Thermowell for temperature sensor | stainless steel | for immersion sensors | SSPVA100

Name: Thermowell for temperature sensor | stainless steel | for immersion sensors | SSPVA100
SKU: SSPVA100
Price: 24.2 EUR
Availability: InStock

Code: SSPVA100

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Price 24.20 € VAT incl.

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Stainless steel thermowell for mounting immersion temperature sensors in pipelines and tanks. Pressure and flow are taken by the thermowell, so the sensor can be replaced without draining the system.

Product description

Thermowell for temperature sensor SSPVA100 – stainless steel

A thermowell is a stainless steel tube with a closed end, screwed into a pipeline or tank, into which an immersion temperature sensor is inserted. It separates the sensor from the liquid: pressure and flow are taken by the thermowell, and the sensor can be pulled out and replaced without draining the system. In our range, SSPVA100 is paired with a PT1000 immersion sensor with a 100 mm probe.

Key point:
Without a thermowell, replacing a sensor means draining the system, reducing pressure and extra plumbing work. The thermowell is installed in the pipe once, and the sensor is then serviced as a replaceable component. Stainless steel resists corrosion in water, district heating and glycol systems.

Material
stainless steel

Purpose
for immersion sensors

Pairs with
PT1000, 100 mm probe

Mounting
screwed into pipe or tank

Operating principle

The thermowell is screwed into a socket (boss) on the pipeline or tank and sealed. Its closed end is immersed in the liquid, while the inner bore stays accessible from outside – the sensor probe is inserted into it and secured.

Heat passes from the liquid through the thermowell wall to the sensor. For the sensor to respond quickly and accurately, the probe must match the inner diameter of the thermowell and reach the bottom; the gap can be filled with thermally conductive paste.

Since the pressure is taken by the thermowell, the sensor can be removed while the system is running – the main advantage of a thermowell when servicing heat substations and boiler rooms.

Why use the SSPVA100 thermowell?
A thermowell lets you prepare the measuring point in the pipeline once and later replace or check the sensor without plumbing work. It also protects the sensor probe from the mechanical effect of the flow and direct contact with the medium.

Technical specifications

Product type	Thermowell for immersion temperature sensor
Manufacturer / model	Manufacturer not specified / SSPVA100
Material	Stainless steel
Purpose	Mounting immersion temperature sensors in pipelines and tanks
Pairs with	PT1000 immersion sensor, 100 mm probe (TIC PT1000)
Mounting	Screwed into a pipeline or tank socket
Length, thread, inner diameter, pressure rating	Check with our sales manager before ordering

Main functions

Sensor protection – pressure and flow are taken by the thermowell, not the sensor probe
Replacement without draining – the sensor can be pulled out while the system is running
Stainless steel – corrosion resistance in water, district heating and glycol systems
Fixed measuring point – the sensor always returns to the same position
For checks and calibration – the sensor is easy to remove and compare with a reference thermometer
Pairs with the PT1000 immersion sensor – in our range intended for a 100 mm probe

How does it differ from similar products?

Sensor without a thermowell	A directly screwed-in sensor responds slightly faster, but cannot be replaced without draining the system.
Brass thermowell	Brass conducts heat well, but stainless steel is more resistant to corrosion and more aggressive media.
Clamp-on sensor on the pipe	Installed without cutting into the pipe, but measures the wall temperature – a thermowell gives more accurate measurement.

Where is it used?

Heat substations
Boiler rooms and heating systems
Hot water tanks (calorifiers)
Cooling and glycol circuits
Heat pump systems
Industrial pipelines

Use by need

For beginners.
The thermowell is screwed into the pipe by a plumber or installer when the system is depressurised. After that, the sensor is simply inserted and secured.

For experienced installers.
Before installation, check the thread against the socket, the thermowell length against the pipe diameter and the inner diameter against the sensor probe. Seal the thread with a suitable material; the inside of the thermowell can be filled with thermally conductive paste.

