Applications & Markets
Low-pressure water delivery remains a persistent challenge for commercial and residential dispensing equipment using 5-gallon bottles. Diaphragm pumps that can sustain 40 psi while running intermittently are often specified for coffee brewers and refrigerator ice lines. The SAILINGFLO BW4003A fits this niche with its 3.8 LPM flow rate and 100-240Vac input, making it a candidate for OEMs and maintenance teams replacing underperforming transfer pumps.
Product Description
The BW4003A is a low-pressure diaphragm pump manufactured under the SAILINGFLO brand. It runs on 100-240Vac at 0.5A, delivers up to 3.8 liters per minute at a maximum pressure of 40 psi, and includes 20 feet of 1/4-inch tubing. The pump is rated for intermittent duty cycles, matching the on-demand nature of drinking water dispensers and coffee machines.
Key specifications ranked for buyer evaluation:
- Max flow: 3.8 LPM
- Max pressure: 40 psi
- Power input: 100-240Vac, 0.5A
- Port size: 1/4 inch
- Included tubing: 20 feet
- Duty cycle: intermittent
Company Profile
Xiamen Usail Industry And Trade Co., Ltd. is the listed supplier of the SAILINGFLO BW4003A. The company also handles bilge pumps, agricultural sprayer pumps, RV water pumps, and drinking water pumps, with ODM/OEM support available.
Quality & Compliance

The pump ships with CE and RoHS certificates. Warranty is one year. As with many diaphragm pumps for this voltage range, buyers should confirm duty cycle compatibility with their specific equipment.

Buyer Checklist
- Does your application operate on 100-240Vac power? The BW4003A is rated for that range.
- Is a 1/4-inch port connection compatible with your existing tubing?
- Will 3.8 LPM flow and 40 psi maximum pressure meet your dispensing needs?
- Does your equipment use intermittent duty cycles rather than continuous operation?
- Do you need 20 feet of included tubing for installation?
- Are CE and RoHS certificates and a one-year warranty required by your procurement policy?
CTA
Procurement teams and OEM buyers can contact Xiamen Usail Industry And Trade Co., Ltd. through the related product listing on GlobalOEMs for current pricing, samples, and ODM/OEM customization details.

Specifications listed are based on supplier-provided data and may change without notice. Buyers should verify compatibility and certifications with the manufacturer before ordering.

By:GlobalOEMs