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Technical Specifications
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GE 37, 38 Technical Specifications

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GE Oil & Gas
Masoneilan* Valves
37/38 Pneumatic Spring Diaphragm Actuator
Technical Specifications
05/2013
Features
GE's Masoneilan Type 37 direct acting and Type 38 reverse acting pneumatic spring diaphragm actuators are designed to provide high performance. Their features include:
Heavy One-piece Yoke
Provides maximum strength and rigidity
Diaphragm Cases
Pressed steel upper and lower cases combine lightness, high me­chanical strength and adequate protection in the event of severe over-pressurization
Thrust Capability
Two actuator types and seven sizes provide a wide range of ap­plications
Diaphragm
Molded elastomer with fabric insert for strength, long life and high sensitivity
Linearity
The molded diaphragm and deep cases minimize area change and produce a linear relationship between travel and air pressure
Numbering System
2nd1st
3
Actuator
Types
37 Air to Close 38 Air to Open
2 | GE Oil & Gas
Direct: air to extend stem
Type 37
Reverse: air to retract stem
Type 38
Specifications
Nominal
Diaphragm Max. Bench Max. Actuator Effective Travel Range Supply Size Area (sq. in.) (in.) psi psi
11 71 1.0 3-15 60 6-30 13 105 1.5 3-15 60 6-30 15 145 2.0 3-15 60 6-30 18 200 2.5 3-15 60 6-30
18 (16") 200 4.0
6-30
18 (20") 200 4.0 6-30 60
Rev. only
24 330 4.0
6-30
NOTE: Additional travels and spring ranges available.
3-15 60
3-15
55
Travel Time - Typical Bench Values
8012 Electro- 7400 Actuator Travel pneumatic Pneumatic Size (inches) Positioner Positioner
1.5 6.3 13
2.0 11.4 20
2.5 21 34
4.0 32 48
¨
3-15 psi bench range and 20 psi supply. For 6-30 psi bench range,
increase travel time by 15%.
11 1.0 3.3 7
1.0 4.9 11
13
1.5 9.4 17
15
2.0 19 30
18
18 (16")
3.5 29 44
Time (seconds)¨
Model 37/38 Pneumatic Spring Diaphragm Actuator | 3
Materials of Construction
Direct: air to extend stem
4 | GE Oil & Gas
Type 37 Actuator *
* Size 11 view shown
Type 38 Actuator
Reverse: air to retract stem
Materials of Construction
Reverse - Type 38Direct - Type 37
Ref.
No. Description Materials
17 Yoke Cast Iron 18 Cap Screw Carbon Steel 22 Actuator Spring Spring Steel 26 Actuator Stem Steel 30 Hex Nut Carbon Steel 33 Spring Guide Carbon Steel 34 Spring Button Nickel Copper Alloy 35 Pipe Plug Plastic 36 Spring Adjuster Steel 37 Bushing Steel
39 Diaphragm
Insert 40 Diaphragm Plate Carbon Steel 41 Diaphragm Washer Carbon Steel 43 Diaphragm Case Carbon Steel 44 Diaphragm Case Carbon Steel 45 Cap Screw Carbon Steel 46 Hex Nut Carbon Steel 56 Travel Indicator Scale Aluminum 57 Machine Screw Stainless Steel 70 Ball & Retainer¨ Stainless Steel
¨
Size 13, 15, 18 and 24 only.
Elastomer w/Fabric
Ref.
No. Description Materials
15 Gasket (Packing Box) Copper 17 Yoke Cast Iron 18 Cap Screw Carbon Steel 19 Gasket Acrylic Fiber 20 Packing Nut Brass 21 Snap Ring Carbon Steel 22 Actuator Spring Spring Steel 22A Actuator Spring Spring Steel 26 Actuator Stem Stainless Steel 30 Hex Nut Carbon Steel 31 Packing Box Brass 32 Yoke Packing Braided PTFE 33 Spring Guide Carbon Steel 34 Spring Button Nickel Copper Alloy 36 Spring Adjuster Carbon Steel
39 Diaphragm
Insert 40 Diaphragm Plate Carbon Steel 41 Diaphragm Washer Carbon Steel 43 Diaphragm Case Carbon Steel 44 Diaphragm Case Carbon Steel 45 Cap Screw Carbon Steel 46 Hex Nut Carbon Steel 56 Travel Indicator Scale Aluminum 57 Machine Screw Stainless Steel 70 Ball & Retainer Stainless Steel 71 Spring Barrel Cast Iron 72 Spring Barrell Cap Cast Iron 73 Ball Bearing Race Steel 74 Cap Screw Carbon Steel
Elastomer w/Fabric
Model 37/38 Pneumatic Spring Diaphragm Actuator | 5
Handwheels
6A Series Side Mounted
8A Series Side Mounted
Side Mounted
Max. Max. H/W Actuator Travel Air Supply
Type Size Action (in.) psi
6A1
Reverse
6A2
Reverse
Reverse Direct &
6A3
Reverse Direct & Reverse
18 (20") Reverse 2.5 35
Reverse
8A Reverse 18 (20") Reverse 4.0 60
Reverse
Direct &
11
Direct &
13
Direct &
15
18
18 (16") Reverse 2.5 35
Direct &
18
18 (16")
Direct &
Direct &
24
1.0 60
1.5 60
2.0 60
2.0 40
2.5 35
2.5 60
4.0 60
4.0 55
Case Mounted
Case Mounted
Max. Turns H/W Actuator Travel for Rated
Type Size (in.) Travel
Direct Actuator
2-11 11 1.0 14.0 2-13 13 1.5 28.0 3-15 15 2.0 16.0 4-18 18 2.5 20.0 6-18 18 (16") 4.0 32.0 7-24 24 4.0 32.0
Reverse Actuator
9-11 11 1.0 14.0
9-13 13 1.5 21.0
6 | GE Oil & Gas
Dimensions (in.)
