a central bore therethrough chamfered on one face for centering the valve ball 24 on the valve seat 23 ball 24 is then placed on the seat and ball insert 26 is placed around ball 24 and against seat 23 the traveling valve body 21 is threadably secured to connector 28 with an o ring 27 to seal the traveling valve 20 to the connector 28 connector 28 has the same outside diameter as traveling valve body 21 and would be secured to a plunger pin of a plunger with the same outside diameter instead of connector 28 traveling valve 20 could be threaded upon the plunger pin of the plunger having the same outside diameter referring now specifically to fig3 and 4 there is illustrated schematically a sucker rod operated pump generally referred to as pump 35 positioned within tubing string 31 which is within casing 30 the pump 35 in fig3 is shown on the downstroke as indicated by arrow 32 and in fig4 on the upstroke as indicated by arrow 33 reference hereafter to the parts of the traveling valve the indicia tv will be used and the standing valve the india sv will be used within the tubing 31 is pump barrel 36 housing plunger 37 which is a slight interference fit between the barrel 36 and the plunger 37 threaded.