Resilient Wedge OS&Y Gate Valve

A rising-stem fire protection control valve, the Resilient Wedge OS&Y Gate Valve is made to reliably isolate water flow in sprinkler, hydrant, and other water-based fire safety systems.

An elastomer-covered wedge is used in a resilient wedge design to effectively shut off the valve when it reaches its closed position. UL Listed and FM variants with flanged or grooved connections are offered for fire safety. Commercial versions of approved designs are offered for particular sizes and pressure ratings.

Specification:

Valve Type: OS&Y Gate Valve

Brand: LIFECO

Origin: UK

Operating Design: Outside Screw & Yoke

Work: ON/OFF for fire protection system

Approvals: FM/UL Approved

Sizes: 2″, 4″ 6″ 8″

Flanged: X Flanged Type

WP: 300 PSI

Flange rating: ANSI B16.5 Class 150

Pressure rating: Working Pressure 17.2 bar

Temperature: 40°C to 60°C

Primary Medium: Water

Wedge: Resilient / Elastomer Encapsulated

Body: Ductile Iron / Iron options

End Connection: Flanged / Grooved / Combination options

Design Standard: AWWA C515-based models

Coating: Epoxy-coated options

Typical Application: Fire Protection

Gate Valve Sizes in Bangladesh:

UL listed OS&Y gate valve in Bangladesh :

Sizes ---------------- Origin Certificate

2″ os&y gate valve UK UL listed

4″ os&y gate valve UK UL listed

6″ os&y gate valve UK UL listed

8″ os&y gate valve UK UL listed

Non-UL listed gate valve in Bangladesh:

Sizes ---------------- Origin Certificate

2″ os&y gate valve UK Non-UL

2.5″ os&y gate valve UK Non-UL

3″ os&y gate valve UK Non-UL

4″ os&y gate valve UK Non-UL

6″ os&y gate valve UK Non-UL

8″ os&y gate valve UK Non-UL

Features of Resilient Wedge OS&Y Gate Valve

1. Outside Screw & Yoke rising stem
2. Resilient wedge shut-off design
3. Clear visual open/closed indication
4. Full-bore waterway on selected models
5. Rubber or EPDM-encapsulated wedge options
6. Ductile iron body options
7. Stainless steel or corrosion-resistant stem options
8. Handwheel operation
9. Flanged-end configurations available
10. Grooved-end configurations available
11. Epoxy-coated internal and external surfaces on selected models
12. Fire protection models with UL / FM approvals
13. AWWA C515-based configurations available
14. Suitable for above-ground fire protection installations
15. Multiple nominal sizes and pressure ratings available

Benefits of Resilient Wedge OS&Y Gate Valve

Easy Open/Closed Identification

Employees can visually determine the valve state when it is operating correctly since the raised stem indicates an open position and the lowered stem shows a closed position.

Effective Sealing

An elastomeric sealing surface is incorporated into the robust wedge. By minimizing direct metal-to-metal contact at the sitting surfaces, this design aims to provide tight shut-off.

Practical Maintenance

Gate Valve operation and position verification are simple due to the exposed stem and yoke. Additionally, certain designs allow maintenance personnel to reach interior components without removing the entire valve body from the stream.

Advantages of Resilient Wedge OS&Y Gate Valve

1. Clearly visible valve position
2. Positive water flow isolation
3. Resilient wedge sealing
4. Robust metal construction
5. Suitable for critical fire protection pipelines
6. Easy handwheel operation
7. Flanged installation options
8. Grooved installation options
9. Corrosion-resistant coating options
10. Available in multiple sizes
11. Available in multiple pressure ratings
12. UL Listed / FM Approved options
13. Compatible with recognized waterworks standards
14. Suitable for sprinkler and hydrant networks

Application of Resilient Wedge OS&Y Gate Valve

1. Fire sprinkler systems
2. Fire hydrant systems
3. Wet riser systems
4. Fire pump discharge lines
5. Fire protection mains
6. Standpipe systems
7. Commercial buildings
8. Industrial facilities
9. Warehouses
10. Factories
11. Shopping complexes
12. Hospitals
13. Hotels
14. High-rise buildings
15. Water distribution pipelines

OS&Y Gate Valve Installation

Important installation considerations include:

1. Correct valve size
2. Correct flow-line alignment
3. Compatible flange or groove dimensions
4. Adequate stem clearance
5. Accessible handwheel position
6. Protection against mechanical damage
7. Correct support of connected pipework
8. Verification of open/closed indication
9. Post-installation operational testing

Why Choose Resilient Wedge OS&Y Gate Valve?

Its key strengths include:

1. Visible stem position
2. Resilient wedge sealing
3. Fire protection suitability
4. Durable body construction
5. Flanged and other connection options
6. Straightforward handwheel operation
7. Multiple size choices
8. Certified fire-protection options
9. Easy status verification
10. Suitable for critical water-based fire systems

Conclusion

Resilient Wedge OS&Y Gate Valve is used properly, the sturdy wedge offers efficient sealing, and its external screw-and-yoke design makes the open or closed position easily distinguishable.

Choose the valve for fire safety applications based on the approved system design, the necessary size and pressure, the connection standard, the installation requirements, and the relevant certification. FM and UL Listed For certain fire prevention applications, approved choices are offered by reputable manufacturers.