Spirax Sarco CA44 Installation And Maintenance Instructions Manual Download Page 10

IM-P148-37 

 ST Issue 3

10

After installation or maintenance ensure that the system is fully functional. Carry out tests on 

any alarms or protective devices.

4. Commissioning

The CA44(S) and CA46(S) float traps  are continuous discharge traps, removing liquid from 

air and gas systems. As soon as liquid enters the main chamber of the trap, the float rises 

and the lever mechanism attached to it opens the main valve - keeping the system drained 

of liquid at all times. When air or gas arrives, the float drops and shuts the main valve tightly 

against the seat. The balance line is necessary to prevent the trap from becoming air locked. 

Float traps are renowned for their instantaneous load handling capability, clean tight shut-off 

and resistance to waterhammer and vibration.

5. Operation

Note: Before actioning any installation observe the 'Safety information' in Section 1.

Referring to the Installation and Maintenance Instructions, name-plate and Technical 

Information Sheet, check that the product is suitable for the intended installation:

3.1

 

Check materials, pressure and temperature and their maximum values. If the maximum 

 

operating limit of the product is lower than that of the system in which it is being fitted, 

 

ensure that a safety device is included in the system to prevent overpressurisation.

3.2 

Determine the correct installation situation and the direction of fluid flow.

3.3 

Remove protective covers from all connections.

3.4 

  The trap should be fitted in the horizontal plane with the inlet at the top so that the float 

 

mechanism is free to rise and fall in a vertical plane.

 

The trap must be fitted below what it is draining. Point the arrow on the name-plate  

 

downwards. One of the advantages of the float trap for draining air systems is that no air 

 

bleed is required for satisfactory operation. However, because the trap has no air bleed 

 

it could under some circumstances become air or gas locked. 

 

Make sure that the balance line is piped back to the upstream side.

 

A balance line is essential for the correct operation of this product.

 

For convenience of maintenance it is recommended that a union is fitted in the balance 

 

line near to the trap cover.

Note:

 If the trap is to discharge to atmosphere ensure it is to a safe place, the discharging fluid               

may be at a temperature of 100

°

C (212

°

F).

3. Installation

Summary of Contents for CA44

Page 1: ...General product information 3 Installation 4 Commissioning 5 Operation 6 Maintenance 7 Spare parts Copyright 2015 Printed in GB CA44 CA44S CA46 and CA46S Air and Gas Traps Installation and Maintenanc...

Page 2: ...e on other fluids may be possible but if this is contemplated Spirax Sarco should be contacted to confirm the suitability of the product for the application being considered ii Check material suitabil...

Page 3: ...8 Temperature Allow time for temperature to normalise after isolation to avoid danger of burns Viton CA44 and CA46 main valve cone If the the main valve cone made of Viton has been subjected to a tem...

Page 4: ...age in environments where they may be exposed to temperatures below freezing point 1 15 Disposal Unless otherwise stated in the Installation and Maintenance Instructions this product is recyclable and...

Page 5: ...soft valve cone and has horizontal flanged connections The cover will be drilled and tapped BSP or NPT for the purpose of fitting a balance line Body and cover castings are produced by a T V approved...

Page 6: ...ed PN and JIS KS flanges will be provided with BSP balance line and ASME flanges with an NPT balance line Limiting conditions Maximum body design conditions PN40 PMA Maximum allowable pressure 40 bar...

Page 7: ...ferential pressure bar psi CA44 32 32 0 464 00 32 0 464 00 29 0 420 50 20 0 290 00 12 0 174 00 CA44S 4 5 4 5 65 25 4 5 65 25 4 5 65 25 3 4 49 30 2 0 29 00 CA44S 10 10 0 145 00 9 5 137 75 6 8 98 60 5 5...

Page 8: ...nditions Maximum body design conditions PN40 PMA Maximum allowable pressure 40 bar g 580 psi g TMA Maximum allowable temperature 400 C 752 F PMO Maximum operating pressure 40 bar g 580 psi g TMO Maxim...

Page 9: ...150 DN40 and DN50 only PMX Maximum differential pressure Depending on the specific gravity of the liquid being drained Specific gravity Trap 1 0 0 9 0 8 0 7 0 6 Maximum differential pressure bar psi...

Page 10: ...ssure and temperature and their maximum values If the maximum operating limit of the product is lower than that of the system in which it is being fitted ensure that a safety device is included in the...

Page 11: ...IM P148 37 ST Issue 3 11 Fig 5 Installation with balance line arrangement Balance line CA14 air trap draining small receiver Air receiver Strainer...

Page 12: ...Tighten the assembly set screws 7 to the recommended torque see Table 1 Check the operation by raising and lowering the float 8 several times making sure that the valve head is centering properly on t...

Page 13: ...x 20 2 5 2 8 1 8 2 1 19 DN40 10 A F M6 x 20 10 12 7 9 DN50 13 A F M8 x 20 20 24 15 17 Fig 6 CA44S and CA46S DN40 and DN50 Note The trap shown is the DN40 and DN50 CA44S CA46S However the type of inte...

Page 14: ...The CA44 and CA46 use a soft Viton valve head where as the CA44S and CA46S use a stainless steel valve head Note The trap shown is the DN40 and DN50 CA44S CA46S However the type of internals and the...

Page 15: ...IM P148 37 ST Issue 3 15 Fig 7 CA44S and CA46S DN40 and 50 see note under Available spares 3 6 16 5 15 14 7 8 Main valve assembly with float 9 DN40 and 50 CA44S and CA46S only CA44 and CA46 only...

Page 16: ...IM P148 37 ST Issue 3 16...

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