bronze gate valves
1.material:B61,B62,B148
2.connection type:NPT
3.service:sea water

ASTM gate valve

is the most widely used in industry production of a truncated valves, compared with its truncated valve is closed by the rotation of open and close the valve stem, but use and driver withcircular disc (valve head), change the distance between disc and seat to control valve shut up.

Streamlined cut-off valve American standard type gate valves
racteristics: the gate valves are handwheels, stem and packing in central, threaded, small culvert seal on the valve stem threads in the body, the structure is compact, but stem contact with the media, especially the part to corrosion, threads from stem revealed the bonnet highly judge, in order to prevent the valve stem leakage from the media, but in the stem wear a bonnet parts to seal with packing.
Gate valve structure is complex, but not very simple operation, easy to adjust, flow and truncated channel, closed slowly without water hammer, so widely used.
When installing gate valves must pay attention to the flow direction of flow in the pipeline, should be made by the upward through seat, and the so-called "low", into the goal is to reduce the higher resistance to flow, open effort and closed stem and packing culvert of contact with the media, ensure the stem and packing without damage and leakage. Culvert
Globe valves are mainly used to water, steam, compressed air and all kinds of materials, but accurately adjust flow and closely truncation channel, but can not be used in viscosity, crystallizable materials.