For energy engineers / designers.
Select the thermowell according to system pressure, temperature, medium and flow velocity. The insertion depth should place the tip in the middle of the flow; in small-diameter pipes install the thermowell in an elbow or at an angle.

Practical application

During the renovation of a heat substation, sockets are welded into the supply and return pipes and SSPVA100 thermowells are screwed in, with PT1000 sensors with 100 mm probes inserted. When one sensor fails a few years later, it is replaced in a few minutes – the system does not need to be drained.

Pros / advantages

Sensor can be replaced without draining the system
Stainless steel – corrosion resistant
Protects the sensor from pressure and flow
Convenient for checking and calibrating the sensor
Pairs with the PT1000 immersion sensor (100 mm probe)

Cons / limitations

Slightly slower sensor response than with direct immersion
Requires a socket (boss) on the pipeline
Length, thread, inner diameter and pressure rating for this batch are not confirmed – please check

Safety and installation notes

⚠ Install and remove the thermowell only when the system is depressurised and the liquid has cooled – hot liquid can cause scalding.
Seal the thread with a material suitable for the medium and temperature; check for leaks after filling the system.
Do not exceed the pressure rating of the thermowell – confirm it before ordering.
The sensor wires are connected to the controller by a qualified electrician with the controller power disconnected.

Quick selection guide

Stainless steel

For immersion sensors

PT1000, 100 mm

Replace without draining

Suitable when you need:

To create a measuring point for an immersion sensor in a pipeline or tank
To replace the sensor without draining the system
To protect the sensor from pressure and flow

Check before choosing:

Thermowell thread against the pipeline socket
Inner diameter and length against the sensor probe
Pressure and temperature limits for the system

Important reminder: A thermowell is not a measuring device – it only protects the sensor. Measurement accuracy depends on the sensor and on how precisely its probe fits the thermowell.

☝ Elsprendimai.eu recommends:

PT1000 immersion temperature sensor – pairs with this thermowell, 100 mm probe
Liquid flow and temperature meters – other sensors for liquid systems
Sensors and transmitters – selection guide – how to choose the sensor type
Contact us – we will help confirm the thermowell dimensions for your sensor

FAQ

What is a thermowell for?
It allows the sensor to be installed in a pressurised pipeline and replaced without draining the system. Pressure and flow are taken by the thermowell.

Does the thermowell fit any sensor?
No. The diameter and length of the sensor probe must match the inside of the thermowell. In our range this thermowell is paired with a PT1000 immersion sensor with a 100 mm probe.

What thread and length does this thermowell have?
Please confirm the exact dimensions with our sales manager before ordering – we will confirm them for the specific batch.

Does a thermowell slow down the measurement?
Slightly – heat has to pass through the wall. When the probe fits the thermowell precisely and thermally conductive paste is used, the delay is usually insignificant in heating systems.

Can the thermowell be unscrewed while the system is running?
No. It can only be removed after relieving pressure and letting the liquid cool. While the system is running, only the sensor is pulled out of the thermowell.

Why stainless steel?
It resists corrosion in water, district heating and glycol systems and keeps its shape and tightness for a long time.

Sources: No manufacturer datasheet for code SSPVA100 was found; the general purpose and material of thermowells are described according to the product designation. Length, thread, inner diameter and pressure rating are not stated. Checked 2026-10-18.

Stainless steel thermowell for immersion temperature sensors

The SSPVA100 stainless steel thermowell is used to mount immersion temperature sensors in pipelines and tanks. It takes the pressure and flow, so the sensor can be replaced without draining the system; it pairs with a PT1000 sensor with a 100 mm probe.

Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

CE certificate – a guarantee of safety, quality, and compliance

This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.

CE certification means that the product has been evaluated according to the main criteria:

Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purpose

CE marking allows this product to:

be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environments

The CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.

What does this mean for you as a buyer?

Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions