Midland Industries
Midland Ductile Iron Resilient Seated OS&Y AWWA Gate Valve - Flanged x Flanged
- Availability:
- Allow 2-3 Days to Ship
- Weight:
- 0.00 LBS
Description
Midland Ductile Iron Resilient Seated OS&Y AWWA Gate Valve - Flanged x Flanged
Midland Ductile Iron Resilient Seated OS&Y AWWA Gate Valves are designed for dependable shutoff in compatible commercial, municipal, fire-protection, and industrial water piping systems.
These AWWA C515 compliant valves feature a rugged ductile iron body, resilient seated wedge, stainless steel rising stem, graphite packing, and flanged x flanged end connections. Rated for 300 PSI working pressure, the OS&Y configuration provides clear visual indication of valve position while supporting reliable long-term isolation service.
Product Highlights
- Midland resilient seated OS&Y gate valve
- AWWA C515 compliant design
- Outside Screw & Yoke rising stem configuration
- Flanged x flanged end connections
- Heavy-duty ductile iron body
- Resilient wedge for dependable shutoff
- Stainless steel stem for corrosion resistance
- Graphite stem packing
- Handwheel operated
- 300 PSI pressure rating
- Provides visible indication of valve position
- Suitable for water distribution, fire protection, municipal, and industrial service
Technical Specifications
| Product Type | Resilient Seated OS&Y Gate Valve |
|---|---|
| Brand | Midland |
| Standard | AWWA C515 |
| Body Material | Ductile Iron |
| Stem Material | Stainless Steel |
| Stem Design | Rising Stem / Outside Screw & Yoke |
| Stem Packing | Graphite |
| Closure Type | Resilient Seated Wedge |
| Connection Type | Flanged x Flanged |
| Operator | Handwheel |
| Pressure Rating | 300 PSI |
| Listed Sizes | 3", 4", 6", 8", 10", and 12" |
| Primary Function | On/Off Flow Isolation |
| Typical Service | Water Distribution, Fire Protection, Municipal Infrastructure, and Compatible Industrial Water Systems |
Available Options
9610F3
Size: 3"
9610F4
Size: 4"
9610F6
Size: 6"
9610F8
Size: 8"
9610F10
Size: 10"
9610F12
Size: 12"
Valve Configuration
Flanged Inlet
The inlet flange provides a secure bolted connection to a compatible mating flange in the piping system.
OS&Y Valve Body
The resilient seated wedge moves through the ductile iron body while the rising stem provides external indication of valve position.
Flanged Outlet
The outlet flange connects to the downstream piping system using the appropriate gasket and bolting arrangement.
Construction Details
The Midland OS&Y gate valve uses a heavy-duty ductile iron body designed for strength and durability in demanding waterworks and fire-protection applications.
A resilient seated wedge provides dependable shutoff while helping reduce operating torque. The stainless steel stem offers corrosion resistance, and graphite packing helps maintain sealing around the stem during repeated operation.
The outside screw and yoke arrangement keeps the stem threads outside the primary flow path and allows valve position to be identified visually as the stem rises or lowers.
Why Choose an OS&Y Gate Valve?
Visible Valve Position
- Rising stem provides clear position indication
- Easy to identify open or closed status
- Useful for inspection and maintenance
- Common configuration in fire-protection systems
- Supports straightforward operational checks
Dependable Isolation
- Resilient seated wedge
- 300 PSI pressure rating
- Ductile iron body
- Multi-turn handwheel operation
- Designed for full-open or full-closed service
OS&Y Operation
Open Position
As the handwheel is turned to open the valve, the stem rises through the yoke while the resilient wedge lifts away from the flow path.
Closed Position
As the valve is closed, the rising stem lowers and the resilient wedge moves into the shutoff position.
Typical Applications
Municipal & Fire Protection
- Municipal water distribution
- Fire sprinkler supply piping
- Fire water mains
- Building fire service lines
- Water utility infrastructure
Commercial & Industrial Systems
- Commercial water piping
- Industrial water systems
- Mechanical room piping
- Plant utility systems
- General water isolation service
OS&Y vs. Non-Rising Stem Gate Valve
OS&Y / Rising Stem
The stem rises as the valve opens, providing visible indication of valve position and keeping stem threads outside the primary flow path.
Non-Rising Stem
A non-rising stem remains within the valve assembly during operation, providing a more compact installation but without the same external valve-position indication.
Our valve, fitting, and industrial product specialists can help review your valve size, FIP connection requirements, pressure rating, handle configuration, media compatibility, and application before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What does OS&Y mean?
OS&Y means Outside Screw and Yoke. The stem rises as the valve opens, providing visible indication of valve position.
What standard does this valve meet?
The supplied product information identifies the valve as compliant with AWWA C515 requirements.
What is the pressure rating?
The supplied product information lists a 300 PSI pressure rating.
What sizes are listed?
The supplied product information lists 3", 4", 6", 8", 10", and 12" nominal sizes.
What material is the valve body?
The supplied product information identifies ductile iron body construction.
What material is the stem?
The supplied product information identifies a stainless steel stem.
What type of packing is used?
The supplied product information identifies graphite stem packing.
What type of connections does the valve use?
The valve uses flanged connections on both ends.
Is this valve suitable for fire-protection service?
The supplied product information identifies fire protection as a typical application. Verify project-specific approvals and requirements before selection.
Can this valve be used for throttling?
Gate valves are generally intended for full-open or full-closed isolation service rather than routine throttling.
What should I verify before ordering?
Confirm nominal valve size, flange dimensions, pressure requirements, system media, vertical operating clearance, and project specifications before ordering.
Important Ordering & Installation Notes
- This listing is for a Midland Ductile Iron Resilient Seated OS&Y AWWA Gate Valve with flanged x flanged connections.
- Listed sizes are 3", 4", 6", 8", 10", and 12".
- Listed SKUs include 9610F3, 9610F4, 9610F6, 9610F8, 9610F10, 9610F12, and 9610F25.
- The supplied product information lists a 300 PSI pressure rating.
- Confirm the required nominal size before ordering.
- Verify flange dimensions, drilling, bolt pattern, and mating flange compatibility.
- Provide adequate vertical clearance for the rising stem throughout the full operating range.
- Use appropriate flange gaskets and bolting for the installation.
- Ensure mating flanges and connected piping are properly aligned before tightening hardware.
- Do not use flange bolts to force misaligned piping into position.
- Gate valves should generally be operated fully open or fully closed rather than used for routine throttling.
- Verify system pressure, media compatibility, and application requirements before placing the valve into service.
- For fire-protection applications, confirm all project-specific approval and listing requirements.
- Install according to applicable AWWA requirements, piping codes, project specifications, and manufacturer recommendations.
