Name: Pedrollo CP 158-ST6 Three Phase 2101480
SKU: 2101480
Price: 766.8 GBP
Availability: InStock

In stock

Established 1975
Trusted by thousands of customers

The Pedrollo CP 158-ST6 is a 0.75 kW (1 HP) stainless steel centrifugal pump on a 400 V three-phase supply, delivering up to 120 l/min and 35.5 m head. It shares its hydraulics with the cast iron CP but is built for water that would corrode cast iron.

Pump body, impeller and shaft are all stainless steel, so it suits softened, treated and slightly aggressive water, and applications where hygiene matters.

120l/min

Max flow

35.5m

Max head

0.75kW

1 HP

400V

Three Phase

Stainless steel bodyAISI 304 (ST4) or 316L (ST6)Same hydraulics as CPUp to 10 barSingle & three-phaseCode 2101480

Full Description

More about this product

Full Description

Product overview

The Pedrollo CP 158-ST6 is a 0.75 kW (1 HP) single-impeller centrifugal pump on a 400 V three-phase supply, covering 10 to 120 l/min with a working head of 35.5 m down to 19 m. It is the stainless steel version of the CP 158: the same performance, but with pump body, impeller and shaft in stainless steel instead of cast iron.

Use it where a cast iron pump would corrode or contaminate the water: softened or treated water, rainwater and greywater reuse, food and drink premises, and light industrial process water. The ST4 grade is AISI 304 stainless; the ST6 grade is AISI 316L for water with a higher chloride content.

120l/min

Max flow

35.5m

Max head

0.75kW

1 HP

400V

Three Phase

Key features

All-stainless wetted parts

Pump body, impeller and shaft in stainless steel. No cast iron in contact with the water.

Two grades

ST4 in AISI 304 for clean and softened water; ST6 in AISI 316L for more aggressive liquids.

CP hydraulics

Same duties as the matching cast iron CP, so it slots into existing CP applications.

Up to 10 bar

6 bar working pressure on the 100–158 sizes, 10 bar on the 170–200.

Single or three-phase

CPm single-phase 230 V with thermal protection, or CP three-phase 400 V with IE2/IE3 motors.

Continuous duty

Rated S1 for continuous running.

Typical applications

Softened and treated water

Downstream of softeners, RO plant and treatment where cast iron would corrode.

Rainwater and greywater

Reuse systems in homes and commercial buildings.

Food and drink

Process and wash-down water where hygiene matters.

Light industrial process

Cooling, transfer and pressure duties with slightly aggressive water.

Technical specifications

Brand / Series	Pedrollo — CP-ST
Model	CP 158-ST6
Pedrollo code	2101480
Supply	400 V three-phase
Motor power (P2)	0.75 kW / 1 HP
Motor	Three-phase motor (IE2 or IE3 class to IEC 60034-30-1, by size)
Flow range	10–120 l/min
Head range	35.5–19 m
Pump body	AISI 316L stainless steel
Impeller	AISI 316L stainless steel
Shaft	AISI 316L stainless steel
Max working pressure	6 bar (CP 100–158) / 10 bar (CP 170–200)
Liquid temperature	−10 °C to +90 °C
Duty	Continuous S1

CP-ST range

Model	Code	Supply	Power	Flow	Head
CP 158-ST6	2101480	Three Phase	0.75 kW / 1 HP	10–120 l/min	35.5–19 m

Head shown as the working range from minimum to maximum flow. Performance to Pedrollo 50 Hz data.

Frequently asked questions

What is the difference between ST4 and ST6?

ST4 pumps are made in AISI 304 stainless steel and suit clean and softened water. ST6 pumps are made in AISI 316L, which resists chlorides better, so they suit brackish, treated or more aggressive water. The pump performance is identical.

How does it compare with the cast iron CP?

The hydraulics are the same, so a CP-ST gives the same flow and head as the matching CP. The difference is the materials: stainless steel throughout instead of cast iron body and shaft.

Is it self-priming?

No. It needs a flooded suction or a foot valve on the suction line. For suction lift from a tank or well below the pump, look at the Pedrollo FUTURE JET-ST stainless self-priming range.

What is the maximum working pressure?

6 bar on the CP 100, 130, 132, 150 and 158 sizes, and 10 bar on the CP 170, 180, 190 and 200.

Delivery Information

Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.

Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).

Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.

Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.

Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.