What is the VARIVENT® Overflow Valve Type Q?
The VARIVENT® Type Q valve is a hygienic valve designed to safely reduce pressure peaks in piping systems. It reliably protects plants, products, and components against excessive pressure, particularly downstream of positive displacement pumps.
Reliable reduction of pressure peaks in hygienic processes
VARIVENT® Overflow valves type Q are used to reduce pressure peaks within piping systems. They are mainly applied for overpressure protection downstream of positive displacement pumps, ensuring reliable protection of plant components and products.
Flexible pressure control for different process requirements
The VARIVENT® Overflow valves type Q is equipped with a manually adjustable actuator that allows precise regulation of the valve opening pressure. This makes the valve suitable for a wide range of hygienic applications in the food, beverage and process industries.
Actuator variants at a glance
GEA offers three spring-closing actuator variants to optimally meet different operating and cleaning requirements:
-
Type F – Mechanical adjustment
The Type F actuator allows the response pressure to be set via an adjustment screw. Ideal for: applications with stable and constant process conditions. -
Type M – Support during pipe cleaning (CIP)
The Type M actuator includes an additional integrated pneumatic function. This allows targeted lifting of the valve disc during CIP cleaning, supporting reliable and hygienic cleaning processes. -
D-Force actuator – For demanding pressure conditions
The D-Force actuator combines the mechanical Type F actuator with an additional air/air actuator. This enables the valve to be kept closed against pressures higher than the mechanically set opening pressure. Typical application: carbonated beverages, where pressure increases can lead to degassing and foaming inside the pipeline.
Typical applications
VARIVENT® Overflow valves type Q are used in a wide range of hygienic process applications, including:
- Overpressure protection for positive displacement pumps
- Bypass valve in case of pressure peaks
- Vent valve in piping systems
Materials & seals
For hygienic applications, static seals are available in the following materials:
- EPDM
- FKM
- HNBR
This allows optimal adaptation to different media and process conditions.
Benefits of VARIVENT® Overflow valves type Q
- Response pressures up to 20 bar
- Three actuator types for different applications
- Low investment and maintenance costs
- Proven VARIVENT® sealing geometry
- Reliable protection for plant and product
FAQ – Frequently Asked Questions about the VARIVENT® Type Q Relief Valve
An overflow valve is used to safely reduce pressure peaks in piping systems and to protect plants, components, and products from excessive pressure.
The valve is most commonly installed downstream of positive displacement pumps, where sudden pressure increases may occur.
The opening pressure is manually adjusted via the selected actuator, for example by using an adjustment screw on the Type F actuator.
Yes. When equipped with the Type M actuator, the valve disc can be pneumatically lifted during CIP cleaning to support effective hygienic cleaning.
The VARIVENT® Overflow valve type Q is designed for hygienic media in the food, beverage, and process industries, including carbonated products.
The D-Force actuator allows the valve to remain closed at higher operating pressures. This is particularly important for carbonated beverages to prevent degassing and foaming in the pipeline.
Downloads
相关产品
GEA Hilge NOVATWIN 和 GEA Hilge NOVATWIN+
只需使用一个泵即可进行泵送和清洁 - GEA Varipump 系列中的 GEA Hilge NOVATWIN 是一种灵活的双螺杆泵，符合最高卫生标准，可以实现轻柔的产品处理和 CIP。
GEA Hilge NOVALOBE
适用于粘性介质的革命性设计 - GEA Hilge NOVALOBE 系列专为粘性介质设计，也适用于需要温和泵送或配量的应用。
VARIVENT® 安全阀
VARIVENT® 安全阀是专门为食品、饮料和制药行业开发的，可满足所有的相关标准和法规，例如 DIN 11866 或 ASME BPE。
Control top T.VIS® Q-15
The T.VIS® Q-15 used to control and monitor overflow valves of the VARIVENT Q series can optionally be equipped with solenoid valves. The proximity switch is mounted in the valve lantern as standard.
