Espa 1.5HP Prisma 25-4M Horizontal Multistage Pump

Espa 1.5HP Prisma 25-4MHorizontal Multistage Pump

Single-phase multistage pump engineered to provide reliable water pressure for a broad range of clean-water applications. Built on Espa’s Prisma 25 platform, the 25-4M combines efficient hydraulics with quiet operation and rugged construction—attributes that make it a favourite for residential booster duties, small commercial facilities and light agricultural tasks.

• Power (P2):
  The hydraulic output is specified at 0.9 kW (≈ 1.2 HP) for Prisma 25-4, providing robust head/flow without excessive energy draw. This P2 rating reflects the mechanical output at the shaft.

• P1 (Input Power):
  1.4–1.5 kW for the single-phase. P1 for electrical sizing (cables, protection), while P2 defines hydraulic performance.

• Head:
  Up to 43 m shut-off range with a usable curve spanning common domestic and light commercial duty points. This coverage is suitable for multi-storey homes and moderate static lifts.

• Flow:
  Up to 120 l/min (7.2 m³/h), supporting several taps or fixtures simultaneously—showers, kitchen sinks, washing machines, hose bibs—without dramatic pressure dips.

• Suction:
  1″ threaded—keep suction lines short, airtight, and properly sized; add a foot/check valve as required. The Prisma 25 dimensions table shows a 1″ connection size for the 25-4 variant.

• Discharge:
  1″ threaded—makes integration with pressure switches, press-controls, and manifolds straightforward.

• Applications:
  Clean-water supply, boost domestic, industrial, agricultural and gardening purposes; the range is quiet and self-priming up to 2 m for easy start-up.

• Build & Materials:
  Hydraulics employs an AISI 304 stainless-steel body and impellers with an AISI 431 stainless-steel shaft. Technopolymer diffusers optimise efficiency, while cast-iron suction & discharge (cataphoresis coated) add mechanical strength. The motor casing is aluminium; sealing uses mechanical seal + NBR/EPDM O-rings—a reliable, serviceable material set for long-term use.