3 | Transport
10 / 36
Instruction Manual Supplement DOLPHIN VL Systems ATEX_EN_en
At the operating liquid inlet the Y-strainer (ST) prevents particles greater than 0.1 mm
entering the vacuum pump.
The manual fresh liquid isolation valve (IV) allows the system liquid inlet to be isolated
whilst the strainer is cleaned.
Operating liquid control valve (OPC) allows the operating liquid flow rate to be regulat-
ed for optimum performance of the system.
Suction non return valve (NRV) prevents operating liquid from flowing back into the pro-
cess when the system stops under vacuum.
The system is stopped if either the flow switch (FS) or resistance thermometer (TSA) lim-
its are reached.
2.7.3 Total Recovery (Closed Circuit)
All the operating fluid is recirculated within the system allowing liquid other than water
to be used as the operating liquid. Constant liquid temperature in the system is main-
tained by a heat exchanger with a separate cooling liquid supply. The process gas and
operating liquid are discharged from the vacuum pump together into the separator ves-
sel (SV), where they are separated. The gas leaves through the discharge connection
whilst high operating liquid level (condensing suction load) is prevented by excess liquid
draining from the separator overflow connection (OPO).
Through the site control system (by others) the operating liquid level is increased by the
solenoid valve (OPV) opening with low level signal from the low level switch. Valve clos-
es on signal from the high level switch. The level indicator (LI) provide visual indication
of the liquid level in the system. At the operating liquid inlet the strainer (ST) prevents
particles greater than 0.1 mm entering the vacuum pump.
The manual fresh liquid isolation valve (IV) allows the system liquid inlet to be isolated
whilst the Y-strainer is cleaned.
Operating liquid control valve (OPC) allows the operating liquid flow rate to be regulat-
ed for optimum performance of the system.
Suction non return valve (NRV) prevents operating liquid from flowing back into the pro-
cess when the system stops under vacuum.
The system is stopped if either the flow switch (FS) or resistance thermometer (TSA) lim-
its are reached.
3
Transport
WARNING
Suspended load.
Risk of severe injury!
• Do not walk, stand or work under suspended loads.
WARNING
Lifting the VL system incorrectly.
Risk of severe injury!
Risk of damage to the machine!
• Do not lift the entire system by the vacuum pump and the motor.
• Check the machine for transport damage.
The machine weight is marked on the nameplate.
• When disassembling the system lift each component separately.
• Make sure to comply with the suitable lifting method which is described in each in-
struction manual of the separate machine.
Summary of Contents for DOLPHIN VL 0100 A
Page 34: ...Note...
Page 35: ...Note...
