correct selection of compressed air … · be quickly and simply plugged into yoke pieces...

Most SHAVO units are available in port sizes from 1/8 to 2 and there is a wide choice of filter

elements and regulating and relief spring ranges for filters, regulators, filter-regulators and relief valves.

Filter and filter-regulators have automatic or manual-drain and regulators and filter-regulators are

offered of relieving or non-relieving construction. There are two basic types of lubricators : the

Oil-Fog type for general lubrication of air cylinders and valves, pneumatic tools and similar air

operated devices and the Micro-Mist lubricators for use with high speed tools or where there are

lengthy complex piping systems and multiple points of application.

Models are available with standard pipe threads or to the Plug -In design, which permits units to

be quickly and simply plugged into yoke pieces permanently installed in the pipeline. Any

combination of Shavo Filters, Regulators, Filter-Regulators and Lubricators can be assembled

together to automatically remove liquid and solid contaminants from the air stream, regulate main

line air pressure to the required working level and to create an airborne oil or Micro-Mist for the

proper lubrication of air tools, air cylinders and other air power equipment.

CORRECT SELECTION

OF COMPRESSED AIR PROCESSING EQUIPMENT

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 i

0702

GUIDELINES

Choose a Standard 'filter' for general application on plant and

machinery and in factory air lines.

A 50-micrometre element is suitable for most purposes. Choose a

finer element to protect instruments and similar equipment.

Remember that too fine a filter element will become quickly choked.

Automatic-drain filters are labour saving.

Metal bowl filters withstand higher pressures and temperatures

and rougher usage.

Choose an Oil Removal filter when particularly clean oil free air is

required e.g. for :-

• Pneumatic control instrumentation

• Protection of fluidic elements

• Air supply to protective clothing

• Printing and paper separation

• Brewing and beer dispensing

• When air is coming into contact with food, drugs and medical

supplies

• Paint spraying

• Adsorption air dryers, gas burners etc.

OPERATION OF TYPICAL MODEL

Air enters the filter through directional louvres (A) which force it

into a whirling flow pattern. Liquid particles are thrown against

the inside wall of the bowl by centrifugal force and subsequently

run down into the bottom of the bowl where the baffle (B) maintains

a 'quiet zone' to prevent air turbulence from picking up the liquid

and returning it to the air stream. The air then passes through

the filter element (C) to remove solid contaminants. When

the liquid level reached a predetermined height the float operated

automatic-drain assembly (D) automatically dumps collected

liquid to drain. Manual-drain filters are drained by operating

the draincock.

DECIDE YOUR REQUIREMENTS AS FOLLOWS

1) Pipe Size : check the table on back page for maximum

recommended flow through pipe and guide figures given in

table here.

2) Manual or Automatic-Drain

3) Transparent or Metal Bowl

4) Preferred Filter Element

5) Accessories as listed in Sales Leaflet

6) CHOOSE PLUG-IN DESIGN FOR EASE OF SERVICING.

HOW TO SELECT THE FILTER YOU NEED?

HIGH EFFICIENCY OIL REMOVING FILTERS

GENERAL SPECIFICATIONS

TRANSPARENT BOWL MODELS

Max. Pressure :10 kg/cm² (150 p.s.i.)0 0Max. Temperature : 50 C (120 F)

METAL BOWL MODELSMax. Pressure : 17.5 kg/cm² (250 p.s.i.)

0 0Max. Temperature : 80 C (175 F)

These filters remove oil mist and very fine solids from the airstream.

Efficiency against sub-micron particles better than 99.999%.

Oil contamination in the outlet air is negligible.

Fit Pre-Filter upstream of oil removing filters to remove gross contaminants.

STANDARD FILTERS



Max. Pressure: 10 kg/cm² (150 p.s.i.)0 0Max. Temperature : 50 C (120 F)

METAL BOWL MODELS

Max. Pressure :17.5 kg/cm² (250 p.s.i.)0 0Max. Temperature : 80 C (175 F)

These filters remove free moisture

and solids from the airstream.

Flow rates given in the table are at6 bar supply pressure and 1 bar

pressure drop - 50 µ filteration.

