deliver small volumes of mineral oil at high pressure. These elements are valve-controlled and designed for constant submersion in oil.
- Operating Pressure : High Performance Range
- Application : Industrial & Mobile Systems
About this item
The Polyhydron 1R and 2R pumping elements are self-contained reciprocating units used in radial piston pumps for delivering small volumes of oil under high pressure. These elements are designed to be oil-immersed and operate through a spring-loaded piston that is actuated by a cam or eccentric bearing.
Key Specifications & Features
These elements are classified by code letters (A through Z) that define their displacement and maximum operating pressure:
| Element Code | Displacement (cc/stroke) | Max Pressure (bar) | Flow at 1450 rpm (l/min) |
|---|---|---|---|
| A | 0.40 | 550 | 0.58 |
| B | 0.63 | 450 | 0.91 |
| C | 0.90 | 350 | 1.30 |
| D | 1.25 | 300 | 1.81 |
| E | 1.50 | 250 | 2.17 |
| F | 1.80 | 200 | 2.61 |
| Z | 0.23 | 700 | 0.33 |
Pump Models Using 1R / 2R Elements
- 1R Series: Basic single-section radial piston pump group.
- Available in configurations with 2, 3, 5, or 7 elements.
- 2R Series: Radial piston double pumps.
- Features two separate pump sections, each typically having 3, 5, or 7 elements.
- Flows from each section can be used independently or combined for a single circuit.
| Weight | 0.850 kg |
|---|---|
| color | Black, Orange, White, Yellow |
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