“AT-2”系列仅装备***法兰。齿轮端盖的设计允许使用2-1/2英寸的美国标准管尺寸，和2英寸的法兰边。目前有三种不同类型：带螺纹的，碰焊，承插焊接。所有AT-2泵特别适合车载应用，或法兰连接是必要的。如果端口作为入口，通过同时提供液体到齿轮组合来减少内部障碍。
有两种基本的结构包括”L”型和”R”型。”AT-2R”和”AT-2L”有相同端口，反方向进入，如下图所示。”H”和”Non-H”型之间更多的区别为：在相同速度时，带着字母”H”型号的有更高的输出功率。
在***大速度时，这些泵的压差性至少为300PSID，液体粘度大约为500SSU。它们的设计为水平底座装备，能直接驱动马达，或使用齿轮减压器，驱动传动带，驱动链条。旁通阀和过滤器是被推荐的另外装备。
***ith二氧化碳泵AT-2L
“AT-2 Series” comes equipped with ***ith design companion flanges only.The gear end cover flange is designed to accept a 2-1/2 inch American Standard Pipe Size,and the side flanges,2-inch. There are ***ailable in three different kinds:threaded,butt-weld,and socket weld.All AT-2 pumps are particularly suitable for mobile applicati***,or where flanged connecti*** are necessary.If the end port is used as the inlet,internal “drag” is reduced by providing liquid to both gear combinati*** simultaneously.
There are two basic configurati*** involving the “L” and the “R” types.”AT-2R” pumps and “AT-2L” pumps h***e the same porting,but turn in opposite directi*** as shown in the drawing below.A further distinction can be made between the “H” and “Non-H” types:models carrying the letter “H” in the model number h***e higher outputs at the same drive speed.
These pumps are capable of differential pressures of at least 300 P.S.I.D.,with liquids around 500 S.S.U. viscosity,at maximum speed.They are designed for horizontal base mounting,and can be direct-motor driven,or used with gear reducers,belt drives,or chain pass valves and strainers are recommended additional equipment.
TYPICAL RATED OUTPUTS
AT-2R, AT-2L,,ATC-2Rand ATC-2L:
12-1/2 GPM at 450 RPM
25 GPM at 900 RPM
50 GPM at 1800 RPM(max.)
AT-2RH, AT-2LH,ATC-2RH,and ATC-2LH:
12-1/2 GPM at 375 RPM
25 GPM at 750 RPM
50 GPM at 1500 RPM(max.)