One-Piece Bidet Toilet – Integrated Cleansing Solution

A one-piece bidet toilet combines the toilet bowl and bidet cleansing function into a single vitreous china fixture. This integration eliminates the need for separate bidet attachments, reducing installation complexity and potential leak points.

Design and Construction

The fixture is formed from high‑fire vitreous china, providing a non‑porous surface that resists staining and bacterial growth. An integrated nozzle assembly is concealed within the rear of the bowl, protected by a self‑closing cover when not in use. Overall dimensions conform to standard rough‑in dimensions: 380 mm width, 660 mm depth, and 400 mm seat height from finished floor.

Flushing Mechanism

Flushing is achieved via a siphon‑jet system with a 75 mm trapway, delivering a full‑flush volume of 4.8 L and a reduced‑flush option of 3.0 L for liquid waste. The jet nozzle is positioned to create a rapid vortex that clears the bowl in under 8 seconds under static pressure of 0.2 MPa. A dual‑flush actuator allows users to select the appropriate volume via a push‑button or lever.

Bidet Functionality

The bidet nozzle offers adjustable front and rear spray positions, with a range of ±15 mm horizontally and ±10 mm vertically to accommodate different user anatomies. Water temperature can be set between 20 °C and 40 °C using a thermostatic mixing valve, and pressure is regulated to 0.15 MPa for comfortable cleansing. A self‑cleaning cycle runs a 10‑second rinse with fresh water after each use, preventing nozzle fouling. An optional air‑dry function provides heated air at 45 °C for up to 30 seconds.

Materials and Finishes

The bowl and tank are manufactured from vitreous china with a glazed finish that meets ISO 10545‑12 standards for chemical resistance. The nozzle and internal waterways are made of 304 stainless steel, chosen for its corrosion resistance in potable water systems. The seat is available in polypropylene with an antimicrobial additive, or in urea‑formaldehyde molded wood for a premium feel.

Technical Specifications

Parameter	Typical Value	Unit
Bowl Height	400	mm
Trapway Diameter	75	mm
Full Flush Volume	4.8	L
Reduced Flush Volume	3.0	L
Nozzle Adjustment Range (Horizontal)	±15	mm
Nozzle Adjustment Range (Vertical)	±10	mm
Water Temperature Range	20‑40	°C
Operating Pressure	0.15	MPa
Seat Material Options	Polypropylene (antimicrobial) / Urea‑formaldehyde wood	–
Surface Gloss	≥80	GU

Applications

In commercial restrooms, the one‑piece design reduces the number of joints that can harbor pathogens, simplifying cleaning protocols for facility maintenance teams. Healthcare environments benefit from the hands‑free cleansing action, which reduces cross‑contamination risk compared to traditional toilet paper use. Hospitality installations value the sleek profile and water‑saving flush options, contributing to LEED‑compliant building certifications.

Quality Assurance

Each unit undergoes a hydrostatic leak test at 0.3 MPa for 5 minutes to verify seal integrity before leaving the factory. Flush performance is validated against ASME A112.19.2/CSA B45.1 standards, measuring bowl clearance time and trapway scouring. Nozzle durability is assessed by 50,000 actuation cycles with flow and temperature monitoring to ensure consistent operation. Final inspection includes visual gloss measurement (≥80 GU) and dimensional verification within ±2 mm of nominal sizes.

Customization Options

• Seat color: white, beige, or gray
• Nozzle finish: polished stainless steel or brushed nickel
• Flush volume settings: configurable dual‑flush volumes
• Optional integrated deodorizer cartridge

Ordering and Lead Time

Minimum order quantity is 20 units for standard configurations, with mixed SKUs allowed upon request. Production lead time averages 4‑6 weeks after receipt of approved drawings and deposit, depending on selected options and current capacity. Products are packed in double‑wall corrugated cartons with foam corner protectors, palletized for export, and include installation hardware and a detailed manual.

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