Features of Butt Welded Slab Gate Valves and Flanged Slab Gate Valves
Features of Butt Welded Slab Gate Valves and Flanged Slab Gate Valves
The slab gate valve is a sliding valve whose closing part is a parallel wedge. The closing part can be a single valve disc or a double valve disc with a supporting mechanism between them. A slab gate valve is divided into butt welded slab gate valves and flanged slab gate valves. What are the characteristics of these two gate valves? Next, DERVOS will show you.
Butt Welded Slab gate valves Flange Slab gate valves
Features of Butt Welded Slab gate valves
1. Small fluid resistance and small scouring and erosion of sealing surface by medium
2. Easy opening and closing
3. Not restricted medium flow direction
4. Simple shapes, short structure length, good manufacturing processes and wide application ranges
Features of Flanged Slab gate valves
1. The valve seat sealing structure of the flanged slab gate valve is elastic with preload, and the upstream and downstream sealing valve seats are sealed at the same time. The valve seat and seal are face-to-face sealed.
2. The valve seat has self-cleaning function and is not directly scoured by the air flow during the opening or closing of the valve. The valve seat is made of lubricated and non-abrasive materials.
3. The failure of the valve actuator will not affect other parts of the valve, and it can be repaired and replaced without removing the valve.
4. When the flanged slab gate valve is fully opened, the channel is smooth and straight; the flow resistance coefficient is extremely small, and there is no pressure loss.
The slab gate valve adopts the packing with self sealing, which has reliable sealing performance and truly achieves zero leakage. It solves the problem of easy leakage at the packing of the general valve.
The slab gate valve is a sliding valve whose closing part is a parallel wedge. The closing part can be a single valve disc or a double valve disc with a supporting mechanism between them. A slab gate valve is divided into butt welded slab gate valves and flanged slab gate valves. What are the characteristics of these two gate valves? Next, DERVOS will show you.
Butt Welded Slab gate valves Flange Slab gate valves
Features of Butt Welded Slab gate valves
1. Small fluid resistance and small scouring and erosion of sealing surface by medium
2. Easy opening and closing
3. Not restricted medium flow direction
4. Simple shapes, short structure length, good manufacturing processes and wide application ranges
Features of Flanged Slab gate valves
1. The valve seat sealing structure of the flanged slab gate valve is elastic with preload, and the upstream and downstream sealing valve seats are sealed at the same time. The valve seat and seal are face-to-face sealed.
2. The valve seat has self-cleaning function and is not directly scoured by the air flow during the opening or closing of the valve. The valve seat is made of lubricated and non-abrasive materials.
3. The failure of the valve actuator will not affect other parts of the valve, and it can be repaired and replaced without removing the valve.
4. When the flanged slab gate valve is fully opened, the channel is smooth and straight; the flow resistance coefficient is extremely small, and there is no pressure loss.
The slab gate valve adopts the packing with self sealing, which has reliable sealing performance and truly achieves zero leakage. It solves the problem of easy leakage at the packing of the general valve.