[Product Overview] The 4001-P7 combination solenoid valve is a multi-position, multi-way solenoid valve specifically designed for centralized control scenarios involving multiple corrosive fluid media. The product adopts a 7-in-1-out confluence control method, integrating seven independent input channels into one valve, allowing for the switching of any one medium into a common outlet as needed. Both the valve body and valve core are made of polytetrafluoroethylene (PTFE, commonly known as "plastic king") material, which exhibits excellent chemical corrosion resistance and can withstand almost all chemical media, including concentrated sulfuric acid and aqua regia.
The product is widely used in automatic control fields that require high multi-medium switching and corrosion resistance, such as environmental protection equipment (multi-agent dosing for sewage treatment, multi-channel sampling for water quality online monitoring, and water treatment automation system) and medical equipment (medical multi-channel analyzer, multi-reagent switching in biopharmaceuticals, and fluid control in medical devices). One valve replaces multiple valves, significantly simplifying pipeline design and saving installation space.
[Core Parameters] Parameter Item | Specification Product Model | 4001-P7 | Valve Body Material | PTFE | Valve Core Material | PTFE | Sealing Material | FKM | Control Mode | 7-in-1-out (seven inlets and one outlet, multi-channel confluence) | Number of Channels | 7 independent inputs, 1 common output | Applicable Medium | Strong acids, strong alkalis, organic solutions, chemical reagents, and other corrosive liquids or gases | Temperature | -100℃ ~ 180℃ (the material can work at 230~260℃ for a long time) | Working Pressure | 0 ~ 0.6MPa | Power Supply Voltage | DC12V~220V, AC24V~220V | Connection Mode | Internal Thread (G1/2, G1/4, G1/8, etc.) | Leakage | Zero leakage | Protection Performance | Waterproof, explosion-proof (can be selected according to working conditions) | [Core Advantages] 1. Full PTFE Material, Ultimate Corrosion Resistance | The valve body and valve core are all made of PTFE, which is inert to almost all commonly used chemicals and can resist strong corrosive media including concentrated sulfuric acid and aqua regia. It is particularly suitable for environments with severe corrosion, high temperatures, and where chemicals are not allowed to come into contact with lubricants.
2. 7-in-1 multi-channel integration, one valve replaces multiple valves. The product integrates 7 independent input channels, allowing for on-demand switching and confluence of multiple corrosive media through a single valve. Compared to the traditional parallel multi-valve solution, it significantly simplifies pipeline design, saves installation space, reduces system failure points, and enhances overall reliability.
3. Precise switching of independent channels, with flexible control over each channel independently. It can accurately switch any input medium to the common outlet based on the on/off state of the solenoid valve. It is suitable for complex automatic control scenarios that require switching different corrosive media in sequence or on demand, such as sequential dosing of multiple agents and multi-channel sampling switching.
4. Zero-leakage design, safe and reliable. The product features zero-leakage performance, effectively preventing the leakage of corrosive media and cross-channel media interference, ensuring equipment operation safety and personnel safety. It is particularly suitable for fields such as healthcare and environmental protection, where high requirements for safety and media purity are essential.
5. Anti-blocking and corrosion-resistant, with a long service life. The reset spring is positioned outside the fluid, making it less prone to blockage and resistant to acid and alkali corrosion. The dimensions of the pilot hole and pressure relief hole are significantly larger than those of traditional valves. The specially designed coil is less likely to burn out, significantly extending the product's service life.
6. Wide temperature range adaptability, stable performance within the temperature range of -100~180℃, and the material can operate at 230~260℃ for a long time. It can operate stably with both low-temperature chemical reagents and high-temperature corrosive fluids.
[Applicable Equipment and Fields] Environmental Protection Equipment: Multi-chemical Dosing System for Wastewater Treatment, Online Water Quality Monitoring Analyzer, Multi-channel Sampling for Environmental Atmospheric Analyzer, Industrial Wastewater Treatment Autocontrol System
Medical equipment: medical multi-channel analyzers, fully automatic biochemical analyzers, biopharmaceutical multi-reagent switching systems, fluid control for medical devices, and automation equipment for clinical laboratories
In the chemical industry: multi-media batching system for chemical reagent plants, chemical filling system, and multi-channel switching for chemical analysis instruments
Other fields: multi-tank switching in electroplating and coating, multi-medium mixing in food equipment, and multi-component feeding in pharmaceutical equipment
[Customized Services] Support non-standard customization, including but not limited to:
Different numbers of channels (2 inputs and 1 output, 3 inputs and 1 output, 4 inputs and 1 output, 5 inputs and 1 output, 7 inputs and 1 output, 8 inputs and 1 output, 12 inputs and 1 output, etc.)
Different diameters and specifications (DN1~DN25, etc.)
Different control methods (one-in-multiple-out, multiple-in-multiple-out matrix type, etc.)
Different connection methods (threaded, flanged, ferrule, etc.)
Different power supply voltages and protection levels
Special medium adaptation scheme
[Installation and Use Precautions] The solenoid valve should be installed in a drip-free environment to prevent the coil from being exposed to moisture for extended periods
It should be installed in a place with less vibration
The pipeline should be cleaned before installation
During installation, the arrow on the valve body must align with the flow direction of the medium
Before installation and use, check whether the power supply matches the label
When using multi-channel switching, it is necessary to ensure that non-working channels are in a fully closed state to prevent cross-flow of different media
Please do not disassemble or assemble without permission, as this may affect the sealing performance of the product

Professional manufacturing and professional services, KUNAG creates more value for you
Continuously improving the quality of services and keeping improving, "sincere service" is the eternal theme of KUNAG. Kunag strictly complies with the requirements of ISO9001-2000 quality system certification, strictly controls the quality and responsibilities to the people to ensure the healthy operation of production, sales and service. To strengthen communication with customers and to provide our customers with quality products and perfect service, we hereby make the following commitments:
Product Standards
Products are designed, manufactured, and inspected strictly in accordance with China\'s GB, HG standards, and US API standards. The hardness of the sealing surface meets the national requirements and the width exceeds the national standard.
pre-sale service
Product introduction, technical communication, non-standard product design, troubleshooting.
Sale service
Trustworthy contracts, guarantee timely delivery, and keep in touch with customers at any time.
For special or complex products, our factory arranges technicians to train and guide users on product use, troubleshooting, tuning and maintenance.
After sales service
The warranty period of Weitong products is 12 months from the factory, and the "three guarantees" service (return, replacement, repair) is implemented.
During the use of our products, our factory regularly organizes technical and inspection personnel to visit and solicit user feedback on product quality, use conditions, and improvement opinions in order to further improve product quality.
Quickly respond to customer complaints about product quality problems, and after-sales service personnel rushed to the scene within 24-36 hours (48 hours outside the province).
For after-sales service, users are required to fill in the quality feedback form after the service and make appraisal opinions, while improving Guardian\'s service quality.

Order process
Landline: 021-59718851 (AM-8: 30 to PM-17: 30)
Mobile phone: 18918462396 (WeChat same number 24-hour service)

QQ: 2030185432

Email: kunage@126.com
Receive customer purchase list, provide customers with valve model selection and quotation (price list).
Specific agreement: delivery time, special requirements, etc.
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Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.

Contact: Peng gong
Q Q: 2030185432
Mobile: 18918462396(WeChat same number - 24 hours service)
Landline: 021-59718851
E-mail :kunage@126.com