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DIAPHRAGM ACTUATORS – DIRECT ACTING 

DIMENSIONS IN INCHES AND MILLIMETERS 

NET WT. Lb/kg** 

SIZE 

DIAPHRAGM 

ACTUATOR 

MAX 

TRAV

EL 

J-J 

N-1 

N-2 

N-3 

ALUM. 

CAST 
IRON 

35 

in 

mm 

¾ 

19.0 

9-1/4 

235.0 

3-15/16 

100.0 

12-3/8 

314.3 

12-3/8 

314.3 

6-1/4 

158.8 

2-1/2 

63.5 

2-1/2 

63.5 

5-1/2 

139.7 

1-3/8 

34.9 

3-13/16 

96.8 

9/16 
14.3 

4-13/16 

122.2 

2.687 

68.2 

11/16 

17.5 

3/8-24 

¼ 

NPT 

20 lb 

9.1 kg 

35 lb 

15.9 kg 

55 

in 

mm 

1-1/2 

38.1 

12 

304.8 

5-1/16 

128.6 

15-1/4 

387.4 

15-1/4 

387.4 

177.8 

2-1/2 

63.5 

76.2 

5-1/2 

139.7 

1-3/8 

34.9 

3-13/16 

96.8 

9/16 
14.3 

4-13/16 

122.2 

2.687 

68.2 

25.4 

3/8-24 

¼ 

NPT 

23 lb 

10.4 kg 

50 lb 

22.7 kg 

55A 

in 

mm 

1-1/2 

38.1 

12 

304.8 

5-1/16 

128.6 

15-1/4 

387.4 

15-1/4 

387.4 

177.8 

2-1/2 

63.5 

76.2 

5-1/2 

139.7 

1-3/8 

34.9 

3-13/16 

96.8 

9/16 
14.3 

4-13/16 

122.2 

2.687 

68.2 

25.4 

½-20 

¼ 

NPT 

23 lb 

10.4 kg 

50 lb 

22.7 kg 

85 

in 

mm 

2-1/8 

54.0 

14-3/4 

374.7 

6-1/4 

158.8 

19-5/8 

498.5 

19-5/8 

498.5 

8-1/2 

215.9 

2-1/2 

63.5 

4-1/8 

104.8 

6-7/16 

163.5 

1-3/4 

44.5 

3-13/16 

96.8 

9/16 
14.3 

4-13/16 

122.2 

2.687 

68.2 

1-1/4 

31.8 

½-20 

¼ 

NPT 

43 lb 

19.5 kg 

96 lb 

43.5 kg 

85A 

in 

mm 

2-1/8 

54.0 

14-3/4 

374.7 

6-1/4 

158.8 

22-1/4 

565.2 

22-1/4 

565.2 

11-1/8 

282.6 

2-1/2 

63.5 

4-1/8 

104.8 

8-9/16 

217.5 

2-1/2 

63.5 

4-3/4 

120.7 

11/16 

17.5 

152.4 

3.500 

88.9 

1-5/16 

33.3 

¾-16 

¼ 

NPT 

48 lb 

21.8 kg 

116 lb 

52.6 kg 

85* 

in 

mm 

2-1/8 

54.0 

14-3/4 

374.7 

6-1/4 

158.8 

20-1/4 

514.4 

20-1/4 

514.4 

9-1/8 

231.8 

2-1/2 

63.5 

4-1/8 

104.8 

7-1/16 

179.4 

1-3/4 

44.5 

4-3/4 

120.7 

11/16 

17.5 

152.4 

3.500 

88.9 

1-5/16 

33.3 

½-20 

¼ 

NPT 

45 lb 

20.4 kg 

113 lb 

51.3 kg 

135 

in 

mm 

76.2 

18 

457.2 

228.6 

27-3/8 

695.3 

24-5/8 

625.5 

11-1/8 

282.6 

2-1/2 

63.5 

5-5/8 

142.9 

8-9/16 

217.5 

2-1/2 

63.5 

4-3/4 

120.7 

11/16 

17.5 

152.4 

3.500 

88.9 

1-15/16 

33.3 

¾-16 

3/8 

NPT 

104 lb 

47.2 kg 

187 lb 

84.8 kg 

135(1-1/4) 

