Product Description:
List of Valve Positioners and Accessories of Chinese Control Valve Manufacturers
The Chinese control valve manufacturers have a wide range of valve positioners and accessories in their stock. Some of the popular products are:
Fisher
- DVC6200
- DVC2000
- 3582I
- 3620J
- 3720
- 3661 valve positioners
- 2625
- VBL pneumatic amplifiers
- 4211 and 4210 position transmitters
- 67CFR, 67CFSR filter pressure reducing valves
- DLC3100, DLC3010 float level gauges
Masoneilan
- SVI3-21111112 single acting without feedback
- SVI3-21111212 single acting with feedback
- SVI3-21121212 single acting with display and feedback
- SVI1000/G/IM/PR single acting waiting for feedback with magnetic pole
- SVI2-21123111 single acting without feedback
- SVI2-22123121 double acting with feedback and display
- SVI2-21123121 single acting with feedback and display valve positioner
- BR200, BR400 pneumatic amplifier
- 78-40 filter pressure reducing valve
Samson
- 3730-31001
- 3730-31000
- 3725
- 4763 valve positioner
Flowserve
- 520MD, 3200MD-28-D6-E-04-40-0G-00 double acting/single acting without feedback
- 3200MD-28-D6-E-04-40-0G-0F double acting/single acting with feedback
- 3800MD valve positioner
AZBIL
- AVP100,AVP102,AVP200,AVP201,AVP202,AVP300,AVP301,AVP302,AVP307 valve positioner
Neles
- ND7000, ND9103HX8T, ND9106HX8T, ND9203HE8T, ND9206HE8T valve positioner
ABB
- V18345-1010121001, V18345-1010221001, V18345-1010521001, EDP300 valve positioner
Siemens
ROTORK YTC
Foxboro
- SRD991, SRD998, SRD960 valve positioner
ASCO, Norgen, Burkert
- Solenoid valves
- Conventional models in stock
Features:
Features of Valve Positioners
Valve positioners are an essential component in the automation of control systems that utilize pneumatic control valves. The following are the main features of valve positioners:
- High-precision adjustment: Intelligent valve positioners are equipped with microprocessing technology that ensures a perfect balance between signal and feedback even in critical processes. This feature enables high-precision adjustment that conforms to the required standards.
- Fast Response: Intelligent positioners have fast response characteristics and can perform actions quickly. This feature is beneficial in processes that require immediate adjustments.
- Automatic Setting: Intelligent positioners have an automated setting function that significantly simplifies the debugging process. This feature saves time and increases work efficiency.
- High Sensitivity: Pneumatic valve positioners are sensitive to changes in working conditions and can adjust and work stably in time. This feature ensures that the valve maintains optimal performance even when changes occur in the system.
- Simple Structure: The structure of pneumatic valve positioners is relatively simple and easy to maintain and repair. This feature reduces downtime and provides convenience to the maintenance staff.
- Strong Adaptability: Pneumatic valve positioners have low requirements for pneumatic control valves and can operate within various pressure ranges. This feature is essential in systems that require frequent alterations in pressure.
- Split-range Control: Pneumatic valve positioners have split-range control capabilities, enabling one control signal to control several positioners. This feature adds flexibility to the system, enabling simultaneous adjustments to multiple valves.
Working principle of valve positioner: Valve positioners control valve actuation by converting an electrical signal into a pneumatic output. The core mechanism consists of the nozzle flapper and film chamber, which adjust valve position by sensing varying pressure variations, resulting in precise control of valves.
Technical Parameters:
| Technical Parameter | Value |
|---|
| Degree of Protection | IP 66/NEMA 4X |
| Minimum Current | 3.6 MA For Display
3.8 MA For Operation |
| Deviation | ≤1% |
| Feature | Neles Control Valve Neles Positioner |
| Direction of Action | Reversible |
| Signal Range | 4 To 20 MA |
| Static Destruction Limit | 100 MA |
| Sensitivity | ≤0.1% |
| Power | Pneumatic |
| Hysteresis | ≤0.3% |
Applications:
Petrochemical Industry
Valve positioners are essential control devices used in the petrochemical industry to manage factors like flow and pressure. In the production of liquefied gas and ethylene, these positioners play a significant role in meeting the needs of different production stages.
Sewage Treatment Industry
Valve positioners are also utilized in the sewage treatment industry to regulate the flow of sewage and clean water, ensuring that equipment functions correctly while preserving water quality.
Thermal Power Generation and Nuclear Power Industry
Valve positioners play a crucial role in thermal power generation and nuclear power industries by controlling fluid pipelines, improving equipment's safety and reliability and ensuring the stable operation of power stations.
Tap Water Industry
In the tap water industry, valve positioners are used to monitor water pipes and valves, adjust water levels, and control water pressure while providing real-time monitoring through external signals.
Metallurgical Industry
Intelligent valve positioners are used to control the valves in smelting and heat treatment furnaces accurately, ensuring the smelting process's safety and efficiency.
Pharmaceutical Industry
In the pharmaceutical industry, valve positioners play an essential role in adjusting the flow and direction of liquid medicines and solvents, providing precise guarantees for drug production.
Environmental Protection Field
Intelligent valve positioners strictly control valves in wastewater and waste gas treatment equipment in the environmental protection field, helping the normal operation of environmental protection facilities and the compliance with emission standards.
Support and Services:
Our Pneumatic Control Valves are designed to provide reliable and accurate control of air flow and pressure in a variety of applications. We offer a range of sizes and configurations to meet your specific needs.
Our technical support team is available to assist with any questions or issues you may have with your Pneumatic Control Valves. We offer troubleshooting guidance, repair services, and replacement parts to ensure that your valves are operating at peak performance.
In addition to our technical support services, we also offer training and educational resources to help you get the most out of your Pneumatic Control Valves. Our team of experts can provide on-site training and demonstrations, as well as online resources and documentation.
Trust our team to provide the highest level of support and service for your Pneumatic Control Valves.
Packing and Shipping:
Product Packaging:
- Each valve is packaged in a protective foam cover.
- The valves are then placed in individual boxes.
- The boxes are labeled with the product name and specifications.
Shipping:
- Valves are shipped via standard ground shipping.
- The valves are secured in their boxes with packing materials to prevent damage during transit.
- Customers will receive a tracking number once their order has been shipped.
