Spring loaded ball valve refers to the ball valve that can return to the original starting position under the action of internal spring. Spring loaded ball valve is suitable for 1/4 rotary handle operation of the ball valve, is generally composed of two/three pieces of the ball valve and a spring lever or handles unit to return the valve to the fully open position, also known as spring automatic return ball valve or spring self-closing ball valve. The Spring loaded ball valve can be offered to include socket weld, butt weld and flanged, they are used in applications where positive return to the closed position is required following momentary or short periods of operation for food, pharmaceutical, oil, chemical, metallurgical, mechanical process and other industries. 
 

Spring loaded ball valve specification

Size: Up to DN100

Pressure: Up to Class 600

Standards: API 608/API 6D

Test standards: API 598

Nominal diameter: DN15 — DN100 (mm)

Connection: Thread, flanged

Temperature range: ≤-180℃

Body material: Cast steel WCB, Stainless steel 304/316

Spring loaded ball valve feature