GE 31000 Technical Specifications
GE Oil & Gas
Technical Specifications
Masoneilan*
31000 Series Rotary
Control Valves
Eccentric Rotary Control Valves with PFA Liner
06/2013
2 | GE Oil & Gas
Table of Contents
Features .....................................................................................................................3
Numbering System .............................................................................................. 4
General Data
Connections
Pressure/Temperature Rating
............................................................................................................ 5
.............................................................................................................6
.......................................................................... 6
Features
Seat Leakage ........................................................................................................... 6
and FL ..................................................................................................................... 7
C
v
Materials of Construction ................................................................................... 8
Dimensions and Weight
................................................................................... 10
The 31000 Series control valve is a PFA lined, eccentric plug
control valve for corrosive applications which incorporates the
following features:
Excellent Performance
The eccentric rotary plug design provides excellent throttling
control accuracy, low dynamic forces and tight shut off. The
straight through flow pattern results in high fl ow capacities.
Corrosion Resistance
PFA lining with guaranteed minimum wall thickness provides
resistance to most corrosive fl uids.
Reduced Fugitive Emissions
The rotary design inherently reduces wear on the packing as
compared to a typical linear valve. Additionally, the standard
design includes PTFE/Graphite packing, chevron rings, backedup by a double O-ring follower to provide further reliability in
corrosive applications.
Ease of Maintenance
The compact dimensions and low weight design allows for easy
installation and removal without compromising piping forces.
Reliability
The dovetail grooves provide mechanical anchoring between
metal body and PFA lining to ensure high performance under
vacuum and at high temperature. The powerful, field proven
rolling diaphragm actuator provides positive fail-safe action. The
actuator linkage is totally enclosed that comes with a combination
handwheel and adjustable limit stop with locking mechanism.
All actuators are available with a complete line of options and
accessories.
31000 Series Rotary Control Valves | 3
Numbering System
1st 2nd 1st 2nd 3rd 4th 5th
Actuator Type
35 Spring-opposed
rolling-diaphragm
—
—
Body
Series
31
3 1 0
Actuator Mounting
(Type 25 Only)
1 Parallel to pipeline, air to close
2
Parallel to pipeline, air to open
Seat
Material
1 PTFE
2
Special
Not Assigned
0
Note: Actuator positions 1 and 2 are standard configurations. View seen from actuator end. Other positions are available:
consult GE.
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