• Unique Air Duct Design

Neg Furls Negative Pressure Weighing Chamber adopts vertical unidirectional flow airflow, so that the air passes through the high-efficiency filter at a certain air speed to form a homogeneous layer, thus ensuring that the clean air is in a vertical unidirectional flow. This design effectively isolates the weighing area from the outside environment, avoiding the leakage of dust and other particles, and ensuring the cleanliness and safety of the operating environment.

• Manual frequency conversion system for wind speed

The equipment is equipped with a manual inverter system for air speed, which allows the operator to adjust the air speed according to the actual needs to ensure that the air flow in the weighing room stays within the appropriate range. This system not only increases the flexibility of the equipment, but also better adapts to different operational needs.

• Real-time monitoring of filter differential pressure

The Neg Furls Negative Pressure Weighing Chamber is equipped with a filter differential pressure monitoring function, which monitors the differential pressure in real time to ensure that the filters are in good working condition. When the differential pressure exceeds the set range, the system will automatically alert the operator for inspection and maintenance.

• Effective control of working noise

The design of the equipment takes the control of working noise into full consideration. By optimizing the design of air ducts and selecting low-noise fans, the noise level during operation is effectively reduced, making the operating environment quieter and more comfortable.

• Other important features

High-efficiency filtration system: adopting multi-stage filtration of primary filter, intermediate filter and high-efficiency filter to ensure that the air cleanliness meets the requirements.

Negative pressure maintenance: the equipment can maintain a relative negative pressure state to prevent the spread of dust and cross-contamination.

-GMP compliant: meets the requirements of the new version of GMP, applicable to the weighing operation of raw and auxiliary materials for pharmaceuticals.

Neg Furls Negative Pressure Weighing Chamber is a widely used equipment in the chemical, pharmaceutical and food industries. It is designed to isolate the weighing area from the outside world by means of negative pressure technology, which effectively prevents the leakage of dust and other particles and ensures a clean and safe operating environment. This product consists of a number of key components, the materials and features of which are described in detail below.

• Lighting

The negative pressure weighing chamber is equipped with an energy efficient LED lighting system, which ensures sufficient and even illumination with low energy consumption, making it easy for operators to carry out accurate weighing operations. the LED lamps have a long life and low maintenance costs, and are able to work stably for a long period of time in the cleanroom environment.

• Sterilization

In order to ensure the hygienic environment inside the weighing room, the equipment is equipped with UV germicidal lamps. The UV lamps can effectively kill airborne bacteria and viruses, preventing contaminants from affecting the purity and quality of materials during the weighing process. The UV germicidal lamps should be replaced periodically to maintain their sterilizing effect.

• Weighing platform

The weighing table is made of stainless steel, with excellent corrosion resistance and easy to clean. The table surface is finely polished to ensure smoothness and avoid material residue. The design of the weighing table is ergonomic, which is convenient for the operator to work for a long time without feeling fatigue.

• Socket

The negative pressure weighing chamber is equipped with waterproof and dustproof sockets to ensure electrical safety in high cleanliness environments. The sockets are made of high-quality insulating materials with good resistance to high temperatures and aging, and are able to meet the needs of long and stable work.

• Box

The cabinet of the negative pressure weighing chamber is made of high-quality steel plate with anticorrosion treatment on the surface, which has good mechanical strength and durability. The interior of the chamber adopts modular design, which is convenient for maintenance and parts replacement. The upper and lower enclosures are connected by sealing strips to ensure tightness under negative pressure.

• Other features

Skylight and observation window: Equipped with transparent explosion-proof glass, it is convenient for operators to observe the internal situation and maintains good air tightness under negative pressure.

Dust collector: High-efficiency filtration system can effectively capture small particles to maintain a clean environment inside the weighing chamber.

Differential Pressure Control: Strictly control the pressure difference between the inside and outside of the negative pressure weighing chamber to ensure that the dust will not leak to the outside. The differential pressure gradient is usually maintained above 10 Pa to ensure the efficient operation and safety of the equipment.

Through the above design and material selection, Neg Furls Negative Pressure Weighing Chambers are able to provide reliable dust control and material weighing services in high cleanliness environments, ensuring process safety and product quality.

The Neg Furls Negative Pressure Weighing Room ensures a clean operating environment through a highly efficient airflow filtration system. At the heart of the system is the use of a High Efficiency Particulate Air (HEPA) filter, which effectively filters 99.99% of particles of 0.3 microns and above, ensuring clean air in the chamber. In addition, negative pressure is maintained in the weighing chamber so that outside air does not enter the chamber, further ensuring the cleanliness of the air.

• Cleanliness Requirements

In terms of cleanliness, the negative pressure weighing room strictly follows the relevant standards to ensure that the operating environment meets the requirements of GMP (Good Manufacturing Practice). A multi-stage filtration system, including pre-filters and HEPA filters, effectively removes suspended particles and microorganisms from the air to achieve ISO Class 5 cleanliness. This high level of cleanliness is especially important for weighing operations of demanding products such as pharmaceuticals and chemicals.

• Negative Pressure Control

The negative pressure weighing chamber utilizes a specially designed fan system to maintain negative pressure in the chamber. The negative pressure control system monitors the pressure difference between inside and outside the chamber in real time and automatically adjusts the fan speed to ensure that a stable negative pressure environment is maintained in the chamber at all times.

• Application Scenarios

Negative pressure weighing chamber is widely used in pharmaceutical, chemical, electronic and other industries, especially suitable for operating environments that require high cleanliness and strict air control. In the pharmaceutical industry, it can effectively prevent cross contamination and protect the quality and safety of drugs.

Options. 

1	Wind Speed Sensor
2	Differential Pressure Sensor
3	converter
4	touchscreens
5	PLC control
6	Polymer homogeneous membrane