METRIC PRECISION ORIFICES AND MINIATURE CHECK VALVES

MONROE, CT USA

METRICPRECISION ORIFICES

ANDMINIATURE

CHECK VALVES

ZMNVC

ZMNS US - INSERT

ZMC

CATALOG MD-1

IB - INSERT

Controls Co.O’Keefe

® ®

ZM

P.O.BOXQ•TRUMBULL,CTUSA06611•PHONE(203)261-6711•TOLLFREEPHONE(800)533-3285•FAX(203)261-8331©O'KEEFECONTROLSCO.•2008ALLRIGHTSRESERVED [email protected]•websitewww.okcc.com

Part Number SyStem tyPe Orifice thread Zm — SiZe NO. — SiZe — LeNgth NO. — materiaL

descriptionSet screw style threaded orifice inserts can be installed in fittings, manifolds or custom parts to establish flow rates of liquids or gases. Standard size orifices range from .10 mm to 1.60 mm.

thread Size m3 x .5 mm 4-35 hex Size 4 mm 4 1.5 mm



thread Size m6 x 1.0 mm 4-63 hex Size 8 mm 8 3.0 mm



ExamplES tyPe SiZe NO. thread SiZe LeNgth NO. materiaL1. Zm — 10 — m3 — 4 — SS (Type ZM) (.26 mm diameter) (4 mm length) (Stainless Steel)2. Zm — 31 — m6 — 8 — SS (Type ZM) (.79 mm diameter) (8 mm length) (Stainless Steel)

*Consult factory for larger orifice sizes.

type Zm

Bidirectional FlowThread Size

OrificeInternalHEX

Length

Metal Orifice AssembliesMETRIC THREADED INSERTS

SS18-8 SS

Standard Sizes Orifice StandardSize Length Size dia.* range thread Size mm No. No. mm.

4 .10 5 .13 6 .15 7 .18 8 .20 9 .23 10 .26 11 .28 12 .31 13 .33 14 .36 15 .38 16 .41 17 .43 18 .46 19 .48 20 .51 21 .53 22 .56 23 .58 24 .61 25 .63 26 .66 27 .69 28 .71 29 .74 31 .79 32 .81 33 .84 35 .89 37 .94 38 .97 39 .99 40 1.02 41 1.04 42 1.07 43 1.09 47 1.19 52 1.32 55 1.40 60 1.52 63 1.60

2


type ZmNS

Part Numbers

construction

Metal Orifice Assemblies

threadm3.5 x 0.6

4-31

threadm5 x 0.8

4-52

threadm6 x 1

4-81

threadm8 x 1.25

4-94

hex

AB

C

th'dO-ring

installationSeal against flat smooth surface

O-Ring Type ZMNS

MaximumOpening Ø

th'd a b c hex M3.5 7.87 1.97 2.29 2

M5.0 10.8 2.57 3.10 2.5

M6.0 12.7 3.81 4.45 3

M8.0 16.3 4.83 5.59 4

METRIC THREADED INSERTS - NOSE SEALS

descriptionThis type precision orifice includes an o-ring for sealing against a flat surface. The set screw style can be installed in fittings, manifolds and custom parts for accurate flow rate control of liquids or gases.

Specificationsthread Sizes – M3.5 x 0.6, M5 x 0.8, M6 x 1, and M8 x 1.25. flow direction – Suitable for flow in either direction. flow – See flow chart for air flow on last page.

KV range – .00030 to .171 OrificeDiameterAccuracy – ± .013 mm

fluid media – Air, Water, Gases and Liquids compatible with materials of construction.

dimensions – See drawings this page.

materials of construction – Brass or 303 SS Body. Fluorocarbon or Nitrile O-ring maximum Operating Pressure – 1400 kPa maximum Operating temperature – Nitrile O-ring 70 oC. Fluorocarbon O-ring 166 oC.

