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Black
Line

Black Line OEM pumps

Black Line pumps have been in use in industry for many years and impress with their high efficiency and durability. Dellmeco GmbH offers you various Air-operated diaphragm pumps Black Line-style pumps that also have these outstanding properties. The pumps are used for low-friction pumping of aggressive liquids and liquids containing solids. They are dry-run safe and low-maintenance and can pump low to high-viscosity fluids.

Our team will be happy to assist you if you have any questions about the individual compressed air pumps or need advice on choosing the right model. Contact us right away!

The air-operated double diaphragm pumps from Dellmeco perform their work reliably every day. They are used in numerous industrial sectors, for example in the chemical industry. They are equipped with high-quality diaphragms made from first-class materials. Depending on the size of the model, you can achieve a flow rate of between one liter per minute and more than 1,000 liters per minute. The material pressure can be set to up to 8.3 bar. You can easily change this setting using the air filter, regulator and needle valve.

At Dellmeco you will find a wide selection of pumps. These are made from different materials. For example, we offer models made of conductive plastic as well as aluminum, cast iron and stainless steel. Depending on the material, the air-operated diaphragm pumps ensure compliance with the ATEX directives. This means you can also use the products for applications in potentially explosive atmospheres. We will be happy to assist you with our expertise if you have any questions.

The Black Line style pumps are made of high-quality materials and are extremely robust. This ensures that you can use the pumps for many years to pump a wide variety of fluids. From clean, slightly viscous fluids to corrosive, abrasive materials of medium viscosity, you can use the air-operated diaphragm pumps in a wide range of applications. These include the following areas, among others:

  • Chemical industry
  • Metal processing industry
  • automotive industry
  • and many more

We offer the pumps in different sizes and made of different materials. Whether with a size of ½″ or 3″ – you will find suitable models with us. The materials we stock include polypropylene and aluminum. We will be happy to help you decide on the right pump for your application. Simply contact us and let our team advise you.

With the years of experience of our Dellmeco sales staff, we can support you in the selection of your air-operated diaphragm pumps, piston pumps and more. We are happy to provide you with all our expertise and advise you on material, size and other factors. Contact us with your questions.

Do you already know which Black Line pumps are best suited to your application? Then send us a product inquiry using our contact form. We look forward to hearing from you!

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Productinfo
Stroke counting
A contactless sensor (proximity sensor) is installed in the motor housing. This registers every second stroke of the diaphragm in the pump chamber. This type of stroke counting is independent from the operation mode of the pump. The signals from the sensor can, for example, be transmitted to an available control unit or an optionally available stroke counter. The strokes for the pump can be pre-defined via the stroke counter.

Once the preset stroke rate is reached, the pump is switched off using a likewise optionally available solenoid valve. The strokes can also be captured pneumatically using a pressure sensor. Here, the pressure change in the motor housing is measured behind a diaphragm.

Stroke counters are available in the following models: SC 1 – Proximity sensor (Namur) with approx. 3.0 m connection cable SC 2 – Proximity sensor (Namur) with stroke counter SC 3 – Proximity sensor (Namur) with stroke counter and intrinsically safe isolating amplifier in accordance with potentially explosive areas SC 5 – Pressure switch (1.0 – 10.0 bar) with approx. 5.0 m connection cable SC 6 – Pressure switch (1.0 – 10.0 bar) with stroke counter

Note: If the proximity sensor (SC 1) is used in a potentially explosive area, an intrinsically safe isolating amplifier should also be provided.
Pulsation damper
When operating compressed air driven double diaphragm pumps (positive displacement pumps), a pulsating delivery flow results from the oscillating movement of the diaphragm. In order to achieve an almost uniform delivery flow, the use of a suitable active pulsation damper is mandatory.

The Dellmeco F range is a specially developed pump with integrated pulsation damper and two separate product chambers. The first product chamber is used for delivering a liquid from a reservoir to the system. This chamber works by using a directly installed and actively controlled pulsation damper. The product flow is thus delivered evenly. An air pressure of at least 1 bar is required for perfect use of the pulsation damper.

The second chamber is used for returning the excess product (e.g. colour, glue, adhesive, etc.) from the system to the reservoir. The second chamber can also be used for circulating the product in the reservoir. The quick sedimentation of a product can thereby be prevented.

When using Dellmeco pumps with plastic housing, the pulsation damper is screwed directly onto the material outlet without the use of further components. When using pumps with metallic housing, the pulsation damper is installed downstream from the pump. Each pulsation damper has a separate compressed air connection. Pumps and pulsation dampers should be connected to the compressed air supply together so that both units are supplied with the same air pressure. As soon as the pump is supplied with air pressure and begins delivery, the pulsation also begins reducing the pulsation. The diaphragm in the pulsation damper, as in the double diaphragm pumps, serves as a separating membrane between the air side and the product side. If the air pressure is reduced or increased as a result of modified operating conditions, the pressure on the delivery side is also reduced or increased. This occurs both in the pump and in the pulsation damper. Consistently good damping of the pulsation is achieved, caused by this automatic adjustment of the pressure. Use in potentially explosive areas (EX II 2GD TX) is assured through the use of conductive polyethylene as the housing material.

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