Howden Screw Compressor Here

The cast-iron casing makes these compressors significantly heavier than rotary vane or scroll alternatives. For mobile or space-constrained installations (e.g., offshore platforms), this is a real issue.

Compared to older screw compressors, the Howden delivered a 12-15% reduction in specific power (kW per CFM). The asymmetric rotor profile minimizes blow-hole losses. For a 500 kW motor, this saves roughly $15,000–$20,000 annually in electricity. howden screw compressor

The slide valve and stepless capacity control are smooth. From 100% down to 25% load, the compressor maintains stable discharge pressure without surging. The Vi (volume ratio) adjustment is also effective for varying suction pressures. The asymmetric rotor profile minimizes blow-hole losses

Unlike many competitors, Howden screw compressors handle dirty or corrosive gases well (with proper materials selection). We’ve compressed hydrocarbon mixtures with liquid carryover and minor particulates without rotor seizure. The robust bearings (SKF/FAG) are designed for thrust loads common in gas duty. From 100% down to 25% load, the compressor

First cost is your primary metric, or your application is light-duty (less than 4,000 hours/year).

The Howden screw compressor is the “Mercedes G-Wagon” of rotary screws: over-engineered, expensive to buy and fix, but nearly unstoppable when properly maintained. It’s not for everyone, but for critical process applications, it’s a justifiable investment.