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 ii

0702

8.5

(1

8)

9.5

(2

0)

29

.0 (

60

)

47

.0 (

99

)

51

.0 (

10

7)

32

.0 (

67

)

76

.0 (

16

0)

85

.0 (

17

9)

32

.0 (

67

)

83

.0 (

17

4)

95

.0 (

20

0)

110

.0 (

23

1)

95

.00

(2

00

)

33

3.0

(7

00

)

33

3.0

(7

00

)

10

00

.0 (

21

00

)

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 iii

0702

1.3

(3

)

3.8

(8

)

3.8

(8

)

1.3

(3

)

3.8

(8

0

12

.0 (

25

)

7.0

(1

5)

3.8

(8

)

3.8

(8

)

25

.0 (

53

)

11.0

(2

3)

3.8

(8

)

3.8

(8

)

25

.0 (

53

)

11.0

(2

3)

28

.0 (

59

)

43

. (9

0)

57

.0 (

12

0

112

.0 (

23

5)

13

5.0

(2

83

)

Co

ale

sin

g typ

e, A

D w

ork

s o

n flo

w c

ha

ng

e o

nly

Co

ale

sin

g typ

e

Va

po

r R

em

ova

l typ

e

Co

ale

sin

g typ

e, A

D w

ork

s o

n flo

w c

ha

ng

e

Co

ale

sin

g typ

e

Co

ale

sin

g typ

e, P

lug

-in

syst

em

Co

ale

sin

g a

nd

Va

po

r R

em

ova

l, P

lug

-in

syst

em

Co

ale

sin

g typ

e

Va

po

r re

mo

val sy

ste

m

Co

ale

sin

g typ

e, P

lug

-in

syst

em

Co

ale

sin

g a

nd

Va

po

r R

em

ova

l, P

lug

-in

syst

em

Co

ale

sin

g typ

e

Va

po

r re

mo

val ty

pe

Co

ale

sin

g typ

e, P

lug

-in

syst

em

Co

ale

sin

g a

nd

Va

po

r R

em

ova

l, P

lug

-in

syst

em

Co

ale

sin

g typ

e

Co

ale

sin

g typ

e

Co

ale

sin

g typ

e

Co

ale

sin

g typ

e

Co

ale

sin

g typ

e

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 iv

0702

GUIDELINES

Choose a regulating spring such that the usual regulator setting

is above midway in the spring range.

Relieving type regulators are convenient for most applications.

Non-relieving regulators cannot be adjusted to provide a lower

pressure unless downstream air is first utilised to reduce the

existing residual pressure. They are particularly recommended

when it is vital that there is no local exhaust to atmosphere.

Precision regulators or precision controllers should be specified

where particularly fine pressure control is required for instruments,

air gauging and similar applications.


The adjusting knob (A) is rotated to load the adjusting spring

(B) the amount necessary until the required regulated pressure

is shown on the gauge. The load is transmitted through the

flexible regulator diaphragm (C) to the valve (D), causing it to

open. The underside of the diaphragm is connected to the

regulator outlet by a syphon tube (E). As the regulated pressure

increases, the force under the diaphragm increases causing the

diaphragm to compress the adjusting spring until a balance is

achieved. Excess pressure is vented through the relief seat.

The pressure setting can be locked by pressing down the

snap-action lock (F).

NOTE : Settings under 'no flow' conditions will alter under 'flow' conditions

and vice versa.

NON-RELIEVING TYPE

With this construction it is necessary to operate downstream

equipment if it is desired to reduce the pressure setting.

DECIDE YOUR REQUIREMENTS AS FOLLOWS

1) Consider your need for a general purpose or special purpose

regulator and degree of accuracy required

2) Pipe Size : check the table on back page for maximum

recommended flow through pipe and the guide figures given

on the table opposite .

3) Relieving or Non-Relieving

4) Regulating Spring Range

5) Accessories, panel mounting etc. as listed in Sales Leaflet.

6) CHOOSE PLUG-IN DESIGN FOR EASE OF SERVICING

Flow rates given in the table are at a

supply pressure of 10 bar and 1 bar

drop inlet sec. Pr. of 6 bar.

HOW TO SELECT THE REGULATOR

YOU NEED ?

Note : The information given in this table is for general guidance only.Study of the flow characteristics in the Sales Leaflet will give youmuch more helpful information.


