气体压缩机

Because the gas decides what the machine can be made of. Ammonia attacks copper, wet biogas makes acid, oxygen will ignite a trace of oil, and hydrogen leaks through joints that hold air perfectly well.

It follows from the pressure ratio and the flow. High ratio and modest flow is reciprocating, continuous duty with wet gas is screw, high flow at modest ratio is centrifugal.

The gas composition, the suction pressure and temperature, the discharge pressure and the flow. Then the area classification and whether the duty can be interrupted.

Because there is no such thing as a catalogue selection for a gas machine. Publishing one would invite you to pick a model before anyone has seen a gas analysis.

Longer than an air machine, because it is built to your conditions rather than picked from stock. We give a programme with the quotation rather than a stock lead time.

That depends on the gas, the site and the country. We build and document to the standard your regulator requires and say which that is before the order.

Yes. Our engineers are in Pakistan, the UAE, Saudi Arabia, Oman and Türkiye, and parts for these machines are held rather than shipped on demand.

Tell us the range the plant will actually see rather than one sample. A machine selected on a single analysis can be well off its curve on another.

It depends on whether the duty can stop. Where it cannot, two machines with automatic changeover cost less than an unplanned shutdown, and we will say so.

Yes: separation upstream, the machine, cooling, the control system and the safety instrumentation, engineered together rather than bought separately and joined up on site.