A pump for transferring fluid between a fluid reservoir and at least one inflatable penile prosthesis, the pump comprising: a pump housing having a fluid passageway (24, 84); first and second fluid ports (18, 20, 21) in fluid communication with the fluid passageway (24, 84) and operatively connectable to a fluid reservoir and at least one inflatable penile prosthesis, respectively; a pump bulb in fluid communication with the fluid passageway (24, 84) that can be operated to transfer fluid between the first and second fluid ports through the fluid passageway; a poppet (28, 78) positioned within the fluid passageway, the poppet having an extending portion (30, 80) extending away from a body portion of the poppet, the extending portion having a sealing surface biased toward a valve seat within the fluid passageway; and a flange (44, 82) extending from a surface of the fluid passageway (24, 84) and toward the interior of the fluid passageway and spaced from the valve seat within the fluid passageway, characterized by further comprising: a first fluid path between the extending portion (30, 80) of the poppet and the flange (44, 82) when the extending portion of the poppet is in contact with the flange (44,82) wherein the first fluid path can allow fluid to pass from one side of the flange (44, 82) to the other; and a second fluid path providing fluid communication between the fluid passageway and a fluid bypass chamber when the extending portion (30, 80) of the poppet is in contact with the valve seat. a pump housing having a fluid passageway (24, 84); first and second fluid ports (18, 20, 21) in fluid communication with the fluid passageway (24, 84) and operatively connectable to a fluid reservoir and at least one inflatable penile prosthesis, respectively; a pump bulb in fluid communication with the fluid passageway (24, 84) that can be operated to transfer fluid between the first and second fluid ports through the fluid passageway; a poppet (28, 78) positioned within the fluid passageway, the poppet having an extending portion (30, 80) extending away from a body portion of the poppet, the extending portion having a sealing surface biased toward a valve seat within the fluid passageway; and a flange (44, 82) extending from a surface of the fluid passageway (24, 84) and toward the interior of the fluid passageway and spaced from the valve seat within the fluid passageway, characterized by further comprising: a first fluid path between the extending portion (30, 80) of the poppet and the flange (44, 82) when the extending portion of the poppet is in contact with the flange (44,82) wherein the first fluid path can allow fluid to pass from one side of the flange (44, 82) to the other; and a second fluid path providing fluid communication between the fluid passageway and a fluid bypass chamber when the extending portion (30, 80) of the poppet is in contact with the valve seat. a first fluid path between the extending portion (30, 80) of the poppet and the flange (44, 82) when the extending portion of the poppet is in contact with the flange (44,82) wherein the first fluid path can allow fluid to pass from one side of the flange (44, 82) to the other; and a second fluid path providing fluid communication between the fluid passageway and a fluid bypass chamber when the extending portion (30, 80) of the poppet is in contact with the valve seat.