Masoneilan™ 31000 Series 

Rotary Control Valve

The 31000 Series control valve is a PFA lined, eccentric plug control valve for corrosive applications which incorporates the following features:

Available from stock 

Reliability

Dovetail grooves mechanically anchor the PFA lining, while the robust rolling diaphragm actuator provides positive fail-safe action with enclosed linkage and adjustable locking stops.

Reduced Fugitive Emissions

Rotary design minimizes packing wear compared to linear valves; standard PTFE/Graphite packing with chevron rings and double O-ring follower enhances sealing reliability.

 

Excellent Performance

The eccentric rotary plug design delivers precise throttling control, low dynamic forces, tight shutoff, and high flow capacity with a straight-through flow pattern.

Ease of Maintenance

Compact, lightweight design enables easy installation and removal without compromising piping forces or system integrity.

Technical Specifications

Size

1" through 3" (25 through 80 mm)

Body Materials

Cast iron PFA lined

Actuators

Model 35 spring-opposed rolling diaphragm

Trim

Eccentric rotary plug

Inherent Characteristics

Linear


Downloads

Masoneilan has made various downloads available for the Masoneilan 31000 Series, including the specification sheet and the information sheet. These can be downloaded via the Masoneilan website.

View available downloads

Related Products

Masoneilan 35000 Camflex

Masoneilan 28000 Varipak™ Valve

Masoneilan 21000 Series Single Port Valve

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