Valves module, reciprocating pump fluid end structure

The utility model discloses a valves module, reciprocating pump fluid end structure, it is including the valve cavity and the plunger that support the main pump body and support main pump body fixed connection, the plunger passes and supports the main pump body and stretch into in the first cavity in the valves module, the outer wall cover of plunger has primary seal letter subassembly and secondary seal letter subassembly, primary seal letter subassembly sets up at the outer wall of plunger and supports between the main pump body, secondary seal letter subassembly sets up between the outer wall and primary seal letter subassembly of plunger. The utility model provides a primary seal letter subassembly, secondary seal letter subassembly have poured into lubricating grease into, can reducethe friction of plunger and filler, and the reduction is generated heat, improve the life of plunger and filler, but the valves module is the independent assortment in the model of difference, adaptsto various media, can real