Yaxing OS&Y Gate Valve for Fire & Water Works, Resilient Seated, DN50–DN600

Technical Specifications of Yaxing OS&Y Gate Valve

Key Features of Yaxing OS&Y Gate Valve

  ● Clear visual position — rising stem (OS&Y) design: The Yaxing OS&Y Gate Valve uses a rising stem gate valve mechanism (Outside Screw & Yoke) for instant open/close verification, ideal for fire protection systems and waterworks isolation.

  ● Resilient seated wedge for bubble-tight shut-off: A fully encapsulated EPDM wedge gate valve design delivers tight sealing and low operating torque, making it a dependable resilient seated gate valve for potable water and fire mains.

  ● Ductile iron body with corrosion-resistant internals: Robust ductile iron OS&Y valve body and bonnet with stainless-steel/bronze stem extend service life in municipal water, industrial water, and HVAC applications.

  ● Fusion-bonded epoxy (FBE) coating inside & out: Factory-applied FBE coated gate valve finish enhances corrosion resistance and hygiene compliance for waterworks gate valve installations.

  ● Standards-ready for global projects: Built as an AWWA C509/C515 compliant valve and EN 1074-2 gate valve, with ANSI B16.10 face-to-face and EN 1092-2 / ASME B16.1 flanged options.

  ● Flexible pressure classes and sizes: Available as a PN16 gate valve or Class 150 gate valve, covering DN50–DN600 (2"–24") for new builds and retrofits.

  ● Fire main integration & monitoring: A flanged OS&Y gate valve with optional supervisory switch and post indicator support for fire main isolation valve duties and remote position monitoring.

  ● Connection options for faster installs: Choose flanged, grooved, or flanged-grooved OS&Y gate valve ends to streamline tie-ins with grooved piping systems and existing flanged networks.

  ● Low maintenance, service-friendly layout: Top-entry access, replaceable O-rings, and gear-operated options simplify upkeep of the Yaxing OS&Y Gate Valve over its lifecycle.

Applications of Yaxing OS&Y Gate Valve

  ● Fire Protection Systems: The Yaxing OS&Y Gate Valve is ideal for fire main isolation and sprinkler system control, providing visual position indication and optional supervisory switch connection for alarm integration.

  ● Municipal & Waterworks Systems: Suitable for potable water and non-corrosive media in distribution and isolation applications.

  ● Industrial Water & HVAC Systems: Ensures reliable shut-off with low pressure loss and easy operation in chilled or process water loops.

  ● Grooved & Flanged Compatibility: The flanged-grooved OS&Y gate valve option enables flexible connection with grooved piping systems, simplifying retrofit or expansion.

Part & Materials

No	Part	Material
1	Body	Ductile Iron GGG50
2	Wedge	Ductile Iron GGG50+EPDM
3	Wedge Nut	Brass
4	Stem	SS420
5	Bolts	CS Gr 8.8
6	Gasket	EPDM
7	Bonnet	Ductile Iron GGG50
8	O Ring	EPDM
9	Gland	Ductile Iron GGG50
10	Yoke	Ductile Iron GGG50
11	Stem Nut	Brass
12	Handwheel	Ductile Iron GGG50
13	Lock nut	Carbon Steel
14	Pin	Carbon Steel
15	Nuts	Carbon Steel
16	Bolts	Carbon Steel

Dimensions(mm)

Technical Data