20 long years of manufacturing excellence with quality at it's best!
WE ARE SPECIALIZED
Who we are
Shanghai DaTian Valve Pipe Engineering Co.,Ltd. is a high-tech enterprise specialized in producing various industrial valves. DATIAN strive on providing a full package of industrial valve solution to the client, focus on industrial valve manufacture, development, sales, and services. With nearly twenty years of hard work, DATIAN created an individual, characterized valve market. Products are widely applied in oil gas, chemical, electric power, shipping, mining, water treatment, industrial system, etc.
What we advantage
DATIAN Valve aims to reduce the cost and create more values for clients through offering competitive products and excellent service. Also, the automatic recirculation control valve is our key product on purpose of pump minimum flow protection. Product design and manufacture standards include: GB, ANSI, API, JIS, DIN and BS etc. Nominal diameters: DN 6mm to 3000mm. Pressure range: 0.6Mpa to 42.0Mpa. Materials: carbon steel, stainless steel, alloy steel and special materials.
Centrifugal Pump Protection Scenarios Using ARC Valve (ARV)
Three protection ways for pump
Continuous circulating system
Minimum requirement of continuous circulating system pump is unrelated to the discharge of Process flow changes system. After setting of minimum flow, through orifice plate directly backflow to a storage tank. Although continuous minimum flow circulation can protect the pump very good, the pump must provide greater power output to ensure system process flow plus recycle flow, which causing additional energy waste.
Control circulating system
Control circulatory system is assembly by the check valve, flow gauge, minimum flow control valve, control circulation system, control circulation system can provide minimum flow protection, when process flow is greater than the minimum flow of the pump, loop closed, no extra energy loss. But the system is complex, control components, purchase, installation, maintenance cost is higher.
Automatic recirculation control valve
Automatic recirculation valve set check valve, flow perception, bypass control valve, multi-stage step-down in one, do not need power, control system and wiring, essential safety. Taking up small space, reducing the possibility of high-speed fluid to malfunction to a minimum, with lower installation and maintenance cost, It is the priority pump protection way of the modern industrial process.
The Main Advantages Of ZD Series Automatic Recirculation Control Valve
ZD series Automatic recirculation control valve
ZD series ARC valve is suitable for bypass with high-pressure differential, a maximum pressure differential is 30MPa, and the specific choice is determined by the factory. Multistage decompression type M type bypass can eliminate noise made by high-speed flow medium, prevent damage of cavitation erosion, and braising to valve components.
ZDT Model ARC valve
- Simple structure, low cost, long life, suitable for Low-pressure Working conditions.
- Cast valve body, material: carbon steel or stainless steel, etc.
- The big flow of bypass, maximum flow is 60% of the main flow, KV value can be adjusted.
- Bypass maximum operating pressure differential up to 4 MPa.
- Pressure CL150# - 400#, size1’’ - 16’’.
ZDL Model ARC valve
- Multi-orifice cage bypass, low noise, suitable for middle and low-pressure conditions.
- Forged steel body, material: carbon steel or Stainless steel, etc.
- Non-return valve function is standard, Maximum pressure differential up to 6 MPa.
- With venturi port main flow check valve structure, be applicable for complicated working conditions.
- Pressure CL150# - 600#, size1’’ - 20’’.
- Manual bypass operation is optional.
ZDM Model ARC valve
- Multistage decompression to preventing cavitation, reducing velocity, suitable for high-pressure conditions.
- Forged steel body, material: carbon steel or Stainless steel, etc.
- Non-return valve function is standard, Maximum pressure differential up to 30 MPa.
- Pressure CL150# - 2500#, size1’’ - 20’’.
- Manual bypass operation is optional.
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