GTL-Z63Y welded oilfield gate valve has the characteristics of reliable sealing performance, small opening and closing torque, anti-sulfur and wear resistance, long service life, and can clean pipelines through hair balls; GTL-Z63Y parallel welded gate valve is suitable for water, oil, natural gas, As an opening and closing device in the pipeline system of steam and other non-corrosive and corrosive media, GTL-Z63Y welded oilfield gate valve is especially suitable for petrochemical, oil, gas, long-distance pipelines and other fields. They are all a kind of oilfield valve series, commonly used are high pressure, forged steel oilfield gate valve and oilfield globe valve. Valves used in oilfields must have very good sealing surfaces. Valves used in oilfields every year It accounts for 20% of the total, so the amount of oil field valves used in oil fields is still very large.
Structural characteristics and working principle:
1. Floating seat, reliable sealing, flexible opening and closing.
2. The lower part of the gate is opened with a guide hole, and give precision guidance, while the sealing part is sprayed with hard alloy, erosion resistance.
3. The valve body bearing capacity is high, the channel is straight-through, fully open, and the gate guide hole through and similar to the straight pipe, flow resistance is very small. The stem adopts compound packing, multiple sealing, making the sealing reliable, small friction.
4. When closing the valve, turn the handwheel clockwise, the gate moves down to the bottom, due to the action of medium pressure, push the inlet end sealing seat to the gate direction. The formation of a larger seal specific pressure, thus forming the first seal. At the same time, press the gate to the outlet end seal seat for a double seal.
5. Because of the use of double seal, so can not affect the pipeline work under the circumstances of replacement of wearing parts. This is an important feature of our products over similar products at home and abroad.
6. When opening the gate, turn the handwheel counterclockwise, the gate moves up, and the diversion hole is connected with the channel hole. With the rise of the gate, the through-hole gradually increases, * limit position, the diversion hole and the passage hole coincide, at this time fully open.