MAXIMUM PRIMARY PRESSURE2SRO2 : 28 kg/cm .2Others : 21 kg/cm .

0Maximum Temperature : 80 C

Relieving : Standard

Non-Relieving : Optional

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 v

0702

6.3

(1

3)

7.2

(1

5)

28

.0 (

59

)

28

.0 (

59

)

25

.0 (

53

)

31

.0 (

65

)

36

.5 (

77

)

42

.0 (

88

)

31

.0 (

65

)

60

.0 (

12

6)

95

.0 (

20

0)

83

.0 (

17

4)

95

.0 (

20

0)

18

0.0

(3

78

)

18

0.0

(3

78

)

605.

0 (1

270)

950.

0 (1

995)

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 vi

0702

GUIDELINES

Oil Mist lubricators give a high oil output and are recommended

for the general lubrication of cylinders and valves in simple

circuits and low speed pneumatic tools.

Choose a 'Constant Density' automatic model for applications

on assembly lines etc. where the air flow constantly varies

between wide limits.

HOW TO SELECT THE OIL-MIST

LUBRICATOR YOU NEED ?

OIL MIST LUBRICATORS


TRANSPERENT BOWL MODELS2Max. Pressure : 10 kg/cm (150 p.s.i.)


METAL BOWL MODELS2Max. Pressure : 17.5 kg/cm (250 p.s.i.)


Flow rates given in the table are at

6 bar supply pressure and 1 bar pressure

drop.

# Dimensions : Allow sufficient clearance

for servicing - in particular allow room for

withdrawing Plug-In units.

ALL the oil seen passing through the

sight dome enters the air line as Oil-Mist

Most Oil-Mist lubricators can be refilled

with oil under pressure.

OPERATION OF TYPICAL CONSTANT DENSITY MODEL

Air enters the lubricator and flows past the automatic

flow sensor (A) and on through the venturi section to the

outlet port. A portion of the air flows through the check valve

(B) to pressurise the bowl. Differential pressure between

the bowl and sight feed dome (C) causes oil to flow up to

the syphon tube (D), through the dome screen into passages

in the sight feed dome. The oil-drip rate is controlled

by the adjusting knob (E). The oil drips into the venturi

section where it is atomised and becomes airborne

oil-mist which is carried to the pneumatic device. The automatic

flow sensor (elastomer) flexes as necessary to accommodate

changes in air flow. The oil drip rate setting can be

tamper-proofed by pressing down the green snap-action

lock (F).

DECIDE YOUR REQUIREMENTS AS FOLLOWS :-

1) Required Operating Flow Range and Operating Pressure.

2) Specify Pipe Size.

3) Specify lubricator oil capacity not too small, not too large.

4) Transparent or Metal Bowl (large capacity lubricators have

metal reservoir)

5) Accessories as listed on Sales Leaflet


Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 vii

0702

OIL

MIS

T L

UB

RIC

AT

OR

S F

OR

SIM

PLE

PIP

ING

SY

ST

EM

17

.6 (

37

)1

.2 (

2.5

)

33

.0 (

69

)0

.9 (

1.9

)

31

.5 (

66

)0

.9 (

1.9

)

33

.0 (

69

)1

.8 (

3.8

)

68

.0 (

14

3)

1.0

(2

.1)

33

.0 (

69

)1

.8 (

3.8

)

52

.0 (

10

9)

1.5

(3

.2)

87

.0 (

18

3)

1.5

(3

.2)

58

.5 (

12

3)

1.5

(3

.2)

87

.0 (

18

3)

1.5

(3

.2)

19

5.0

(4

10

)3

.4 (

7.2

)

19

5.0

(4

10

)3

.4 (

7.2

)

33

.0 (

69

)1

.0 (

2.1

)

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 viii

0702

HOW TO SELECT THE MICRO-MIST

LUBRICATOR YOU NEED ?

GUIDELINES

Micro-Mist lubricators should be used to lubricated high

speed and rotary motor air tools, multi cylinder circuits on

frequent and rapid operation, complicated circuits and where

there are long pipe runs or where very fine, control of oil

output is required. Choose a 'Constant Density' automatic

model for applications on assembly lines etc. where the air

flow constantly varies between wide limits.

