Behind the Scenes: How Massage Bathtub Fittings Are Designed for Comfort & Safety
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- Issue Time
- Jul 15,2025
Summary
Massage bathtub is not a simple accumulation of parts, it has a set of rigorous scientific assembly logic and operating principles
Massage bathtub is not a simple accumulation of parts, it has a set of rigorous scientific assembly logic and operating principles, deserves to be more attention to understand.Trade buyers understand these, can clearly grasp the full details of the jacuzzi, and then can optimize their own services; consumers learn these, can clearly understand how their own hydrotherapy is to ensure both safety and comfort.
Spa comfort = Synergy of structure + Accessories
Hydrotherapy comfort is directly related to functional, user-friendly design. The design of a Jacuzzi is essentially a combination of scientifically rigorous structures and high-performance accessories.
Structure: Functional partitions form the basic framework of the Jacuzzi.
Broadly speaking, the structure of a Jacuzzi can be simply summarized in terms of appearance in terms of shape and material: most Jacuzzis are made of acrylic and come in round, square and oval shapes.
In a narrower sense, the structure of the Jacuzzi is more important to the function as a framework embedded in a variety of functional components, which is essentially the different functional systems are differentiated from each other and interconnected.
Accessories: Integration and embedding to realize the specific functions of the Jacuzzi
The realization of each system function of the massage bathtub needs specific accessories to land.There is both a clear functional division of labor between the accessories, but also the existence of complex connection relationship.For example, the nozzle is the core component of the massage system, you need to rely on the circulating pump drive to work; and thermostat is often linked with the water inlet device to ensure that every drop of water injected into the bathtub are within the comfortable temperature range.The electronic control panel serves as the "brain", undertaking the unified scheduling and precise control of the whole system.
Product Design Points of Jacuzzi
Materials: a matter of bathtub performance and safety
304 stainless steel is commonly used in spray nozzle shells, faucets, handrails and other metal parts, because of its corrosion resistance and high strength, ideal for long-term contact with water and wet environment parts.
Brass is commonly used in faucets, connectors, valves and other parts, with excellent machinability and corrosion resistance, to ensure long-term stable operation of the water system.
ABS is widely used in control panel shells, massage nozzle bases, covers, structural components, protective shells for electronic components, etc., with the advantages of impact resistance, heat resistance, insulation and easy processing.
PVC, especially rigid PVC is mostly used for water inlet and outlet pipes, joints, bases and other structural parts; soft PVC is commonly used in flexible water pipes, cable sheaths, drainage hoses and other locations, with flexible and corrosion-resistant properties.
PP is mainly used in non-transparent fittings such as pump housings, drainage devices, support parts, water storage containers, etc. It has good chemical stability and moisture resistance and is suitable for humid environments.
PC is mostly used for transparent observation windows, control panel protectors, lampshades, window panels and other parts that require high transparency and strength, with high toughness and impact resistance.
PU is mostly used for headrests, cushions, massage cushions, non-slip foot mats and other comfort accessories that require soft touch and pressure-resistant performance, both flexibility and durability.
Size: about bathtub installation and maintenance
Body Dimensions
It includes basic geometric data such as length, width, height, or diameter to determine if the part will fit correctly in the reserved space.
Connection Sizes
1.Socketed (SS): the connection is inserted inside the pipe, the inner diameter of the connection = the outer diameter of the pipe to be connected.
2.External plug-in (SP): The pipe is inserted inside the connector, and the outer diameter of the interface = the inner diameter of the pipe to be connected.
OD (Outside Diameter): Outside diameter; ID (Inner Diameter): Inner diameter.
Function: about bathing comfort and experience
Nozzle Layout
Ergonomically distributed (back, waist, legs and other acupoint areas) to ensure that the water flow massage covers the key areas.
Distinguish between hydro nozzle and bubble nozzle, adjusting the massage intensity through different hole diameters and angle design.
Power components
The power needs to match the cylinder volume to ensure the water flow and airflow.
Piping system
Adopt corrosion-resistant PVC pipe, strong sealing at the connection, pipe diameter to match the flow demand.
The piping layout should be easy to maintain in the later stage, to avoid the accumulation of dirt in the dead corner.
Safety Protection
The circuit module should have waterproof certification, with leakage protection device to prevent the risk of leakage.
The control panel adopts waterproof touch control design, and the key layout conforms to the operation logic with clear function partition.
Filtration efficiency
Built-in precision filter to filter impurities in water and avoid clogging the nozzle.
The filtration flow rate should be matched with the water pump to ensure clean water.
