Mech-Controller ...
   
 

 


 
Manual / Wiring Diagram
 

Hand Shut Off Valves
     
Application

These diaphragm type hand shut off valves are designed for installations in liquid, suction and hotgas lines of commercial refrigerating systems and on civil and industrial
air-conditioning systems.

 
Construction

Diaphragm valves don’t have gland seals. The external sealing is assured by thin metal discs (diaphragms), which hermetically divide the spindle chamber from the fluid flow area.

 

The main parts of the valves are made with the following materials

Hot forged brass body as per BS-218

Extruded brass for the spindle

Special spring steel for the spring

Engineering Plastics for seat sealing gaskets

     
Features

Can be used on all CFC’s and HCFC’s

 

Seat of Engineering Plastics to give complete shut off with minimum torque

 

Fitted with stainless steel diaphragms that prevent leakage

 

Throughout the operating life of the valve

 
 
Model Size Flare Size OD Operating Temp Operating Pressure
0C Min 0C Max

PSI (Max)

   CSV - 6 1/4"   -35 90

400

   CSV - 6 S   1/4"
   CSV - 10 3/8"  
   CSV - 10 S   3/8"
   CSV - 12 1/2"  
   CSV - 12 S   1/2"
   CSV - 15 5/8"  
   CSV - 15 S   5/8"
 
 
 
  Angle Valve (Receiver Valve)
   


 
Manual / Wiring Diagram
 

Application

These receiver valves are designed for installation on commercial refrigerating systems and on civil and industrial air-conditioning systems. They are suitable for all refrigerant fluids except Ammonia.

 
Construction

The main parts of these valves are made with the following materials :

 

Hot forged brass as per BS-218

 

Steel with proper surface protection, for the spindle

 

Neoprene rubber for the gland

 

Engineering Plastics for the cap that covers the spindle

     
Operating Temp Operating Pressure
0C Min 0C Max PSI (Max)
-35 90 400
 
Model Connection
CAV- 76 1/4" Flare 1/4" NPT
CAV- 66 1/4" Flare 1/4" Flare
CAV- 98 3/8" Flare 3/8" Flare
CAV- 99 3/8" Flare 3/8" NPT
Model DIMENSIONS(MM) Weight
H 1 H 2 L 1 gm
CAV- 76 67 44.5 26 80
CAV- 66 67 44.5 26 80
CAV- 98 75 48 31 120
CAV- 99 75 48 31 120
   
   
  Angle Shut Off Valves (ODS)
 


 
Manual / Wiring Diagram
 

Application

These angle shut off valves are designed for installation on commercial refrigerating systems and on civil and industrial air-conditioning systems.
They are amongst many applications, used to isolate various devices like driers, receivers etc. They have large orifices to keep pressure drops to a minimum. These valves are suitable for all CFC’s and HCFC’s except Ammonia.

 
Installation

The brazing of these valves with solder connections should be carried with care using a low melting point filler material.

 
Construction

Investment Cast Body - CF.8 /S.S.304

 

Spindle - Steel

 

Seat - Steel

 

Gland packing - 99% Graphite

 

Springl - S.S.

   
Model Size ODS Operating Temp Operating Pressure
0C Min 0C Max PSI(Max)
CAV - 32 1.3/8"

-35

90 400
CAV - 32 1.5/8"
CAV - 50 2.1/8"
   
   
  Globe Valves
 


 
Manual / Wiring Diagram
 

Application

These globe valves are designed for installation on commercial refrigerating systems on civil and industrial air- conditioning systems.
They are amongst many applications, used to isolate various devices like driers, receivers etc. They have large orifices to keep pressure drops to a minimum. These valves are suitable for all CFC’s and HCFC’s except Ammonia. They can be used to Isolate a drier or similar device.

 
Installation

The brazing of these valves with solder connections should be carried with care using a low melting point filler material.
It is necessary to remove the bonnett assembly with spindle and cap prior to brazing the valve.
Re-assemble the valve only once the valve has cooled completely and reached room temperature.

