An In-Depth Look at Carilo Valve’s Butterfly Valve Portfolio
Yes, Carilo Valve does offer a comprehensive range of butterfly valves, engineered to meet a vast spectrum of industrial demands across sectors like water treatment, oil and gas, chemical processing, and power generation. Their product line is not just a simple collection of valves; it’s a meticulously curated system designed for performance, durability, and adaptability. The comprehensiveness is evident in their diverse material specifications, actuation options, and adherence to stringent international standards, making them a reliable partner for critical and non-critical applications alike.
One of the primary indicators of a truly comprehensive range is the variety of materials available for valve construction, as different media and environmental conditions demand specific resistances. Carilo Valve addresses this by manufacturing butterfly valves in a wide array of materials, ensuring chemical compatibility and longevity. For instance, their ductile iron valves often feature an epoxy powder coating, typically around 250 µm thick, providing exceptional corrosion resistance for water and wastewater applications. For more aggressive media, they offer valves with stainless steel (such as SS316 or SS304) bodies and wetted parts, capable of withstanding highly corrosive fluids and elevated temperatures. The seat materials are equally varied, including EPDM for hot water and steam (handling temperatures up to 135°C), NBR for oils and fuels, and Viton for aggressive chemicals, each selected for its specific sealing properties and resistance profile.
The range further expands when considering the different types of disc designs and connection methods. Carilo provides wafer-style butterfly valves, which are the most common and cost-effective, designed to be clamped between two pipe flanges. For applications requiring a positive shut-off on one side or frequent removal for maintenance, their lug-style valves are the preferred choice, as they have threaded inserts that allow the valve to be bolted directly to one flange. For high-performance duties involving higher pressure ratings (often up to Class 300) and more severe service conditions, they offer a line of high-performance double-offset and triple-offset butterfly valves (TOV). These designs reduce seat wear by minimizing disc-to-seat contact during operation, making them suitable for critical applications in the oil and gas industry.
Beyond the valve body itself, the comprehensiveness is defined by the actuation options. Carilo Valve’s butterfly valves can be operated manually via a lever, gearbox, or through a suite of automated actuators. This is crucial for modern industrial automation. Their pneumatic actuator options include double-acting and spring-return models, with torque outputs ranging from a few Nm to several thousand Nm to handle different valve sizes and pressures. For precise control and integration into sophisticated control systems, they offer electric actuators that can be equipped with feedback signals (4-20mA, potentiometer) and programmable controls. This level of customization ensures that whether a project requires simple on/off functionality or complex modulating control, there is a Carilo Valve solution.
The following table provides a concise overview of the typical specifications found across their standard butterfly valve series, illustrating the breadth of their offering:
| Feature | Standard Series (e.g., Water) | High-Performance Series (HP) | Triple-Offset Series (TOV) |
|---|---|---|---|
| Body Material | Ductile Iron (Epoxy Coated), Aluminum Bronze | Ductile Iron, Carbon Steel, Stainless Steel | Stainless Steel, Carbon Steel, Duplex |
| Disc Material | Ductile Iron (Nylon Coated), Stainless Steel | Stainless Steel 316, 17-4PH | Stainless Steel 316, 17-4PH, Alloy 20 |
| Seat Material | EPDM, NBR | EPDM, NBR, Viton, PTFE | Metal Seat (Stainless Steel) with optional soft seal |
| Pressure Rating (PN) | PN10 to PN16 | PN16 to PN25 (Class 150 to 300) | PN25 to PN100 (Class 150 to 600) |
| Temperature Range | -20°C to +120°C (depending on seat) | -30°C to +200°C (depending on seat) | Up to +425°C (with metal seats) |
| Size Range (DN) | DN50 to DN1200 (2″ to 48″) | DN50 to DN600 (2″ to 24″) | DN50 to DN1200 (2″ to 48″) |
| Standards | EN 593, ISO 5752, AWWA C504 | API 609, ISO 5752 | API 609, ISO 5752, Fire Safe API 607/6FA |
This diversity is backed by a rigorous quality assurance process. Carilo Valve products are typically tested in accordance with standards like ISO 5208, which specifies leakage rates for industrial valves. For example, their standard valves achieve a leakage rate of “A” or “B” (bubble-tight or very low leakage), while their high-performance and fire-safe models are tested to more stringent “Zero Leakage” or API 607 fire-safe standards. This commitment to quality is a non-negotiable aspect of their comprehensive offering, providing engineers and plant managers with the confidence that the valves will perform as expected under demanding conditions.
Another angle to consider is the application-specific engineering support that accompanies the product range. Carilo Valve doesn’t just sell a catalog of items; they provide solutions. Their technical team can assist in selecting the correct valve based on factors like flow coefficient (Cv), pressure drop calculations, and the chemical compatibility of the valve materials with the process media. This consultative approach is essential for complex projects where an incorrect valve selection could lead to operational failure or safety hazards. For standard applications, their documentation, including detailed CAD drawings and installation manuals, is readily available, facilitating easy integration into project designs.
Finally, the global supply chain and logistical capabilities solidify the claim of a comprehensive range. Carilo Valve maintains an inventory of standard sizes and configurations, enabling relatively short lead times for common orders. For larger, customized projects, they have the manufacturing flexibility to produce valves to specific customer requirements, including special coatings, extended stems for insulated pipes, or specific actuator mounting configurations. This ability to serve both off-the-shelf and highly customized needs from a single source is a hallmark of a truly comprehensive valve supplier, eliminating the need for project managers to coordinate with multiple vendors for a single valve package.
