进口蒸汽调压阀
一、进口蒸汽调压阀概述
品牌：美国欧可OKE
进口蒸汽调压阀，The steam pressure regulating valve，是指能将阀前的蒸汽压力减到所需要的出口压力，并将压力稳定在所需要的压力值的减压阀，属于可调式先导活塞式减压阀。由主阀和导阀两部分组成。主阀主要由阀座、阀阀盘、活塞、缸套、弹簧等零件组成。导阀主要由阀座、阀瓣、膜片、弹簧、调节弹簧等零件组成。通过调节调节弹簧压力设定出口压力，利用膜片传感出口压力变化，通过导阀启闭驱动活塞调节主阀节流部位过流面积的大小，实现减压稳压功能。进口蒸汽调压阀主要用于蒸汽管路，起到减压稳压作用。
二、进口蒸汽调压阀主要技术参数和性能指标：
公称压力（MPa） 1.6 2.5 4.0 6.4 10.0 16.0
壳化试验压力（MPa） 2.4 3.75 6.0 9.6 15.0 24
密封试验压力（MPa） 1.6 2.5 4.0 6.4 10.0 16.0
最高进口压力（MPa） 1.6 2.5 4.0 6.4 10.0 16.0
出口压力范围（MPa） 1.0-1.0 0.1-1.6 0.1-2.5 0.5-4.0 0.5-6.4 0.5-10.0
口径 DN15-500
温度 0-450℃
最小压差（MPa） 0.15 0.15 0.2 0.4 0.8 1.0
控制精度误差 ≤3%
           
*.壳体试验不包括膜片、顶盖。
三、进口蒸汽调压阀流量系数(Cv)：
DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500
Cv 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500

四、进口蒸汽调压阀主要零件材料：
零件名称 零件材料
阀体 阀盖 底盖 WCB，不锈钢304、316
阀座 阀盘 2Cr13
缸套 2Cr13/铜合金
活塞 合金铸铁
导阀座 导阀杆 2Cr13
主阀弹簧 1Cr18Ni9Ti
导阀主弹簧 50CrVA
调节弹簧 60Si12Mn

五、美国欧可OKE进口蒸汽调压阀业绩
北京碧水源净水科技有限公司,三诺生物,国瓷材料,冠昊生物中国石油化工集团公司中国港湾建设（集团）总公司中国中煤能源集团公司中国大唐集团公司邯郸钢铁集团有限责任公司上海纺织控股（集团）公司，浙江富兴电力燃料有限公司,广州明珠电力（集团）股份有限公司，成都热电厂内蒙古蒙电华能热电股份有限公司，山东菏泽锅炉（集团）厂有限公司，吉祥化工设备公司，四川省宜宾五粮液集团有限公司，杭州娃哈哈集团有限公司，维维集团统一企业中国公司，内蒙古蒙牛乳业集团股份有限公司

六、进口蒸汽调压阀安装说明书
1、蒸汽调压阀安装前必须对管路系统进行冲洗清理。以防焊渣，氧化皮等赃物流入阀内，影响阀门正常工作。
2、蒸汽调压阀应安装在便于操作和维修的地方，并且必须直立安装在水平管道上，应注意使管路中介质的流向与阀体上箭头所示方向一致，切勿反装。
3、蒸汽调压阀在安装使用时，应把旁通管道的截止阀打开，排除管路中的冷凝水和汽水的混合物，以防减压阀开启时产生水圾现象损坏减压阀，当无异常现象后，按顺时针方向缓慢旋转调节螺钉，将出口压力调至所需的压力(以阀后表压为准)，调整后，将锁紧螺母背紧，拧上防护罩。
4、蒸汽调压阀前应安装过滤器，以防介质中的杂物进入减压阀，影响其性能。
5、安装的减压阀前后应有一段直管，阀前的直管长度约为600毫米，阀后的直管长度约为1000毫米。
6、蒸汽调压阀要求进出口压差必须≥0.2Mpa。
7、蒸汽调压阀的管网必须装安全阀，以防减压阀失效压力升高造成系统或者设备的破坏。