The complete part number for an orifice assembly includes Type, Size Number, Thread Size, Body Material and O-Ring Material. BN - Nitrile V - FluorocarbonExamplES Size thread body Part type Number Size material O-ring Number ZMNS 10(.26 mm) M3.5 BR (Brass) BN ZMNS-10-M3.5-BR-BN ZMNS 20(.51 mm) M6 SS (303 SS) V ZMNS-20-M6- SS-V

Thread Maximum Opening Ø

M3.5 1.20 M5.0 1.57 M6.0 2.41 M8.0 3.18

Dimensions - mm

Dimensions - mm

Orifice Size Size dia. Number Number (mm) range 4 .10 5 .13 6 .15 7 .18 8 .20 9 .23 10 .26 11 .28 12 .31 13 .33 14 .36 15 .38 16 .41 17 .43 18 .46 19 .48 20 .51 21 .53 22 .56 23 .58 24 .61 25 .63 26 .66 27 .69 28 .71 29 .74 31 .79 32 .81 33 .84 35 .89 37 .94 38 .97 39 .99 40 1.02 41 1.04 42 1.07 43 1.09 47 1.19 52 1.32 55 1.40 60 1.52 63 1.60 67 1.70 70 1.78 73 1.85 76 1.93 79 2.01 81 2.06 86 2.18 89 2.26 94 2.39

3


Orifice Size Size dia. Number Number mm range

4 .10 5 .13 6 .15 7 .18 8 .20 9 .23 10 .26 11 .28 12 .31 13 .33 14 .36 15 .38 16 .41 17 .43 18 .46 19 .48 20 .51 21 .53 22 .56 23 .58 24 .61 25 .63 26 .66 27 .69 28 .71 29 .74 31 .79 32 .81 33 .84 35 .89 37 .94 38 .97 39 .99 40 1.02 41 1.04 42 1.07 43 1.09 47 1.19 52 1.32 55 1.40 60 1.52 63 1.60 67 1.70 70 1.78 73 1.85 76 1.93 79 2.01 81 2.06 86 2.18 89 2.26 94 2.39 96 2.44 100 2.54 104 2.64 109 2.77 113 2.87 120 3.05 125 3.18

4

INSERTS

Metal Orifice AssembliesdescriptionThe inserts shown on this page are designed to press-fit into openings accurately machined in fittings, manifolds and custom parts. There is a choice of insert sizes and materials of construction.

applicationsThe inserts can be used with a wide variety of fittings by accurately machining the inside of the fitting. The orifice is then pressed into the fitting for control of the flow rate of liquids or gases.Manifolds or other custom assemblies that require flow rate control of fluids can be accurately machined to press fit the orifices shown on this page and on page 5.

GeneralSpecificationsmaximum Operating Pressure Insert Only (see exceptions) Brass – 13,790 kPag 303SS – 27,580 kPag 316SS – 27,580 kPag exceptions IAS, US Maximum Differential Pressure – 700 kPadflow – See flow chart for air flow on page 7.

OrificeDiameters – .10 mm to 3.18 mm. See chart at right. Consult factory for other sizes.

OrificeDiameterAccuracy – ±.013 mm

KV range – .0003 to .32 - See page 7.

fluid media – Air, Water, Gases and Liquids compatible with materials of construction.

dimensions – See drawings in right hand column of this page and on page 5.

Press fit – See drawings in right hand column of this page and on page 5.

materials Type IA, AM, IF – Brass or 303 SS Type IAS – Brass, 304 SS Screen Type I B, I E, I J – 303 SS I K, U Type IL – Brass Type IC, I D – 316 SS Type US – 303 SS, 304 SS Screen

custom insertsWhere quantity requirements exceed 1000 pieces, custom inserts can be manufactured in brass, stainless steel, or special materi-als to the dimensions required. Provide a dimension drawing, material specifica-tions, and quantities to our technical service department to obtain price and delivery quotations.

type am4-35

type ia4-63

type iaS4-35

type ib4-25

type ic4-63

type id4-125

type ie4-35

type if4-63

type i J4-125

type iK4-20

type iL4-35

type u4-63

type uS4-35

cONStructiON

6.35

3.18

2.40 / 2.41 Dia.2.21 / 2.26 Dia.

Press Fit Into Bore 2.36 / 2.39 Dia.

type ib

type iaS

cONStructiONPress Fit Into 6.50 / 6.53 Dia.

6.55 / 6.58 Dia.

3.96

Integral Screen

type ia

cONStructiONPress Fit Into 6.50 / 6.53 Dia.

6.55 / 6.58 Dia.

3.96

type am

cONStructiON

dimeNSiONSmm

Press Fit Into 3.20 / 3.22 Dia.

3.68 Dia. 3.25 / 3.28 Dia.

7.014.98

dimeNSiONSmm

dimeNSiONSmm

dimeNSiONSmm

dimeNSiONSmm


5Metal Orifice AssembliesINSERTS

Part NumbersThe complete part number for an orifice assembly includes Type, Size Num-ber, Body Material and Options.

