V119/V120 VALVE
OPERATING MANUAL
MAN0022 / A / DRAFT / 19/06/98
MAN0022 / B / ISSUE / 27/07/98
MAN0022 / C / Complete Re-edition / 10/12/1998
INDEX
Description Page number
Ø General characteristics – technical data 4
Ø Dimension 5
Ø Possible uses 6
Ø Possible uses 7
Ø Service specification 8
Ø Simple functional diagrams 9
Ø Duplex functional diagrams“A” 10
Ø Duplex functional diagrams“B” 11
Ø Injectors nr. 1 and 0,7 12
Ø V119 components 13
Components for duplex and accessories 14
Ø Tips and Suggestions 15
Ø Normal Maintenance Operations 16
General characteristics
The V119/V120 valves are the essential element for the production of average-sized and small systems and/or for specific cases where minimum overall sizes and sophisticated results are required, satisfying all requirements of automation and control.
a) Single softening
b) Duplex softening
c) Softening for laboratory purposes.
d) Automatic device for the sterilization of the resins.
The valves are made of material that guarantees the maximum resistance and quality.
The valves have a range of timers for the control of all the operational phases of service and regeneration. These sophisticated electronic timers are in different models: time controllers, volume controllers, volume/time controllers. They allow the programming of all the operational phases according to the type and dimensions of the system.
VALVE SPECIFICATIONS
Operating pressure : from 1.5 to 6 bar
Operating water flow : 2.0 m³/hr
See table 1 for variable values : -
See page 10 for slow rinse water flow : -
Fast rinse water flow (co-current) : from 300 to 1000 l/hr
Static resistance to pressure : 22 bar
Max. quantity of regenerative resin : 40 litres
Operating temperature : from 5 to 40°
Basic materials of the main components : abs + glass fibre
Hub of connections to the tank : 2½”
Inlet/outlet connenctions : ¾” BSP male
DIMENSIONS
Use Specifications
Listed below are all the possible uses of V119/219:
1) in the single softening the sytem has a basic valve and an electronic timer which can be:
a) - by time
b) - by time/volume
c) - by volume
d) - for duplex systems
e) - by time and/or volume, with chlorine producer
The version with chlorine carries out a sterilization phase of the base of resins.
All of the operational phase times are adjustable.
The system can be equipped with remote bypass with different characteristics:
f) automatic proportional remote bypass with mixer of residual hardness
g) automatic proportional remote bypass with mixer of residual hardness and inlet/outlet chlorine sample taker.
2) –the duplex system consists of two valve columns,an electronic timer and a litre counter, so the system is self-suuficient and needs no extra equipment for the exchange of the columns.
Details of the duplex electronics:
a) by volume with regeneration necessary every 96hours (standard 48hours) per column, with or without use of chlorine.
b) modular, that is the column not in use starts up the moment a load greater than a preset level is required (standard 141l/m).
Precautions to be taken during operations of disassembling and assembling of components.
- During the removal and replacing of O-ring type “G” and “H” check that the bases and toroids are perfectly clean. Lubricate with silicon.
- During the assembling of the “C” and “E” connections check that the holes of the “L” locks are clear .Also check that the bases are perfectly clean to avoid leaks. Lubricate with silicon the “L” gaskets.
- Should you disassemble the “D” ring-nut, replace the terminal lid when replacing (only if the small tube is not new), in order to eliminate possible deformations.
- During the disassembling of any type of “V” self-tapping screw, turn the screw slowly in order to avoid it seizing up. When screwing it back in, take care to find the end of the thread and screw without forcing .
Don’t use electric or pneumatic tools! Use only manual tools!
NORMAL MAINTENANCE OPERATIONS
PROBLEM / CAUSE /CORRECTIVE ACTION
Wrong positioning of the piston / Failure of the electronic motor kit 4311-D1 / 1. Replacement of the electric motor kit.a) - take off the cover 4312 page. 13 and disconnect it from the timer.
b) – unscrew the three screws 118 page 13 of the electric motor kit
c) - unscrew the small threaded shaft 4015-AM page 13 , by turning it clockwise and moving the crown of the gear 4311/4 page 13 until they come apart.
d) – reposition the new motor kit and follow the above points in the reverse order.
NOTE: when replacing the screws, make sure you turn them anti-clockwise, until you find the initial point of the thread, then screw.
No suction / Insufficient pressure / 2. If during the suction phase the pressure is lower than 1.5 Bar, clean the inlet filter of the system.
If after this operation there is no pressure increase the pressure supply is too low.
Steps should be taken accordingly..
No suction / Clogged holes / 3. If at the paragraph 2. the pressure is higher than 1.5 Bar, check the internal filter inside 4211/2 page 13 as follows.
a) - remove the electric motor kit as indicated in paragraph 1. Points a), b), c)
b) – remove the small lever 4213-4 page 13.
c) – extract the injector 4214 page 13, check and carefully clean all transversal holes and internal holes with particular care.
d) – if the injector holes are not clogged, it is possible that the internal small filter 4211-2 page 13 is clogged . Extract the small flange 4212-3 page 13, then dismantle the distancer set and relative O-rings and proceed to the cleaning of the small filter.
NOTE: to remove the distancer set and O-rings use a disc with 3 - 4mm diameter with L-shaped head and without sharp edges, in order to avoid damaging the components to be removed.
Should this operation be necessary, it is advisable to replace all O-rings.
Use some silicon to lubricate. For reassembly, follow carefully the sequence shown on page 13.
Water leakage at drain / Piston with scratched sliding surfaces / 4. Replace the piston:
a) - dismantle the electric motor kit as indicated in paragraph 1. Points a), b). c)
b) – dismantle the small lever 4213-4 and the flange 4212-3as described in paragraph 3. points b) and c), then extract the piston 4313-1 page 13 and replace it. Reassemble following the reverse procedure. Lubricate with silicon. Remove the lever 4213-4 page 13.
Leakage of hard water at drain / Damaged O-rings / 5. Replace the third O-ring 4210-ORP and 4210-ORG page 13 starting from the bottom of the cylindric casing chamber. Follow the procedure previously described
Leakage of soft water at drain / Damaged O-rings / 6. Replace the fourth and sixth O-rings 4210-ORP and 4210-ORG page 13 starting from the bottom of the cylindric casing chamber. Follow the procedure previously described
Leakage at the piston diameter from protection vessel side / Damage O-rings / 7. Replace the first piston O-ring 4210-ORP and 4210-ORG page 13 starting from the bottom of the cylindric casing chamber. Follow the procedure previously described
Piston with scratched sliding surfaces / 8. Replace the piston as previously described in paragraph 4.
Leakage at the piston diameter from motor kit side / Damaged O-rings / 9. Replace the first O-ring 4210-ORP and 4210-ORG page 13 starting from the support surface of the flange 4212-3 page 13. Follow the procedure previously described.
Piston with scratched sliding surfaces / 10. Replace the piston as previously described in paragraph 4..
Note: during the above operations, always lubricate with silicon. Never use electric or pneumatic tools, only manual tools.
To extract the internal spacers, use lipped tools without sharp edges, to avoid damaging the components.
Important: when it has been necessary to disassemble more than a third of the spacers, the replacement of all the O-rings is recommended.
Page 1 of 17