NATIONAL 12P-160 MUD PUMPS   Item Description Part Number Type of pump 1 Liner, Guide Upper 1292017 12P160 2 Connecting Rod 1292007 12P160 3 Liner, Guide Lower 1292017 12P160 4 Suction Manifold 1292370 12P160 5 Suction Manifold 1292371 12P160 6 Crosshead, Left Hnad 1292090 12P160 7 Crosshead, Right and Center 1292015 12P160 8 Bull Gear 1292008 12P160 9 Pin, Crosshead 1292028 12P160 10 Discharge Module 1292241 12P160 11 Suction Module 1292244 12P160 12 Piston Rod 1292147 12P160 13 Pony Rod   12P160 14 Sedal, Retainer 1292174 12P160 15 Liner Clamp 1292165 12P160 16 Sub Rod 1292146 12P160 17 Q.D. hub 1289327 12P160 18 BONNET 1260318 12P160 19 SPROCKET 1260044 12P160 20 SPROCKET  X13-2058 12P160 21 SPROCKET  X13-2068 12P160 22 BODY STRAINER CROSS 1290268 12P160 23 Flange, Valve Cover 80704003 12P160 24 Flange,valvecover 9-1/2 IN ACMC THD, SW STYLE  7.5K SW SW4476 12P160 25 7.5k Gland, Screw SWS 12P160, W2214,W2215    SW4697 12P160 26 Plug, valve cover SWS 7.5K   4609-25/01799615 12P160 27 Suction Manifold Gasket,12P160   12P-160   28 SOUTHWEST 12-P-160 THREADED CAP 12PCAPSW 12P-160   29 COVER, FAST CHANGE SCREW TYPE VALVE 1292352 12P-160   30 GLAND, THREADED 12P-160  7500 RATE  80-704-003 12P-160   31 THREADED RING 7500P PSI 80-704-003 12P160 MISSION L 32 SCREW GLAND 7500 PSI  80-704-004 12P160 MISSION L

Properties --- Multiple special designs --- Equal power transmission --- High loads,low elongation and long service life --- Excellent operational safety --- Temperature range from -55℃ to 70℃ --- Static conductive to ISO1813 --- Oil,heat,Ozone and abrasion resistant

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API Shear pin relief valve for mud pumps Specifications 1 Shear pin relief valve 2 Type:JA-3 3 Flange / screw thread connection 4 Max pressure: 5500 PSI 5 Max pressure:35Mpa Shear pin safety valve can be connected in two ways, one is threaded connection, and the second is flange connection. It is an insurance of mud pump, before the pump working, according to the cylinder and piston specification determines the rated pressure, the safety valve cover off the shear pin on the clipboard into the pin hole. If the pump head pressure exceeds the rated pressure, shear pin will be cut and mud from the side of the vent valve, play a protective role.