偏心半球阀是一种独特的球阀设计,其阀芯采用偏心安装的半球形结构,主要用于精确控制流体的流量和压力。这种阀门以其非摩擦开关、自补偿磨损、优异的耐磨损和耐冲刷特性而著称。在开关过程中,半球体与阀座密封面之间不会产生摩擦,有效减少了密封件的磨损,从而大幅延长了阀门的使用寿命。偏心半球阀特别适用于处理含有固体颗粒、泥浆、灰渣、污水和纤维介质等高密度、易结垢或腐蚀性介质的工况,广泛应用于冶金、电力、石油化工、水处理、造纸等行业。
| 中文描述 | 英文描述 |
|---|---|
| 压力损失小:全开时水损为零,流道完全畅通,且介质不会沉积阀体内腔。 | Pressure loss: full-time water loss is zero, flow completely smooth, medium body will not be deposited in the cavity. |
| 耐颗粒磨损:V形开口的球冠与金属阀座具有剪切作用,在关闭过程中,只在最后——刻球冠才靠向阀座,不形成摩擦,且阀座用耐磨的镍合金制成,不易被冲刷磨损,因而适用于含纤维、微小固体颗粒、浆等。 | Granule abrasion resistance: V-shaped opening of the spherical cap and the shear effect between the metal valve seat, in the closing process, only the crown at the last moment before their eyes the ball valve seat, not the formation of friction and resistant seat grinding of nickel alloys, cannot easily be washed and wear, which applies to contain fiber, small solid particles, pulp, etc. |
| 适合高流速介质:直通流道,坚固的偏心曲轴使之适合高流速且无振动。 | Suitable for high-velocity medium: direct flow, strong eccentric - crank to fit the high velocity and no vibration. |
| 寿命长:无易损部件,由于偏心作用,阀门启闭时密封面间无摩擦,则使用寿命长。 | Long life: no wearing parts, as eccentric open and close the valve when the friction between the sealing surface, then the long service life. |
| 维修方便:阀门维修时无需从管路上拆下,只要打开阀盖即可进行维修。 | Easy maintenance: valve repair without removing the road from the tube, simply open the valve cover can be repaired. |
| 广泛适用于水、污水、含微固体颗粒、水、蒸汽、煤气、天然气、油品等。 | Widely used in water, sewage, solid particles containing micro- water, steam, gas, natural gas, oil and so on. |
| 中文描述 | 英文描述 |
|---|---|
| 设计和制造 | Design and manufacture: GB/T 12237-1989 |
| 检验和试验 | Inspection and test: GB/T 13927-1992 |
| 法兰连接 | Flange connection: GB/T 9113.1-2000 |
| 结构长度 | Structure length: JD-2004 |
| 零件名称 (中文) | Part Name (English) | 材料1 (灰铸铁 Grey cast iron) | 材料2 (球墨铸铁Ductile Iron) | 材料3 (铸钢Cast steel) |
|---|---|---|---|---|
| 阀体 | Body | 灰铸铁 | 球墨铸铁 | 铸钢 |
| 阀盖 | Bonnet | 灰铸铁 | 球墨铸铁 | 铸钢 |
| 阀杆 | Stem | 2Cr13 | 2Cr13 | 2Cr13 |
| 阀座 | Seat | 不锈钢 (Stainless steel) | 不锈钢 (Stainless steel) | 不锈钢 (Stainless steel) |
| 球冠 | Spherical | 球墨铸铁覆盖橡胶、不锈钢 (Ductile iron cover rubber, stainless steel) | 不锈钢 (Stainless steel) | 铸钢覆盖橡胶/不锈钢 (Rubber covered steel / stainless steel) |
| 半球 | Hemisphere | 灰铸铁 | 球墨铸铁 | 铸钢 |
暂无图纸。