GE Oil & Gas
Technical Specifications
05/2013
Masoneilan* Valves
87/88 Pneumatic Multi-Spring
Diaphragm Actuators
Actuator air action can be changed in
the field for increased flexibility and
reduced inventory.
Numbering System
2nd1st
8
Actuator Type
87 Air to Close
88 Air to Open
Handwheel
2 | GE Oil & Gas
Direct: Air to
Extend Stem
Type 87
Reverse: Air to
Retract Stem
Type 88
Actuator
Size
6 0.8 20 60 4.1 5
10 1.5 38 60 4.1 9
16 2.5 63 60 4.1 17
23 2.5 63 60 4.1 25
Maximum Travel Equivalent Air Supply
Inches (mm) psi (bar)
Number
of Turns
Specifications
Bench ranges available: 3-15, 6-30, 11-23, 21-45 for all actuator sizes
Actuator
Size
6 60 387 0.8 20 60 4.1
10 100 645 0.8 / 1.5 20 / 38 60 4.1
16 160 1032 0.8 / 1.5 / 2.0 / 2.5 20 / 38 / 50 / 63 60 4.1
23 230 1484 0.8 / 1.5 / 2.0 / 2.5 20 / 38 / 50 / 63 60 4.1
Diaphragm Effective Area Stem Travel Max Supply
sq. in. sq. cm. (inches) mm (psi) (bar
Standard Springs
Actuator Size 6, 10, 16, and 23
Spring Type Spring Qty Placement
3-15 3 Lower Level
6-30 6 Lower Level
11-23 3 Upper Level
21-45 6 Upper Level
Air Connections
Standard: 1/4" NPT - Size 6, 10 1/2" NPT - Size 16, 23
Optional: 1/2" NPT - Size 6, 10
CR8788 - 87/88 Pneumatic Multi-Spring Diaphragm Actuators 3
Materials
Size 6 Actuator
Size 10 Actuator
with Optional Handwheel
4 | GE Oil & Gas
Size 16 Actuator Air to Close (Model 87)
Size 16 Actuator Air to Open
(Model 88)
Materials
Model 87 - Down Stop
Optional Adjustable Limit Stop
Model 88 - Down Stop
Optional Adjustable Limit Stop
Model 87 - Up Stop
Optional Adjustable Limit Stop
Model 88 - Up Stop
Optional Adjustable Limit Stop
Size 23 Actuator with Optional Handwheel
CR8788 - 87/88 Pneumatic Multi-Spring Diaphragm Actuators 5
Materials
Parts Reference for Actuator Sizes 6,10,16 and 23
Ref
No.
1 Lock Nut Carbon Steel
2 Stem Connector-Bottom Carbon Steel, Zinc Plate
3 Cap Screw-Pointer Carbon Steel
4 Stem Connector-Top Carbon Steel, Zinc Plate
5 Cap Screw-Connector Carbon Steel
6 Connector Insert Carbon Steel, Zinc Plate
7 Pointer Stainless Steel
8 Screw-Pan Head Carbon Steel
9 Scale-Travel Stainless Steel
10 Actuator Stem Stainless Steel
11 Stem Wiper Polyurethane
12 Oring Buna-N
13 Oring Buna-N
14 Spacer Carbon Steel, Zinc Plate
15 Seal Washer Steel & Rubber
16 Cap Screw-Yoke Carbon Steel
17 Lower Diaphragm Case Carbon Steel
18 Spring Spacer Carbon Steel
19 Hex Nut Carbon Steel
20 Cap Screw-Hex Head Carbon Steel
21 Spring Carbon Steel
22 Washer Flat Carbon Steel
23 Nut-Jam Carbon Steel
24 Upper Diaphragm Case Carbon Steel
25 Diaphragm Buna-N/Polyester
26 Diaphragm Plate Aluminum Alloys
27 Cap Screw-Comp Carbon Steel
28 Compression Nut Carbon Steel
29 Spring Guide Carbon Steel
30 Bushing PTFE/Steel
31 Yoke Cast Iron
32 Lock Nut Carbon Steel
33 Pivot Pin Carbon Steel, Zinc Plate
34 Thrust Bearing Carbon Steel
35 Retaining Ring Carbon Steel
Description Material
Ref
No.
