Features of Globe Valves

(1) The cut-off valve structure is simpler than the gate valve, manufacturing and maintenance are more convenient.

(2) Sealing surface is not easy to wear and abrasion, good sealing, opening and closing disc and valve body sealing surface There is no relative sliding, so wear and abrasion are not serious, good sealing performance, long service life.

(3) When opening and closing, the disc stroke is small, so the cutoff valve height is smaller than the gate valve, but the structure length is longer than the gate valve.

(4) Opening and closing torque is large, opening and closing is more laborious, opening and closing time of the headmaster.

(5) The fluid resistance is large, because the valve body dielectric channel is more tortuous, the fluid resistance is large, the power consumption is large. (6) The medium flow direction of the nominal pressure Pn≤16mpa, generally used downstream, the medium from the valve under the direction of high; nominal pressure Pn≥20mpa, the general use of Countercurrent, the media from the direction of the disc dirty. To increase the seal energy.

When used, the cutoff valve medium can only flow in a single direction, can not change the flow direction.

(7) The disc is often eroded when fully open. The stem axis of the globe valve is perpendicular to the sealing surface of the seat.

The stem is relatively short on or off and has a very reliable cutting action, making the valve suitable for cutting or adjusting and throttling use as a medium.