Trafag EXPK 944/947/953 Ex Pressostat series provides a robust, ATEX and IECEx-certified solution for precision pressure monitoring where safety and reliability are non-negotiable.
Rugged construction, high-quality materials, and advanced technology make it resistant to extreme conditions while ensuring accurate measurement and stable operation. Trafag’s electromechanical pressure switches, also known as pressostats, can be operated maintenance-free for decades, even under harsh conditions. Various versions with bellows, diaphragm, and piston sensors cover a wide range of pressure ranges, media, and load profiles for the most diverse applications.
Technical Data of Trafag EXPK 944/947/953
| More Information | |
| Product code | 944/947/953 |
| Name | EXPK |
| Designation | Ex Pressostat |
| Product category | Mechanical pressure switches |
| Measuring range | 1 … 10 to 60 … 600 bar |
| Measuring principle | Piston |
| Applications | II 2G / D |
| Approval/conformity | IECEx, ATEX, UKEX |
| Repeatability | ± 1.0 % FS typ. |
| Output signal | 1 Floating change-over contact (SPDT) |
| Electrical connections | Screw terminal |
| Pressure connections | G1/4″ f, G1/2″ m |
| Media temperature | NBR: -30°C … +100°C FPM: -15°C … +150°C |
| Ambient temperature | -40°C … +65°C |
Main Features of Trafag EXPK 944/947/953 Ex Pressostat
- Rugged aluminium housing, option: housing stainless steel
- IP66-rated protection
- Diverse mounting positions
- Ex db eb IIC T6 Gb
- Ex tb IIIC T80°C Db
Application of Trafag EXPK 944/947/953 Ex Pressostat
- The Oil and Gas Sector: for regulating pressure in transfer pipelines, oil refineries, and offshore platforms.
- The Petrochemical Sector: used in dangerous settings to regulate pressure during chemical reactions.
- Sewage and Water Treatment: maintaining ideal pressure in water filtration and treatment systems that are susceptible to explosions.
- The Energy Sector: utilized in high-risk settings for turbine, boiler, and power system applications.
- Exploiting: for uses involving pressure control in large machinery and subterranean systems.
- The Pharmaceutical Sector: keeping an eye on pressure in industrial processes in settings that need security, for example.
Source: trafag.com
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