Ductile Iron Underground Non-Rising Stem Gate Valve

Description

The Ductile Iron Underground Non-Rising Stem Gate Valve is a non-rising stem (NRS) resilient-seated gate valve built for buried service. The stem rotates without rising, so the valve has a low installed height and can be operated from street level with a T-key through a surface box. A ductile iron body and fully encapsulated wedge give strength and drop-tight sealing in municipal water mains.

Technical Specifications:

• Pressure Class: PN10 / PN16
• Size Range: DN50 – DN600
• Applicable Medium: Potable water, raw water, sewage
• Operating Temperature: -10°C to 70°C

Main Parts and Materials:

Key Product Features:

1. Buried-Service Design: Square operating cap for T-key operation through a valve box, no chamber needed.
2. Non-Rising Stem: Compact height, ideal for limited cover depth.
3. Bubble-Tight Seal: EPDM-encapsulated wedge closes on a smooth bore with zero leakage.
4. High-Strength Body: Ductile iron withstands soil loads and water hammer better than grey iron.
5. Long-Life Coating: Fusion-bonded epoxy protects against soil and water corrosion.

Applications:

Ideal for Municipal Water Mains, Residential Distribution Networks, Fire Hydrant Branches, and Irrigation Lines. Specifically suited for directly buried installations operated from ground level.

Additional information