GE Valve Actuators Technical Specifications

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