Dia. Stem  

in 

mm 

76.2 

18 

457.2 

228.6 

27-3/8 

695.3 

24-5/8 

625.5 

11-1/8 

282.6 

2-1/2 

63.5 

5-5/8 

142.9 

8-9/16 

217.5 

2-1/2 

63.5 

5-3/4 

146.1 

11/16 

17.5 

177.8 

4.500 
114.3 

1-5/16 

33.3 

¾-16 

3/8 

NPT 

104 lb 

47.2 kg 

187 lb 

84.8 kg 

 

DIMENSIONS IN INCHES AND MILLIMETERS 

ACTUATOR 

SIZE 

MAX 

TRAVEL 

N-1 

N-2 

N-3 

NET 

WT** 

Lb/kg 

NET WT** 

W/H.O.D. 

lb/kg 

270 (in) 

270 (mm) 

76.2 

11-1/16 

281.0 

2-1/2 

63.5 

5-5/8 

142.9 

8-9/16 

217.5 

2-1/2 

63.5 

4-3/4 

120.7 

11/16 

17.5 

152.4 

3.500 

88.9 

1-5/16 

33.3 

¾-16 

NPT 

210 lb 

95.3 kg 

225 lb 

102.1 kg 

Table 4 - Direct Acting Actuators Dimensions 

*Mounting Flange Dimensions same as 135 ( R) Yoke. 
** Approximate 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание 135

Страница 1: ...BLY 4 DIRECT ACTUATOR HOD REASSEMBLY 4 REVERSE ACTUATOR DISASSEMBLY 10 REVERSE ACTUATOR REASSEMBLY 10 REVERSE ACTUATOR HOD DISASSEMBLY 10 REVERSE ACTUATOR HOD REASSEMBLY 11 TROUBLESHOOTING 16 ILLUSTRATION INDEX FIGURE 1 DIRECT DIAPHRAGM ACTUATOR HOD 6 FIGURE 2 EXTERNAL VIEW OF DIRECT ACTING DIAPHRAGM ACTUATOR 8 FIGURE 3 REVERSE DIAPHRAGM ACTUATOR HOD 12 FIGURE 4 DISENGAGING HANDSCREW DISC FROM NUT...

Страница 2: ... equipment about 1 diameter of thread 3 Connect air supply to bottom of actuator and allow actuator to come to rest on valve stem Secure actuator to stem 4 See stroke adjustments section for final setting of actuator Setting Actuator Stroke 1 Apply air to either bottom Reverse or top Direct of actuator and note the total travel distance of actuator 2 To adjust stroke of actuator retract actuator s...

Страница 3: ...actuator Unscrew actuator from equipment shaft by either spinning actuator or unscrewing the shaft NOTE If actuator is mounted to a valve the valve shaft must not be turned unless valve plug is lifted off valve seat 5 Remove all air pressure from actuator and unload spring tension by grasping actuator stem with a wrench and unscrewing spring adjustment nut 40 see Fig 3 6 Actuator is now ready for ...

Страница 4: ...0 15 20 55 30 36 15 20 85 30 36 15 20 135 45 50 15 20 Table 2 Torque Values ft lbs Size 1 5 17 35 15 20 2 5 50 80 55 55A 85 85A 15 20 2 5 50 80 135 30 36 2 5 50 80 Table 3 Torque Values Hand Operating Device ft lbs Direct Actuator HOD Disassembly see Fig 1 1 Remove nut 1 lock washer 2 and handwheel 3 2 Remove packing gland 5 packing ring s 6 washer 7 and O Ring 8 from bonnet 9 3 Screw handscrew 4 ...

