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進口蒸汽減壓閥
一、進口蒸汽減壓閥產(chǎn)品概述
品牌：美國歐可OKE
進口蒸汽減壓閥，steam reducing valve，也叫蒸汽調(diào)壓閥，是指用于蒸汽管道系統(tǒng)，通過導(dǎo)閥感應(yīng)閥后壓力的變化，調(diào)節(jié)主閥的閥芯開度，將蒸汽管道的進口壓力減至某一需要的出口壓力，并穩(wěn)定在壓力值的閥門。此閥依靠蒸汽介質(zhì)本身的能量,使出口壓力自動膜片采用了新型材料，并大大加工了工作面積，因此閥門上游壓力或下游負荷細微的變化都能及時準確的反饋到主閥膜片，來調(diào)節(jié)主閥的開度，確保下游壓力的穩(wěn)定。

二、進口蒸汽減壓閥主要技術(shù)參數(shù)和性能指標The main technical parameters and performance indicators
公稱壓力Nominal pressure(Mpa) 2.5
殼體試驗壓力Shell test pressure(Mpa)* 3.75
密封試驗壓力Sealing test pressure (Mpa) 2.5
進口壓力Max inlet pressure(Mpa) 2.5
出口壓力范圍Outlet pressure range(Mpa) 0.02-1.6
壓力特性偏差Pressure characteristic deviation(Mpa)△P2P GB12244-1989
流量特性偏差Flow characteristic deviation (Mpa)P2G GB12244-1989
*：殼體試驗不包括膜片、閥蓋。

三、進口蒸汽減壓閥主要零件材料Main parts and materials
零件名稱Part name Materials
閥體閥蓋 Body/Cover WCB
閥座 Valve 2Cr13
閥瓣Stem 2Cr13
閥桿Stem 2Cr13
膜片Diaphragm 1Cr18Ni9Ti
調(diào)節(jié)彈簧spring 60Si2Mn

四、進口蒸汽減壓閥流量系數(shù)Flow coefficient (Cv)
DN 15 20 25 32 40 50
Cv 2.9 5.3 8.6 11.6 16.5 29.1

五、進口蒸汽減壓閥連接尺寸Connection Size

DN L H1 H D
15 147 235 145 207
20 154 235 145 207
25 160 235 145 207
32 180 250 160 220
40 16 250 160 220
50 230 270 180 220

六、美國歐可OKE進口蒸汽減壓閥業(yè)績
北京碧水源凈水科技有限公司,三諾生物,國瓷材料,冠昊生物公司中國港灣建設(shè)（集團）總公司中國中煤能源集團公司公司邯鄲鋼鐵集團有限責(zé)任公司上海紡織控股（集團）公司，浙江富興電力燃料有限公司,廣州明珠電力（集團）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）廠有限公司，吉祥化工設(shè)備公司，四川省宜賓五糧液集團有限公司，杭州娃哈哈集團有限公司，維維集團統(tǒng)一企業(yè)中國公司，內(nèi)蒙古蒙牛乳業(yè)集團股份有限公司

七、進口蒸汽減壓閥安裝說明書
1、蒸汽減壓閥安裝前必須對管路系統(tǒng)進行沖洗清理。以防焊渣，氧化皮等贓物流入閥內(nèi)，影響閥門正常工作。
2、蒸汽減壓閥應(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、蒸汽減壓閥在安裝使用時，應(yīng)把旁通管道的截止閥打開，排除管路中的冷凝水和汽水的混合物，以防減壓閥開啟時產(chǎn)生水圾現(xiàn)象損壞減壓閥，當(dāng)無異?，F(xiàn)象后，按順時針方向緩慢旋轉(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)，調(diào)整后，將鎖緊螺母背緊，擰上防護罩。
4、蒸汽減壓閥前應(yīng)安裝過濾器，以防介質(zhì)中的雜物進入減壓閥，影響其性能。
5、安裝的減壓閥前后應(yīng)有一段直管，閥前的直管長度約為600毫米，閥后的直管長度約為1000毫米。
6、蒸汽減壓閥要求進出口壓差必須≥0.2Mpa。
7、蒸汽減壓閥的管網(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 pressure reducing valve
I. Overview of imported steam pressure reducing valve products
Brand: US Ouke OKE
Imported steam pressure reducing valve, also known as steam pressure regulating valve, refers to the steam pipe system, the pressure change after the valve is sensed through the pilot valve, adjust the valve opening of the main valve, the inlet pressure of the steam pipe Reduce to a required outlet pressure and stabilize the valve at the pressure value. The valve relies on the energy of the steam medium itself, so that the outlet pressure automatic diaphragm adopts a new material and greatly processes the working area, so the slight change of the upstream pressure or the downstream load of the valve can be timely and accurately fed back to the main valve diaphragm. Adjust the opening of the main valve to ensure the stability of the downstream pressure.

Second, the main technical parameters and performance indicators of the imported steam pressure reducing valve
Nominal pressure (Mpa) 2.5
Shell test pressure (Mpa)* 3.75
Sealing test pressure (Seal test pressure (Mpa) 2.5
Maximum inlet pressure Max inlet pressure (Mpa) 2.5
Outlet pressure range (Mpa) 0.02-1.6
Pressure characteristic deviation (Mpa) △ P2P GB12244-1989
Flow characteristic deviation (Mpa)P2G GB12244-1989
*: The housing test does not include diaphragms or bonnets.

Third, the main parts and materials of the imported steam pressure reducing valve
Part name Part name Materials
Body bonnet Body/Cover WCB
Seat Valve 2Cr13
Disc Stem 2Cr13
Stem Stem 2Cr13
Diaphragm Diaphragm 1Cr18Ni9Ti
Adjustment spring spring 60Si2Mn

Fourth, the inlet steam pressure reducing valve flow coefficient Flow coefficient (Cv)
DN 15 20 25 32 40 50
Cv 2.9 5.3 8.6 11.6 16.5 29.1

Five, imported steam pressure reducing valve connection size Connection Size

DN L H1 H D
15 147 235 145 207
20 154 235 145 207
25 160 235 145 207
32 180 250 160 220
40 16 250 160 220
50 230 270 180 220

Sixth, the United States Europe can OKE import steam pressure reducing valve 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.

Seven, imported steam pressure reducing valve installation instructions
1. The steam pressure relief valve 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 reducing 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 pipe is consistent with the direction indicated by the arrow on the valve body, and must not be reversed.
3. When the steam pressure reducing 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 reducing 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, steam pressure reducing valve requires inlet and outlet pressure difference must be ≥ 0.2Mpa.
7. The pipe network of the steam pressure reducing 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.