WDP Series Bathtub Pump 370W-550W

WDP Series Bathtub Pump for Spa & Whirlpool Systems

The WDP Series Bathtub Pump is a compact drainage and circulation pump designed for whirlpool bathtubs, massage spa systems, hydrotherapy baths, and other water circulation applications. With its space-saving body and quiet performance, it is an ideal choice for residential spa and bathtub installations where space is limited.

Operating at 220-240V / 50Hz, the WDP Series Bathtub Pump delivers stable water circulation with automatic drainage, an anodized aluminum motor body, and IPX5 waterproof protection. Available in 370W and 550W models, this series combines simple installation with dependable long-term performance for European, Asian, and other 50Hz power supply markets.

Key Features

• Automatic drainage design
• Anodized aluminum motor housing
• Silent operation for reduced noise
• Compact and small-volume design
• Optional pneumatic air switch
• Class B insulation
• IPX5 waterproof protection
• High-efficiency motor with stable flow output
• Anodized aluminum motor housing for oxidation resistance
• IPX5 waterproof protection for humid bathroom environments
• IEC63 motor standard
• Durable construction for long service life
• CE, SAA, CB, TUV certified

Why Choose the WDP Series

The WDP Series Bathtub Pump is built around a high-efficiency motor with a compact footprint, making it one of the most space-friendly bathtub pump options in the NBHT range. Its anodized aluminum housing resists oxidation in humid bathroom environments, while the automatic drainage design keeps the system clean and ready for the next use. The optional pneumatic air switch provides convenient remote on/off control.

• Designed and tested for continuous duty in European, Asian, and other 50Hz markets
• IEC63 motor standard for consistent performance
• Stable water flow with low vibration and quiet operation
• Automatic drainage keeps the spa system clean and ready for the next use
• Optional pneumatic air switch for convenient on/off control
• CE, SAA, CB, TUV certified for export markets

Quality & Certification

The WDP series is manufactured under an ISO9001 quality management system, with every pump tested before shipment. All models carry CE, SAA, CB, and TUV certification, so the WDP Series Bathtub Pump meets the requirements of international export markets and can be installed with confidence in residential and commercial spa projects.

Performance Curves

The performance curve of the WDP Series Bathtub Pump shows the relationship between flow rate and head at 2850 r/min, helping you select the right model for your spa, whirlpool bathtub, or hydrotherapy system.

Size of Installation

Technical Parameter List

Model	Power	V/Hz	Qmax (L/min)	Hmax (Meter)	Fitting Size (mm)	G.W (kg)	Packing Size (mm)	Qty/20′
WDPE370	370W/0.5HP	220-240V / 50Hz	160	6.5	48.5/50	5.5	350×160×190	2725
WDPE500	550W/0.75HP	220-240V / 50Hz	200	10.0	48.5/50	6.2	350×160×190	2725

Available Models

The WDP Series Bathtub Pump is available in the following models:

• WDPE370 (370W/0.5HP)
• WDPE500 (550W/0.75HP)

Every model of the WDP Series Bathtub Pump comes with a standard 48.5/50 mm fitting size, and different power options are available to match various whirlpool bathtub and spa system requirements.

Customization & OEM Service

All models in the WDP series can be customized for OEM and ODM projects. Options include different power ratings, 50Hz or 60Hz voltage configurations, pneumatic air switches, special shockproof basements, and custom fittings. We support private-label packaging and export documentation, making the WDP Series Bathtub Pump a flexible choice for spa equipment brands, bathroom component distributors, and project buyers.

Packaging & Shipping

Each WDP Series Bathtub Pump is individually packed in a sturdy carton measuring 350×160×190 mm. Depending on the model, one 20-foot container can hold 2725 units, which keeps freight costs predictable for regular export shipments. All pumps are inspected before packing to ensure reliable arrival at your warehouse or job site.

Applications

The WDP Series Bathtub Pump is suitable for:

• Whirlpool bathtubs
• Massage bathtubs
• Spa pools
• Hydrotherapy systems
• Home spa equipment
• Residential spa facilities
• Water circulation systems

Designed for dependable performance with a focus on compact size and quiet operation, the WDP Series Bathtub Pump offers efficient water circulation, smooth operation, and long-lasting durability. It delivers a maximum flow of 160 to 200 L/min across 370W to 550W, making it an excellent choice for OEM manufacturers, spa equipment suppliers, and bathroom component distributors seeking reliable bathtub pump solutions.