Страница 5: ...5 from turning due to vibration etc install bonnet 9 on upper diaphragm case 4 Place handwheel 3 over stem Install lock washer 2 and tighten nut 1 5 Reinstall HOD assembly on actuator ...

Страница 6: ...6 Figure 1 Direct Diaphragm Actuator HOD ...

Страница 7: ...7 DIRECT ACTING PARTS LIST ...

Страница 8: ...8 Figure 2 External View of Direct Acting Diaphragm Actuator ...

Страница 9: ... 3 4 374 7 6 1 4 158 8 22 1 4 565 2 22 1 4 565 2 11 1 8 282 6 2 1 2 63 5 4 1 8 104 8 8 9 16 217 5 2 1 2 63 5 4 3 4 120 7 11 16 17 5 6 152 4 3 500 88 9 1 5 16 33 3 16 NPT 48 lb 21 8 kg 116 lb 52 6 kg 85 in mm 2 1 8 54 0 14 3 4 374 7 6 1 4 158 8 20 1 4 514 4 20 1 4 514 4 9 1 8 231 8 2 1 2 63 5 4 1 8 104 8 7 1 16 179 4 1 3 4 44 5 4 3 4 120 7 11 16 17 5 6 152 4 3 500 88 9 1 5 16 33 3 20 NPT 45 lb 20 4...

Страница 10: ... yoke 34 Insert cap screws 23 through holes in diaphragm lower case 21 and stem seal 29 and tighten as described below 4 In 55R and 85R actuators install stem seal 29 and seal ring 27 and torque per Table 2 What about the base plate 5 In 135R actuator install stem seal 29 and collar 31 over actuator stem 35 in yoke 34 Install lower diaphragm base 21 to yoke 34 Insert studs and nuts 24 through hole...

Страница 11: ...onnet threads 2 Insert diaphragm case 14 making sure that handscrew disc assembly is engaged to diaphragm nut 8 see Fig 4 3 Tighten nuts and bolts 18 19 see Fig 3 into upper diaphragm case 14 4 Screw handscrew 4 up through bonnet 7 5 Place handwheel 3 over stem Install lockwahser 2 and tighten nut 1 Act Size see Fig 1 Lower Dia Casing Bolts 23 24 Upper Dia Casing Bolts 18 19 35R 15 20 15 20 55R 55...

Страница 12: ...12 Figure 3 Reverse Diaphragm Actuator HOD ...

Страница 13: ...13 Figure 4 Disengaging Handscrew Disc from Nut Figure 5 External View of Reverse Acting Diaphragm Actuator ...

Страница 14: ...7 8 606 4 19 3 8 492 1 6 1 4 158 8 9 3 16 233 4 2 1 2 63 5 4 1 8 104 8 4 15 16 125 4 2 1 4 57 2 4 3 4 120 7 11 16 17 5 6 152 4 3 500 88 9 1 5 16 33 3 20 NPT 120 lb 54 4 kg 56 lb 25 4 kg 85AR in mm 2 1 8 54 0 14 3 4 374 7 25 7 8 657 2 21 3 8 542 9 6 1 4 158 8 11 1 8 282 6 2 1 2 63 5 4 1 8 104 8 5 9 16 141 3 3 1 8 79 4 4 3 4 120 7 11 16 17 5 6 152 4 3 500 88 9 1 5 16 33 3 16 NPT 123 lb 55 8 kg 59 lb...

Страница 15: ...15 REVERSE ACTING PARTS LIST ...

Страница 16: ... seal leakage by using a leak detect solution Make sure you also check the stem boot seal for reverse acting actuators Replace seals as necessary When air is removed from the actuator the actuator does not return to either the open or closed position Check for blockage in equipment Check for a broken spring An air control signal is being sent to the actuator but the actuator does not fully stroke ...

Страница 17: ... system designer and user retain final responsibility Designer should consider applicable Codes material compatibility product ratings and application details in selection and application Improper selection application or use of products described herein can cause personal injury or property damage If designer or user intends to use product for an application or use other than originally specified...

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