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Refrigerating Specialties Division

9

A4B
A4S
A4Z
A4D

OVERALL VALVE DIMENSIONS

Port Size

20mm & 25mm

32mm

40mm & 50mm

65mm

75mm

100mm

(3/4 & 1 ")

(1-1/4")

(1-5/8 & 2")

(2-1/2")

(3")

(4")

    DIMENSION

mm

inches

mm

inches

mm

inches

mm

inches

mm

inches

mm

inches

A4 Basic

392

15.4

410

16.1

464

18.2

483

19.0

597

23.5

653

25.7

A

A4R

241

9.5

254

10.0

307

12.1

325

12.8

432

17.0

478

18.8

A4S, B, Z

392

15.4

410

16.6

484

16.2

483

19.0

597

23.5

653

25.7

A4D

429

16.9

447

17.6

500

19.7

513

20.2

632

24.9

685

27.0

B

148

5.8

162

6.3

177

6.9

181

7.1

273

10.7

292

11.5

C

164

6.2

203

8.0

251

9.9

252

9.9

311

12.2

359

14.1

H

117

4.6

117

4.6

140

5.5

159

6.2

176

7.0

222

8.8

J

98

3.9

178

7.0

251

9.9

314

12.4

314

12.4

363

14.3

K

112

4.4

112

4.4

117

4.6

124

4.9

142

5.6

157

6.2

L

122

4.8

122

4.8

135

5.3

133

5.2

122

4.8

152

6.0

M

138

5.4

138

5.4

140

5.5

150

5.9

170

6.6

190

7.7

OVERALL LENGTH DIMENSIONS WITH FLANGE

FPT & SW

3/4"

216

8.5

1-1/4"

256

10.1

1-1/2"

307

12.1

D*

FOR PIPE

1"

216

8.5

1-1/2"

256

10.1

2"

307

12.1

2-1/2"

331

13.0

3"

389

15.3

4"

450

17.7

SIZES

1-1/4"

216

8.5

WN FOR

3/4"

254

10.0

1-1/4"

300

11.8

1-1/2"

364

14.3

E*

FOR PIPE

1"

261

10.3

1-1/2"

304

12.0

2"

371

14.6

2-1/2"

401

15.8

3"

478

18.8

4"

571

22.5

SIZES

1-1/4"

261

10.3

ODS FOR

7/8"

239

9.4

1-3/8"

269

10.6

1-5/8"

358

14.1

2-5/8"

348

13.7

3-1/8"

414

16.3

F*

TUBE

1-1/8"

239

9.4

1-5/8"

279

11.0

2-1/8"

338

13.3

4-1/8"

503

19.8

SIZES

1-3/8"

231

9.1

2-1/8"

305

12.0

2-5/8"

358

14.1

3-1/8"

389

15.3

3-5/8"

432

17.0

1-5/8"

239

9.4

H

K

L

A4D
Only

E

F

Weld Neck
Flange

ODS
Flange

B

C

D

A

(A4S,

A4B,
A4Z)

J
Add for Strainer

FPT
SW

A

(A4D)

VALVE

 FPT FLANGES

                          WELDING FLANGES

 FLANGES

SIZE

Nominal

Sock Weld

Weld Neck

Flange Package

Tubing

Fitting

Nom.

Flange

Pipe Size

Socket I.D.

Neck O.D.

Number(2/Pkg)

O.D.

I.D.

Flge Pkg.

Pipe Size

Pkg. No.

Socket

Weld

No. (2/Pkg)

mm

Inches

Inches

(2/Pkg)

Inches NW No. Inches

mm

Inches

mm

Weld

Neck

Inches

mm

Inches

mm

20

3/4

3/4

200016

3/4

20

1.070

27.81

1.050

26.67

200020

200023

1-1/8

28.57

1.130

28.70

200027

and

and

1

200017

1

25

1.365

34.67

1.315

33.40

200021

200024

1-3/8

34.92

1.380

33.05

200028

25

1

1-1/4

200018

1-1/4

32

1.705

43.31

1.660

42.16

200022

200025

1-5/8

41.27

1.631

41.43

200029

1-1/4

200030

1-1/4

32

1.705

43.31

1.660

42.16

200032

200034

1-3/8

34.92

1.380

35.05

200036

32

1-1/4

1-1/2

200031

1-1/2

40

1.930

49.02

1.900

48.26

200033

200035

1-5/8

41.27

1.631

41.43

200037

2-1/8

53.97

2.131

54.13

200038

40

1-5/8

1-1/2

200039

1-1/2

40

1.930

49.02

1.900

48.26

200041

200043

1-5/8

41.27

1.631

41.43

200045

and

and

2

200040

2

50

2.445

62.10

2.375

60.33

200042

200044

2-1/8

53.97

2.131

54.13

200046

50

2

2-5/8

66.67

2.631

66.83

200047

65

2-1/2

2-1/2

200048

2-1/2

65

2.945

2.875

73.03

200049

200050

2-5/8

66.67

2.631

66.83

200051

3-1/8

79.37

3.131

79.53

200052

75

3

3

200053

3

80

3.575

90.81

3.500

88.90

200054

200055

3-1/8

79.37

3.131

79.53

200056

3-5/8

92.07

3.631

92.23

200057

100

4

4

200062

4

100

4.575

116.20

4.500

114.30 200063

200064

4-1/8

104.77

4.132

104.95

200065

  

FPT: Internal NPT (USA Standard Taper Pipe Thread).

NW: Metric equivalent nominal size for steel tubing.

Metric copper tubing used for refrigeration.

