German spemll valve spemll model spemll price

spemll valves serve an on/off function. They are commonly installed at the inlets and outlets of cold and heat sources, equipment inlets and outlets, and pipeline branches (including risers), and can also be used as drain valves and air release valves. Common shut-off valves include gate valves, globe valves, ball valves, and butterfly valves. Gate valves can be classified into rising stem and non-rising stem, single wedge and double wedge, and wedge gate and parallel gate types. Gate valves do not provide tight shutoff, and large-diameter gate valves are difficult to open; the valve body size is small along the flow direction, resulting in low flow resistance, and gate valves have a wide range of nominal diameters. Globe valves are classified into straight-through, angle, and DC types based on media flow direction.