Blote as industriële centrifugaalpomp — 4CA 250-315A
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OPTIMIZED FOR FIRE-FIGHTING: The 4CA250-315A bare shaft centrifugal pump is built to EN 733 standards, delivering consistent water flow and reliable pressure for demanding fire-fighting applications.
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LOW-SPEED EFFICIENCY & MOTOR READY: Operates at a quiet 1450 rpm for reduced wear. Designed for easy flexible coupling with standard electric or high-efficiency IE3 motors, reducing long-term power costs.
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RUGGED DURABILITY: Features a heavy-duty cast iron pump body, a robust cast iron seal plate, and a high-grade AISI 316 stainless steel shaft end to withstand intense daily use.
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FLEXIBLE IMPELLER OPTIONS: Comes standard with a cast iron impeller, with optional upgrades to bronze or stainless steel for enhanced corrosion resistance and specialized liquid handling.
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WIDE OPERATING RANGE: Safely handles clean liquids at temperatures ranging from -10°C to +90°C and sustains operating pressures up to 10 bar, providing versatile performance.
Product information
The Pentax 4CA250-315A is a heavy-duty, bare shaft horizontal centrifugal pump end engineered in strict compliance with EN 733 European standards. Specifically built for fire-fighting, it provides supreme hydraulic durability.
Designed as a bare shaft pump unit (without motor), the 4CA250-315A connects via a flexible coupling to standard 4-pole electric motors (including high-efficiency IE3 motors) or diesel engine drivers. It features a DN150 suction port and DN200 delivery port, delivering maximum hydraulic efficiency at operating pressures up to 10 bar.
Engineered for long-term continuous operation, the pump incorporates a heavy cast iron casing, cast iron seal plate, AISI 316 stainless steel shaft end, and a 40 mm ceramic-graphite-NBR mechanical seal. Handling fluid temperatures from -10°C to +90°C, the Pentax 4CA250-315A offers versatile customization options with cast iron, bronze, or AISI 316 stainless steel impellers, as well as gland packing seal upgrades.
Impeller & Configuration Comparison:
Cast Iron Impeller (Standard): Economical choice for clean water and standard daily industrial pumping.
Bronze Impeller (Optional): Eliminates rust seizure during long standby periods (ideal for fire pumps) and provides exceptional resistance to sea water and cavitation.
Stainless Steel AISI 316 Impeller (Optional): Maximum chemical, acid, and abrasion endurance for harsh industrial liquids.
Gland Packing (Optional): Traditional braided rope packing alternative to mechanical seals for high-sand or slurry environments.
Note: Bare shaft pump only. Motor, coupling, baseplate, and optional counter-flanges sold separately.
Features & Specs
Model 4CA 250-315A Pomptype Kale as horizontale centrifugaalpomp met flenzen volgens EN 733
Hydraulische norm Conform EN 733-normen
Diameter zuigpoort (DNA) DN 300 mm Diameter perspoort (DNM) DN 250 mm Diameter mechanische afdichting 70 mm Max. bedrijfsdruk Max. 10 bar Temperatuurbereik vloeistof -10 °C tot +90 °C Materiaal pomphuis / afdichtingsplaat Gietijzer / Gietijzer
Materiaal pompasuiteinde RVS AISI 316
Standaard materiaal waaier Gietijzer (optioneel: brons of RVS AISI 316)
Standaard mechanische afdichting Keramisch-grafiet-NBR (optioneel: pakkingbus)
Motorcompatibiliteit Combineerbaar met standaard- of IE3 hoogrendementsmotoren
Optionele accessoires Tegenflenzen, pakkingbusafdichting, bronzen/AISI 316 waaier
Dimensions
Model 4CA250-315A Product Dimensions (cm) 63.9 x 15.7 x 17 cm Pump Weight (kg) 19 kg Motor Weight (kg) 17 kg Total Weight (kg) 36 kg