Print equipment in knitting mills operates in tough production environments—think dirty air sources, unstable pressure, and the need for non-stop long-term running. For the diaphragm pumps supporting this equipment, these conditions bring strict demands: they must stand up to harsh surroundings, run continuously without shutdowns, and be easy to maintain. What’s more, since multiple pumps are often installed in the same area, minimizing wearing parts is a top priority—fewer replacements mean less production disruption and lower maintenance costs. One knitting mill struggled to find a pump that met all these needs, until BSK pneumatic diaphragm pumps stepped in.

Customer Demands: Tackling Harsh Conditions & Maintenance Hassles
The customer’s print equipment relied heavily on diaphragm pumps, but their production environment created three key pain points:
Harsh environment resistance: Dirty compressed air and unstable pressure often caused other pumps to clog or fail, disrupting production.
Non-stop operation: The mill ran long shifts, so pumps needed to work continuously without unexpected halts.
Easy maintenance & fewer wearing parts: With dozens of pumps on-site, frequent disassembly for repairs or part replacements took too much time—and stocking multiple wearing parts increased costs.

BSK’s Advantages: Built for Knitting Mill Needs
BSK pneumatic diaphragm pumps addressed every pain point with targeted design:
Modular air motor for easy maintenance: The air motor uses a modular structure, which means disassembly and maintenance are quick—no complex tools or lengthy downtime. Workers can finish basic upkeep in minutes, even with multiple pumps to service.
Minimal wearing parts: Only 3 sets of Y-rings count as wearing parts. This cuts down on replacement frequency and reduces the need to stock extra parts, lowering both maintenance time and costs.
Dirty air source testing: Every BSK pump undergoes rigorous testing with the dirtiest compressed air. This ensures it can handle the knitting mill’s dusty, contaminated air supply without clogging or performance drops—keeping production running smoothly.

Success: BSK Beats Rivals to Become the Go-To Accessory
After testing and comparing options, BSK stood out among competitors. Its ability to withstand harsh conditions, run non-stop, and simplify maintenance perfectly matched the customer’s needs. Today, BSK pneumatic diaphragm pumps are the standard accessory for the customer’s print equipment in knitting mills—delivering consistent performance and reducing the headaches of pump-related downtime.
Ready to Solve Your Print Equipment Pump Challenges?
If your knitting mill’s print equipment struggles with pumps that fail in harsh environments, require frequent maintenance, or can’t keep up with long runs—BSK has a solution. Our modular design, minimal wearing parts, and dirty air resistance are built for your production needs.
Contact BSK today to learn how our pneumatic diaphragm pumps can keep your print equipment running reliably, cut maintenance costs, and avoid unexpected downtime.
Explore BSK Pneumatic Diaphragm Pumps
Looking for the right AODD pump for your application? BSK Fluid Technology offers a complete range of pneumatic diaphragm pumps in aluminum, stainless steel, cast iron, PP, and PVDF. With 30+ years of manufacturing expertise and patented ceramic air valve technology, we deliver reliable fluid transfer solutions worldwide.
Learn more: About BSK Fluid Technology | AODD Pump Products | Pump FAQ | Contact Our Engineering Team
Frequently Asked Questions
Why choose an AODD pump instead of a centrifugal pump?
AODD pumps excel with high-viscosity fluids (up to 10,000 cP), abrasive slurries and shear-sensitive liquids. They run dry without damage, are self-priming, handle solids up to 6mm, and are safe for explosive environments with no electricity. Centrifugal pumps suit very high flow (>1000 L/min) or high pressure (>10 bar).
What industries use AODD pumps?
AODD pumps are used in chemical processing, food & beverage (dairy, wine, CIP), painting & coating, ceramics & mining (slurries, glazes), pharmaceuticals, oil & gas, water treatment, electronics, automotive, and pulp & paper. Their ability to handle abrasives, solvents and shear-sensitive fluids makes them ideal across these sectors.
What pump body materials are available?
BSK offers five body materials: Aluminum alloy (general purpose, oils), Stainless steel 316 (corrosive chemicals, food, pharma), Cast iron (low-cost industrial, wastewater), Polypropylene/PP (acids, alkalis, lightweight), and PVDF (strong acids, solvents, high-purity).
When should I choose PTFE vs Santoprene diaphragms?
Choose PTFE for strong acids, aggressive solvents, high-purity or temperatures above 80°C (shorter flex life, higher cost). Choose Santoprene for mildly corrosive/neutral fluids, longer diaphragm life (2-3x vs PTFE), food-grade use and cost efficiency.
Where can I get a quote for the right AODD pump for my application?
BSK Fluid Technology engineers provide a personalized pump selection within 24 hours. Share your fluid properties, flow rate and pressure requirements via the Contact page or WhatsApp +86-134-3105-8937, and we will recommend the optimal model from our aluminum, stainless steel, cast iron, PP and PVDF AODD range.