     
 

Model

DIMENSIONS (MM)

H H1 L Q A M

CGV-15

135 27 81 55 97 5/16"BSW

CGV-22

135 27 81 55 97

5/16"BSW

CGV-28

145 32 82 60.5 100

3/8"BSW

CGV-32

160 35.5 96 70 100

3/8"BSW

CGV-40

179 38 101 74 130

3/8"BSW

CGV-40

240 40 132 87 146

5/16"BSW

 

Model

Size ODS

Operating Temp

Operating Pressure

    0C Min 0C Max PSI(Max)
   CGV - 15 5/8" -35 90 400
   CGV - 20 7/8"
   CGV - 28 1.1/8"
   CGV - 32 1.3/8"
   CGV - 40 1.5/8"
   CGV - 50 2.1/8"
   CGV - 80 3.1/8"
   CGV - 90 3.5/8"
   CGV - 100 4.1/8"
 
   
 
  Ball Valves
 


 
Manual / Wiring Diagram
 

Application

Petroleum, Petrochemical, Chemical, Refrigeration,
Air-conditioning and engineering industries. Valves are compatible with Ammonia, CFC, HCFC, Oil, Air, Chemicals, Gas, Acids, Alkalies etc. amongst many other media.

 
Installation

The three piece design makes the Series C-44 valve the most easily maintainable valve in its type. By removing three body connector bolts and loosening the fourth, the body can be swung away using the fourth bolt as a fulcrum, to carry, out any maintenance on the valve. This feature allows the valve to be online and considerably reduces down time.

     
   

MATERIAL SPECIFICATIONS

Name Of
Part
Carbon Steel
Valve
Stainless Steel
Valve
  Body ASTM-A352
L.C.B
ASTM A351
Gr.CF 8
  Body Connector
  Ball AISI 304 Gr.CF 8
  Seat Virgin PTFE
  Stem Stainless Steel AISI 304
Virgin PTFE
  Body Seal
  Gland Pancking 35% Carbon Filled PTFE
  Stem Seal
 

Model

SCREWED/ SOCKET-WELD END (IN MM, UNLESS SPECIFIED

Weight

DN INCH A B C D+0.25 E H Kg
  DN15(1/2") 1/2" - 5/8" 64 45 122 21.8 9.7 11.2 0.6
  DN20(3/4") 7/8" 75 54 122 27.4 12.7 14.2 1
  DN25(1") 1.1/8" 94 75 148 34.1 12.7 22 1.7
  DN32(1.1/4") 1.3/8" 109 73 182 42.7 12.7 25 2.5
  DN40(1.5") 1.5/8" 118 73 182 49 12.7 32. 3.7
  DN50(2") 2.1/8" 127 83 182 61 12.7 38 5
  DN65(2.5") 2.5/8" 145 260 230 77.5 15.9 50 8.5
  DN80(3") 3.1/8" 172 280 230 91 20 63 11.5
  DN100(4") 4.1.8" 185 295 230 117.5 25 72 18
  DN125(5") 5.1/8" 230 295 230 142 25 96 25
   
   
  Non Return Valve (Check Valve)
 


 
Manual / Wiring Diagram
 

Application

These check valves are designed for installation in liquid, suction and hotgas lines on commercial refrigerating systems and on civil and industrial air-conditioning systems.

 
Construction   The main parts of the valves are made with the following materials :
 

extruded brass as per BS-218
  stainless steel for the spring
  neoprene rubber for outer seal
  PTFE for seat
 
Installation

The valves can be installed in any section of a refrigerating system, where it is necessary to avoid an inversion of the refrigerating flow.
Before connecting the valve to the pipe it is to make sure that the refrigerating system is clean. Infact the valves with PTFE seats are particularly sensitive to dirt and debris. Furthermore check that the flow direction in the pipe corresponds to the arrow stamped on the body of the valve.

   
Model DIMENSIONS Weight
  H D gm
   NRV- 6     58.5     25.4     90
   NRV- 10     61     25.4     100
   NRV- 12     72     29     150
   NRV- 15     83     36.5     230
 
    Operating Temp Operating Pressure
Model Size Flare 0C Min 0C Max PSI (Max)
  NRV - 6 1/4" -35 90 400
  NRV - 10 3/8"
  NRV - 12 1/2"
  NRV - 15 5/8"
 
 
  Pilot Operated solenoid Valve
 


 
Manual / Wiring Diagram
 

Principles of operation

The principle upon which the 180 Solenoid Pilot Control influences the expansion valve action is by the creation of a pressure under the valve diaphragm which is higher than the bulb pressure. This is how it is accomplished.
The type 180 has two parts, both in the the valve body-one high pressure and one low pressure. When the solenoid coil is energized, the plunger moves upward sealing off the high pressure port. With the high pressure excluded from the pilot control, true suction pressure acts on the underside of the expansion valve diaphragm through the equalizer line and the low pressure port.
When the solenoid coil is de-energized, the low pressure port is closed, thereby closing the equalizer line from the valve to the suction line. The high pressure port is open and liquid line pressure is applied to the underside of the thermostatic expansion valve diaphragm.
This high side pressure instantly overcomes the bulb pressure and supplements the valve spring, immediately closing the port of the expansion valve.

