進(jìn)口蒸汽調(diào)壓閥
一、進(jìn)口蒸汽調(diào)壓閥概述
品牌：美國(guó)歐可OKE
進(jìn)口蒸汽調(diào)壓閥，The steam pressure regulating valve，是指能將閥前的蒸汽壓力減到所需要的出口壓力，并將壓力穩(wěn)定在所需要的壓力值的減壓閥，屬于可調(diào)式先導(dǎo)活塞式減壓閥。由主閥和導(dǎo)閥兩部分組成。主閥主要由閥座、閥閥盤、活塞、缸套、彈簧等零件組成。導(dǎo)閥主要由閥座、閥瓣、膜片、彈簧、調(diào)節(jié)彈簧等零件組成。通過(guò)調(diào)節(jié)調(diào)節(jié)彈簧壓力設(shè)定出口壓力，利用膜片傳感出口壓力變化，通過(guò)導(dǎo)閥啟閉驅(qū)動(dòng)活塞調(diào)節(jié)主閥節(jié)流部位過(guò)流面積的大小，實(shí)現(xiàn)減壓穩(wěn)壓功能。進(jìn)口蒸汽調(diào)壓閥主要用于蒸汽管路，起到減壓穩(wěn)壓作用。
二、進(jìn)口蒸汽調(diào)壓閥主要技術(shù)參數(shù)和性能指標(biāo)：
公稱壓力（MPa） 1.6 2.5 4.0 6.4 10.0 16.0
殼化試驗(yàn)壓力（MPa） 2.4 3.75 6.0 9.6 15.0 24
密封試驗(yàn)壓力（MPa） 1.6 2.5 4.0 6.4 10.0 16.0
進(jìn)口壓力（MPa） 1.6 2.5 4.0 6.4 10.0 16.0
出口壓力范圍（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
口徑 DN15-500
溫度 0-450℃
最小壓差（MPa） 0.15 0.15 0.2 0.4 0.8 1.0
控制精度誤差 ≤3%
           
*.殼體試驗(yàn)不包括膜片、頂蓋。
三、進(jìn)口蒸汽調(diào)壓閥流量系數(shù)(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、進(jìn)口蒸汽調(diào)壓閥主要零件材料：
零件名稱 零件材料
閥體 閥蓋 底蓋 WCB，不銹鋼304、316
閥座 閥盤 2Cr13
缸套 2Cr13/銅合金
活塞 合金鑄鐵
導(dǎo)閥座 導(dǎo)閥桿 2Cr13
主閥彈簧 1Cr18Ni9Ti
導(dǎo)閥主彈簧 50CrVA
調(diào)節(jié)彈簧 60Si12Mn

五、美國(guó)歐可OKE進(jìn)口蒸汽調(diào)壓閥業(yè)績(jī)
北京碧水源凈水科技有限公司,三諾生物,國(guó)瓷材料,冠昊生物公司中國(guó)港灣建設(shè)（集團(tuán)）總公司中國(guó)中煤能源集團(tuán)公司公司邯鄲鋼鐵集團(tuán)有限責(zé)任公司上海紡織控股（集團(tuán)）公司，浙江富興電力燃料有限公司,廣州明珠電力（集團(tuán)）股份有限公司，成都熱電廠內(nèi)蒙古蒙電華能熱電股份有限公司，山東菏澤鍋爐（集團(tuán)）廠有限公司，吉祥化工設(shè)備公司，四川省宜賓五糧液集團(tuán)有限公司，杭州娃哈哈集團(tuán)有限公司，維維集團(tuán)統(tǒng)一企業(yè)中國(guó)公司，內(nèi)蒙古蒙牛乳業(yè)集團(tuán)股份有限公司

六、進(jìn)口蒸汽調(diào)壓閥安裝說(shuō)明書
1、蒸汽調(diào)壓閥安裝前必須對(duì)管路系統(tǒng)進(jìn)行沖洗清理。以防焊渣，氧化皮等贓物流入閥內(nèi)，影響閥門正常工作。
2、蒸汽調(diào)壓閥應(yīng)安裝在便于操作和維修的地方，并且必須直立安裝在水平管道上，應(yīng)注意使管路中介質(zhì)的流向與閥體上箭頭所示方向一致，切勿反裝。
3、蒸汽調(diào)壓閥在安裝使用時(shí)，應(yīng)把旁通管道的截止閥打開(kāi)，排除管路中的冷凝水和汽水的混合物，以防減壓閥開(kāi)啟時(shí)產(chǎn)生水圾現(xiàn)象損壞減壓閥，當(dāng)無(wú)異常現(xiàn)象后，按順時(shí)針?lè)较蚓徛D(zhuǎn)調(diào)節(jié)螺釘，將出口壓力調(diào)至所需的壓力(以閥后表壓為準(zhǔn))，調(diào)整后，將鎖緊螺母背緊，擰上防護(hù)罩。
4、蒸汽調(diào)壓閥前應(yīng)安裝過(guò)濾器，以防介質(zhì)中的雜物進(jìn)入減壓閥，影響其性能。
5、安裝的減壓閥前后應(yīng)有一段直管，閥前的直管長(zhǎng)度約為600毫米，閥后的直管長(zhǎng)度約為1000毫米。
6、蒸汽調(diào)壓閥要求進(jìn)出口壓差必須≥0.2Mpa。
7、蒸汽調(diào)壓閥的管網(wǎng)必須裝安全閥，以防減壓閥失效壓力升高造成系統(tǒng)或者設(shè)備的破壞。

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

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.