Automatic Recirculation Control Valves

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Efficient and Reliable Protection for Centrifugal Pumps

Low-Maintenance ARC Valve Solutions

Self-Containe, Automatic Recirculation Control (ARC) valves designed to protect centrifugal pumps against thermal damage and destruction, with a stable design and precise control of recirculation.

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WHAT IS A

ARV?

Features

Precise recirculation control.
Stable design.
Integral check valve.
Low maintenance.
Self-operating.
Ease of installation.
Suitable for all fluids.
Dampening of pulsations.
Multistage pressure letdown.
Cavitation prevention.
Eliminate external power sources or signals.
Reliable performance

Specifications

Valve Size:

ZDT: CL150# - 400#, SIZE1’’ - 16’’ / ZDL: CL150# - 600#, SIZE1’’ - 20’’ / ZDM: CL150# - 2500#, SIZE1’’ - 20’’

Application:

Pumps, Pumping, Pump Bypass, Pump Management

Product Type:

Control Valve, Pressure Operated Valves

Typical Pumps Protection

Continuous Recirculation System

Minimum flow requirement for continuous circulating system pump is unrelated to process flow discharge changes. Continuous minimum flow circulation protects pump well, but requires greater power output and causes additional energy waste.

Controlled Recirculation System

Control circulatory system is assembled by a Check Valve, flow gauge, and Minimum Flow Control Valve. The system provides minimum flow protection when process flow is greater than the minimum flow of the pump. The loop is closed with no extra energy loss. However, the system is complex and has higher costs for control components, purchase, installation, and maintenance.

Automatic Recirculation Control System

ARC valves ensures that a pre-determined minimum flow is maintained through the pump at all times, even when the flow rate drops below a certain value. The valve is compact and does not require electrical power, making it an essential safety feature for modern industrial processes.

ARC BROCHURE

Datian's ARC Solutions

ZDT Model

ZDT Series ARC Valve is a pump protection device that ensures minimum flow through centrifugal pumps, even when the main flow is zero. The valve has a maximum pressure differential of 4MPa and is suitable for bypass with big flow. The specific choice is determined by the factory.

DATASHEET (SP)

DATASHEET (EN)

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ZDL Model

The ZDL Series ARC Valve is a pump protection device that ensures minimum flow through centrifugal pumps, even when the main flow is zero. The valve has a maximum pressure differential of 6MPa and is suitable for bypass with medium or low pressure differential. The valve has a unique L bypass that eliminates noise by making high-speed flow medium and prevents cavitation.

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ZDM Model

The ZDM Series ARC Valve is a pump protection device that ensures minimum flow through centrifugal pumps, even when the main flow is zero. The valve has a maximum pressure differential of 30MPa and is suitable for bypass with high pressure differential. The valve has a multistage decompression type M type bypass that eliminates noise made by high-speed flow medium and prevents damage of cavitation erosion and braising to valve components

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Video

Keep Your Pumps Running Smoothly With Datian’s ARC Valves.

How Datian's ARC Valves Protects Your Centrifugal Pumps

YBT Back Pressure Valve

The Back Pressure Valve is a special pressure control valve that is commonly matched with the Automatic Recirculation Valve to protect the pump system. It controls upstream pressure, enabling the system to achieve the factory technological setting pressure value and system required pressure value, preventing vaporization and cavitation phenomena.

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ZHD Minimum Flow Control Valve

The ZHD Series Control Valve is stable and effective in preventing liquid cavitation. It uses multilevel cage symmetric sleeve control valve to control medium velocity and reduce noise from high pressure gas or steam

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