 
Application

The type 180 Solenoid Pilot Control suitable for all refrigerants except Ammonia
The 180 Solenoid Pilot Control is applicable for Refrigerants 12,22,500 and 502, as a supplementary device to Thermostatic Expansion Valves. It is used in place of capacity solenoid valves for positive shut-off of liquid lines.
The Solenoid Pilot Control does not directly close the liquid line, but acts on the thermostatic expansion valve causing the expansion valve to close. The 180 is installed in the external equalizer line of the thermostatic expansion valve, and has a third 1/4 "connection from the liquid line.

   
   
  Vibration Absorber
 


 
Manual / Wiring Diagram
 

Application

Both the suction and discharge lines transmit vibration from the compressor to the other cooling system components and the building. This vibration can cause unwanted noise and deterioration of tubing, leading to leaks of refrigerant and capillary tube control fluids.
The vibration absorber consists of a special flexible metallic hose with an overbraid. The end connections may be of solder connections, flanges or threaded male ends. Refrigerant travelling too quickly along with convolouted inner diameter of the absorber may cause whistling.
Vibration absorbers eliminate the need of looping copper tubing to avoid vibration. Vibration absorbers are not designed for compression or extention, so they must be oriented parallel to the crankshaft, not at right angles to it. If the absorber is mounted improperly, it will resist the rocking of the compressor instead of flexing along with it. For maximum control of vibration, two absorbers should be placed in each line, one for horizontal movement and the other for vertical movement. Do not stress, compress or twist the absorbers during installation.
Install the unit as close to the compressor as possible, and at right angle to motion.
Anchor the refrigerant piping, as shown above, at the end of the unit furthest from the vibration source. Also, install the unit horizontally,   wherever possible. Allow sufficient space for the unit so that it will not be subject to static compression or tension after brazing it into place. Units should be installed in a straight line; they are not intended to compensate for offset piping.
If the unit is installed in an area where condensate can accumulate on it, cover the unit with a waterproof barrier (such as heat shrinkable PVC tubing or rubber tape) to prevent moisture from freezing under the braid and ferrules, causing the unit to rupture.

 
Construction

Hose : Stainless Steel 304

 

Braid : Stainless Steel 321

 

End connection : Copper

 
Installation

Castle vibration absorbers function best when installed as close to the compressor as possible and perpendicular to the major vibration direction as possible.
Although the copper tube ends of the unit are attached by high temperature brazing alloys having a high melting point, care should nevertheless be exercised when making the sweat connections. Direct the torch flame away from the braid. Clean excess flux from the unit to prevent possible corrosion and premature failure.
For situations of severe vibration, install two units in series at right angles to one another as shown in

   
   
  OS Series Oil Separator
 


 
Manual / Wiring Diagram
 

Features

Hermetic welded construction with steel oil return relief (1/4” or 3/8” SAE connectors)

 

Maximum working pressure: 450 PSI

 
Part-

ODF

description

Mesh

 

Resister

 

Oil concentrator

 

Floating Ball

 

Needle valves

   
    Specifications  
 
Model ODF
(IN)
Dimensions Refrigeration Capacity (KW) under the appointed temperature
R22/R407C R502 R134a R404A/R507
L(in) A(in) -400c +50C -400c +50C -400c +50C -400c +50C
OS-55824 1/2 9.44 4.00 5.31 7.08 5.31 7.08 3.54 6.2 5.31 7.0
OS-55833

3/8

9.44

4.00

5.31 7.08 5.31 7.08 3.54 6.2 5.31 7.0
OS-55855

5/8

 12.79

4.00

15.9 19.5 16.8 20.36 11.5 15.9 14.16 19.0
OS-55877

7/8

15.74

4.00

24.8

28.3

26.6

30.09

16.8

23.0

23.01

30.0

OS-55889

1-1/8

16.92

4.00

31.9

37.2

33.6

40.71

23.0

30.1

30.09

38.0

OS-559011

1-3/8

15.16 6.00 40.7 47.8 42.5 51.33 28.3 40.7 37.17 49.0
OS-559011

1-3/8

16.93 6.00 49.6 62.0 56.6 61.95 33.6 46.9 49.56 60.0
OS-559213

1-5/8

16.93 6.00 56.6 63.7 70.8 84.96 41.6 56.6 61.95 81.0
OS-559417

2-1/8

19.30 6.00 88.5 106.0 106.0 123.90 63.7 89.4 92.04 121.0
   
   
 

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