ExamplES Size body Part type Number material Options Number IB 6 (.15 mm) SS – IB-6-SS

AM 10 (.26 mm) SS – AM-10-SS

IA 20 (.51 mm) Brass – IA-20-BR

OrificeDiametersSee chart on page 4 for sizes available for each insert type. Consult factory for other sizes.

flow directionMetal orifice assemblies can be used for flow in either direction. The data on page 7 is for a flow direction as shown in the right column on page 4 and throughout this page.

type uPress Fit Into

7.10 / 7.12

cONStructiON

7.11

19°

7.147.15

Dia.

type iJPress Fit Into

9.61 / 9.64

cONStructiON

6.86

9.659.66 Dia.

10-32 Thread

type iePress Fit Into

3.12 / 3.14

cONStructiON

3.153.18 Dia.

type idPress Fit Into 10.48 / 10.50

cONStructiON

11.2

10.5110.52 Dia.

type ifPress Fit Into

6.29 / 6.31

cONStructiON

6.86

10-32 Thread

6.326.34 Dia.

type iKPress Fit Into

1.54 / 1.55

cONStructiON

1.57

.79 Spherical R.

1.561.58 Dia.

cONStructiON

type iLPress Fit Into

2.49 / 2.51

2.03

Dia.2.532.54

type uSPress Fit Into

7.10 / 7.12

cONStructiON

Dia.

Screen Both Ends

7.157.18

5.84

type ic

cONStructiON4.83

3.18

4.67 / 4.72 Dia.

Press Fit Into Bore 4.84 / 4.85 Dia.

4.80 / 4.91 Dia.

dimeNSiONSmm

dimeNSiONSmm

dimeNSiONSmm

dimeNSiONSmm dimeNSiONS

mm

dimeNSiONSmm

dimeNSiONSmm dimeNSiONS

mm

dimeNSiONSmm1.52


descriptionThis miniature check valve line em-ploys a free floating stainless steel or elastomeric ball, which allows free flow in one direction; reverse flow is pre-vented. The valves are suitable for air, water, inert gases, light oil and liquids compatible with the materials of con-struction. The valves are fast acting and are suitable for long life applications.

features• All metal construction option• Long life operation• Low cost

Symbol-check Valve

FREE FLOW

GeneralSpecificationsmaterials of construction Body – Brass or 303 SS Ball Stop – Brass or 303 SS Ball – Nitrile (B), Fluorocarbon (V) or 440C Stainless Steel (SS) M3.5 - SS M5 - SS or B M6 - SS or V M8 - SS, B, or Vmaximum temperature Nitrile – 70°C Fluorocarbon - 166°Cmaximum Operating Pressure Type ZMC Brass – 3500 kPa (SS Ball) SS – 7000 kPa (SS Ball) Type ZMNBC, ZMNVC 1400 kPa Seat Leakage SS Ball 20 sccm (max) air flow at 175 kPa Nitrile or Fluorocarbon Ball 0 sccm @ 350 kPa (air flow) <5 sccm @ 175 kPa (air flow)FlowCapacity(airflow)

thread Sealant For type ZMC straight threads use Loctite 542 thread sealant or equal.

Check ValvesMETRIC ECONOMY LINE

Part NumbersThe complete part number for an orifice assembly includes Type, Fixed Numbers, Thread Size, Body/Ball Stop Material and Ball Material. (Fixed Numbers are the valve body orifice and differential pressure above which the valve will allow flow in the free flow direction.)ExamplES

typethread

Sizebody/

ball Stop ball materialPart Number

ZMC(no nose seal)

M3.5 BR (Brass)

SS (440C)

ZMNBC(nose seal-Nitrile)

M5 SS (303 SS)

B (Nitrile)

ZMNVC(nose seal -

Fluorocarbon)

M6 BR (Brass)

V (Fluorocarbon)

ZMC(no nose seal)

M8 SS (303SS)

SS (440C)

FREE FLOW

Type Size KV (SLPm)

@ 350 kPa*

ZMC M3.5 .009 12ZMC M5 .034 48ZMC M6 .064 80ZMC M8 .100 130

types ZmNbc, ZmNVc

type Zmc

construction

hex

AB

C

th'dO-ring

installationSeal against flat smooth surface

O-RingType: ZMNBC ZMNVC

MaximumOpening Ø

th'd a b c hex M3.5 7.87 1.97 2.29 2

M5.0 10.8 2.57 3.10 2.5

M6.0 12.7 3.81 4.45 3

M8.0 16.3 4.83 5.59 4

Thread Maximum Opening Ø

M3.5 x 0.6 mm 1.20 M5.0 x 0.8 mm 1.57 M6.0 x 1 mm 2.41 M8.0 x 1.25 mm 3.18

Dimensions - mm

Dimensions - mm

Ball Stop

* data from flow chart

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ZMC

ZMNBC

ZMNVC

ZMC

Size |

M3.5

M5

M6

M8

b/bS |

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- SS -

ball

SS

B

V

SS

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2.68

2.

