The valve is composed of the main valve and the external guide valve. It uses the float in the water to connect the guide valve due to changes in the fluid surface, so that the main valve can supply water and close, thereby controlling the water slot of the pool and water tower within a certain range to prevent overflow and water slot from being too low. the valve is suitable for automatic water supply systems of various sinks and water towers in industrial and mining enterprises and civil buildings. it is also used for constant pressure boiler circulating water supply systems. The main valve opens and closes slowly without producing a water hammer. The seal is tight and there is no flooding.
Product Features When the water slot reaches the set height, the main valve is controlled by the float guide valve and closes the water inlet to stop the water supply; when the water slot decreases, the main valve is controlled by the float switch to open the water inlet to fill the pool with water to achieve automatic hydration. The liquid slot has precise control and is not interfered by water pressure: the 100x diaphragm type remote control float valve can be installed in any slot position with the height of the pool and the use space. it is convenient for maintenance, debugging, inspection, reliable sealing and long service life. Diaphragm type valves have reliable performance. High strength and flexible movement are suitable for pipes with a diameter of less than 450mm.
Technical Specifications Product Components Materials
| Serial number | Main part | Material | |||||
| 1 | Valve body | QT450 | |||||
| 2 | Sealing ring | Nitrile rubber | |||||
| 3 | Main valve petals | Qt450,copper | |||||
| 4 | Diaphragm pressure plate | Qt450,copper | |||||
| 5 | Valve cover | QT450 | |||||
| 6 | Spring | Stainless steel | |||||
| 7 | Guide valve,needle type valve | Brass | |||||
| 8 | Fasteners | Standard parts | |||||
Product Dimensions
| Specifications(dn) | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |||
| Valve length(mm) | 203 | 203 | 216 | 241 | 292 | 300 | 356 | 457 | 533 | 610 | |||
| Test pressure (mpa) | Shell | 1.5-2.4 | |||||||||||
| Sealed | 1.1-1.76 | ||||||||||||
| Nominal pressure(mpa) | 1.0-1.6 | ||||||||||||
| Applicable temperature | 0-80℃ | ||||||||||||
| Applicable medium | Water and weakly corrosive fluids | ||||||||||||
FAQ As a global supply chain service provider with operations in over 30 countries and regions, our comprehensive product range—encompassing pipes, fittings, valves, and fire-fighting equipment—has obtained ISO international quality certification and complies with multiple regional standards, including CE, UL, and SASO. These products have been successfully implemented in various international scenarios, such as infrastructure projects in Southeast Asia, commercial complexes in the Middle East, and fire renovation projects in Eastern Europe. For both regular procurement and cross-border customization, we offer an integrated solution that spans product selection, customs clearance, and logistics management.
Absolutely. For overseas customization requests, our engineering team collaborates directly with international blueprints and technical specifications to provide multi-standard compatible designs, including wall thickness conversion and pressure grade adaptation. Additionally, we provide:
- Third-party testing reports for pre-production samples
- Packaging labels compliant with the destination country's regulations
- Bilingual technical documentation and compliance certificates to ensure smooth local acceptance
We enforce a global quality control system that surpasses national standards. Each batch undergoes rigorous testing, including raw material composition analysis, pressure burst tests, and salt spray corrosion resistance evaluations, accompanied by bilingual (Chinese-English) quality inspection reports. Based on project location requirements, we can furnish free certification documents for target markets, such as CE (European Union), UL (United States), and BIS (India). Furthermore, we support on-site inspections and remote video audits to ensure full transparency in the quality control process.
The standard delivery cycle for overseas orders ranges from 25 to 45 working days. We offer diverse shipping options, including full container loads, less-than-container loads, and air freight express services. Our international logistics network covers major ports and airports worldwide. To facilitate swift customs clearance, we provide essential international certification documents, such as certificates of origin and commercial invoices. Leveraging our bonded warehouses in Hong Kong and Shenzhen, select Southeast Asian orders can be expedited with delivery within 7 to 10 days.
We deliver cross-border after-sales support through a 7x12-hour customer service model (email/WhatsApp/phone) with a guaranteed response time of two hours and a resolution proposal within 24 hours. For warranty-related quality issues, we cover basic shipping costs from Chinese ports or airports to the destination port. Additionally, we provide remote technical guidance, bilingual materials, and coordinate online support with engineers when necessary.
Absolutely. As a one-stop supplier, we specialize in customizing products to match your unique project needs:
Customizable parameters: Pipe diameter (DN15-DN2000), valve pressure rating (PN10-PN400), material (304/316 stainless steel, carbon steel, galvanized steel);
Fire system customization: We collaborate with your engineers to design integrated systems (e.g., high-rise building fire pipelines + matching valves + sprinklers) and provide 2D/3D drawings for confirmation before production.
Sample production is available for testing prior to mass orders.
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