36 HW Pivot Carbon Steel
37 Bearing Ring Carbon Steel
38 Retaining Ring Carbon Steel
39 HW Stem Carbon Steel, Zinc Plate
40 Traveling Nut Leaded Steel
41 Handwheel Cast Iron
42 Washer-Flat Carbon Steel
43 HW Limitation Nut Carbon Steel, Zinc Plate
44 HW Lever Carbon Steel
45 Lever Pin Carbon Steel, Zinc Plate
46 Retaining Ring-Lever Pin Carbon Steel
57 HW Cover Carbon Steel
59 Vent Plug Carbon Steel
60 Pipe Fitting Carbon Steel, Zinc Plate
63 Information Label Vinyl
67 Warning Label Vinyl
68 Warning Label Vinyl
69 Warning Label Vinyl
71 Travel Stop Carbon Steel, Zinc Plate
80 Upper Diaphragm Case Carbon Steel
81 Stem Extension Stainless Steel
82 Lock Nut Stainless Steel
83 Limit Stop Stainless Steel
84 Bushing Steel/ PTFE Lined
85 Oring Buna-N
86 Stopper Stainless Steel
87 Stopper Carbon Steel
88 Plate-Rotation Arrow Stainless Steel
90 Pivot Pin-HW Lock Carbon Steel, Zinc Plate
91 Handwheel Lock Pin Stainless Steel
92 Information Plate-HW Vinyl
93 Cap Screw-Hex Head Carbon Steel
94 Washer-Flat Carbon Steel
96 End Flange Carbon Steel, Zinc Plate
97 Cap Screw-HW Stem Carbon Steel
Description Material
6 | GE Oil & Gas
Dimensions and Weights (U.S.)
XX
D
C
Shown with optional Handwheel
Dimensions and Weights
Actuator Dimensions (inches)
Weights (lbs.)
Actuator Size
A B (Model 88) C D
Standard w/Handwheel
6 11.50 15.54 (17.52) 10.00 9.00 45 60
10 14.50 19.58 (21.54) 10.90 12.00 85 105
16 18.75 28.22 (30.79) 14.00 18.00 210 245
23 21.63 30.71 (33.27) 16.00 18.00 265 320
Actuator Removal Clearance = 6 inches
Center of Gravity (inches)
Without Handwheel
Size X
6 .19 9.75
10 .0 12.88
16 .13 18.50
23 .06 21.13
With Handwheel
Size
6 1.25 9.13
10 0.88 12.00
16 1.38 16.75
23 1.38 19.00
XX
YY
Y
Limit Stops (inches)
Up Stop
Size Model
Overall Height B
6 19.45
10
16 36.42
23 38.84
6 19.16
10
16 35.48
23 38.65
Down Stop
Size Model
25.43
87
25.06
88
Overall Height B
6 19.80
10
16 37.20
25.98
87
YY
23 39.90
6 19.74
10
16 37.46
23 40.33
CR8788 - 87/88 Pneumatic Multi-Spring Diaphragm Actuators 7
25.85
88
Dimensions and Weights (Metric)
XX
D
C
Shown with optional Handwheel
Dimensions and Weights
Actuator Dimensions (mm)
Weights (kg)
Actuator Size
A B (Model 88) C D
Standard
6 302 395 (445) 254 229 20 27
10 373 497 (547) 277 305 39 48
16 476 717 (782) 356 457 95 111
23 549 780 (845) 406 457 120 145
Actuator Removal Clearance = 127 MM
Center of Gravity (mm)
Without Handwheel
Size
X
6 5 248
10 0 327
16 3 470
23 2 537
With Handwheel
Size
6 32 232
10 22 305
16 35 425
23 35 483
XX
Y
YY
Limit Stops (mm)
Up Stop
Size
Model
6 494
10
16 925
23 987
6 487
10
16 901
23 982
Down Stop
Size
646
87
636
88
Model
6 503
10
16 945
660
87
YY
w/Hand-
wheel
Overall Height B
Overall Height B
8 | GE Oil & Gas
23 1014
6 501
10
16 952
23 1024
657
88
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Fax: +1-281-671-1735
* Masoneil an is a register ed trademar k of the General El ectric Comp any.
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.
GEA19711 05/2013
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