Specifications
Description
The Zurn Wilkins 8-48OSY is a 8" resilient-wedge gate valve with an outside stem & yoke (OS&Y), flanged end connections. It is UL Listed, C-UL Listed and FM Approved, rated 250 psi maximum working water pressure. It features a ductile iron body. Rated to 250 psi and up to 140°F. This model is certified lead-free for potable-water installations.
The 48OS&Y Gate Valve is used to provide a visual indication of whether a valve is in the open or closed position, and is utilized on fire sprinkler system applications. Features of this resilient wedge gate valve include stainless steel internals and stem, and outside stem and yoke. The 48OS&Y has a maximum working water pressure of 250 psi, maximum working water temperature of 140°F, and hydrostatic test pressure of 500 psi. Choose from connection options such as flanged, grooved, or flanged x grooved ends.
Features
- Multiple end connection options provide versatile installation
- Easy indication of valve open or closed position for reduced inspection time
- For stand alone use or on Backflow Preventers
- Stainless steel internals and stem resist corrosion
- Low-lead law compliant
- AWWA Compliant C515, C-550
Common Questions
- Is this UL/FM listed for fire service?
- Yes. Every Model 48 gate valve -- NRS or OS&Y -- is UL Listed, C-UL Listed and FM Approved, and meets AWWA C515 / C-550. It can be identified as a genuine Zurn Wilkins valve by the raised "WILKINS" lettering cast into the body.
- Rising or non-rising stem?
- This is an OS&Y (outside stem and yoke) valve -- the stem rises out of the yoke as it opens, giving a visual open/closed indication and room for a supervisory tamper switch (OSY-40 accessory).
Specifications
- Type: Resilient Wedge Gate Valve with Outside Stem & Yoke (OS&Y)
- Size: 8"
- Connection: Flanged
- Body Material: Ductile Iron
- Pressure Class: Class 150
- Max Pressure (psi): 250
- MPN: 8-48OSY
- Temperature: up to 140°F
- Certifications: UL, C-UL, FM, NSF-372
- Lead-Free: Yes
- Valve Style: Gate
- Stem Type: OS&Y Rising
- Wedge / Disc Type: Resilient
- UL/FM Listed: Yes
- Pressure Rating: 250 psi
- Operator / Handle: Handwheel
- Bonnet Style: Bolted
- Standards: AWWA C515, C-550 Compliant
Product Information
| SKU | UPC | Spec Sheet |
|---|---|---|
| 8-48OSY | 612052057026 | Download |
Dimensions
| Size Nominal | 8" | End Connection | Flanged |
| Pressure Class | Class 150 | — | — |
Details
| Series | 48OSY | Device Type | Resilient Wedge Gate Valve with Outside Stem & Yoke (OS&Y) |
| Lead Free | Yes | Body Material | Ductile Iron |
| Max Pressure PSI | 250.0 psi | Max Temp °F | 140.0 °F |
| Valve Style | Gate | Stem Type | OS&Y Rising |
| Wedge Type | Resilient | UL FM Listed | Yes |
| WOG WSP Rating | 250 psi | Operator | Handwheel |
| Bonnet Type | Bolted | Standards | AWWA C515, C-550 Compliant |
Certifications & Standards
| UL | C-UL |
| FM | NSF-372 |
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