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Engineered for water works, this AWWA C509 valve provides robust performance with rising stem and EPDM sealing.
The AWWA C509 rising stem gate valve is manufactured to the American Water Works Association standard, featuring an OS&Y structure. Constructed from QT500-7 or GGG50 ductile iron, the valve ensures long-term durability. The full EPDM wrapped wedge provides drop-tight closure, suitable for potable water and general water works. Sizes range from DN50 to DN800, with pressure ratings PN10 and PN16. Ideal for municipal water supply, treatment facilities, and similar applications.
| Parameter | Value |
|---|---|
| Design Standard | AWWA C509 |
| Structure | OS&Y / Rising Stem |
| Sealing | Full Wrapped EPDM Rubber |
| Material | QT500-7 / GGG50 Ductile Iron |
| Pressure Rating | PN10 / PN16 |
| Size Range | DN50 - DN800 |
We offer various sizes and configurations, including flanged ends, different pressure classes, and optional extended stems for buried applications.
Municipal water supply, water treatment, and industrial water systems. Suitable for global water works projects.
Custom sizes, coatings, and actuator options are available. Fusion bonded epoxy (FBE) coating can be applied for buried service as per project requirements.
Iraq Alqoash Water Project: 571 units were supplied to a project contractor for the Alqoash water project. The systematic piping products enhanced procurement efficiency, and the valves performed stably over 2 years.
Yes, flanged ends are a common option.
The EPDM sealing is suitable for potable water, but please verify with local regulations.
Available in PN10 and PN16.
We have provided on-site guidance for some projects; please inquire.
MOQ not specified; contact us for details.
Sample requests can be discussed.
Depends on order; contact our sales team.
EPDM sealing reduces maintenance, but regular inspection is recommended.
Contact us for quotes and technical support: email contact@weizidom.com, phone/WhatsApp +86 17319732766.




