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GRACO Diaphragm Pump DB3321
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Popular Compatible Models
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Fluid Inlet Size (in) 1-1/2
Fluid Inlet Thread Gender Female
Fluid Outlet Size (in) 1-1/2
Fluid Outlet Thread Gender Female
Fluid Section Material Polypropylene
Manifold Configuration End Port
Manifold O-Ring Material PTFE
Material Polypropylene
Maximum Air Consumption (SCFM) 125
Maximum Air Pressure (MPa) 0.827
Maximum Air Pressure (psi) 120
Maximum Cycle Rate (CPM) 200
Maximum Flow Rate (GPM) 100
Maximum Fluid Pressure (MPa) 0.827
Maximum Fluid Pressure (psi) 120
Maximum Operating Temperature (°F) 150
Maximum Solid Size (in) 0.1875
Power Source Air
Seat Material Polypropylene
Type Pneumatic Diaphragm Pump
Why Global Buyers Choose O&Kmarts
- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
- Faster global delivery via FedEx / DHL / UPS
- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: How are long-term component supply risks handled if our factory relies heavily on a specific part sourced from your platform?
A: We offer supply chain buffering and safety stock agreements for industrial clients. By sharing your annual procurement forecast, we can pre-allocate inventory in our warehouses to guarantee a continuous, predictable supply and protect your production lines from market shortages.
Q: How does OKmarts mitigate international shipping delays caused by customs clearance issues?
A: We provide meticulous commercial invoicing, precise HS Code classification, and complete export documentation to minimize customs holding times. For major regional markets, we work alongside experienced customs brokers to ensure compliance with import frameworks.
Q: What quality certificates or compliance documentation can be provided with the shipment?
A: Upon request, we provide standard manufacturer compliance documentation, including Certificates of Conformance (CoC), factory inspection reports, and CE/RoHS certification data sheets to ensure alignment with international regulatory and safety standards.
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Q: How can I view the manufacturing date or expiry date of a product?
A: For products that require a manufacturing date or expiry date, we provide the relevant information on the product details page. You can review this information before making a purchase to ensure the product meets your requirements.
Q: Can I get a refund if the price of a product drops shortly after my purchase?
A: Unfortunately, we cannot offer a refund if the price of your purchase decreases. However, within a certain period of time, we can provide you with a certain amount of discount coupons as compensation, ensuring your satisfaction. Our prices may vary due to promotions and market conditions, among other factors. We recommend making your purchase based on the current price at the time of purchase.
Q: Is it possible to communicate with sellers or other buyers?
A: Yes, we offer an online customer service system and a user review section where you can communicate with merchants or other buyers, ask questions, or share your shopping experience.
Customer reviews
Mar 09, 2022
Anonymous userAll was ok! No problems whatsoever.Helpful?(0)(0)







