D-Style Oil-Free Reciprocating Compressors

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Corken's D-style vertical compressors utilize two sets of V-ring packing per piston rod and one (single) distance piece. The lower packing set has an adjustable packing screw used to maintain the sealing performance over the life of the packing. With the exception of models D791 and D891, all D-Style compressors deliver oil-free gas compression. Typically used in toxic and corrosive applications where oil-free gas is required and leakage containment is desirable.
Piston displacements up to 117 cfm (198.8 m3/hr)
Working pressures up to 1,200 psi (82.8 bar g)
Brake horsepowers up to 45 hp (34 kW)
Maximum outlet temperature: 350 °F (177 °C)

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-          A D-Style configuration has two sets of packing per piston rod and delivers oil-free gas compression

-          Utilizes V-ring packing construction that consists of several V-rings, a male and female packing ring, washers, and a spring. Exception: Models D791 and D891 use a combination of V-ring and segmented packing

-          Cylinder sizes are 1.25", 1.75", 2.5", 2.75", 3.0", 3.25", 4.0", 4.5" and 6.0"

-          Single and two stage designs

-          Constructed with a single distance piece

-          Available in seven single stage models (models D91, D291, D491, D491-3, D691, and D891)

-          Available in eight two stage models (models FD151, D191, FD351, D391, WFD551, D590, FD591, and D791)

-          ANSI or DIN flanges available on all models except 590, 791 and 891

-          Water cooled option available on models 351, 391, 551, 590, 591 and 691 only

-          Models D791 and D891 are double-acting designs