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.

4 | GE Oil & Gas

General Data

Body and Bonnet

Type: Cast, one piece, top entry,

Optional:

Material:
Lining:
Optional:
Connections:
Bonnet connection: Thr
Outside pr

otection: Epoxy coating

self fl ushing
with steam/hotw
jacket (SJ)
Nodular ductile ir

A, translucent, melt processed

PF
antistatic material
Flanged

ough-bolted

ater

on, heat treated

Trim

Plug type: Eccentrically rotating
Plug materials: PF
Seat ring type: Conical, sealed with O-ring
Seat ring material: Vir
Optional:

Optional:

* R

efer to specifi c actuator and accessory specifi cation literature

for complete information.

A coated stainless steel

gin PTFE
other materials
(consult GE)
PFE O-ring

Capacity:

Flow characteristic: Modifi ed linear

P

Optional:

C

v

acking:

ratio: 80:1

Full capacity and r
in all sizes

PTFE/Graphite, chevr
rings back
O-ring follower
leak detector or
flushing connection

ed up by a double

educed factor

on type

Flow Direction: Flow to close

Actuator:

Type: Spring-opposed rolling-diaphragm

Y
Optional:

*

oke:

(Model 35)

on

Cast ir

y handwheel/limit-stop

auxiliar
manual actuator (Model 20)

31000 Series Rotary Control Valves | 5

Connections

Valve Size PN Connections ANSI Connections

Inches mm Flanges Face to Face

Dimensions

1, 2, 3 25, 50, 80 PN 10

1) Connections according to all standard PN (ISO, EN and equivalent national standards, AFNOR, BS, DIN, etc.)

2) Equivalent to DIN 3202/F1

3) Connections according to ANSI B16.5

(1)

PN 16

(125 AARH)

IEC 534-3

(2)

Table II

Flages Face to Face

(3)

150 RF

(125 AARH)

Pressure/Temperature Rating

Dimensions

ANSI B16.10

Globe Control

Valve

Vacuum operation within the same temperature range.

Seat Leakage

Leakage Class VI, according to IEC 534-4 and ANSI/FCI 70.2

6 | GE Oil & Gas

CV and F

L

Valve Size Orifice Diameter Actuator Travel

Inches mm inl (mm) in. (mm)

- 3.5 (89) 0.64 1.2

- 3.5 (89) 0.64 2

- 3.5 (89) 0.64 3

1 25

2 50

3 80

- 3.5 (89) 0.64 4

.394 (10) 3.5 (89) 0.64 5

.472 (12) 3.5 (89) 0.64 8

.669 (17) 3.5 (89) 0.64 14

.827 (21) 3.5 (89) 0.64 20

- 3.5 (89) 0.64 10

.945 (24) 3.5 (89) 0.64 33

1.299 (33) 3.5 (89) 0.64 59

1.575 (40) 3.5 (89) 0.64 82

1.732 (44) 3.5 (89) 0.64 104

2.283 (58) 3.5 (89) 0.64 182

3.071 (71) 3.5 (89) 0.64 260

F

L

C

V

31000 Series Rotary Control Valves | 7

Materials of Construction

Note: leak detector or fl ushing connection is optional

8 | GE Oil & Gas

Materials of Construction

Ref. No. Description Standard Materials (Optional Materials)

1 Body Ductile Iron ASTM A395/PFA Lined

2 Bonnet Ductile Iron ASTM A395/PFA Lined

3 Plug PFA encapsulated Stainless Steel

4 Seat Ring

5 O-Ring

6 Packing PTFE/Graphite - Chevron Ring System

7 Packing Box Ring Stainless Steel

8 Disc Springs (Set) Spring Steel

9 Packing Follower Stainless Steel

10-11 O-Rings Viton

12 Actuator Connecting Flange Stainless Steel

13 Wiper Ring Neoprene

14-19 Bolting Stainless Steel

Virgin Solid PTFE

Other Materials (Consult GE)

FEP coated Viton

Perfl uoroelastomer (PFE)

®

®

31000 Series Rotary Control Valves | 9

Dimensions and Weights

Dimensions (inches)

PN 10
PN 16

H

ANSI

Class

50

J K L

Valve Size A

Inch DN

1 25 6.30 7.25 6.93 11.81 8.31 6.42 5.52 4.61 3.15 3.62 10.04 2.05 7.28 40

2 50 9.06 10.00 6.93 11.81 8.31 6.42 5.52 4.61 4.53 5.00 10.63 3.07 7.87 60

3 80 12.21 11.75 6.93 11.81 8.31 6.42 5.52 4.61 6.10 5.87 11.42 3.94 8.66 97

* Including Handwheel

PN 10
PN 16

ANSI

Class

150

B C D E F G

Weight

(lbs)

*

10 | GE Oil & Gas

Dimensions and Weights

Dimensions (millimeters)

PN 10
PN 16

H

ANSI

Class

50

J K L

Valve Size A

Inch DN

1 25 160 184 176 300 211 163 140 117 80 92 255 52 185 18

2 50 230 254 176 300 211 163 140 117 115 127 270 78 200 27

3 80 310 298 176 300 211 163 140 117 155 149 290 100 220 44

* Including Handwheel

PN 10
PN 16

ANSI

Class

150

B C D E F G

Weight

(kg)

*

31000 Series Rotary Control Valves | 11

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Other company names and product names used in this document are the registered trademarks
or trademarks of their respective owners.

© 2013 General El ectric Comp any. All rights r eserved.

GEA20234 06/2013