2 | Product Description
6 | 40
Instruction Manual DOLPHIN LM 0100-0800 A, LT 0130-0750 A_EN_en
The machine is suitable for continuous operation.
Permitted environmental conditions, see
30].
2.3
Start Controls
The machine comes without start controls. The control of the machine is to be provided in the
course of installation.
2.4
Variants
2.4.1
LM Series
DOLPHIN LMs are single-stage vacuum pumps and operate from atmospheric pressure to 130 hPa
(mbar) ultimate pressure.
2.4.2
LT Series
DOLPHIN LTs are two-stage vacuum pumps and operate from atmospheric pressure to 33 hPa
(mbar) ultimate pressure.
2.4.3
VL System
VL System consists of a DOLPHIN machine either LM or LT and an operating liquid supply system.
Three different layouts are possible:
– Once through cooling / no recovery.
– Partial recovery (open circuit).
– Total recovery (closed circuit).
All of these arrangements have four basic elements:
– Source of the operating liquid (from the water main or reservoir).
– Regulating device to control flow of liquid.
– Means of stopping the flow when the machine is shut off (manual or with solenoid valve).
– Means of separating the gas-liquid exhaust mixture to prevent the build-up of unnecessary back-
pressure.
If the machine is equipped with a VL System (see reference on the nameplate):
●
Consult the supplement to the instruction manual of the VL System for additional information.