4S-V16 (16 bar) Butterfly Valves

Fouress #300 rating high performance butterfly valves are reliable, well proven design provides bi-directional shut-off.

4S-V30 valves are provided with a groove/step on the seat to be held in position between seatring and the body: Under throttled condition, when the valve disc is crack open, the high velocity cannot pull the seat. Hence seat will not get damaged due to high velocity during control duty.

Seal Back-up Ring: will prevent any undue outward movement of the Teflon seat.

The seat is designed to move slightly in the direction of flow: this allows the pressure access to the back of the seat, thus making the seat progressively tighter as the pressure increases. During reverse flow, any deflection of the disc would tend to reduce the tightness but the pressure behind the seat compensates to maintain the seat tightness.

Large area of seat contact: this ensures increased tightness and shut-off potential.

Seat ring designed to move in the direction of flow: this allows pressure access in the back of the seat, thus making the seal progressively tighter as the pressure increases. During reverse flow, any deflection of the disc would tend to reduce the tightness but the pressure behind the seat compensates to maintain the seatring

Large area of seal contact: This ensures increased tightness and high shut-off potential..

Special Features :

• 4S-V30 valves could be used for both on/off and control duty. 
• Fully rated for 300#-can be used up to 50 bar pressure.
• As per design standard MS-SP68.
• Reliable design proved by cycle test.

Drilling Standard: ANSI B16.5 #300.