89

3.13

3.

44

3.58

4.

00

4.30

4.

77

5.16

5.

43

38

115

0.

075

0.13

40

.185

0.2

680

.351

0.4

550

.566

0.6

140

.792

0.

902

1.07

1.

22

1.35

1

.55

1.75

1.

94

2.19

2

.32

2.6

12.

85

3.12

3

.34

3.65

3.

78

4.20

4.

51

5.05

5

.45

5.72

508

20

0.07

50.

134

0.1

850

.268

0.3

510

.455

0.5

660

.614

0.7

920

.902

1.

07

1.22

1.

35

1.55

1.

75

1.94

2.

19

2.32

2

.61

2.85

3.

12

3.34

3.

65

3.78

4.

20

4.51

5.

05

5.45

5.

72

762

30

0.07

50.

134

0.18

50.

268

0.35

10.

455

0.56

60.

614

0.79

20.

902

1.07

1.

22

1.35

1.

55

1.75

1.

94

2.19

2.

32

2.61

2

.85

3.12

3.

34

3.65

3.

78

4.20

4

.51

5.05

5.

45

5.72

Met

al O

rifice

Air

Flow

– S

LPM

Supply Pressure

Choked Flow

Vacuum LevelOrifice

diameter Vacuum Level

In

ches

0.

035

0.03

70.

038

0.03

90.

04

0.04

10.

042

0.04

30.

047

0.05

20.

055

0.06

0.

063

0.06

70.

07

0.07

30.

076

0.07

90.

081

0.08

60.

089

0.09

40.

096

0.1

0.10

40.

109

0.11

30.

12

0.12

5

mm

0.

89

0.94

0.

97

0.99

1.

02

1.04

1.

07

1.09

1.

19

1.32

1.

40

1.52

1.

60

1.70

1.

78

1.85

1.

93

2.01

2.

06

2.18

2.

26

2.39

2.

44

2.54

2.

64

2.77

2.

87

3.05

3.

18

Si

ze N

umbe

r 35

37

38

39

40

41

42

43

47

52

55

60

63

67

70

73

76

79

81

86

89

94

96

10

0 10

4 10

9 11

3 12

0 12

5

C V

0.02

80.

031

0.03

20.

033

0.03

60.

038

0.03

90.

041

0.04

80.

059

0.06

80.

081

0.08

80.

10.

11

0.12

0.

13

0.14

0.

15

0.17

0.

18

0.20

0.

21

0.23

0.

25

0.27

0.

31

0.34

0.

37

K V

0.02

40.

026

0.02

70.

028

0.03

10.

032

0.03

30.

035

0.04

10.

050

0.05

80.

069

0.07

50.

085

0.09

40.

10

0..1

10.

12

0.13

0.

145

0.15

0.

17

0.18

0.

20

0.21

0.

23

0.26

0.

29

0.32

kP

ag p

sig

6.

91

3.48

3.

83

4.13

4.

46

4.6

4.67

4.

99

5.36

6.

43

8.04

9.

411

.2

12.2

14

.2

15.9

16

.9

18.5

20

.3

21.7

23

.5

25.4

28

.4

30.1

32

.9

35.5

39

.6

43.1

47

.8

50.1

34

.5

57.

67

8.48

9.

