At DDM Sensors you will find miniaturized, robust and media-tight refrigerant pressure sensors, specifically developed for applications with refrigerants such as HFCs or HFOs.
Our proven pressure sensors for refrigeration technology
The proven pressure sensor models from DDM Sensors for use in refrigeration technology.
Pressure Sensor PV15
With a diameter of only 15 mm, the PV15 detects specific pressure ranges for refrigerants, for example from 0 to 150 bar, and offers a burst pressure of up to 1,200 bar. High precision is ensured by a small total error band (TEB) of up to +/- 0.25 % FS. The media-contacting parts are made of 1.4435/1.4404 stainless steel and have common thread connections such as M6x1 or M8x1, with others possible on request.
The PV15 pressure sensor is ideal for use in compact heat pumps, mobile air conditioning systems, test stands, mobile applications, and automotive testing.
excl. 19% VAT plus shipping costs
Ø: 16 mm
Gauge pressure: (-1) 0…2,5bar to (-1) 0…150 bar (Any ranges in between)
Absolute pressure: 0…2,5bar to 0…150 bar (Any ranges in between)
Output: 0,5 to 4,5 V
Comp. Temperature Range: -40°C to +125°C
Pressure connection: M6x1; M8x1
Datasheet: pdf | 327 KB
excl. 19% VAT plus shipping costs
Pressure Sensor PV22
excl. 19% VAT plus shipping costs
Ø: 22 mm
Gauge pressure: 100 mbar to 150 bar (Any ranges in between; Bidirectional)
Absolute pressure: 2 bar to 150 bar (Any ranges in between)
Output: 0 to 5 V or 1 to 6 V
Comp. Temperature Range: -40°C to +125°C
Pressure connection: M10x1; M14x1,5; 7/16 – 20UNF; G1/4 male; Rectus 21
Datasheet : pdf | 271 KB
excl. 19% VAT plus shipping costs
The PV22 has a diameter of 22 mm and covers high-pressure applications up to 150 bar and higher. Its burst pressure is up to 1,200 bar. It ensures high precision with a small total error (TEB) of up to +/- 0.25 % FS and offers various output signals, including 0-5 V, 1-6V, 0-10V, and 4-20 mA. The media-contacting parts are made of 1.4404/1.4435 stainless steel, and a wide selection of connections is available, including the 7/16-20 UNF for Schrader valve connections.
The PV22 pressure sensor is ideal for use in industrial refrigeration systems, commercial cooling, chillers, mobile applications, and automotive testing.
Which refrigerants are the media-contacting parts of the pressure sensors compatible with?
Through the use of 1.4404 / 1.4435 (316L) stainless steel, the media-contacting parts are compatible with practically all refrigerants used in refrigeration technology.
Natural refrigerants
- CO₂ (R744)
- Propane (R290)
- Isobutane (R600a)
- Ethane (R170)
- Propene (R1270)
- Ammonia (R717)
HFC refrigerants
- R134a
- R404A
- R407C
- R410A
- R507A
- R125
- R32
- R143a
HFO and low-GWP mixtures
- R1234yf
- R1234ze
- R454B
- R452B
- R513A
- R515B
Special and specialized refrigerants
- R23
- R116
- R245fa
- R236fa
- R508B
Requirements for pressure sensors in the refrigerant circuit
Pressure sensors in the refrigerant circuit must meet specific requirements. These include:
High burst pressure resistance and robustness against pressure peaks and transients, as they particularly occur in CO2 systems.
A absolute tightness (hermeticity) is essential to prevent refrigerant losses and ensure system efficiency. To verify the tightness, each sensor undergoes a 100% helium leak test, in which the seal-free welded connections at the pressure port are tested.
Furthermore, material compatibility is crucial to ensure resistance against aggressive and natural refrigerants (e.g. CO2, R290, ammonia) as well as the oils used.
For efficient control of the refrigeration circuit and for energy saving, low measuring errors and thus high precision over wide temperature ranges are required.
DDM Pressure Sensors: The solution for your refrigerant application
DDM pressure sensors combine hermetic tightness, high burst pressure resistance, and excellent measurement accuracy in a compact, durable design. The laser-welded stainless steel diaphragm and the completely seal-free sensor concept enable permanently safe use in demanding refrigerant circuits.
Maximum robustness and longevity
For maximum safety in demanding applications, the pressure sensors have extremely high burst pressures, which can reach, for example, up to five times the nominal pressure. They are also insensitive to pressure transients as well as strong vibrations and shock loads.
Precise measurements for optimal system efficiency
Exact control of the system is made possible by a very small temperature-compensated error (Total Error Band, TEB). The excellent long-term stability of the sensors ensures the performance of the plant over its entire service life.
Miniaturized design for flexible integration
Particularly compact designs, for example with diameters from 15 mm, allow the installation of the sensors even in very confined spaces, as often found in modern refrigeration and air conditioning systems.
Advantages at DDM Sensors
DDM Sensors offers quality “Made in Germany”, as development and manufacturing take place exclusively at the company’s location in Germany. Through high vertical integration and strategic warehousing, a secured supply chain with long-term availability is guaranteed, ensuring a constant and reliable supply of your production.
Custom pressure sensor solutions for refrigerants
For specific application requirements, DDM Sensors offers the possibility to modify pressure ranges, electrical connections, and output signals to realize a precisely fitting sensor solution for your system.
Typical application areas of our refrigerant pressure sensors
The pressure sensors from DDM Sensors are used in a variety of applications. These include
- heat pumps
- air-to-water as well as brine-to-water systems
- vehicle air conditioning systems, especially for electric vehicles with CO2 systems
- commercial and industrial refrigeration systems
- test stands
Get advice on pressure sensors for refrigerants now
Contact our technical experts for a non-binding consultation to discuss your specific requirements and receive a customized solution.