Imported steam regulator
I. Overview of imported steam regulators
Brand: US Ouke OKE
The steam pressure regulating valve refers to a pressure reducing valve that can reduce the steam pressure in front of the valve to the required outlet pressure and stabilize the pressure at the required pressure value. It is an adjustable pilot piston type. Pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, valve disc, piston, cylinder sleeve and spring. The pilot valve is mainly composed of a valve seat, a valve disc, a diaphragm, a spring, an adjustment spring and the like. The outlet pressure is set by adjusting the adjustment spring pressure, and the diaphragm sensing outlet pressure is changed, and the pilot valve is opened and closed by the pilot valve to adjust the overflow area of ??the throttle portion of the main valve to realize the pressure reduction and voltage stabilization function. The imported steam pressure regulating valve is mainly used for the steam line and functions as a pressure reducing regulator.
Second, the main technical parameters and performance indicators of imported steam pressure regulating valve:
Nominal pressure (MPa) 1.6 2.5 4.0 6.4 10.0 16.0
Shelling test pressure (MPa) 2.4 3.75 6.0 9.6 15.0 24
Sealing test pressure (MPa) 1.6 2.5 4.0 6.4 10.0 16.0
Maximum inlet pressure (MPa) 1.6 2.5 4.0 6.4 10.0 16.0
Outlet pressure range (MPa) 1.0-1.0 0.1-1.6 0.1-2.5 0.5-4.0 0.5-6.4 0.5-10.0
Caliber DN15-500
Temperature 0-450 ° C
Minimum differential pressure (MPa) 0.15 0.15 0.2 0.4 0.8 1.0
Control accuracy error ≤3%

*. The shell test does not include the diaphragm and the top cover.
Third, the inlet steam pressure regulating valve flow coefficient (Cv):
DN 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500
Cv 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500

Fourth, the main components of the imported steam pressure regulating valve:
Part Name Part Material
Body bonnet bottom cover WCB, stainless steel 304, 316
Seat valve disc 2Cr13
Cylinder liner 2Cr13/copper alloy
Piston alloy cast iron
Guide valve seat guide valve rod 2Cr13
Main valve spring 1Cr18Ni9Ti
Pilot valve main spring 50CrVA
Adjustment spring 60Si12Mn

V. US Ou OKe imported steam pressure regulator performance
Beijing Bishuiyuan Water Purification Technology Co., Ltd., Sannuo Bio, China Ceramics Materials, Guanxi Bio-China Petrochemical Corporation China Harbour Construction (Group) Corporation China China Coal Energy Group Corporation China Datang Corporation Corporation Handan Iron and Steel Group Co., Ltd. Shanghai Textile Holding (Group) Company, Zhejiang Fuxing Electric Fuel Co., Ltd., Guangzhou Mingzhu Electric Power (Group) Co., Ltd., Chengdu Thermal Power Plant Inner Mongolia Mengdian Huaneng Thermal Power Co., Ltd., Shandong Heze Boiler (Group) Factory Co., Ltd., Jixiang Chemical Equipment Co., Ltd. , Sichuan Yibin Wuliangye Group Co., Ltd., Hangzhou Wahaha Group Co., Ltd., Weiwei Group Uniform Enterprise China, Inner Mongolia Mengniu Dairy Group Co., Ltd.

Sixth, imported steam pressure regulator installation instructions
1. The steam pressure regulator must be flushed and cleaned before installation. In order to prevent the welding slag, oxide scale and other sputum from flowing into the valve, affecting the normal operation of the valve.
2. The steam pressure regulating valve should be installed in a place convenient for operation and maintenance, and must be installed upright on the horizontal pipe. It should be noted that the flow direction of the medium in the pipeline is consistent with the direction indicated by the arrow on the valve body, and must not be reversed.
3. When the steam pressure regulating valve is installed and used, the shut-off valve of the bypass pipe should be opened to eliminate the mixture of condensed water and soda water in the pipeline to prevent the garbage valve from damaging the pressure reducing valve when the pressure reducing valve is opened. After no abnormality, slowly rotate the adjusting screw clockwise to adjust the outlet pressure to the required pressure (according to the valve back pressure). After adjustment, tighten the lock nut and tighten the protective cover.
4. A filter should be installed before the steam pressure regulating valve to prevent debris in the medium from entering the pressure reducing valve and affecting its performance.
5. There should be a straight pipe before and after the installed pressure reducing valve. The length of the straight pipe in front of the valve is about 600 mm, and the length of the straight pipe behind the valve is about 1000 mm.
6. The steam pressure regulating valve requires the pressure difference between the inlet and outlet to be ≥0.2Mpa.
7. The pipe network of the steam pressure regulating valve must be equipped with a safety valve to prevent damage to the system or equipment caused by the pressure failure of the pressure reducing valve.