Engineering manual - SAB 193-233-283 S A-frame (including ATEX)
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008831 en 2022.02
Components
8. Components
This chapter describes the product components and the different accessories that can be
mounted.
This chapter is primarily intended for constructing engineers, service technicians, future cus-
tomers, sales personnel and personnel in the process of training.
General
The screw compressor unit is supplied as a complete plant mounted on a base frame. All com-
ponents are connected internally.
Subcomponents
Base frame
Welded steel sections, treated and painted.
Motor
The standard SAB 193, 233, 283 units are available with motors in different sizes, with different
enclosures, power and supply voltage.
• Makes: Schorch and Leroy-Somer
• Supply voltage: 3 x 400V 50 Hz or 3 x 440V 60 Hz
• Protection class: IP 22/23 or IP 54/55
• Size: IEC 160-355
The necessary motor power depends on the unit operating conditions. The motor size can be
determined on the basis of the calculations in the calculation program COMP1. See also sub-
section 6.6 Selecting electric motor.
Transmission system
The power transmission between motor and compressor takes place by means of a coupling.
The coupling types are described in detail in chapter 7. Installation instructions.
Oil separator
The oil separator is described in detail in section 4.12 Compressor oil separation system. All in-
ternal piping connections to the oil separator have been carried out on the unit. The stop valve,
pos. 204, is welded on the discharge gas line.
Oil coolers
The oil coolers are described in detail in chapter 4. Technical description. The size of the oil
coolers is calculated in COMP1 on the basis of the plant operating conditions.
Economiser
SAB 193, 233, 283 is available with economiser system. The economiser systems are de-
scribed in section 4.33 Economiser, high-stage (optional).
Oil pump
The oil pump and the pumping principle are described in detail in chapter .
Note: Remember to check the direction of rotation before start-up.
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