品牌：RETZ瑞茨/我們一直致力于流體控制和測(cè)控領(lǐng)域的持續(xù)創(chuàng)新，始于2005……
進(jìn)口電動(dòng)切斷球閥(V型閥芯，O型閥芯）具有結(jié)構(gòu)緊湊，切換迅速，流通能力大，閥座與端面法蘭距離近，物料滯留少，密封性能優(yōu)良等特點(diǎn)
retz Imported electric cut-off ball valve (V-type valve core, O-type valve core) is characterized by compact structure, rapid switching, large flow capacity, close distance between valve seat and end flange, less material retention, and excellent sealing performance
功能介紹 Function introduction
進(jìn)口電動(dòng)切斷球閥(V型閥芯，O型閥芯）具有全通徑和縮徑兩種結(jié)構(gòu)形式。用于輸送粘性、易結(jié)渣介質(zhì)管道上使用全通徑的，方便定期的刮蠟吹掃器通過(guò)。進(jìn)口電動(dòng)切斷球閥2.jpg用于輸送氣體或物理性能近似于水的介質(zhì)的管道上宜使用縮徑球閥，因其重量比全通徑的電動(dòng)球閥輕30%左右，有利于減輕管道負(fù)荷retz The imported electric cut-off ball valve (V-type valve core, O-type valve core) has two structural forms of full bore and reduced bore. It is used for conveying viscous and slag-prone medium, and it is convenient for regular paraffin scraper and purging to pass through. The reduced-diameter ball valve should be used on the pipeline for transporting gas or medium with physical properties similar to water, because its weight is about 30% lighter than the full-diameter electric ball valve, which is beneficial to reducing the pipeline load
設(shè)計(jì)特色 Design features
采用全通徑或縮徑設(shè)計(jì)，流通阻力小 Full bore or reduced bore design, low flow resistance
采用高平臺(tái)結(jié)構(gòu)，ISO5211連接標(biāo)準(zhǔn)，能使安裝電/氣動(dòng)執(zhí)行器更為專業(yè)化 High platform structure and ISO5211 connection standard can make the installation of electric/pneumatic actuators more professional
閥桿采用內(nèi)裝式，軸肩及聚四氟乙烯（或增強(qiáng)石墨）推力墊結(jié)構(gòu)防止閥桿因管道內(nèi)壓力 而吹 出，同時(shí)聚四氟乙烯（或增強(qiáng)石墨）材料減小閥門(mén)的啟閉扭矩，使操作更為省力 The valve rod is internally mounted, with the shoulder and Teflon (or reinforced graphite) thrust pad structure to prevent the valve rod from blowing out due to the pressure in the pipe. At the same time, Teflon (or reinforced graphite) material reduces the opening and closing torque of the valve, making the operation more labor-saving
具有防火防靜電結(jié)構(gòu)，在閥桿與閥體及閥桿與球體之間設(shè)置導(dǎo)電彈簧，避免因靜電打火點(diǎn)燃易燃介質(zhì) It has a fireproof and anti-static structure, and a conductive spring is set between the valve rod and the valve body and between the valve rod and the ball to avoid igniting flammable media due to static electricity
耐火結(jié)構(gòu)雙重保護(hù)，當(dāng)萬(wàn)一發(fā)生火災(zāi)而使密封圈燒損時(shí)，球閥的各個(gè)密封部位均能形成金屬對(duì)金屬的硬密封結(jié)構(gòu) The fire-resistant structure has double protection. When the sealing ring is burnt in case of fire, all sealing parts of the ball valve can form a metal-to-metal hard sealing structure
進(jìn)口電動(dòng)切斷球閥執(zhí)行器技術(shù)參數(shù) Technical parameters of actuator
電源電壓 AC220/380V，50/60Hz
輸出力矩 50N•M～2000N•M
動(dòng)作范圍 0～90° 0～360°
動(dòng)作時(shí)間 15秒/30秒/60秒
保護(hù)裝置 過(guò)熱保護(hù)
環(huán)境溫度 -30°～60°
手動(dòng)操作 同附帶手柄操作
限位 電氣、機(jī)械二重限位
防護(hù)等級(jí) 相當(dāng)于IP-65
防爆等級(jí) ExdII BT4；特殊要求可定制ExdII BT6
位置測(cè)量 可選裝開(kāi)關(guān)或電位計(jì)
驅(qū)動(dòng)電機(jī) 8W/E
進(jìn)線接口 PE1/2〞進(jìn)線線鎖
主要技術(shù)參數(shù)及性能 Main technical parameters and performance
公稱通徑(mm) 15 20 25 32 40 50 65 80 100 125 150 200 250 300
流量系數(shù)Kv 21 38 72 112 170 273 384 512 940 1452 2222 3589 5128 7359
公稱壓力(MPa) PN1.6、2.5、4.0、6.4MPa
泄漏量 軟密封：零泄漏；硬密封：≤額定流量的10-5
閥體形式 兩段式閥體(浮動(dòng)球體) 兩段式閥體(固定球體)
閥芯形式 “O”型球形閥芯
密封填料 聚四氟乙烯(PTFE)、金屬石墨纏繞墊片
連接形式 法蘭、焊接、螺紋、對(duì)夾
流量特性 近似快開(kāi)特性
可調(diào)范圍 DN15-65 DN80-300
250:1 350:1
基本誤差 ±1%
死區(qū) ≤1%
回差 ≤1%
適用溫度 密封面
PTFE≤150℃ RTFE≤180℃ PPL≤300℃ 硬密封≤450℃
配置執(zhí)行機(jī)構(gòu) 角行程電動(dòng)執(zhí)行機(jī)構(gòu)
控制方式 開(kāi)關(guān)到位燈(開(kāi)關(guān)兩位控制)、無(wú)源觸點(diǎn)信號(hào)、1/5K電位計(jì)、智能調(diào)節(jié)(4～20mA模擬量信號(hào)控制)
主要零件材料 Material of main parts
零件名稱 材料名稱
閥體 WCB 304(CF8) 316(CF8M) 316L(CF3M)
球體 2Cr13+氮化處理 304 316 316L
閥桿 2Cr13 304 316 316L
密封圈 聚四氟乙烯(PTFE)、增強(qiáng)聚四氟乙烯(PPL)、對(duì)位聚苯、柔性石墨
適用介質(zhì) 水、氣體、蒸汽、油品等 硝酸等腐蝕性介質(zhì) 醋酸等腐蝕介質(zhì) 尿素等腐蝕性介質(zhì)
