CLASSIC - DN10, DN15, DN25 (2/2-Way externally controlled) Series CLASSIC, alternatively with flange-mounted pilot valve, coaxial control tube and rotating valve seat
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ROSS Coaxial Valves – Reliable, Versatile, and Efficient
ROSS Coaxial Valves are designed for demanding industrial applications where fast response times, high flow rates, and reliability are essential.
- The Series CLASSIC - (DN10, DN15, DN25) is available as 2/2- or 3/2-way valves, either direct acting or externally controlled, offering flexible solutions for various applications.
Key Features & Benefits
| Media | liquid, highly viscous, contaminated, aggressive and abrasive media as well as neutral and reactive gases |
| Spherical valve seat | 4-way rotation ensures longer service life and high flow rate |
| Fast and precise control | efficient process control, optimized system performance |
| Customized design | enables versatile use and different media |
| Maintenance | in many cases, it is not necessary to remove the coaxial valve for maintenance |
For enhanced functionality, a wide range of Accessories for Coaxial Valves is available.
OPEN CONFIGURATOR
Standard Specification, externally controlled:
| GENERAL | Sizes | DN10, DN15, DN25 |
| Construction design | coaxial control tube and rotating valve seat | |
| Functions | 2/2- and 3/2-Way, normally closed NC or normally open NO | |
| Operating mode | externally controlled, alternatively with flange-mounted pilot valve (see accessories) | |
| Mounting position | any | |
| Port Size | G 1/4 - G 1-1/2; NPT 1/4 - NPT 1-1/2 | |
| kv-ø-Value | DN10 - max. 3.7 m³/h, DN15 - max. 8.4 m³/h, DN25: max. 21.9 m³/h | |
| VALVE BODY | Material | aluminium black anodized or stainless steel |
| CONSTRUCTION MATERIAL | Valve seat | PTFE, others on request |
| Sealing material | FKM, on demand EPDM, NBR and others available on request | |
| Materials in contact with media | aluminium black anodized; stainless steel on request | |
| Control tube | stainless steel | |
| OPERATING CONDITIONS | Operating pressure* | 0 - 16 bar / 0- 40 bar / 0-64 bar / 0-100 bar, higher pressure on request |
| Back pressure** | max. 0 - 16 bar, higher back pressure on request | |
| Vacuum (special design) | < 1* 10-6 mbar*l/s | |
| Ambient temperature | -10°C to +80°C, other temperatures on request | |
| Media temperature | -10°C to 130°C, other temperatures on request | |
| PNEUMATIC DRIVE | Control | double-acting with spring return (spring made of 1.4310), preferably controlled via 5/2-way pilot valve. Alternative single-acting controlled with 3/2-way pilot valve. |
| Operating pressure | 3 to 10 bar, other pressure on request | |
| Air consumption | 7 cm³ - 10 cm³/stroke | |
| Cycle time | adjustable via 20-3000 ms exhaust throttle, cushioning piston on request | |
| Flow media | filtered air, neutral gases, other media on request | |
| Control connections cylinder | G1/8 (port sizt 2 + 4), NPT 1/8 (port size 2 + 4) on request | |
| Control connections for pilot valve | Adapter plate NAMUR, ISO 1 on request | |
| MOUNTING | mounting brackets (see accessories) or mounting hole | |
| WEIGHT | DN10 - 1.5 kg, DN15 - 3.7 kg, DN25 - 7.7 kg | |
*Operating pressure 2/2-way P → A – 3/2-way P → A / P → R
**Back pressure 2/2-way A → P – 3/2-way A → P / R → P
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CLASSIC - DN10, DN15, DN25 (2/2-Way externally controlled)