QBK50 polypropylene air-operated diaphragm pump with PTFE diaphragms and 2" ports

QBK50 Air Diaphragm Pump, Polypropylene Body, 240 L/min, 2″ Ports

Name: QBK50 Air Diaphragm Pump, Polypropylene Body, 240 L/min, 2" Ports
SKU: KMN-VALV-0030
Price: 15110.55 ZAR
Availability: InStock

SKU KMN-VALV-0030

A 2" air-operated polypropylene diaphragm pump for sump dewatering, slurry and bulk transfer, delivered from Polokwane to all nine provinces.

R15 110,55

Moves up to 240 L/min through 2″ ports with compressed air only
Self-priming to 7 m, with PTFE diaphragms and solids up to 8 mm
Polypropylene body, maximum discharge pressure 6.9 bar
Air consumption up to 900 L/min, no electrical supply

Delivered by our own trucks in 1 to 3 days. R550 / R950 / R1,450 by order weight. FREE on orders of R20,000 or more with code KH027. Delivery details

Specifications

Flow rate	240 L/min (maximum)
Max head / pressure	6.9 bar discharge, 7 m suction lift
Voltage / phase	N/A (air-operated, no electrical supply)
Power	Compressed air, up to 900 L/min
Inlet / outlet	2" / 2"
Self-priming	Yes (7 m suction lift)
Duty cycle	N/A (air-operated, no motor)
Fluid compatibility	Fuels, oils, water-based liquids and compatible chemicals, depending on body material
Body / wetted materials	Polypropylene body, PTFE diaphragms
Max solids size	8 mm
Viscosity range	1 to under 10,000 cP
Net weight	28 kg
Shipping weight	43 kg
Dimensions	500 × 360 × 690 mm

Description

Overview

The QBK50 polypropylene air-operated double diaphragm pump moves up to 240 L/min through 2″ ports, powered by compressed air alone. It self-primes to a 7 m suction lift, delivers up to 6.9 bar, passes solids up to 8 mm and carries PTFE (Teflon) diaphragms.

The polypropylene body resists many acids, alkalis and salt solutions that corrode aluminium, and it is lighter than stainless steel. Check the liquid against a compatibility chart, and keep it away from hot liquids and strong solvents. Because there is no electric motor, you can run it wherever you have an air line, and it keeps pumping against a closed outlet. Browse more diaphragm pumps, or compare the QBK50 aluminium diaphragm pump and the QBK50 and QBK65 seal kit.

Key features

Flow of up to 240 L/min through 2″ inlet and outlet
Maximum discharge pressure of 6.9 bar, suction lift of 7 m
Self-priming, with solids up to 8 mm and viscosity up to 10,000 cP
Air consumption of up to 900 L/min, no electrical supply
Polypropylene body with PTFE diaphragms
2″ ports and an 8 mm solids passage for sumps and slurry

Where it works

A 2″ pump with 8 mm solids handling is used for dewatering sumps and trenches, moving slurry and emptying large tanks. It is a common choice for contractors and mine service crews who need a pump without an electric motor near wet ground. Treatment works in KZN and fertiliser plants in the Free State use the plastic body for chemical slurries.

Fit an air filter and regulator, and match your compressor to the 900 L/min maximum air consumption.

What’s in the box

QBK50 air diaphragm pump
Ask us what fittings and accessories are included with your order

Delivery and warranty

Kamano delivers with its own trucks from Polokwane to all nine provinces in 1 to 3 days. Delivery is free on orders of R20,000 or more (VAT incl.). Below that, the fee follows total order weight: this item ships at 43.0 kg, so expect R950 for loads of 30 to 60 kg. Ask us for the warranty terms on this model.

Questions about this product

What compressor do I need for the QBK50?

The QBK50 uses up to 900 L/min of compressed air at full flow, so size your compressor to deliver at least that at working pressure. A smaller compressor still runs the pump but limits its flow. Fit an air filter and a regulator so you can throttle flow and pressure, and keep air pressure at or below 6.9 bar.

Can the polypropylene QBK50 pump handle acids?

Polypropylene resists many acids, alkalis and salt solutions that corrode aluminium, and the PTFE diaphragms add chemical resistance. It is not ideal for hot liquids, strong solvents or heavy knocks. Send us the chemical name and concentration and we will check it against this pump before you order.

Do you deliver this pump to Newcastle?

Kamano delivers with its own trucks from Polokwane to all nine provinces in 1 to 3 days. At 43.0 kg shipping weight this falls in the 30 to 60 kg band (R950). Delivery is free once your order reaches R20,000 (VAT incl.).

Nationwide delivery from Polokwane

Delivered to all nine provinces in 1 to 3 days

We deliver the QBK50 Air Diaphragm Pump, Polypropylene Body, 240 L/min, 2" Ports with our own trucks to Johannesburg, Pretoria, Cape Town, Durban, Gqeberha, Bloemfontein, Polokwane, Mbombela, Mokopane, Upington, Rustenburg, Pietermaritzburg, Kimberley and eMalahleni, and to farms, mines and sites in between. This item ships in the R950 delivery band (30 to 60 kg). Orders of R20,000 or more deliver free with code KH027.

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