Piston Compressors

New Grasso 10 series: A Cool Friend

The new Grasso 10 series offers maximum reliability for a modest investment and low maintenance costs. The series consists of single-stage and two-stage models.

Since it's introduction into Europe in 2000 the Grasso 10 has been such an enormous success that Grasso has decided to make it available worldwide.

Grasso 10 series
Single-stage: 5 types

• Cylinders: 2 to 8
• Swept volumes at 1500 min^-1:145 to 580 m³/h 

Grasso 10 series
Two-stage: 4 types

• Cylinders: 3 to 8
• Swept volumes at 1500 min^-1:145 to 435 m³/h 

Maximum speed: 1500 min^-1 Bore: 110 mm, Stroke: 85 mm
Refrigerants: NH₃, R22, R134a, R404A and R507, others on request 

Grasso RC12E and RC12 series

Grasso RC12E, RC12 series
Single-stage: 6 types

• Cylinders: 2 to 12
• Swept volumes at maximum speed: RC12E:
  398 to 2388 m³/h  RC12: 265 to 1590 m³/h
• Maximum speed: RC12E: 1500 min^-1 (NH₃),
  1200 min^-1 (halocarbons) RC12: 1000 min^-1
• Bore:160 mm, Stroke: 110 mm
• Refrigerants: NH₃, R22, R134a, R404A and R507,
  others on request

Grasso RC12E, RC12 series
Two-stage: 9 types

• Cylinders: 3 to 12
• Swept volumes at maximum speed:  RC12E:
  398 to 1991 m³/h RC12: 265 to 1330 m³/h
• Maximum speed: RC12E: 1500 min^-1 (NH₃),
  1200 min^-1 (halocarbons) RC12: 1000 min^-1
•  Bore:160 mm, Stroke: 110 mm

Grasso RC12E and RC12 compressor series contain the
world's largest number of single-stage and two-stage
compressors within one range.

Grasso RC6 series

Grasso's RC6 series is well known for it's compact design.
The compressors are smaller in size than many other
comparable compressors.

Grasso RC6 series
Single-stage: 3 types

• Cylinders: 4, 6 or 8
• Swept volume at 1450 min-1: 130 to 260 m_/h
• Maximum speed: 1500 min-1
• Bore: 85 mm, Stroke: 66 mm
• Refrigerants: NH3, R22, R134a, R404A and R507, others on request

Screw Compressors

Grasso SH series, high integrated Semi-Pack
Single-stage & economized

• Types: 4 (C, D, E and G)
• Swept volume at 2940 min-1: 230 to 370 m_/h
• Maximum speed: 6000 min-1

Features:

• All anti-frictional bearings
• Low packaging costs due to high
  degree of component integration

Grasso MC Series, Compact screw
Single-stage & economized

• Types: 4 (H, L, M and N)
• Swept volume at 2940 min-1:
  470 to 860 m_/h
• Maximum speed: 4500 min-1

Features:

• All anti-frictional bearings
• Component integration, compact design

Grasso LT Series, high performance screw
Single-stage & economized

• Types: 11 (P, R, S, V, W, Y, Z, XA, XB, XC and XD)
• Swept volume at 2940 min-1:
  805 to 5800 m_/h
• Maximum speed: 3600 min-1

Features:

• Radial slide bearings
• Simple design

Single-Stage Screw Compressor Packages

The range comprises 19 types, which are
subdivided into 3 series: SH, MC, LT.

Features:

• Compact dimensions and simple construction
• High functional safety, long servicing intervals and low maintenance costs
• Very low noise emission and vibration transmission
• Low oil carry-over due to optimized oil separation systems

Two-Stage Screw Compressor Packages

The range comprises 15 types, which are subdivided into 4 series: MC/SH, LT/SH, LT/MC, LT/LT.

Features:

• Low space requirement due to compact design
  with common oil separator, oil circuit, control and monitoring system

Optimized performance with two-stage operation
and interstage cooling

DuoPack Screw Compressor Packages

The range comprises 12 types, which are subdivided into
3 series: SH, MC, LT. In comparison to one large screw
compressor package:

• Stand-by facility
• Improved part load efficiencies

In comparison to two screw compressor packages of the
same size:

• Reduced installation costs

Smaller space requirement

Ammonia Chillers

Grasso I-Line Chillers

For all applications that demand the highest efficiency Grasso have specifically designed the I-Line ammonia chiller series with Grasso screws as well as reciprocating compressors. The I-Line, with a capacity range from 100 to 6000 kW is divided into the following 4 series:

• FX P with a single screw compressor and FX Pduo with two parallel screw compressors, both with flooded evaporation in semi-welded plate type heat exchangers

FX GC with one reciprocating compressor and FX GCduo with two parallel reciprocating compressors, both with flooded evaporation in fully welded shell & plate heat exchangers.

Grasso AC-Line Chillers

As an alternative to the industrial series Grasso can offer the AC-Line of ammonia chillers especially for applications with reduced operating hours per year. The AC-Line, with a capacity range from 100 to 1600 kW, is divided into the following 5 series:

• DX R with a single screw compressor and dry evaporation with shell & tube heat exchangers
• DX LR compact with a single screw compressor and dry evaporation with a shell & tube evaporator complete with air cooled condenser
• The "WŸrfel" DX FKA PT/PK with one semi-hermetic reciprocating compressor and dry evaporation with fully welded shell & plate heat exchangers
• DX FKA with one, two or four semi-hermetic reciprocating compressors and dry evaporation with shell & tube heat exchangers.

DX LFKA with one semi-hermetic reciprocating compressor and dry evaporation with fully welded shell & plate evaporator complete with air cooled condenser.

Automatic Purger


Grasso Self-Limiting Automatic Purger

The Grasso self-limiting Automatic Purger removesnon-condensable gases from the refrigeration system and as a result significantly improves the efficiency and the characteristics of any industrial refrigeration plant. The energy savings are usually so substantial that the initial investment in the purger is recovered over a very short period. The plant is always working at its maximum efficiency reducing the running hours of compressors and condenser fans and therefore increasing the lifetime of the whole installation.

Features:

• Economical
• Fast payback
• Energy saving
• Environmentally friendly
• Compact design (L700 x W330 x H450 mm)
• Simple installation in new and existing
  refrigeration systems

Built according to CE PED regulations

Control Devices

Grasso Electronic Control Device

The Grasso System Control (GSC) is an electronic monitoring
and control device for reciprocating and screw compressors,
packages and chillers.

It provides on-line information on all relevant conditions,
e.g. pressures, temperatures, hours of operation, % of
capacity, safety control, alarm history file. Automatic start-up,
shutdown and capacity control routines are implemented.

Type Grasso 610

Type RC66

Type G

Type H

Type Y

Type SP1, RB-3BH

Type SP2, XC E-6BK

Type LD-2BH

FX Pduo Series

FX GC Series

DX R Series

The "WŸrfel" DX FKA PT/PK Series

Demonstration model of a
Grasso Purger