I. Product Overview

This pump integrates a shell made of hydrolysis-resistant glass fiber reinforced PBT material, precision injection molded into a single piece, specifically designed for an integrated carrier shell for small water circulation booster pumps. It combines the water passage pipe, motor containment cavity, and mounting bracket into a single plastic component, significantly reducing the number of parts in the entire unit, making assembly simpler.

The outer wall of the stepped water inlet and outlet joints at both ends of the shell is equipped with annular anti-slip patterns, which can tightly fit the water supply hose, preventing leakage and easy detachment; the joint surface features injection-molded arrow markings, clearly indicating the direction of water flow, thus avoiding reverse installation and potential circulation failure; the installation ear holes are internally fitted with metal steel sleeve, ensuring that screws can be repeatedly tightened and loosened without plastic thread slipping or cracking, providing long-term stable and reliable fixation.

The shell inner cavity is fully arranged with reinforcing ribs, which have strong pressure-bearing capacity; under the water pressure fluctuation conditions, the shell will not expand or deform. The base material is resistant to hot water hydrolysis, has excellent high-temperature resistance and insulation properties; it is not easy to age and crack when flowing through warm water for a long time. It can also isolate the working heat of the motor, insulate and reduce noise, and protect the internal coil and bearing from erosion by moisture and dust. Molds can be replicated in a 1:1 ratio based on the pump power and pipeline size, and after molding, each piece is subject to hydrostatic testing and assembly compatibility testing. Only after passing the test can the products be delivered in bulk.

II. Core Highlights of Craftsmanship

1. Multi-structure integrated injection molding, no hidden risk of joint leakage
   Waterway cavity, motor compartment, mounting bracket, and water pipe joints are all formed in one piece, with no gaps or joints, completely eliminating the issue of water leakage at seams, and boasting superior pressure-sealing properties compared to assembled shells.
2. Pre-buried metal steel sleeve for installation holes, wear-resistant and anti-slip thread lifespan doubled.
   The metal sleeve is pressed into the fixed hole, distributing the screw tightening pressure, and frequent inspections and disassembly will not cause the plastic hole to crack, suitable for long-term maintenance and operation of the equipment.
3. Pipe ladder anti-slip structure, pipe sleeve joint sealed and not falling off
   Multi-layer annular convex rib design, the hose fits tightly after insertion, will not pull out or leak under water pressure impact, ensuring stable sealing for domestic water circulation systems.
4. High temperature and hydrolysis-resistant special plastic, durable in hot water environment
   PBT glass fiber material can withstand hot water circulation at 70~90℃ for a long time, resist scale erosion, and is not prone to hydrolysis, whitening, and cracking, suitable for water heaters and floor heating wet and warm working conditions.

Section 3: Optional Customizable Raw Materials

1. Glass fiber reinforced hydrolysis-resistant PBT (Recommended)
   Excellent resistance to hot water, creep resistance, and optimal pressure-bearing performance; the universal preferred material for water heating circulation pump shells.
2. Add-fiber PA66 Nylon
   High resilience and cost-effective impact resistance, suitable for booster pumps for constant temperature purified water equipment.
3. Food-grade hydrolysis-resistant PP
   Compliant with water safety standards, dedicated shell for drinking water purification equipment.

4. Optional Surface Treatment Processes

Shell Appearance: Standard glossy black finish, available in custom matte brushed, fine texture surfaces; white and gray shell color matching can be customized as required.

Chapter 5: Applicable Application Scenarios

✅ Built-in cold and hot circulation booster pump housing for gas water heater
✅ Home-use RO water purifier membrane booster pump valve body shell
✅ Small ground heat pump water circulation silent pump plastic assembly housing
✅ Built-in water flow valve housing for bathtub shower and constant temperature faucet
✅ Protection shell for tea drinker, boiling water machine hot water circulating pump

Six, Core Product Advantages

1. All waterway paths, installation spacing, and cavity sizes are adjustable to meet requirements, compatible with various power pumps.
2. Integrated structure of water passage pressure-bearing + motor protection + assembly fixation, simplifying the whole machine assembly process
3. Heat-resistant, anti-aging, waterproof, and non-slip, strong durability in damp and humid conditions
4. Insulation, heat insulation, and noise reduction, lowering the operational noise of the pump, for a better user experience.
5. Support for new product small batch trial assembly and water testing, sufficient mass injection capacity, stable and controllable delivery cycle

Section 7: Common Procurement FAQ Q&A

Q1: What is the maximum water pressure the housing can withstand?
A: Standard structure conventional pressure resistance 0.6~1.2MPa, pressure resistance limit can be enhanced by increasing shell wall thickness and adding internal ribs.
Q2: Which material is most suitable for long-term passage of 85℃ hot water?
A: Prioritizing hydrolysis-resistant glass fiber PBT material, it boasts the best resistance to high temperatures and hydrolysis, and is less prone to aging and leakage.
Q3: Can the connector style be changed to a quick-insert straight-through interface?
A: Full support, can modify the inlet and outlet structure as required, cancel the arrow symbols, and adjust the installation position.
Q4: Can the wall thickness of the shell be increased to enhance impact resistance?
A: Wall thickness from 1.5mm to 4mm is available for customization, with thicker walls offering better pressure and shock resistance.