Value added: about product characteristics and benefits
Mute
Pump: low-noise motor and noise-reducing shell structure, effectively suppressing mechanical vibration and water impact sound during operation.
Sterilization: does not produce pungent odor, does not emit operating noise, truly efficient operation in the background.
Anti-blocking
Spray nozzle: adopts waterproof scale coating, which can effectively reduce mineral deposition and support regular and easy to wipe off the scale to extend the service life.
Water return: adopts the dual structure of beveled deflector and strainer protection, preventing the impurities inside the bathtub from entering the pump circuit and ensuring the stable operation of the circulation system for a long time.
Sense of atmosphere
Lighting: Multi-point LED lights, lighted nozzles, and bathtub light strips support a variety of variable light, creating an immersive visual atmosphere.
Aroma: Built-in aroma oil diffusion system, aroma diffusion and hot water, lighting together to build a relaxing sensory environment.
Hydrorelax Product Development Process Revealed
1.Demand Research
User pain points: where there is a problem is where there is hope, the product that can solve the problem will inevitably be selected by the market.
Market trends: market consumption signals for production activities have important guiding significance, the correct market judgment allows us to grasp the first opportunity to capitalize on strengths and avoid weaknesses.
Competitive substitution: know your enemy and know yourself.Research on competitors, alternatives, in accordance with industry standards, higher than the industry average, is the development of products should be pursued.
2.Design Seminar
Conceptual design: to clarify what problems we want to solve and what kind of structural and functional design can solve such problems.
Structural design: including shape, material, technology, etc., not the function itself, but constitutes the function.
Functional design: what kind of use problems should be solved, what kind of use problems can be solved, and what other problems can be solved.
Feasibility analysis: whether to comply with industry standards, whether to comply with the principle of ergonomics, whether to apply to the complex reality of the scene
3.Material test
Material test: the durability of the Jacuzzi accessories requires high durability, to test the different materials that can guarantee the service life and functional quality under different scenarios.
Compatibility test: simulate a variety of conditions of complex use scenarios, test the compatibility between different materials on the function of the impact
Safety test: additional safety test for Jacuzzi accessories that directly act on human body to avoid physical or chemical damage to human body.
4.Sample Printing
Modeling: obtaining samples through modeling and printing, which facilitates quick verification and control of appearance and quality issues.
Functional testing: Initial installation into the jacuzzi entity, in-depth testing of performance, durability, waterproofing, anti-leakage, load-bearing and other indicators.
Iterative optimization: adjust the design details and upgrade the product quality according to the test feedback until it meets the requirements.
5.Determine the mold
Design and manufacture: According to the final sample, design and produce injection molds, die-casting molds, etc., and determine the benchmark for subsequent mass production.
Trial mold verification: Apply the mold for trial production, and check whether the trial product meets the factory requirements, and continue to optimize the unreasonable problems.
6.Preparation for Certification
Confirmation of standards: Define the certification requirements of the target market and sort out the certification process and data list.
Sending for inspection and testing: Send the products to the designated laboratory for special testing on electrical safety, mechanical safety, environmental performance, etc. to ensure compliance with the certification standards.
Documentation preparation: Organize product specifications, test reports, circuit diagrams and other certification documents, submit applications and follow up on audit progress.
7.Batch Pilot Production
Batch trial production: trial production of 100-300 products to verify the production process and optimize process parameters.
Quality control: Sampling raw materials, inspecting production process, and fully inspecting product functions.
Trial production summary: analyze trial production data, optimize production tools, solve production bottlenecks, improve production process documents and quality standards.
8.Formal mass production
Scale production: launch mass production according to the optimized production process and quality standards, and monitor the production progress and quality data in real time.
Downstream management: Establish long-term cooperation with distributors, regularly evaluate the quality of cooperation, optimize ourselves and enhance competitiveness.
Market tracking: Collect user feedback, continuously optimize product design and production process, and accumulate data for subsequent iterations and upgrades.
Your Bathtub Product Specialist - Hydrorelax
Hydrorelax have proud OEM and ODM services because:
1.Rich experience in the industry, to ensure that the products directly hit the consumer pain points and market hot spots.
2.Strong research and development strength, to ensure that the products have both aesthetic value and powerful functions.
3.Superior manufacturing process, to ensure that the whole production process can be traced and the products meet the quality standards.
4.Flexible customization service, supporting the conception of the idea until the finished product is on the ground.
5.Efficient delivery system, quality and quantity of orders completed efficiently.
If you want to produce or customize high quality bathroom accessories with market competitiveness, you are welcome to send us your inquiry at any time!