Sanitary grade negative pressure pump for conveying

Description :

Sanitary grade negative pressure pump

• Main material

◦ Priority: SUS316L stainless steel (acid and alkali resistant, high-temperature sterilization resistant, no metal ion precipitation, suitable for injection water, biological agents, high-purity liquid medicine)

◦ Alternative: SUS304 stainless steel (suitable for purified water, conventional chemicals, and low corrosive media)

• Surface treatment

Liquid contact inner surface: electrolytic polishing/mechanical polishing, Ra ≤ 0.8 μ m (some high-precision models can reach Ra ≤ 0.4 μ m), smooth without retention, easy to clean, and resistant to bacterial adhesion

External surface: matte or sandblasted treatment, beautiful and corrosion-resistant

• Sealing system

◦ Adopting washable single/double end mechanical seals, with sealing materials selected from EPDM and FKM (fluororubber) PTFE， High temperature resistance of 140 ℃, acid and alkali resistance, no leaching, no adhesion, in compliance with FDA extraction standards

• Structural design

◦ No blind tubes or stagnant areas in the entire cavity, with large rounded transitions in the flow channel

Tri Clamp, DIN/SMS sanitary flange connection, easy to disassemble, easy to install, supports CIP/SIP online cleaning and sterilization

Core performance advantages

• Clean and sterile

Fully hygienic construction, no accumulation of materials, no leakage, eliminating external pollution and cross contamination of media, meeting the requirements of pharmaceutical GMP A/B clean area use.

• Stable negative pressure and strong suction force

The limit vacuum can reach -0.09MPa, the self-priming height is 3 – 5m, and the pressure can be quickly built without pump filling, which is suitable for high and low level, long distance, trace gas/foam liquid transportation.

Low shear and protective components

Adopting sanitary grade open/semi open impellers, with wide flow channels and soft rotation speed, it has low shear, no emulsion breaking, and no layering for sensitive materials such as vaccines, serum, proteins, traditional Chinese medicine extracts, and crystal suspensions.

• CIP/SIP compatibility

Supports online cleaning (CIP) and online steam sterilization (SIP), easy disassembly, meets pharmaceutical cleaning validation requirements, and reduces downtime and labor costs.

• Reliable, durable, low-noise and energy-saving

Suitable for ABB/IE4 high-efficiency motors, with IP55 protection and F-level insulation, capable of 24-hour continuous operation; Noise ≤ 75dB, low vibration, low energy consumption, long lifespan.

Typical applications in the pharmaceutical industry

• Liquid delivery: sterile suction of injection water, purified water, infusion, serum, vaccines, and traditional Chinese medicine extracts

Vacuum feeding: closed negative pressure feeding of powder, particles, and paste (dust and pollution prevention)

• Vacuum filtration/concentration: liquid membrane filtration, vacuum distillation, vacuum concentration, low-temperature drying

Vacuum pumping of bottles and cans: Vacuum pumping/nitrogen filling before filling oral liquids, injection solutions, freeze-dried bottles, and soft bags

Fermentation/Bioengineering: Negative pressure control of bioreactors, extraction of fermentation broth, and transportation of cell culture broth

CIP/SIP system: Circulating and negative pressure evacuation of cleaning solution and sterilization solution

Liquid medicine vacuum tank suction hygiene grade negative pressure pump

application field

1. Pharmaceutical/Biopharmaceutical (Core)

• Liquid medicine, infusion, distilled water, and high-purity water transportation

Aseptic transmission of vaccines, serum, culture media, and buffer solutions

Extraction of traditional Chinese medicine extract, granular medicine solution, and fermentation broth

Compliant with GMP, FDA, 3A standards, supporting CIP/SIP cleaning and sterilization

Clean workshop, liquid preparation system, sterile filling line

2. Biotechnology/Laboratory

• Cell culture medium, bioreactor materials

• Reagents, buffers, chromatography eluents

Vacuum filtration, suction filtration, sterile sampling

• Research and development/pilot/small-scale clean conveying

3. Medical/Health ()

Operating room negative pressure drainage and wound negative pressure treatment (VAC)

Delivery of hospital pure water, cleaning solution, and disinfectant

In vitro diagnostic reagents (IVD), blood product transmission

5、 Selection precautions

Flow rate and head: Determine the required flow rate and head based on actual needs to ensure that the pump can meet operational requirements.

Medium characteristics: Consider the properties of the conveyed medium, such as corrosiveness, viscosity, temperature, etc., and select suitable stainless steel materials and sealing forms.

Work environment: Consider environmental factors such as pump installation location, working temperature, humidity, etc., and choose the appropriate protection level and cooling method.

Brand and Quality: Choose manufacturers with reliable quality to ensure the performance and service life of the pump.

In short, stainless steel negative pressure pump is a high-performance and widely used fluid conveying equipment, playing an important role in various industries. When selecting and using stainless steel negative pressure pumps, reasonable selection should be made according to actual needs, and strict operation and maintenance should be carried out in accordance with operating procedures to ensure the normal operation and service life of the pump.

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