The flange bright rod gate valve adopts an external screw structure, which rotates the screw and performs axial movement. The valve disc moves up and down with the screw rod to achieve opening and closing, and can directly observe the opening of the valve. It is widely used in water supply, fire protection, air conditioning, water treatment, municipal administration, shipbuilding, electricity, construction, food and other pipeline operations as a control fluid effect.
Product Features 1. The fluid resistance is small, and the sealing surface is small by the friction and erosion of the medium.
2. Opening and closing is more labor-saving.
3. The medium flow direction is not restricted, does not spoil or reduce the pressure.
4. The shape is simple, the structure length is short, the manufacturing process is good, and the application range is wide.
Technical Specifications Product Components Materials
| Serial number | Main part | Material | ||||
| 1 | Valve body | QT450 | ||||
| 2 | Gate | Qt450,nitrile rubber | ||||
| 3 | Stem | 304,2cr13,copper | ||||
| 4 | Valve cover | QT450 | ||||
| 5 | Sealing ring | Nitrile rubber | ||||
| 6 | Stem nut | Qt450,copper | ||||
| 7 | Hand wheel | QT450 | ||||
| 8 | Bracket | QT450 | ||||
| 9 | T-nut | Qt450,copper | ||||
| 10 | Pressure cover | QT450 | ||||
| 10 | Fasteners | Standard parts | ||||
Product Dimensions
| Specifications(dn) | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||||
| Medium | Valve length (mm) | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | |||
| Valve fully closed height (mm) | 320 | 350 | 390 | 430 | 600 | 620 | 770 | 980 | 1110 | ||||
| Valve full opening height (mm) | 400 | 430 | 500 | 550 | 700 | 800 | 1000 | 1180 | 1390 | ||||
| Heavy duty | Valve length(mm) | 178 | 190 | 203 | 229 | 254 | 267 | 292 | 330 | 356 | |||
| Valve fully closed height (mm) | 355 | 390 | 450 | 490 | 630 | 655 | 815 | 1000 | 1155 | ||||
| Valve full opening height (mm) | 430 | 490 | 550 | 600 | 750 | 830 | 1050 | 1270 | 1500 | ||||
| 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.
Related Products