OPERATION OF TYPICAL CONSTANT DENSITY MODEL

Part of the air entering the inlet flows through the venturi

and cross-fire jets (A) remaining air flows past the automatic

flow sensor (B) to the downstream system. Differential

pressure between the bowl and the sight feed dome (C)

causes oil to flow up the syphon tube (D), through the

dome screen (E) into passages in the sight feed dome. The

oil drip-rate is controlled by the adjusting knob (F). When

the oil drips into the venturi section it is broken up into

fine particles by the action of the cross-fire jets and most

oil particles larger than 2 microns in size fall out and return

to the surface of the oil. The smaller particles remain

airborne. This is Micro-Mist representing only a small

percentage of the oil which passed through the sight

feed dome. This travels through passageway (G) to the

downstream air line and on to the points of lubrication. The

automatic flow sensor flexes as necessary to accommodate

changes in air flow. The oil drip rate setting can be tamper-proofed

by pressing down the red snap-action lock (H).

DECIDE YOUR REQUIREMENTS AS FOLLOWS :-

1) Required Operating Flow Range and Operating Pressure.

2) Specify Pipe Size.

3) Specify lubricator oil capacity not too small, not too large.

4) Transparent or Metal Bowl (large capacity lubricators have

metal reservoir)

5) Accessories as listed on Sales Leaflet


MICRO MIST LUBRICATORS



Max.Pressure :10 kg/cm² (150 p.s.i.)0 0Max. Temperature : 50 C (120 F)

METAL BOWL MODELS

Max. Pressure

½ litre and below : 16 kg/cm² (250 p.s.i.)

1 litre sizes and

larger : 10 kg/cm² (150 p.s.i)0 0Max. Temperature : 80 C (175 F)

Flow rates given in the table are

at 6 bar supply pressure and

1 bar pressure drop

# Dimensions : Allow sufficient

clearance

for servicing in particular allow room for


ONLY A PERCENTAGE of the oil seen

passing through the sight dome enters

the air line as Micro-Mist.

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 ix

0702

87

.0 (

18

3)

1.5

(3

.2)

19

5.0

(4

10

)3

.4 (

7.1

)

19

5.0

(4

10

)3

.4 (

7.1

)

87

.0 (

18

3)

1.5

(3

.2)

31

.4 (

66

)1

.8 (

3.9

)

68

.0 (

14

3)

1.0

(2

.1)

31

.4 (

66

)1

.8 (

3.9

)

31

.5 (

66

)0

.9 (

2)

16

.7 (

35

)1

.2 (

2.5

)

7.2

(1

5)

0.2

5 (

0.5

)

6.3

(1

3)

0.2

5 (

0.5

)

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 x

0702

A convenient means of combining the functions of a Filter

and Regulator - as described in previous sections - in one

compact unit.

GUIDELINES

A 50-micrometre element is suitable for most applications.

Choose a finer element to protect instruments and similar

equipment.

Remember that too fine a filter element will become quickly

choked.

Automatic-drain models are labour saving.

Metal bowl models withstand higher temperatures and

pressures and rougher usage.

Choose a regulating spring such that the usual regulator

setting is above midway in the spring range.

Relieving type models are convenient for most applications.

Non-relieving models cannot be adjusted to provide a lower

pressure unless downstream air is just utilised to reduce the

existing residual pressure.

INTEGRAL FILTER -REGULATORS

Save lateral space



Max. Pressure : 10 kg/cm² (150 p.s.i)0 0Max. Temperature : 50 C (120 F)

METAL BOWL MODELS

Max. Pressure : 17.5 kg/cm² (250 p.s.i)0 0Max. Temperature : 80 C (175 F)

FILTER SECTION

Filter Elements : Sintered Bronze /

Porous Plastic

Manual or

Automatic Drain

REGULATOR SECTION

Diaphragm Operation / Piston

Relieving or Non-Relieving Types


Air entering the unit flows through directional louvres (A)

which force it into a Whirling flow pattern. Liquid particles are

thrown against the inside wall of the bowl by centrifugal force

and then run down into the bottom of the bowl. The baffle (B)

maintains a 'quiet zone' to prevent air turbulence from picking

up the liquid and returning it to the air stream. The air then

passes through the filter element (C) to remove solid

contaminants. When the liquid level reaches a predetermined

height the float operated automatic-drain assembly (D)

automatically dumps collected liquid to drain. Manual-drain

models are drained by opening a draincock. From the filter

element the air passes to the pressure regulator section.