09

9.7

10.2

10

.6

11.3

12

.1

14.2

17

.6

20.3

23

.9

26.1

30

.3

33.8

36

.1

39.4

43

.1

46

51.1

54

.9

61.9

65

70

.8

76.6

84

.8

92.1

10

210

8

69.0

10

10

.6

11.8

12

.5

13.6

14

.4

14.8

15

.6

16.8

19

.4

24.5

27

.1

32.2

35

.2

40.7

45

.6

48.5

52

.9

57.3

61

.6

67.9

72

.3

81

85.5

92

.3

102

112

118

135

148

10

3.4

15

13.1

14

.5

15.4

16

.7

17.7

18

.2

19.1

20

.4

23.6

29

.7

32.9

39

42

.6

49.3

55

.3

58.8

64

69

.4

74.5

82

.1

87.3

97

.8

103

111

123

135

143

163

178

13

7.9

20

15.3

17

18

.1

19.6

20

.9

21.4

22

.5

24

27.7

35

38

.7

45.9

50

.1

58

65

69

75.3

81

.4

87.3

95

.6

102

114

121

130

144

158

167

190

210

17

2.4

25

17.7

19

.6

20.8

22

.6

24

24.7

25

.9

27.6

31

.9

40.3

44

.6

52.8

57

.7

66.7

74

.7

79.3

86

.4

93.5

10

011

011

713

113

814

916

418

019

121

924

1

206.

930

20

22

.2

23.6

25

.6

27.2

28

29

.4

31.3

36

45

.6

50.4

59

.7

65.2

75

.4

84.3

89

.5

97.4

10

511

312

513

214

815

616

818

520

421

624

827

3

275.

840

24

.8

27.4

31

.7

31.6

33

.6

34.6

36

.3

38.7

44

.5

56.3

62

.2

73.6

80

.3

92.7

10

411

012

012

913

915

316

218

119

120

722

825

126

730

633

7

344.

850

29

.5

32.6

34

.8

37.6

40

.1

41.3

43

.3

46

52.9

66

.9

74

87.4

95

.4

110

123

131

142

153

164

181

192

215

227

247

272

299

317

364

401

41

3.7

60

34.3

38

40

.6

43.8

46

.7

48.1

50

.3

53.5

61

.5

77.7

85

.8

101

110

127

142

151

164

177

189

210

223

250

264

286

315

347

368

422

465

48

2.7

70

39.2

43

.3

46.3

50

53

.3

55

57.4

61

70

88

.4

97.6

11

512

614

516

217

118

620

221

624

025

428

530

132

736

039

642

148

253

1

551.

680

44

48

.7

52.1

56

.2

60

61.9

64

.5

68.5

78

.6

99.1

10

912

914

116

218

119

120

922

724

226

928

532

033

836

740

444

547

254

159

6

620.

690

50

54

.2

57.8

62

.4

66.7

68

.9

71.5

76

87

.2

109

121

143

156

179

200

211

231

251

268

298

316

354

374

406

447

492

522

598

660

68

9.5

100

53

.9

59.6

63

.7

68.7

73

.5

77.3

78

.6

83.5

95

.8

120

133

156

171

196

221

234

255

277

296

329

349

392

413

449

494

544

578

662

729

m

m H

g in

. Hg

12

75

4.

92

5.4

5.81

6.

29

6.76

6.

82

7.29

7.

67

9.08

11

.3

12.4

14

.8

17.1

20

22

.5

23.9

26

28

.3

30.2

33

.2

35.9

40

.1

41.8

45

.3

49

53.9

57

.9

65.3

70

.9

254

10

6.18

6.

78

7.29

7.

85

8.31

8.

59.

08

9.58

11

.1

13.9

15

.4

18.2

21

.2

24.4

27

.2

29.9

32

.5

35.3

37

.7

41.5

44

.8

50

52.1

56

.6

61.2

67

.2

72.2

81

.4

88.4

38

115

6.

57.

17

7.63

8.

22

8.66

8.

87

9.46

10

11

.6

14.4

15

.9

18.6

22

.1

25.5

28

.4

31.2

33

.9

36.8

39

.4

43.3

46

.7

52.1

54

.4

59

63.8

70

.1

75.3

84

.9

92.2

50

820

6.

57.

17

7.63

8.

22

8.66

8.

87

9.46

10

11

.6

14.4

15

.9

18.6

22

.1

25.5

28

.4

31.2

33

.9

36.8

39

.4

43.3

46

.7

52.1

54

.4

59

63.8

70

.1

75.3

84

.9

92.2

76

230

6.

57.

17

7.63

8.

22

8.66

8.

87

9.46

10

11

.6

14.4

15

.9

18.6

22

.1

25.5

28

.4

31.2

33

.9

36.8

39

.4

43.3

46

.7

52.1

54

.4

59

63.8

70

.1

75.3

84

.9

92.2

Orificediameter

Documents

METRIC PRECISION ORIFICES AND MINIATURE CHECK VALVES