Manual Non-Rising Stem Wedge Gate Valve
This series of Manual Non-Rising Stem Wedge Gate Valves is specifically designed for the full open or full close (shut-off) duty in large-diameter piping systems such as water treatment, municipal water supply, and drainage. It features the classic Non-Rising Stem (NRS) design to conserve installation space, while the Cast Iron body paired with a Hard Seal ensures reliability and long-term durability in normal temperature and normal pressure water media environments.
📋 Core Technical Parameters
| Parameter | Specification Range | Detailed Description |
| Nominal Size (DN) | DN50 – DN1200 | Suitable for medium to large bore pipelines, up to DN1200(48”). |
| Nominal Diameter | 150cm | Large diameters, such as DN1500 (150cm), are available for custom order. |
| Connection Type | Flange | Uses standard flanged connection for strength and sealing reliability. |
| Actuation | Manual | Standard operation via handwheel (implied); simple structure and easy maintenance. |
| Body Material | Cast Iron | Durable and cost-effective material for general water applications. |
| Applicable Medium | Water | Primarily designed for water conveyance and treatment systems. |
| Sealing Type | Hard Seal Type | Uses metal-to-metal or hard material seating for reliable, tight isolation with zero-leakage potential. |
| Pressure Environment | Normal Pressure (Atmospheric) | Suitable for low to normal operating pressures. |
| Working Temperature | Normal Temperature (Ambient) | Suitable for fluids at ambient or cool temperatures. |
| Standard | National Standard (China) | Manufactured and tested according to Chinese industry standards. |
🌟 Product Advantages and Features
1. Space-Saving Design: Non-Rising Stem (NRS) Structure
- Optimized Vertical Space: The Non-Rising Stem design means the stem threads within the valve body and does not extend vertically when opened. This significantly saves vertical installation and operation space, making it ideal for confined or buried applications.
2. Excellent Isolation Performance: Hard Seal & Single Wedge
- Reliable Shut-off: The wedge-type single-gate structure, combined with a hard seal, provides superior cut-off capability for reliable pipeline isolation.
- Low Flow Resistance: When fully open, the flow path is straight-through, resulting in minimal flow resistance and negligible media loss.
3. Sturdy and Durable: Cast Iron Body Material
- Structural Stability: The valve body is made of Cast Iron, which offers good casting properties and mechanical strength to handle pipeline stresses.
- Long Service Life: Robust construction designed for long-term use in normal temperature and normal pressure water media.
4. Ease of Installation and Maintenance
- Flanged Connection: The flanged end connection is standard, proven, and facilitates easy installation, disassembly, and maintenance of the pipeline.
🏭 Application Fields
Due to its reliable shut-off capability and suitability for large-diameter water systems, this gate valve is widely used in the following sectors:
- Water Supply & Drainage: Isolation for primary main lines in urban water treatment plants and supply networks.
- Municipal Engineering: Use in urban underground pipe network construction and infrastructure upgrades.
- Water Conservancy Projects: Flow control in reservoirs, canals, and pumping stations.
- General Industry: Conveyance pipelines for water media at ambient temperature and pressure.
🛒 Ordering Information and Service
- Customization: Custom Processing is Supported, allowing adjustments for specific dimensions (e.g., 1500), material requirements, and connection standards.
- Packaging: Standard packaging is a Wooden Crate, ensuring safe transport of the product.
- Origin: Wenzhou, China.
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