UNOX Multi Spring 2 Way Pneumatic Control Valve – 33603

Multi Spring 2 Way Pneumatic Control Valve – 33603

The UNOX multi spring 2-way pneumatic control valve is designed for reliable on-off service in steam, water, and industrial fluid applications. With a robust GGG40.3 ductile iron body and PN25 pressure rating, it ensures safe operation under demanding conditions.

The actuator is equipped with a multi-spring design for stable control, and the valve can be configured as normally closed or normally open. PTFE soft sealing (Class VI) guarantees tight shut-off, while V-pack stem sealing ensures long service life with minimal maintenance.

Key Features:

• On-Off control with pneumatic actuator
• Multi-spring diaphragm design for durability
• Body: GGG40.3 ductile iron
• Pressure class: PN25
• Safety position: Normally Closed / Normally Open
• Leakage class: Class VI (PTFE soft sealing)
• Stem sealing: Class VI – V-pack
• Max. operating temperature: 220°C (428°F)
• Flange connection: DIN 1092-2 (PN16)
• Sizes: DN15 – DN150
• Flow capacity (Kvs): 4 – 260 m³/h

Applications:

• Steam and condensate systems
• Industrial water lines
• Process automation
• Power plants and heating systems

You can watch our “How Control Valve Works Animation. Working Principle of Steam Control Valve” video below.