CAMLOCK TECHNICAL INFORMATION

Pacific Fittings Camlock couplers are fully interchangeable with Dixon camlock fittings, PT Couplings, Banjo and OPW camlock fittings.

TECHNICAL INFORMATION

SPECIFICATIONS

Historically the standard for cam action couplings has been based on the US Military Specification MIL-C-27487 (Coupling Halves, Quick-Disconnect, Cam-Locking Type). The specification laid down the casting method, materials, dimensions, tolerances, pressure ratings and inspection procedures. The MIL-C-27487 specification guaranteed inter-changeability of products. MIL-C-27487 has now been declared obsolete, and replaced by a new US Federal standard A-A-59326. All our metallic couplings are manufactured in accordance with the dimensions and tolerances of MIL-C-27487/ A-A-59326 specification and pressure-tested. 

Please note all illustrations, descriptive matter, dimensions and weights are for guidance only and cannot be held as binding in any way. We reserve the right to change specifications and information included here without any prior notice. Although all information detailed here has been carefully compiled and thoroughly checked, no responsibility can be assumed for errors or omissions. Please contact us to be sure that the information you have is current.

WORKING PRESSURE – PSI

Material

½”

¾”- 2”

2½”

3”

4”

5”- 6”

Brass

150

250

150

125

100

75

Aluminium

150

250

150

125

100

75

Stainless Steel 316

150

250

225

200

100

100

Polypropylene

75

100

-

50

-

-

Note: 
The working pressures given here are for ambient temperatures using elastomeric seals (see table above). Higher temperatures and/or PTFE seals will reduce the pressure rating of the coupling. In the case of polypropylene the maximum working temperature is 70°C (158°F). At this temperature, the working pressures above must be reduced by 40%.

CERTIFICATION
Full material certification is available if requested at the time of order.

THREADS
All threads BSP (BSPT).

END FITTINGS
Hose tail ends are double ribbed for metallic couplings and multi-serrated for polypropylene. For flanged or weld ends please call us to discuss.

Materials and Sizes

COUPLING BODY

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

Material

 

 

 

 

 

 

 

 

 

Aluminium

Stainless Steel 316

-

Polypropylene

-

Aluminium camlock couplings are gravity cast (except for size 5” which are sand cast when supplied).

Stainless Steel 316 couplings are investment cast. These may be electro-polished for sanitary applications.

Polypropylene camlock fittings are manufactured from acid-resistant, glass-reinforced polypropylene.

Brass couplings are either sand cast or forged (currently not supplied).

 

HANDLES

Handle Material

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

Camlock material

 

 

 

 

 

 

 

 

 

Aluminium

Br

Br

Br

Br

Br

Br

Br

Br

Br

Stainless Steel 316

SS

SS

SS

SS

SS

SS

-

SS

SS

Polypropylene

Br

Br

Br

Br

Br

Br

-

Br

Br

Br - Brass,   SS - Stainless Steel

Handles: These are stainless steel for SS316 & polypropylene cam and groove couplings. Brass for aluminium and polypropylene couplings.

Pull Rings:  Fitted to all sizes. Stainless Steel for SS316 couplings. Brass for aluminium and polypropylene couplings. 

GASKETS

Standard gasket materials for metallic couplings: Buna N. Standard for polypropylene: EPDM

operating – HOW THE COUPLING WORKS

 

pacific-fittings

To connect, simply extend arms out and slip the camlock adapter smoothly into the camlock coupler. Then press the handles down with normal hand pressure.

Note:

  1. Recess holds gaskets in place ready for positive sealing action.
  2. Adaptor and coupler are designed to minimise turbulence in gases, fluids and abrasion from dry products at the point of connections. 

pacific-fittings

All couplings are supplied with locking feature as standard. Safety clips may be inserted to lock handles to prevent disconnection during product transfer. 

 

WHY CHOOSE a camlock COUPLER?

  • Flexibility
  • Safety
  • Speed
  • No Tools

Because of the great variety of suitable applications, camlock couplers are probably the world’s most widely used quick connect coupler.