ODS connections to fit copper tubing of given outside
d

iameter. (Not for use with ammonia)

Definitions:
ODS - Outside Diameter Sweat
I.D. - Inside Diameter
O.D. - Outside Diameter
N.A. - Not Available

Flange Bolt Torque Requirements

Bolt Diameter

Valve Port Size

Torque

11mm (7/16")

13mm (1/2 ")

3.9 mkg (28 ft lb)

16mm (5/8")

20-50mm (3/4 "- 2")

11.8 mkg (85 ft lb)

19mm (3/4")

65-75mm (2-1/2 "- 3")

14.5 mkg (105 ft lb)

22mm (7/8")

100mm (4")

22.1 mkg (150 ft lb)

FLANGES

Содержание ADAPTOMODE A4AS-DN

Страница 1: ... C 50 F to 220 F Principles of Operation See Fig 1 The inlet pressure enters the space under the diaphragm through passage N When the force created by the pressure exceeds the force of the range spring the diaphragm is lifted off the pilot seat allowing pressure to enter on top of the power piston This causes the power piston to move downward forcing the modulating plug to open and modulate to mai...

Страница 2: ...ng the regulator function i e not regulating However in the wide open mode the regulator will still require the 0 14 bar 2 psi minimum pressure drop When the solenoid is de energized the valve functions as an Inlet Pressure Regulator Purpose The Type A4AB frequently is used with the wide open function where maximum refrigeration capacity from an evaporator is required During the defrost of the eva...

Страница 3: ...Refrigerating Specialties Division 3 BASIC ADAPTOMODE FUNCTIONS Fig 2 A4AZ Fig 3 A4AS Fig 4 A4AB Fig 5 A4AD ...

Страница 4: ...4A Regulators General Procedure The construction of the regulator and the method of disassembly are relatively simple but some procedures must be followed to avoid damage The following describes the procedure for the basic A4A special instructions for other types are included in other appropriate sections Disassembly Take care when removing Seal Caps 1 and 44 in case some refrigerant may be trappe...

Страница 5: ...e Port Pipe Plug 28 Adapter Body 29 Gasket Body 30 Piston Stem 31 Screw Body 32 Body 33 Throttling Plug Asm 34 Spring Closing 35 Dirt Wiper Retainer 36 Dirt Wiper 37 Seal Bottom Cap 38 Bottom Cap 39 Screw Bottom Cap 40 Packing Washer 41 Packing Ring 42 Stuffing Box Nut 43 Gasket Seal Cap 44 Seal Cap 45 Gasket Flange 46 Bolt Flange 47 Nut Flange 48 Pilot Body 49 Screw Pilot Body 50 O Ring 51 Moduda...

Страница 6: ...odular Solenoid Pilot Figs 10 and 12 This solenoid pilot may be mounted on either Pad 1 or 2 depending on the function desired see pages 2 and 3 Before working on any Fig 11 A2D2 A2D MODULAR PRESSURE PILOT A2D2 Port Sizes 20 50mm 3 4 2 A2D Port Sizes 65 100mm 2 4 1 2 3 4 5 6 11 8 9 10 12 13 14 15 16 17 18 19 48 49 50 solenoid pilot make sure the coil is de energized and will remain so during the s...

Страница 7: ...1 440 60 Yellow Red leads 0 39 0 13 1 115 50 Yellow Blue leads 1 22 0 21 1 230 50 Yellow leads 0 65 0 26 1 Other Contact Factory On transformer coil the 6 volt leads are always black Fig 12 S6A MODULAR SOLENOID PILOT A2D MODULAR PRESSURE PILOT MODUPLATE Safe Operation See also Bulletin RSBCV People doing any work on a refrigeration system must be qualified and completely familiar with the system a...

Страница 8: ...It Range D make sure has 2 open ruptured or badly deformed diaphragms Diaphragm follower stuck damaged or frozen Clean or replace Install follower carefully A4AS A4AB Modular Solenoid Pressure drop across valve too high over 21 bar 300 psig Lower pressure Pilot not opening drop Improper power supply Correct Replace solenoid coil Piston worn too much clearance Replace piston Check for reason If use...

Страница 9: ...Flange Pipe Size Socket I D Neck O D Number 2 Pkg O D I D Flge Pkg Pipe Size Pkg No Socket Weld No 2 Pkg mm Inches Inches 2 Pkg Inches NW No Inches mm Inches mm Weld Neck Inches mm Inches mm 20 3 4 3 4 200016 3 4 20 1 070 27 81 1 050 26 67 200020 200023 1 1 8 28 57 1 130 28 70 200027 and and 1 200017 1 25 1 365 34 67 1 315 33 40 200021 200024 1 3 8 34 92 1 380 33 05 200028 25 1 1 1 4 200018 1 1 4 ...

Страница 10: ...G 40 3 42 4 1 61 L ADAPTER 2 A4A DN DUCTILE IRON GGG 40 3 COVER BOTTOM A4A S4A 1 5 8 to 2 1 2 DUCTILE IRON GGG 40 3 BONNET A4W DUCTILE IRON GGG 40 3 COMPONENT DESCRIPTION MATERIAL Kv VOLUME BODY 2 1 2 A4A DN DUCTILE IRON GGG 40 3 60 3 19 L ADAPTER 3 A4A DN DUCTILE IRON GGG 40 3 COVER BOTTOM 3 A4A S4A DUCTILE IRON GGG 40 3 BONNET A4W DUCTILE IRON GGG 40 3 COMPONENT DESCRIPTION MATERIAL Kv VOLUME BO...

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