The Gardner Denver PAH pairs a 275 HP, 175 SPM power end with an 8 in stroke and liner choices that reach 3117 PSI at the 3 in size. Its frame, eccentric shaft, connecting rod and crosshead are made of nodular cast iron, giving the power end the rigidity needed under sustained high loads. DLSY stocks 224 replacement items for this model, including liners, pistons, valves and springs.
FAQ
Which liner sizes does the Gardner Denver PAH use?
Factory data lists liner options of 3 in, 3.25 in, 3.5 in, 4 in, 4.5 in and 127 mm. Working pressure rises as bore size falls, from 1122 PSI at 127 mm up to 3117 PSI at 3 in.
What is the maximum pressure rating of the PAH?
The factory-rated maximum working pressure is 3117 PSI, achieved with the 3 in liner at the rated 175 SPM. Rated input power is 275 HP with an 8 in stroke.
Do you carry PAH pistons, valves and springs?
Yes. Of the 224 PAH items we stock, the fluid end range includes liners, pistons, valves and springs, alongside power-end wear parts such as crankshaft bearings, seals and sheaves.
Can DLSY ship PAH parts internationally?
Yes. We export under HS code 84139100 to Canada, the United States and international oil & gas markets, with export documentation arranged by our team.
How do I order the right PAH liner?
Tell us the bore size you run — for example 4 in or 3.5 in — plus your target working pressure, and we will match the liner and confirm availability from stock.