Mushroom valve

Discharge valves for fine chemical or pharmaceutical reactor plants are required to meet the following criteria:

• sealed tight at process conditions (from vacuum to 20 barg or more)
• allow a complete and total discharge of the vessel
• create no dead areas
• be completely dismountable and cleanable
• integratable process instruments

In order to meet customer needs, Delta developed a Mushroom Zero Dead Area Valve. The body and plug design allows for easy product flow, avoiding any dead areas.

The tightness is provided by the compression between the plug and the valve seat. The actuation is provided by a stem, driven by a double acting pneumatic actuator. If there is a lack of instrument air, the valve can be opened using the side hand lever.

The valve, depending on process needs, can be equipped with:

• limit switches, for valve status reporting
• a temperature probe or other process instruments located on the valve plug
• a CIP/SIP system, for cleaning and sterilizing