When no load is applied to the adjusting spring (E) the

regulator valve (F) is closed. As the adjusting knob (G) is turned

it applies a load to the spring which is transmitted to the

valve through the flexible diaphragm (H), causing it to open.

The air pressure side of the diaphragm is connected to the

outlet port by means of a syphon tube (J), therefore, regulated

pressure is exerted against the diaphragm. As the regulated

pressure increases, the pressure under the diaphragm

also increases and forces the diaphragm to compress the

adjusting spring until the load exerted by the spring is equal

to the load exerted by the regulated pressure. Excess

downstream pressure is vented through the relief seat (K).

The pressure setting is locked by pressing down the

snap-action lock (L).

NON-RELIEVING TYPE

With this construction it is necessary to operate downstream

equipment if it is desired to reduce the pressure setting.

# Dimensions : Allow sufficient clearance

for servicing in particular allow room for


Flow rates given in the table are at 10

bar supply pressure and 1 bar drop in

secondary pressure of 6 bar.

HOW TO SELECT THE

FILTER - REGULATOR YOU NEED ?

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 xi

0702

14

.3 (

30

)

16

.3 (

34

)

25

.2 (

53

)

25

.2 (

53

)

22

.0 (

46

)

27

.7 (

58

)

37

.0 (

78

)

27

.7 (

58

)

83

.0 (

17

4)

72

.0 (

15

1)

91

(1

91

)

50

(1

05

)

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 xii

0702

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 xiii

0702

Ap

plie

dG

au

ge

Pre

ssu

rep

.s.i.

NO

MIN

AL

STA

ND

AR

D P

IPE

SIZ

E (

NO

MIN

AL

BO

RE

) -

INC

HE

S

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 xiv

0702

2atm kg/cm psi mmHg bars In/H O M/H O2 2

1 atm = 760 mm Hg 1 1.033 14.70 760 1.013 407.1 10.34

21 kg/cm 0.9678 1 14.22 735.6 0.9807 394.1 10.01

1 psi (pounds persquare inch) 0.06805 0.07031 1 51.71 0.06895 27.30 0.7037

1 torr = 1/760 atm =-3 -3 -3 -31 mm Hg 1.316x10 1.360x10 19.34x10 1 1.333x10 0.5357 0.0136

6 21 bar = 10 dyne/cm 0.9869 1.02 14.5 750.1 1 401.8 10.21

In/H O (Inches of2

o -3 -3 -3Water at 15 C) 2.456x10 2.538x10 0.0361 1.867 2.489x10 1 0.0254

M/H O (Meters of2

oWater at 15 C) 0.0967 0.0999 1.421 73.49 0.098 39.37 1

To Obtain

Units x Factor

CONVERSION TABLE UNITS OF PRESSURE

3 3gpm I/min 1/hr. cfh cfm m /min m /hr.

-3gpm (gallons per 1.0 3.785 227.1 8.021 0.1337 3.785x10 0.2271minute-U.S.A.gals.)

-3 -31/min. (litres per 0.264 1.0 60.0 2.119 0.035 1x10 60x10minute)

3 3dm /sec. 15.84 60 3600 127.14 2.1 60x10 3.6

-3 -3 -6 -31/hr. (litres per hour) 0.0044 16.66x10 1.0 0.035 0.5885x10 16.67x10 1x10

-3-3 -3cfh (cubic feet 0.1247 0.472 28.32 1.0 16.67 x10 0.472x10 28.32x10

per hour)

-3cfm (cubic feet 7.481 28.32 1699 60 1.0 28.32x10 1.6992per minute)

3 3m /min. (cubic metre 264.2 1000 60x10 2119 35.31 1.0 60per minute)

3 -3m /hr. (cubic metre 4.403 16.67 1000 35.31 0.588 16.67x10 1.0per hour)

To Obtain

Units x Factor

CONVERSION TABLE UNITS OF FLOW

Mumbai, India. Tel. : 022-2760 4700 Fax : 022-2760 4790 xv

0702

correct selection of compressed air … · be quickly and simply plugged into yoke pieces...

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