YIDA well service pumps are built for today’s rugged pumping applications such as fracturing, acidizing and matrix stimulation. YIDA field-proven and time-tested well service pumps are available in triplex and quintuplex designs. YIDA manufactures quality and reliability into every well service pump that comes off the production line. YIDA well service pumps offer: The JWS-340 is a 340 horsepower 5” stroke intermittent duty single acting well service piston/plunger pump. It is equipped with a forged alloy steel mono-block fluid end and rated at pump speeds up to 450 RPM and maximum discharge pressures up to 10,000 psi. It can be equipped with multiple external gear reduction units.