RD-14H型VENN阀天蒸汽减压阀 日本阀天RD-14H减压阀详细描述:RD-14H valve is suitable for: oil, pressure 1.0Mpa following caliber range: 20-150mm Suitable temperature: 5-90 ℃ Body material: cast iron valves day Japan RD-14H is by adjusting the valve, the inlet pressure is reduced to the outlet pre