RV-01 Pressure relief valve-Pressure relief valve-ring blower, side channel blower, regenerative blower-Greentech International (Zhangqiu) Co., Ltd. / Greentech Industry (Jinan) Co., Ltd.

Product Overview
Product Parameter
Product Application
schematic diagram

The RV-01 pressure relief valve is an essential safety device engineered specifically for side channel blowers and high-pressure fluid systems. By providing rapid, automatic pressure regulation on both the inlet and outlet ports, this valve acts as a critical safeguard against equipment overload. Constructed with a high-grade, durable plastic external housing and an integrated internal steel mesh, this lightweight yet robust valve offers exceptional resistance against acid, moisture, and chemical corrosion, ensuring long-term reliability in specialized industrial settings.

Performance & Dynamic Regulation

Ultra-Fast Overpressure Response

When the system pressure or the internal pressure fluctuation amplitude exceeds the pre-set threshold of the blower, the valve initiates an immediate response. It opens fully within 0.2 seconds, instantly releasing excess pressure through the managed airflow to protect the blower from catastrophic overload.

Anti-Shock Smooth Closing

Once the system pressure drops back down to a calibrated safe value, the valve executes a controlled, slow closing mechanism. This specialized damping action ensures that the reseating process does not trigger a secondary pressure spike or fluid shockwave within the system.

System Adaptability & Configuration

Calibrated Scope of Application

The valve features a highly adaptable scope of application, engineered to operate precisely within a pressure range of 0 to 300 mbar. This wide regulation band makes it perfectly suited for low to medium-pressure industrial blower systems.

Dual-Purpose Pressure and Vacuum Use

Designed for maximum versatility, this valve is engineered for universal installation on ring blowers, making it equally suitable for both positive pressure and negative pressure (vacuum) applications.

Tool-Free Static Pressure Calibration

The static pressure setting of the valve is highly intuitive and easily adjustable within its working range. This allows operators to quickly calibrate the relief thresholds on-site to match the precise operational boundaries of individual machinery lines.

Global Thread Compatibility

To ensure seamless integration into international piping networks, the valve features a universal connection thread specification that is perfectly compatible with PT, PF, and NPT-1 1/4" standards.

Operational Precautions & Boundaries

Environmental & Media Isolation

To maintain accurate calibration and prevent seal degradation, the valve must be kept completely away from grease, heavy lubricants, or highly volatile oil gases.

Directional Installation Accuracy

Operators must strictly confirm the airflow direction prior to installation. The housing features an integrated directional arrow to guide correct orientation for either dedicated pressure or vacuum configurations.

Extended Thermal Boundaries

Built to withstand intense industrial cycles, the valve is rated for a durable continuous operational temperature range spanning from -10 ºC up to 120 ºC.

Maintenance Safety Protocol

The internal spring and seating mechanisms are calibrated under precise tension. To prevent loss of calibration or injury, the relief valve should never be disassembled without the supervision of a professional engineer.

Model	Scope of application	a	b	C	d	e	f	9
RV-01	0-300mbar	23	98	21	1-1/4"G	1-1/4"G	142	Ø
RV-02	300-600mbar	23	98	21	1-1/4"G	1-1/4"G	142	Ø

The pressure relief valve serves as a vital safety and regulation component across a multitude of low-to-medium pressure systems. Engineered to operate efficiently within a 0 to 300 mbar range, this dual-purpose valve provides instantaneous protection against overpressure and vacuum collapse, ensuring system integrity, stable fluid dynamics, and continuous equipment safety.

Blower System Integration & Flow Control

Dual-Purpose Ring Blower Safeguards

The valve is specifically optimized for direct installation on ring blowers, side channel blowers, and regenerative blowers. It delivers exceptional performance in both positive pressure blowing configurations and negative pressure vacuum setups, preventing industrial blowers from surging or overheating.

On-Site Static Pressure Customization

With its easily adjustable static pressure settings, the valve acts as an adaptable inline regulator. It allows operators to tune specific bypass thresholds directly on the factory floor, adapting easily to localized flow resistance and variable load conditions.

Global Piping and Thread Standardization

Featuring a highly adaptable connection base, the valve effortlessly integrates into international piping layouts. Its design guarantees a secure, leak-proof fit with PT, PF, and NPT-1 1/4" thread standards, reducing the need for custom adapters in global machinery builds.

Environmental & Process Engineering

Wastewater Treatment and Aeration Tanks

In municipal and industrial water treatment, blowers must maintain steady air injection into aeration basins. The relief valve protects these blowers from sudden backpressure if aeration nozzles become blocked, venting excess pressure safely to maintain continuous system operation.

Biogas and Low-Pressure Gas Handling

Within environmental bio-digestion or methane recovery systems operating at low pressures, maintaining a precise pressure ceiling is mandatory. The valve provides reliable, spark-free pressure venting within its 0 to 300 mbar range, protecting sensitive storage bladders and low-pressure distribution lines.

Industrial Automation & Material Handling

Pneumatic Conveying and Powder Transfer

Low-pressure pneumatic conveying systems rely on stable air velocities to move powders, pellets, or granules. If a pipe blockage occurs, the valve opens fully within a fraction of a second, preventing pipe bursts, material compaction, and system damage while allowing the blower to run safely.

Vacuum Lifting and Automated Pick-and-Place

In automated manufacturing lines using vacuum suction cups to lift sheet metal, glass, or packaging cartons, excessive vacuum levels can damage delicate materials or strain the pump. The valve safely regulates the upper vacuum limits, ensuring uniform holding forces and smooth robotic handling.

Industrial Drying and Air Knife Systems

For continuous automated drying lines utilizing high-velocity air knives, consistent air pressure is critical to achieving uniform moisture removal. The relief valve bleeds off minor pressure fluctuations, stabilizing the air stream delivering to the nozzles for optimal drying efficiency.

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