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2024-11-06 09:37:00

Pneumatic safety valves: why choose the PC50 as successor to the PC53?

Average reading time 3,5 minutes By Rob Hoogvorst on 6 November 2024

Safety and reliability are crucial in industrial processes involving pressure protection. The PC53 Pneumatic Control Unit from Bopp & Reuther has proven to be a reliable choice for spring safety valves in applications with steam, gas, and liquids for many years. While the PC53 remains serviceable, the fact that it has been out of production since 2017 presents challenges. Parts are becoming increasingly difficult to obtain, potentially risking system continuity in the future. That’s why Hitma offers the PC50 as a modern successor to the PC53, designed to keep your systems safe and efficient.

The PC53: Reliable, but out of production

Since 1986, the PC53 has been a trusted component in many industrial installations. This pneumatic control unit was designed to ensure system safety by regulating overpressure in a controlled manner, which is critical in demanding processes. Although the PC53 continues to perform well, its production ceased in 2017. As parts become scarcer, this could eventually impact the reliability and continuity of installations.

It’s important to plan ahead and consider replacement options in time to ensure your system remains safe and dependable.

The PC50: The modern, reliable successor to the PC53

In 2000, IMI Bopp & Reuther introduced the PC50 as the successor to the PC53. The PC50 is designed to provide the same functionality while incorporating improvements that better meet the demands of modern industrial processes. Maintaining the core operational principles of the PC53, the transition to the PC50 is straightforward and requires minimal modifications. Additionally, the dimensions and connections of the PC50 can be tailored to meet your existing specifications, ensuring seamless integration into your current setup.

Key advantages of the PC50

The PC50 offers several advantages over its predecessor, excelling in both performance and stability:

  • Smaller pressure tappings: The PC50 features smaller-diameter pressure tappings (Ø21.3 x 3.2 mm), reducing sensitivity to vibrations in industrial installations.
  • Enhanced heating system: Specially designed for Ex applications in low temperatures (-10°C to +5°C), with an upgraded heating system for optimal control and monitoring.
  • External insulation option: For extreme environments with temperatures below -20°C, an additional insulation option is available. For subzero applications, it is recommended to insulate tapping lines and equip them with heat tracing.

These innovations make the PC50 a sustainable and future-proof choice that meets the needs of modern industrial processes.

Reliable Service and Support from Hitma

At Hitma, we understand the importance of reliable service and support for your systems. Our certified service engineers provide maintenance and optimization for both the PC53 and PC50. With a service contract, you’re assured of preventive maintenance, ensuring a safe and well-functioning installation.

Secure the Future of Your Spring Safety Valves

The PC53 can still operate within your system, but the growing scarcity of parts presents a challenge. By transitioning to the PC50, you ensure the reliability and continuity of your installation to maintain optimal performance into the future. Want to learn more about the benefits of the PC50 and how it can enhance the safety of your spring safety valves? Feel free to reach out—we’re happy to assist!

For more information about using pneumatic control units with spring safety valves, be sure to check out my earlier blog.

Rob Hoogvorst
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