UNOX Pneumatic Blowdown Valve – 33602

Pneumatic Blowdown Valve – On-Off Control

The UNOX Pneumatic Blowdown Valve is designed for reliable removal of sludge and sediment from boilers and steam systems. With a ductile iron GGG40 body and robust pneumatic actuator, it provides efficient on-off operation under demanding industrial conditions.

Available in sizes DN25–DN50 with Kvs values from 10 to 40 m³/h, the valve offers excellent flow capacity and stable performance. Featuring PTFE soft sealing (Class VI leakage rate) and V-pack stem sealing, it ensures long service life and minimal maintenance.

Key Features:

• Pneumatic on-off control for boiler blowdown applications
• Body: GGG40 ductile iron
• Pressure class: PN16 – 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: DN25 / DN32 / DN40 / DN50
• Flow capacity (Kvs): 10–40 m³/h

Applications:

• Boiler bottom blowdown
• Steam system sediment discharge
• Industrial water treatment
• Power plants and heating systems