4BLOCK - 4" Multistage Borehole Pump Range General Product Description

Further Product Info 4BLOCK Pump Performance Curve 4BLOCKPump Performance Data 4BLOCK Pump Dimensions

PERFORMANCE RANGE

Flow rate up to 150 L/min (9 m³/hr)
Dynamic head up to 135 m

This new series of submersible pumps is fitted with a patented anti-seize system (ensuring pump operation, even after being left idle for long periods),and a water filled motor with removeable cable connector.

OPERATING LIMITS

Maximum fluid temperature + 30°C
Maximum sand content: 150g/m3
Starts: max. 20/hr
Max depth 40m

PEDROLLO borehole pumps feature a patented design giving them a high tolerance of entrained sand.

PUMP INSTALLATION AND APPLICATIONS

These pumps are suitable for pumping water with a sand content of up to 150g/m3. Their high performance and dependability make them suitable for use in domestic, civil and industrial fields, for the automatic distribution of water, for irrigation, washing and pressure-boosting systems, and for fire-fighting purposes etc.

4BLOCK pumps can be installed in wells with a diameter of no less than 4"(100m). The pump is lowered into the well by means of the delivery pipe until it is completely immersed. (min 50cm) and at least one metre from the bottom of the well. Care should be taken to ensure that the pump remains submerged as pump operation may cause the level of the water in the well to fall. The pump can be installed either vertically or horizontally. When installed vertically it is advisable to secure the pump by using a stainless steel or nylon cable connected to the special holes provided on the discharge head.

PERFORMANCE

4BLOCK pumps combine the advantages of a submersible pump with the performance of a centrifugal pump.
As submersible pumps, they assure reliable operation even with considerable water depth.
As multistage pumps they assure high flows, high heads, stable performance curves.

Curve tolerance according to ISO 2548

STRUCTURAL CHARACTERISTICS

• UNI ISO 228/1 gas thread DISCHARGE HEAD in AISI 304 stainless steel (up to 2.2kW discharge head, check valve and motor bracket in AISI 304 stainless steel).
• Techno-polymer, high resistance CHECK VALVE enables the weight of the column of water to be dispersed without stress to the impellers and diffusers, thus ensuring long pump life.
• Lexan General Electric technopolymer IMPELLERS and DIFFUSERS.
• Stainless steel AISI 304 DIFFUSER CONTAINER
• AISI 304 stainless steel PUMP SHAFT
• PUMP BEARINGS part fixed in special technopolymer and bush rotating with the shaft in stainless steel AISI 316 coated with chrome
  oxide to resist sand.
• DRIVE COUPLING in AISI 316L stainless steel
• AISI 304 SCREWS AND CABLE COVER
• MOTOR SHAFT in AISI 316 stainless steel
• DOUBLE MECHANICAL SEAL ceramic-graphite-NBR
• 4" SUBMERSIBLE MOTORS: water filled motor with removeable cable connector.
• PROTECTION IP 58 for Franklin Electric motor and IP 68 for Pedrollo motor
• FE4DM/T submersible SUPPLY CABLE. Supplied standard with 20m of cable.
• CONSTRUCTION AND SAFETY STANDARDS in compliance with EN 60 335 -1, (IEC 335-1, CEI 61-150) EN 60034-1 (IEC 34-1, CEI 2-3).

PERFORMANCE CURVE

PERFORMANCE DATA

PRODUCT DIMENSIONS

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