DIN 3352 F4 Underground Cap Gate Valve
Product Summary: This underground cap gate valve meets DIN 3352 F4 standard, designed for buried service in water supply and wastewater systems. It features a non-rising stem and cap structure, full EPDM rubber encapsulation for sealing, and a ductile iron body (GGG50/QT500-7) for strength and corrosion resistance. Sizes from DN50 to DN600, pressure ratings PN10/PN16.
Key Selling Points
- DIN Standard Compliance: Meets DIN 3352 F4, ensuring compatibility with German-standard pipelines.
- Robust Construction: Ductile iron body and bonnet provide high mechanical strength and resistance to ground load.
- Effective Sealing: Full wrapped EPDM wedge ensures bubble-tight shut-off, preventing leakage in wastewater and potable water.
- Underground Cap Protection: The cap protects the stem from dirt and damage, allowing easy operation via handwheel or extended spindle.
- Versatile Applications: Suitable for clean water, drinking water, rain water, and sewage systems.
- Low Maintenance: Non-rising stem design reduces moving parts, simplifying maintenance.
Technical Specifications
| Parameter | Value |
|---|
| Size Range | DN50-DN600 |
| Pressure Rating | PN10/PN16 |
| Design Standard | DIN 3352 F4 |
| Structure | NRS / Underground Cap |
| Sealing | Full wrapped EPDM rubber |
| Body Material | GGG50 / QT500-7 ductile iron |
Models and Options
Available in DIN 3352 F4 and F5 configurations, with flanged ends. Also available as BS5163 Type A/B and Z45X-16Q cap type. Options for electric or pneumatic actuators.
Materials and Structure
The valve body is cast in ductile iron GGG50 or QT500-7, offering high strength and corrosion resistance. The wedge is fully encapsulated with EPDM rubber, providing excellent sealing properties. The stem is made of corrosion-resistant stainless steel (typically 2Cr13). The cap is made of cast iron with a rubber-sealed opening for handwheel access.
Applications
Designed for municipal underground water supply, roadside drainage, residential water systems, and wastewater treatment plants. Suitable for clean water, drinking water, rainwater, and fire water. Also used in industrial wastewater discharge systems.
Customization
Custom sizes, materials, coatings (e.g., FBE), and operation modes are available. Extended spindles can be provided for deep burial installations.
Case Study
In Zimbabwe, a wholesaler has been purchasing this type of valve for 3 years, ordering over 200 units annually. They report 100% positive reviews and have become a major distributor in the local market.
FAQ
What is the difference between F4 and F5?
F4 has a flat face flange, while F5 has a raised face flange. Both follow DIN 3352.
Can the valve be used for wastewater?
Yes, the EPDM seal is resistant to mild corrosion and small particles, making it suitable for wastewater applications.
Is the valve WRAS approved?
Yes, the EPDM material and coating are suitable for potable water contact.
Can the valve be operated underground?
Yes, with an extended spindle or a handwheel above ground, the valve can be operated from ground level.
What coatings are available?
Fusion bonded epoxy (FBE) coating ≥250μm is standard for buried service.
Do you provide technical support for installation?
Yes, we offer on-site installation guidance and after-sales support.
What is the delivery time?
Delivery time is subject to order quantity and specifications; contact us for details.
Inquiry Information
Contact: Anna
Email: contact@weizidom.com
Tel: +86 17319732766
Address: No.999, Zhengxin Expressway, Zhengzhou City, Henan Province, China
Image Filename and Alt Suggestions
- File: din3352-f4-underground-cap-valve-warehouse.png
- Alt: DIN 3352 F4 underground gate valve with cap, ductile iron body
- File: din3352-f4-valve-wedge.png
- Alt: EPDM fully encapsulated wedge of DIN 3352 gate valve
- File: din3352-f4-valve-dimensions.png
- Alt: Dimension diagram of DIN 3352 F4 underground cap gate valve
