Description
Ductile Iron Resilient Seat OS&Y Gate Valve Description
Our ductile iron OS&Y gate valves provide superior flow control, durability and reduced operating torque. The compact, non-rising stem design with bolted bonnet requires less overhead space than traditional gate valves. Sizes range from 4-24 inches in classes up to 350 psi.
The gate and resilient wedge are fully encapsulated in rubber, providing a tight seal when closed. The vulcanized SBR wedge is mechanically retained with a 304 stainless steel retainer, preventing damage or dislodgement. This produces bubble-tight shutoff while also enabling low-friction operation.
Constructed from heavy-duty ductile iron, these rugged valves resist corrosion, erosion and abrasion. The fusion-bonded epoxy coating exceeds the corrosion protection requirements of AWWA C550. The OS&Y body is tested at up to 500 psi to ensure strength and pressure-retaining integrity.
Flanged end connections per ASME B16.1 provide easy installation into new or existing pipelines. Visual position indicators confirm valve status at a glance. The O-ring stuffing box requires minimal maintenance while preventing leakage.
Our OS&Y gate valves meet or exceed applicable AWWA, ASTM, ANSI and other industry standards. We thoroughly test each valve at our ISO 9001 certified factory to guarantee optimal performance. With proper installation and care, decades of smooth, reliable service can be expected.
When durability, low torque and minimal maintenance are required, specify our ductile iron resilient seat OS&Y gate valves. We offer a 2-year limited warranty and stand ready with exceptional customer service and technical support. Contact us today to learn more or request a quote.
Size: 1½” – 48″ (DN40 – DN1200)
Standard: DIN / BS / ANSI / Korean
Structure: Gate
Pressure: PN10, PN16, PN25
Coating: WRAS approved epoxy powder at 300 micron thick
Media: Water
Certificate: ISO, SGS, CE
| Name | Material |
| Body | Ductile iron GGG50 with WRAS FBE coating |
| Stem | Carbon steel with galvanization, SS420, SS304, SS3316 |
| Wedge disc | Ductile iron GGG50 overall EPDM rubber coasting |
| handle | Thin iron, ductile iron |
| Wedge nut | Ductile iron, brass |
Ductile Iron Resilient Seat OS&Y Gate Valve Features:
• Ductile iron body and bonnet provide strength and corrosion resistance
• Compact, non-rising stem design requires less overhead space
• Resilient wedge gate encapsulated in rubber for bubble-tight shutoff
• Vulcanized SBR wedge mechanically retained with stainless steel retainer
• Fusion-bonded epoxy coating exceeds AWWA C550 corrosion protection standards
• Sizes from 4-24 inches available in pressure classes up to 350 psi
• Flanged end connections per ASME B16.1 for easy installation
• Visual position indicators confirm valve status at a glance
• O-ring sealed stuffing box requires minimal maintenance
• Exceeds applicable AWWA, ANSI, and ASTM standards
• ISO 9001 certified manufacturing ensures consistent quality
• 2-year limited warranty for peace of mind
• Superior flow control, reduced operating torque, and proven reliability
• Ideal for water, wastewater, irrigation and other applications
Ductile Iron Resilient Seat OS&Y Gate Valve Advantages:
• Durable Construction – The ductile iron body and bonnet provide maximum strength, pressure retention, and corrosion resistance for a long service life.
• Resilient Wedge – The vulcanized SBR rubber encapsulated gate prevents wedging action and enables smooth, low-torque operation.
• Bubble-Tight Shutoff – The resilient wedge provides positive drip-tight bi-directional shutoff when closed, preventing leakage.
• Compact Design – The OS&Y valve requires less overhead space than rising stem gate valves.
• Corrosion Protection – The fusion-bonded epoxy coating provides excellent protection against corrosion.
• Reduced Operating Torque – The non-binding wedge design allows easy operation compared to solid wedge gates.
• Low Maintenance – The O-ring stuffing box eliminates fretting and leakage, minimizing required upkeep.
• Visual Position Indicators – The rising handwheel stem shows valve position at a glance for easy status verification.
• Range of Sizes & Pressures – Available in sizes from 4-24 inches, with pressure classes up to 350 psi.
• Manufactured domestically according to stringent quality standards for reliable performance.
• Exceeds Industry Standards – Meets or surpasses applicable AWWA, ASTM, ANSI standards for safety and quality.
Ductile Iron Resilient Seat OS&Y Gate Valve Applications
Municipal Water Systems
• The city chose ductile iron OS&Y gate valves for installation in the new municipal water system due to their durability, reliable performance, and ease of maintenance. The fusion-bonded epoxy coating provides excellent corrosion resistance for long service life.
Industrial Process Control
• For precise flow control in the chemical plant’s pipelines, corrosion-resistant ductile iron OS&Y gate valves were selected. Their resilient seats enable smooth opening and closing while providing positive shutoff.
Irrigation Networks
• To control water flow in the agricultural irrigation system, the farm owners opted for heavy-duty ductile iron OS&Y gate valves. The compact OS&Y design takes up less space while providing years of trouble-free operation.
Wastewater Treatment
• At the wastewater treatment plant, resilient seat OS&Y gate valves were installed for their ability to withstand corrosion. Their durable iron construction and protective coating prevent deterioration from exposure to sewage.
Water Transmission Mains
• Along the water transmission mains, the water authority utilized ductile iron OS&Y gate valves for sectional control. Their fusion-bonded epoxy coatings prevent internal and external corrosion within the buried piping network.
Flood Control Systems
• For use in the stormwater flood control system, the ductile iron OS&Y valves were chosen for their strength and water-tight closure. The valves precisely regulate downstream discharges, preventing flooding during heavy rains.