 

Industry Applications

Camlock couplers are applicable to most industries that use liquids, powders or gases. Examples of industries where cam and groove couplings are used include: 

AGRICULTURE
Polypropylene camlock fittings are resistant to most acids and are ideal as camlock hose connectors on agricultural sprayers. Here they save time during refilling of tanks.

OIL DISTRIBUTION
In many countries, camlock couplings are the standard connection for hoses used in fuel delivery to service stations and domestic premises. No tools are required to make the connection. The risk of cross threading is also avoided.

CLEANING
Many industrial cleaning products work with hoses. Hoses with camlock fittings can  easily be disconnected for storage to facilitate transport. Ease of disconnection facilitates removal in the event of a blockage occurring.

PUMP CONNECTIONS
Cam and groove fittings are often used at the inlet & outlet connections of pumps. An example would be a hose connect to a pump removing oil from the water’s surface in an oil spill skimming system.

MILITARY
Per the US military spec MIL-C-27487 (now A-A-59326), camlock couplings are widely used by NATO forces throughout the world to facilitate rapid tactical deployment. Anodised aluminium cam and groove fittings can be supplied to the full spec.

PAINTS, INKS AND DYES
Camlock fittings assist in the manufacture of paints, inks & dyes which requires frequent hose changes to find the correct mix. The couplings can also tolerate the collection of coatings without detriment to the seal.

 

TYPICAL USAGE EXAMPLE: Petrochemical process plant

 

Solids: Aluminium cam & groove couplings can be used to join piping carrying solids, powders or pellets and can then easily be disconnected if blockages occur.

Process: Camlock couplings are particularly effective in the rapid changing of lines e.g. in mixing vessesls. This saves time compared with flanged or threaded pipe fittings.

Storage: Camlock couplings are a standard option on IBC containers to allow rapid filling and emptying.  Aggressive chemicals can also be handled. Stainless Steel and polypropylene camlock fittings are resistant to most acids and corrosive solvents.

Tablet presses: For hygienic applications, camlock couplings can be electro polished and fitted with food grade seals. All seals can easily be removed for cleaning.

 

 

GENERAL DIMENSIONS

 

TYPE A

Type A

 

TYPE A

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

A

13

20

24

28

35

45

55

72

97

121

145

B

37

41

46

55

58

62

89

71

80

85

89

C

26

35

38

47

56

69

82

101

126

150

182

 

 

TYPE B

Type B

  

TYPE B

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

A

14

19

23

30

36

47

60

72

100

123

150

B

47

54

62

68

72

79

87

91

99

103

113

C

39

54

60

80

81

89

105

90

148

175

220

 

 

TYPE C

Type C

 

TYPE C

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

A

10

13

19

26

32

43

56

66

90

106

144

B

73

87

97

104

109

125

136

160

170

187

256

D

15

21

27

33

41

53

68

76

103

130

155

E

31

35

40

46

47

53

56

58

62

65

66

G

39

54

60

79

86

97

105

121

148

175

220

 

 

TYPE D

Type D

 

TYPE D

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

A

14

21

25

30

36

46

56

73

101

121

141

B

48

53

60

70

74

81

87

90

100

102

108

C

26

34

40

51

57

68

82

98

124

152

181

E

32

35

39

46

47

54

57

59

61

63

68

G

39

54

59

70

80

89

105

121

150

180

220

 

 

TYPE E

Type E

 

TYPE E

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

A

14

20

25

28

36

45

55

72

96

120

143

B

64

84

93

104

110

128

135

160

168

193

243

C

29

35

38

49

58

76

79

98

122

162

178

D

15

21

27

34

40

53

66

78

102

126

152

E

29

34

37

46

49

57

57

58

60

71

76

 

 

TYPE F

Type F

  

TYPE F

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

A

13

21

25

28

36

45

55

72

96

124

151

B

56

59

68

78

81

87

101

103

118

127

121

C

26

35

38

47

56

68

79

101

126

150

181

E

37

41

45

54

58

62

69

71

79

82

78

 

