Positive Displacement Blowers Low Pressure Gas Booster
Series GMD

The GMD series, made by AERZEN, is the universal gastight booster solution for the low pressure range. Equipped with a magnetic coupling, it ensures a maintenance-free sealing concept. Locking systems for sealing the drive shaft are completely eliminated and allow a low-maintenance machine concept. The separation between oil and process side is achieved by a special piston ring seal.

Volume flow:
17,658 to 6,474,6 CFM

Differential pressure (Δp):
2,18 to 14,5 psi

Medium:
Process Gases

Conveying:
Oil-free

The advantages of AERZEN Screw Compressors Series SW at a glance:

Low-maintenance sealing system with magnetic coupling for low operating costs
Robust two-lobe rotor design (gas-tight sealed) for maximum durability
Variety of materials for compatibility with almost all gases
16 rotor sizes allow for high efficiency and adaptation to the individual design case

US Units

Yes

Type of technology: Positive Displacement Blowers
Differential pressure (Δp): 2,18 to 14,5 psi
Volume flow: 17,658 to 6,474,6 CFM
Medium: Process Gases
Conveying: Oil-free

Gas boosters for low pressure applications

The GMD series from AERZEN is the universal gastight booster solution for the low-pressure range. Equipped with a magnetic coupling, it guarantees a virtually maintenance-free sealing concept. Locking systems for sealing the drive shaft are completely eliminated and allow a low-maintenance machine concept. The separation between oil and process side is achieved by a special piston ring seal. The robust two-lobe design allows a design pressure of 7.0 barg according to AD2000/DIN EN 13445. 16 sizes guarantee optimum efficiency and operation conditions for every design case.

Design:

Nodular iron or stainless steel housing with round flanges and O-ring seals.

Sealings:

Shaft sealing by hermetically sealed magnetic coupling. Alternatively oil-purged double-acting mechanical seal with thermosiphon cooling for torques ≥ 600 Nm.

Direction of flow:

Vertically downwards.

Drive:

Direct coupling with motor (type of construction B35 for magnetic coupling or B3 for alternative shaft sealing via mechanical seal).

Design:

Max. pressure increases of 1.0 bar
Splash lubrication
Separation of the oil chambers and the conveying chamber by grey cast iron or PEEK piston seals
Separation of conveying and oil chamber possible through separating gas
Sealing of drive shaft by hermetically sealed magnetic coupling, optionally by oil-lubricated double-acting mechanical seal
Maximum pressure 7.0 bar (g)
Housing sealed with O-ring seals