Datasheet summary
Tecnopres
PDF datasheet mirror for Tecnopres (ESPA Pumps). Verify with OEM before design.
Summary
Product identification
Tecnopres Pressure self-priming quiet-running horizontal multi-stage centrifugal pumps.
Applications
To supply water at pressure in domestic applications, with protection to prevent dry operation.
Materials
- Pump body and impellers: Stainless steel AISI 304
- Motor shaft: Stainless steel AISI 431
- Diffusers: Technopolymer
- Mechanical seal: Graphite and steatite
- Motor housing: Aluminium
- O-rings: EPDM/NBR
Operating limits
- Maximum liquid temperature: 40 °C
- Self-priming up to 9 m
Electrical
- Motor type: Asynchronous, two poles
- Protection: IP 55
- Insulation: Class F
- Operation: Continuous
- Voltage: 1~230 V (all models M)
- Thermal protection: Built-in for single-phase Tecnopres 15 and Tecnopres 25 (up to 1.25 HP)
Electrical Specifications by Model
- Tecnopres 15.4M:
- Current (I): 3.5 A
- P1: 0.8 kW
- P2: 0.55 kW
- HP: 0.75
- Capacitor: 12 µF
- Code: 97535
- Tecnopres 15.5M:
- Current (I): 4.1 A
- P1: 1 kW
- P2: 0.66 kW
- HP: 0.9
- Capacitor: 12 µF
- Code: 97537
- Tecnopres 25.4M:
- Current (I): 6.8 A
- P1: 1.5 kW
- P2: 0.95 kW
- HP: 1.25
- Capacitor: 16 µF
- Code: 97539
- Tecnopres 25.5M:
- Current (I): 7.4 A
- P1: 1.7 kW
- P2: 1.1 kW
- HP: 1.5
- Capacitor: 25 µF
- Code: 97541
Mechanical / Hydraulic
- Starting pressure:
- Tecnopres 15: 1.8 bar (15/4), 2.3 bar (15/5)
- Tecnopres 25: 2.3 bar
- Required pressure vessel:
- Minimum size 8 ltrs for Tecnopres 15
- Minimum size 18 ltrs for Tecnopres 25
- Equipment included:
- Kit Press
- Pressure gauge
- 2 m of H07 RNF cable
- Valve resistant to impurities
- Dry run protection
- Device to ensure pressure water supply
- Stainless steel discharge adaptor (all Tecnopres pumps)
- Key features:
- Electronic display with push button and LEDs showing line, pump in operation, and failure.
- Dry running protection: pump stops automatically when there is no water in the installation.
- Self-priming valve resistant to impurities closes automatically to prevent unnecessary recirculation of water.
- Pump body made entirely of stainless steel to prevent oxidation due to water-air contact.
- One outlet for domestic supply at pressure.
Hydraulic Performance (Head vs. Flow)
The following table provides head (mwc) at various flow rates (l/min, m³/h) for 1~230 V models at 2900 rpm:
| Flow (l/min) | Flow (m³/h) | Tecnopres 15.4M (mwc) | Tecnopres 15.5M (mwc) | Tecnopres 25.4M (mwc) | Tecnopres 25.5M (mwc) |
|---|---|---|---|---|---|
| 15 | 0.9 | 42 | 51 | 44 | 56 |
| 30 | 1.8 | 39 | 47 | 42 | 55 |
| 45 | 2.7 | 35 | 41.5 | 40 | 53 |
| 60 | 3.6 | 32 | 38 | 37 | 49 |
| 75 | 4.5 | 28 | 34 | 33 | 43 |
| 90 | 5.4 | 25 | 30 | 28 | 37 |
| 105 | 6.3 | 21 | 26 | 22 | 29 |
| 120 | 7.2 | - | 17 | 15 | 20 |
Dimensions and Weights
Dimensions are in mm, weights in kg. DNa and DNi refer to nominal discharge and inlet diameters.
| Model | A | B | C | D | E | F | G | H | Ø I | DNa | DNi | Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tecnopres 15.4M | 195.8 | 107.5 | 256.3 | 197 | 244.5 | 216.3 | 148.5 | 88 | 9 | F1” | F1” | 10.3 |
| Tecnopres 15.5M | 219.1 | 107.5 | 279.6 | 197 | 244.5 | 216.3 | 148.5 | 88 | 9 | F1” | F1” | 11.2 |
| Tecnopres 25.4M | 216.3 | 107.5 | 276.8 | 206 | 268 | 216.3 | 148.5 | 88 | 9 | F1” | F1” | 10.3 |
| Tecnopres 25.5M | 242.6 | 107.5 | 303.1 | 206 | 289.5 | 216.3 | 148.5 | 88 | 9 | F1” | F1” | 11.2 |
Disclaimer: This summary is based on the provided text extract. It may not include all figures, footnotes, or the latest revisions present in the official OEM PDF datasheet. For contractual purposes, always refer to the specific OEM PDF revision used for your project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.