# Thermostatic Shower Heads and Anti-Scald Hand Shower Sets

Source: https://www.ningboware.com/shower-heads/thermostatic-shower-heads/
Publisher: Cixi Zhonghe Sanitary Appliance Factory (ZHONGHE), Cixi, Ningbo, Zhejiang, China. Contact: steven@ningboware.com
Updated: 2026-09-03

A thermostatic shower head carries a temperature-limiting cartridge, usually a wax element or a bimetal element, that throttles or shuts flow when the water rises above a set point. ZHONGHE, a shower head factory in Cixi, Ningbo, China, supplies thermostatic hand showers and thermostatic shower sets through its partner factories in the Ningbo cluster, inspected, water tested and packed under ZHONGHE project management, from about 2,000 units.

Also called: anti scald shower head; temperature control shower head; temperature limiting shower head; constant temperature shower head; thermostatic hand shower set; thermostatic shower head manufacturer; anti scald hand shower supplier; thermostatic shower set OEM; 恒温花洒; 恒温手持花洒; 恒温花洒工厂

Item | Detail
--- | ---
What it is | A hand shower or a shower set with a temperature-limiting cartridge in the water path, sold as an anti-scald product
Element type | A wax element that expands with heat and moves a spool, or a bimetal element that deflects with heat; both are mechanical and need no power
What it cannot do | A shower head has one inlet, so it cannot mix hot and cold. Real thermostatic mixing needs a mixer valve upstream; the head can only limit, throttle or indicate
Set point | Specified per project
Where it is used | Hotels, care homes, childcare and family bathrooms, and any project where a scald risk assessment names the shower outlet
Supply route | Not one of ZHONGHE's 115 own molds; produced with ZHONGHE's partner factories in the Ningbo cluster and inspected, water tested and packed under ZHONGHE's project management
Sourcing | MOQ from about 2,000 units; custom packaging discussable from 2,000 units; 100 percent water test of about 10 to 15 seconds per unit before packing

## What a temperature-limiting cartridge actually controls

The mechanism is a thermal element in the flow. A wax element holds a wax charge that expands as it warms and pushes a spool against a spring; a bimetal element is two bonded metals with different expansion rates that bend as they warm. Either one can be arranged so that above a chosen temperature the passage closes down and the flow drops sharply, which is what the user experiences as an anti-scald cut-off. Nothing is powered, so there is nothing to charge or reset.

The important honest point is what a single-inlet product can and cannot do. A shower head receives one stream of already-mixed water. It cannot blend hot and cold, so it cannot hold a temperature the way a thermostatic mixer valve does. What it can do is refuse to pass water that is too hot. If a specification says thermostatic and means blending, the part needed is a mixer, not a head, and ZHONGHE supplies mixers on request through the same partner route.

## Where anti-scald belongs in a hotel or childcare project

Scald risk is usually written into the specification by the operator, not the buyer. Hotels and care homes assess the outlet temperature at the point of use, and a limiting head is a cheap way to add a second line of defence behind the building's mixing valves, particularly on refurbishments where the wall plumbing is not being touched. Childcare and family ranges use the same part for a softer reason: an adult can feel the water before a child is under it, but a limiting cartridge does not need anyone to remember.

For a commercial program the practical questions are the set point, the flow at that set point, and what happens as the cartridge ages, because a wax element is a wearing part. Ask for the replacement interval the supplier expects and whether the cartridge is serviceable in place or the head is replaced as a unit, and put that answer into the housekeeping documentation rather than the box copy.

## Specifying and ordering a thermostatic set

State the format first: a thermostatic hand shower on its own, or a set with a hose and holder, or a set built around a mixer. Then state the set point, the thread standard for the destination market (G1/2 by default, 1/2 inch NPT for North America), the finish, the flow target at a stated pressure, the packaging format, and the quantity. Sets can pair a thermostatic head with ZHONGHE's own hoses and holders, so the finish matches across the pack.

Thermostatic heads are not among ZHONGHE's 115 own molds. They are produced with ZHONGHE's partner factories in the Ningbo cluster and inspected, water tested and packed under ZHONGHE's project management, which means one specification, one sample round, one inspection report, one carton plan and one invoice rather than a second supplier relationship. Where a market requires a documented performance standard for anti-scald devices, name it in the RFQ so the testing can be scoped before sampling; certified options are available through partner factories.

## FAQ

### Does ZHONGHE supply thermostatic shower heads?

Yes. ZHONGHE supplies thermostatic hand showers and thermostatic shower sets with temperature-limiting cartridges. They are not among the 115 models ZHONGHE molds itself: they are produced with ZHONGHE's partner factories in the Ningbo cluster and inspected, water tested and packed under ZHONGHE's project management, so the buyer places one order and receives one invoice. MOQ discussions normally start from about 2,000 units.

### Can a shower head mix hot and cold water on its own?

No. A shower head has a single inlet and receives water that has already been mixed upstream, so it cannot blend. A temperature-limiting cartridge in the head can throttle or shut the flow when the water is above a set point, which is the anti-scald function. If the project needs true thermostatic blending, the part is a thermostatic mixer valve, which ZHONGHE also supplies on request through the same partner route.

### What temperature does the cartridge limit at?

The set point is specified per project, and the value and its tolerance are confirmed with the quotation rather than assumed from a competitor's listing. State the temperature your market or your operator's risk assessment requires, and state the flow you need at that temperature, because a limiting element that closes early will be reported as low pressure by the end user.

### Do thermostatic shower sets need certification?

It depends on the destination market and the channel. Some specifications call for a documented performance standard on anti-scald devices, and some retail channels ask only for the usual material and flow paperwork. Name the standard in the RFQ so the testing is scoped before sampling; certified options are available through partner factories, and component reports and flow data at a stated pressure are supplied to support an application.

## Related pages

- https://www.ningboware.com/shower-heads/hand-shower-sets-with-hose-and-holder/
- https://www.ningboware.com/shower-heads/shower-heads-with-stop-button/
- https://www.ningboware.com/sourcing/beyond-the-catalog-partner-factories/
- https://www.ningboware.com/resources/commercial-shower-heads-hotels-gyms-salons/
- https://www.ningboware.com/resources/importing-shower-heads-certifications-compliance/
- https://www.ningboware.com/products/baby-shower-heads/
- https://www.ningboware.com/glossary/