Weflo EN 593 Center Line Butterfly Valve Fig. 2122 / 2123
High-Performance Butterfly Valve for Water, Fire Protection, and Industrial Flow Control
Introduction: The Critical Role of Valves in Industrial Flow Systems
In today’s complex industrial networks—whether in municipal water treatment, fire protection, HVAC systems, or processing facilities—valves are not just components; they are essential guardians of flow, safety, and control. They isolate equipment, modulate pressure, ensure backflow prevention, and allow operators to perform maintenance without disrupting an entire system. Among the various valve types, such as ball valves, gate valves, check valves, and control valves, the butterfly valve stands out for its compact design, rapid operation, and versatile application range.
The Weflo EN 593 Center Line Butterfly Valve Fig. 2122 / 2123 embodies the excellence expected from a modern butterfly valve—delivering consistent bubble-tight shut-off, ease of operation, and fire system readiness in one resilient package.
Complete Product Description: Weflo Fig. 2122 / 2123
The Weflo Fig. 2122 / 2123 is a center line butterfly valve compliant with EN 593, designed for use in demanding liquid flow systems. With a vulcanized resilient seat bonded to the body, this valve ensures zero leakage (bubble-tight) performance under rated pressure conditions. The robust ductile iron body, epoxy coated, provides strength, durability, and corrosion resistance even in harsh environments.
The gear-operated mechanism ensures smooth and controlled opening/closing operations, suitable for both manual and automated systems. It comes standard with a supervisory (tamper) switch, which is a key requirement in many fire protection systems to monitor valve position remotely.
The ISO 5211 actuator mounting flange allows easy integration with electric or pneumatic actuators, future-proofing the installation for automation upgrades.
Technical Specifications
| Feature | Details |
|---|---|
| Valve Type | Center Line Butterfly Valve |
| Model | Fig. 2122 / 2123 |
| Design Compliance | EN 593 Standard |
| Operation | Gear Operated |
| Working Pressure | 16 Bar / 250 PSI |
| Body Material | Ductile Iron, Epoxy Coated |
| Disc Material | Ductile Iron / Stainless Steel + EPDM/NBR |
| Seat Type | Vulcanized Resilient Seat |
| Stem Material | Stainless Steel |
| Actuator Mounting Pad | ISO 5211 |
| Monitoring Device | Built-in Supervisory (Tamper) Switch |
Key Features of the Weflo Butterfly Valve
1. Bubble-Tight Shut-Off
Thanks to the vulcanized resilient seat, this valve guarantees a zero-leakage seal. This is crucial in systems where even minimal leakage can cause contamination or safety issues—especially in fire protection lines.
2. Low Torque, High Cycle Life
Weflo’s precision manufacturing ensures low operating torque, reducing actuator sizing and operational effort. The design is rated for high cycle applications, ensuring durability over years of operation.
3. Gear Operation with Supervisory Switch
The valve is gear-operated for easy manual control and includes a supervisory switch, which is often mandatory in fire systems to detect unauthorized tampering or accidental closure.
4. ISO 5211 Mounting Compatibility
The valve includes a standardized ISO 5211 pad for direct mounting of electric or pneumatic actuators, making automation simple without additional brackets or custom modifications.
5. Robust Construction
The ductile iron body is coated for corrosion resistance, while the stainless steel disc and stem provide additional durability and reliability in high-humidity or aggressive environments.
Applications in Industrial Systems
The Weflo Fig. 2122 / 2123 butterfly valve is trusted across a variety of sectors, including:
🔥 Fire Protection Systems
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The built-in tamper switch makes this valve ideal for sprinkler system risers and isolation valves.
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Ensures compliance with NFPA and global fire codes.
💧 Water Treatment & Distribution
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Suitable for use in potable, raw, or recycled water systems.
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Used in municipal treatment plants, pumping stations, and pipeline distribution networks.
❄️ HVAC Systems
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Excellent for chilled water loops, condenser water, and other closed-loop systems.
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Provides fast shut-off and minimal pressure drop.
🏭 Industrial & Chemical Applications
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Compatible with non-aggressive chemicals and industrial process fluids.
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Used for general isolation or throttling in process piping.
Other Weflo Butterfly Valve Series Available
Weflo provides a full range of butterfly valve configurations to match different installation styles and flow requirements:
| Model | Type |
|---|---|
| Fig. 2502 / 2502A | Lug Butterfly Valve |
| Fig. 2302 / 2302A | Wafer Butterfly Valve |
| Fig. 2902 / F1022-300 | Grooved End Valve |
| Fig. 2105 / 2108 | Double Eccentric Valve |
| Fig. 2102 / 2103 / 2952A | Center Line Variants |
Whether you need lug-type, wafer-type, or double-eccentric designs, Weflo offers a tailored solution that integrates seamlessly into any industrial pipeline.
Distribution & Availability – Why Buy from Us
We are a trusted valve distributor and valve stockist for Weflo products across Indonesia and Southeast Asia. Our strong inventory positions and technical expertise set us apart:
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✅ Ready Stock for fast delivery of Weflo butterfly valves
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✅ Actuator Integration – electric or pneumatic mounting & testing in-house
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✅ Local Support – consultation, selection, and sizing from experienced valve engineers
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✅ OEM & EPC Support – documentation, datasheets, and bidding compliance
We also supply a full range of industrial valves including gate valves, check valves, ball valves, and control valves for every segment of flow control.
Get a Quote or Consult Today
If you need a durable, fire-system compliant, and easy-to-automate butterfly valve, the Weflo EN 593 Center Line Butterfly Valve Fig. 2122 / 2123 is your solution.
📩 Contact our sales team today to:
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Request pricing and datasheets
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Schedule a technical consultation
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Inquire about bulk stock and fast delivery