 

TYPE DC

Type DC

 

TYPE DC

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

B

43

46

52

60

63

70

73

78

90

105

113

G

39

54

59

70

80

89

105

121

150

180

220

 

 

TYPE DP

Type DC

 

TYPE DP

 

 

 

 

 

 

 

 

 

 

 

Size

½”

¾”

1"

1¼"

1½"

2"

2½"

3"

4"

5"

6"

Dim/ DIN

13

19

25

32

40

50

65

75

100

125

150

B

36

38

46

53

55

63

68

66

70

75

88

E

27

25

34

41

41

49

53

52

54

53

90

 

NOTE: Dimensions are typical only. The precise dimension of parts will vary from material to material. If dimensions are critical to an application we strongly advise that you contact us for detailed information.

 

GENERAL INFORMATION

 

CASTING METHODS

Casting is the process where metal is heated until molten and then while in this state is poured into a mould. Forging is changing the shape of material already in the solid state through the application of heat and mechanical energy.

 

Gravity casting – Is a repeatable casting process used for non-ferrous alloy parts, typically aluminium, zinc and copper base alloys. The process differs from Pressure Die casting in that gravity rather than high pressure is used to fill the void. Here the process is not automated. Advantages – good dimensional accuracy/ smoother cast surface finish than pressure die and sand casting. Quality product. Gravity casting costs more than Pressure Die casting.

Pressure Die casting – this process is a way to produce high volumes of identical, low temperature metallic components with a great degree of precision and repeatability. Molten metals or alloys are injected under high force into a metal die. Automated process. Blowhole noticeable on dissection. 

Investment casting – allows for un-machinable parts to be cast near final shape. Ideal for low volume production. Provides excellent dimensional accuracy.

Sand casting – uses non-reusable sand moulds to from metal castings. Versatile in the size of products it can accommodate. Can also create complex and detailed castings. Can be used to cast nearly any metal alloy. Inexpensive, easily recycled and can withstand extremely high temperatures.

GASKETS 

Buna-N, also known as Nitrile rubber and NBR, is the most widely used elastomer for gaskets and seals. Its properties provide excellent resistance to oils, solvents, gasoline, and petroleum based fluids.

EPDM stands for ethylene propylene diene monomer (M-class) rubber.  This is a specially designed synthetic rubber for water applications.  An elastomer characterised by a wide range of applications. Supplied as standard in polypropylene camlocks since poly is used in agriculture with chemicals.

Viton, similar to EPDM in that it is an elastomer with high yield strength for outstanding durability. It is specifically formulated for use with hydrocarbons including corrosive liquids. Not recommend for storage of organic acids.

 

MATERIAL AND APPLICATION

Material

Cast style

Typical Application

Description

Aluminium

Die

General/ Agricultural /Industrial

The most common and economical of the Aluminium range. Used for general Air and Water applications.

Aluminium

Gravity

Heavy duty industrial/ Petro-chemical industry/ Military

Heat-treated to increase strength. Reduces possibility of camlocks deforming or going oval when dropped. Fully weldable

Stainless Steel 316

Sand

Food & Beverage Industry/ Offshore/ Chemical Industry/ Marine

Fully weldable

Brass

Die

Offshore/ Mining/ Fire Brigade

 

Polypropylene (black)

 

Agricultural Spraying/ Chemical Industry

Used extensively throughout the chemical and agricultural sector.

Nyglass (yellow)

 

Agricultural Spraying/ Chemical Industry

Alternative to Polypropylene. Glass filled nylon.

 

THREADS

BSP stands for British Standard Pipe and is common in Australia and the commonwealth countries. There are two types of BSP threads:

- BSPT (British Standard Pipe Taper). BSPT male threads seal against threads of BSPT female.

- BSPP (British Standard Pipe Parallel). BSPP male and females flat face require a suitable soft washer between faces to seal. For low working pressure.

 

NPT stands for National Pipe Thread. This is an American standard thread.