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Wilo Para Ku 15-25/6-43 SC Pump Inc Cable

Price range: £120.00 through £132.00 incl. VAT

A-rated composite housing pump for heating systems.
Features 6m head, 130mm length, and Green Button technology.
Offers Constant Pressure (UFH), Variable Pressure, and Constant Speed modes.

Head Metre

Clear

SKU: N/A Category: Pumps for Manifold

Description

High-efficiency circulating pump featuring an inline composite OEM pump housing, making it both lightweight and corrosion-resistant. Designed specifically for heating applications, it utilizes advanced push-button technology to easily select between various control modes, including variable differential pressure ( $\Delta P-v$ ), constant differential pressure ( $\Delta P-c$ ), and constant speeds.

This pump is fully ERP compliant with an Energy Efficiency Index (EEI) of $\le 0.20$ , ensuring low energy consumption and reliable operation for modern heating systems.

Key Product Features

Feature	Detail	Benefit
Efficiency	EEI $\le$ 0.20	Outstanding energy savings and compliance with efficiency regulations.
Housing	Composite (PA6.6 + GF30%)	Durable, lightweight, and completely rust-free construction.
Control	“Green Button” Interface	Simple push-button selection for all operating modes.
Modes	$\Delta P-v$ , $\Delta P-c$ , Constant Speed	Versatile settings for underfloor heating (constant pressure) and radiators (variable pressure).
Protection	Integrated Motor Protection	Built-in safety features to protect against electrical faults.
Connection	Molex 3-way	Quick and secure electrical connection.

Control Modes & Operation

The Wilo Para SC offers precise hydraulic control via its intuitive interface.

Variable Differential Pressure ( $\Delta P-v$ ): Recommended for radiator heating systems. The pump adjusts the head according to the flow demand (e.g., when TRVs close).
Constant Differential Pressure ( $\Delta P-c$ ): Ideal for Underfloor Heating. The pump maintains a constant head regardless of flow rate changes, ensuring even heat distribution .
Constant Speed (I, II, III): Allows the pump to run at a fixed speed for specific applications like boiler charging or system venting.

Technical Specifications

Detail	Specification
Max Delivery Head	6.3 m
Max Volume Flow	2.6 m³/h
Power Consumption	3 – 43 W
Mains Connection	1~230 V, 50/60 Hz
Protection Class	IPx4D
Max Static Pressure	PN6
Fluid Temp Range	+0°C to +100°C (at 58°C ambient)
Port-to-Port Length	130mm
Weight	Approx 0.9 kg