Audco Slimseal Butterfly Valve Model IBF-2JS with Tamper Switch – Lever Operated
Looking for a reliable Audco IBF-2JS butterfly valve with tamper switch (supervisory switch) for fire protection, HVAC, or monitored industrial systems? The Audco Slimseal Butterfly Valve Model IBF-2JS equipped with a tamper-proof supervisory switch is an ideal choice for applications requiring valve position monitoring and alarm integration. This PN16 wafer-type centric disc valve features an integrally moulded Nitrile liner and can be customized with a tamper switch for enhanced safety and compliance in fire sprinkler or critical piping systems.

Key Features of Audco IBF-2JS with Tamper Switch
- Integrally Moulded Nitrile Liner: Vulcanised in-situ for permanent, leak-proof sealing – superior to loose liners.
- Tamper/Supervisory Switch: Monitors valve position (open/closed); triggers alarm on unauthorized operation or partial closure – essential for fire safety systems.
- Lever Operated: Easy manual quarter-turn with lockable lever; tamper switch integrates seamlessly for position feedback.
- Wafer Design: Compact, lightweight for PN16 flange installation.
- Bi-Directional Bubble-Tight Shut-Off: Zero leakage performance.
- Maintenance-Free: “Fit and forget” reliability with no liner maintenance required.
- Pressure Rating: PN16 (16 bar) suitable for medium-pressure lines.
This configuration is widely used where system integrity monitoring is critical, combining Audco’s proven Slimseal design with supervisory switch for NFPA/UL-compliant fire protection.
Technical Specifications
| Parameter | Details |
|---|---|
| Valve Type | Wafer Centric Slimseal Butterfly Valve |
| Model / Catalog No. | IBF-2JS (Lever Operated) + Tamper Switch Option |
| Pressure Rating | PN16 |
| Body Material | Cast Iron (BS 1452 Gr. 250) |
| Disc Material | Nylon Encapsulated SG Iron |
| Liner Material | Integrally Moulded Nitrile |
| Shaft/Stem | Stainless Steel (SS 410) |
| End Connection | Wafer (Compatible with PN16 Flanges) |
| Operation | Hand Lever with Tamper/Supervisory Switch |
| Design Standard | API 609 / BS EN 593 / IS 13095 |
| Sizes Available | 50mm to 250mm (2″ to 10″) |
| Temperature Range | Up to 80-100°C (Nitrile dependent) |
| Switch Type | SPDT Contacts (Typically 2 sets for alarm integration) |
Applications of Audco IBF-2JS Butterfly Valve with Tamper Switch
- Fire Sprinkler & Protection Systems
- HVAC Monitoring Lines
- Oil & Fuel Pipelines with Safety Requirements
- Water Treatment & Distribution
- Industrial Process Isolation with Position Feedback
- Building Management Systems
The Nitrile liner offers excellent resistance to oils, fuels, and hydrocarbons, while the tamper switch ensures real-time monitoring for safety compliance.
Audco IBF-2JS with Tamper Switch Price Guide (2025)
Prices depend on size, switch specifications, quantity, and dealer (GST & freight extra). Standard IBF-2JS prices are competitive; tamper switch adds 20-40% premium. Contact dealers for exact quotes & discounts:
- 50mm (2″): Request latest quote
- 80mm (3″): Request latest quote
- 100mm (4″): Request latest quote
- 150mm (6″): Request latest quote
- Larger sizes: Consider gear-operated variant with switch
Ex-stock or quick delivery from authorized Audco/Flowserve/L&T distributors.
Why Choose Audco Slimseal IBF-2JS with Tamper Switch?
Audco Slimseal (Flowserve/) valves lead the market with integral moulding technology that prevents liner failures. Adding a tamper/supervisory switch provides:
- Enhanced system security & alarm integration
- Compliance with fire safety standards
- Reduced torque for easy operation
- Long-term reliability in monitored applications
- Genuine warranty & support
Opt for the Audco IBF-2JS PN16 butterfly valve with tamper switch for secure, monitored flow control in critical systems.
Contact authorized Audco/L&T Valves dealers today for the updated 2025 price list, custom configurations, datasheets, or bulk quotations on IBF-2JS Slimseal wafer butterfly valves with supervisory switch. Instant quotes & fast delivery available!