Type 6A
Side Mounted
* 1/2" NPT for No. 24 Actuators
Direct (Type 37)
Air to close
Direct (37) Reverse (38) Air to close Air to open
Type 8A
Side Mounted
Reverse (Type 38)
Air to open
Types 3-15, 4-18, 6-18,
Case Mounted
Case Mounted Handwheels
Type J K
2-11 9.00 9.50 2-13 9.00 9.50 3-15 12.00 12.75 4-18 18.00 12.75 6-18 18.00 15.50
9-11 9.00 13.00 9-13 9.00 16.25
Direct Actuator
Reverse Actuator
Actuator Spud Actuator Removal Dia. Type G H Size Clearance A B C D E F Dir. Rev.
Actuator
Side Mounted Handwheels
11 5.6 13.00 24.1 16.4 2.25 6A1 9 8.75 ------ --­ 13 5.6 15.00 29.6 20.1 2.25 6A2 12 10.88 ------ -----­ 15 5.6 17.50 35.3 25.4 3.31 6A3 18 15.00 ------ -----­ 18 5.6 20.75 36.8 26.8 3.31 18 (16") 5.6 20.75 42.1 33.2 3.75 8A 8 ------ 53 53 18 (20") 5.6 20.75 52.0 N/A 3.75 8A 8 ------ N/A 53 24 5.0 27.50 45.5 34.7 3.75 8A 12 ------ 53 58
Model 37/38 Pneumatic Spring Diaphragm Actuator | 7
Weights (lbs.)
Actuator
Size
Direct
Type 37
Reverse
Type 38
Side Mounted
Handwheel
Type Weight
11 45 55 6A1 19 13 70 87 6A2 45 15 120 140
18 180 250 18 (16*) 190 370 18 (20*) N/A 450
6A3 75
8A 40
24 325 540 8A 70
DIRECT SALES OFFICE LOCATIONS
BELGIUM Phone: +32-2-344-0970 Fax: +32-2-344-1123
BRAZIL Phone: +55-11-2146-3600 Fax: +55-11-2146-3610
CHINA Phone: +86-10-8486-4515 Fax: +86-10-8486-5305
FRANCE Courbevoie Phone: +33-1-4904-9000 Fax: +33-1-4904-9010
GERMANY Ratingen Phone: +49-2102-108-0 Fax: +49-2102-108-111
INDIA Mumbai Phone: +91-22-8354790 Fax: +91-22-8354791
New Delhi Phone: +91-11-2-6164175 Fax: +91-11-5-1659635
ITALY Phone: +39-081-7892-111 Fax: +39-081-7892-208
JAPAN Chiba Phone: +81-43-297-9222 Fax: +81-43-299-1115
KOREA Phone: +82-2-2274-0748 Fax: +82-2-2274-0794
MALAYSIA Phone: +60-3-2161-0322 Fax: +60-3-2163-6312
MEXICO Phone: +52-5-310-9863 Fax: +52-5-310-5584
THE NETHERLANDS Phone: +0031-15-3808666 Fax: +0031-18-1641438
RUSSIA Veliky Novgorod Phone: +7-8162-55-7898 Fax: +7-8162-55-7921
Moscow Phone: +7 495-585-1276 Fax: +7 495-585-1279
SAUDI ARABIA Phone: +966-3-341-0278 Fax: +966-3-341-7624
SINGAPORE Phone: +65-6861-6100 Fax: +65-6861-7172
SOUTH AFRICA Phone: +27-11-452-1550 Fax: +27-11-452-6542
Case Mounted Handwheel
Type
Actuator
Direct Actuator
2-11 11 25
2-13 13 25 3-15 15 4-18 18 6-18 18 (16*) 45
Reverse Actuator
9-11 11 20 9-13 13 25
SOUTH and CENTRAL AMERICA and the CARIBBEAN Phone: +55-12-2134-1201 Fax: +55-12-2134-1238
SPAIN Phone: +34-93-652-6430 Fax: +34-93-652-6444
UNITED ARAB EMIRATES Phone: +971-4-8991-777 Fax: +971-4-8991-778
UNITED KINGDOM Wooburn Green Phone: +44-1628-536300 Fax: +44-1628-536319
UNITED STATES Massachusetts Phone: +1-508-586-4600 Fax: +1-508-427-8971
Corpus Christi, Texas Phone: +1-361-881-8182 Fax: +1-361-881-8246
Deer Park, Texas Phone: +1-281-884-1000 Fax: +1-281-884-1010
Houston, Texas Phone: +1-281-671-1640 Fax: +1-281-671-1735
Size
Weight
40
* Trademark of G eneral Elect ric Company Other company names and product names used in this document are the registered trademarks or trade­marks of their respective owners.
GEA19531 05/2013
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